PPVC connector

Abstract

A PPVC connector is provided for joining a first PPVC (Prefabricated Prefinished Volumetric Construction) module and a second PPVC module. The PPVC connector is adopted for coupling or joining a first PPVC module and a second PPVC module together, comprising a first anchor for attaching to the first PPVC module; a second anchor for attaching to the second PPVC module; and a frame for coupling the first anchor and the second anchor together. The first anchor, the second anchor, the frame or a combination of any of these components comprise a plate having at least one side for attaching to one of the PPVC Module. Due to confinement effect, the first module and the second module are prevented from detachment so as to bind the first PPVC module and the second PPVC module together permanently to form a monolithic assemble.

Claims

1. A Prefabricated Prefinished Volumetric Construction (PPVC) connector for coupling a first PPVC module and a second PPVC module, the PPVC connector comprising: a first anchor for attaching to the first PPVC module; a second anchor for attaching to the second PPVC module; and a frame for coupling the first anchor and the second anchor together; wherein the first anchor, the second anchor, the frame or a combination of any of these comprises a plate for attaching to one of the first and second PPVC modules; the first PPVC module and the second PPVC module are separated by a grating gap; and the frame comprises at least one coupler, the at least one coupler comprises a dumbbell coupler having at least one shaft with two opposite ends; wherein the at least one of the opposite ends of the dumbbell coupler comprises at least one elongated pole connected at one of the opposite ends for enlarging the opposite end, a longitudinal axis of the at least one elongated pole is substantially perpendicular to a longitudinal axis of the at least one shaft.

2. The PPVC connector of claim 1, wherein the plate comprises multiple sides for respectively attaching to one of the PPVC modules.

3. The PPVC connector of claim 1, wherein the first anchor, the second anchor, the frame or a combination of any of these are configured to enclose a cavity in-between for receiving a filler in order to create a confinement effect.

4. The PPVC connector of claim 1, wherein the frame comprises at least one plate, at least one rod, or a combination of both.

5. The PPVC connector of claim 4, wherein the at least one plate, at least one rod or a combination of both are configured to extend beyond one of the first and second PPVC module for connecting PPVC modules vertically.

6. The PPVC connector of claim 1, wherein the at least one coupler comprises a first coupler having two wings that are spaced apart for providing a receptacle in order to receive portions of the first anchor and the second anchor, wherein each of the two wings further comprises a lipped portion and a lipped overhanging portion.

7. The PPVC connector of claim 1, wherein the dumbbell coupler which comprises at least one shaft with two opposite ends, one or both of the opposite ends having a larger cross section area than a cross section area of the shaft between the two opposite ends.

8. The PPVC connector of claim 1 further comprising at least one elongated bar that is substantially parallel to at least one of the first anchor, the second anchor or the frame.

9. An assembly of PPVC modules comprising a first PPVC module; a second PPVC module, wherein the first PPVC module and the second PPVC module are arranged to be separated by a grating gap; the PPVC connector of claim 1; and a filler at the PPVC connector and the grating gap for joining the first PPVC module and the second PPVC module together by a confinement effect; wherein the first anchor is attached to the first PPVC module, and the second anchor is attached to the second PPVC module.

10. The assembly of PPVC modules of claim 9, wherein the filler fills a cavity formed by the first anchor, the second anchor, the frame or a combination of any of these.

11. The assembly of PPVC modules of claim 9, further comprising a binder for binding walls of the first PPVC module and the second PPVC module together.

12. A stacked assembly of PPVC modules comprising a first PPVC module; a second PPVC module attached to the first PPVC module laterally, a third PPVC module attached to the first PPVC module vertically; wherein the first PPVC module and the third PPVC module share at least a portion of the PPVC connector according to claim 1.

13. The stacked assembly of PPVC modules of claim 12, wherein the PPVC connector comprises a frame that extends to both the first PPVC module and the third PPVC module.

14. The stacked assembly of PPVC modules of claim 12, further comprising a filler in the PPVC connector for joining the first PPVC module, the second PPVC module and the third PPVC module.

15. A method for using a Prefabricated Prefinished Volumetric Construction (PPVC) connector, the method comprising attaching a first plate of a first anchor to a first PPVC module; attaching a second plate of a second anchor to a second PPVC module; aligning the first PPVC module and the second PPVC module in order to provide a cavity between the first plate and the second plate; and coupling the first anchor and the second anchor together by a frame in order to prevent detachment between the first PPVC module and the second PPVC module; wherein the first PPVC module and the second PPVC module are separated by a grating gap; the frame comprises at least one coupler, the at least one coupler comprises a dumbbell coupler having at least one shaft with two opposite ends; wherein the at least one of the opposite ends of the dumbbell coupler comprises at least one elongated pole connected at one of the opposite ends for enlarging the opposite end, a longitudinal axis of the at least one elongated pole is substantially perpendicular to a longitudinal axis of the at least one shaft.

16. The method of claim 15 wherein coupling the first anchor and the second anchor further comprises installing a first coupler for providing a receptacle in order to receive portions of the first anchor and the second anchor.

17. The method of claim 15 further comprising filling the cavity between the first anchor, the second anchor and the frame with a filler.

18. A The method for making the PPVC connector of claim 1, the method comprising providing a first plate; corrugating the first plate for improving surface adhesion of the first plate; folding the first plate in order to provide a cavity of a first anchor; providing a second plate; corrugating the second plate for improving surface adhesion of the second plate; folding the second plate in order to provide another cavity of a second anchor; and presenting a frame for joining the first anchor and the second anchor at their cavities.

19. The method of claim 18 further comprising offering a frame for coupling the first plate and the second plate as an anchor with another anchor together.

Description

(1) The accompanying figures (Figs.) illustrate embodiments and serve to explain principles of the disclosed embodiments. It is to be understood, however, that these figures are presented for purposes of illustration only, and not for defining limits of relevant applications.

(2) FIG. 1 illustrates a plan of two facing walls with an assembly of a first embodiment;

(3) FIG. 2 illustrates a plan and a perspective of the assembly for coupling the two facing walls of a first embodiment;

(4) FIG. 3 illustrates a perspective of a C-channel and a lipped C-channel of a first embodiment;

(5) FIG. 4 illustrates a perspective of an inner face of a first wall having five indentations of a first embodiment;

(6) FIG. 5 illustrates a perspective of two facing walls with the assembly of a first embodiment;

(7) FIG. 6 illustrates a side view of two walls stack on top of each other of a first embodiment; and

(8) FIG. 7 illustrates a perspective of two PPVC modules joined at an adjoining long face of a first embodiment.

(9) FIG. 8 illustrates a plan of two facing walls with an assembly of a second embodiment;

(10) FIG. 9 illustrates a plan of the assembly for coupling the two facing walls of a second embodiment;

(11) FIG. 10 illustrates a perspective of the assembly for coupling the two facing walls of a second embodiment;

(12) FIG. 11 illustrates an exploded view of a C-channel and a dumbbell coupler of the second embodiment;

(13) FIG. 12 illustrates a perspective of an inner face of a first wall having three indentations of a second embodiment;

(14) FIG. 13 illustrates a perspective of two facing walls with the assembly of a second embodiment;

(15) FIG. 14 illustrates a side view of two walls stacked on top of each other of a second embodiment; and

(16) FIG. 15 illustrates a perspective of two PPVC modules joined at an adjoining long face of a second embodiment;

(17) FIG. 16 illustrates a plan of two facing walls with an assembly of a third embodiment;

(18) FIG. 17 illustrates a plan of the assembly for coupling the two facing walls of a third embodiment;

(19) FIG. 18 illustrates a perspective of the assembly for coupling the two facing walls of a third embodiment;

(20) FIG. 19 illustrates an exploded view of a C-channel and a dumbbell coupler of the third embodiment;

(21) FIG. 20 illustrates a perspective of an inner face of a first wall having three indentations of a third embodiment;

(22) FIG. 21 illustrates a perspective of two facing walls with the assembly of a third embodiment;

(23) FIG. 22 illustrates a side view of two facing walls with the assembly of a third embodiment;

(24) FIG. 23 illustrates a side view of two walls stacked on top of each other of a third embodiment; and

(25) FIG. 24 illustrates a perspective of two PPVC modules joined at an adjoining long face of a third embodiment

(26) Exemplary, non-limiting embodiments of relevant inventions will now be described with references to the above-mentioned figures.

(27) FIG. 1 to FIG. 7 show a first embodiment of the present application. FIG. 1 illustrates a plan of two facing walls with an assembly 100. The plan of two similar walls arranged side by side along an adjoining long face 102 with a wall breadth 104 of about one hundred millimetres (100 mm), a wall length 106 of about one thousand two hundred millimetres (1,200 mm) and a wall height 108 of about three thousand one hundred and fifty millimetres (3,150 mm) (not shown in FIG. 1). A grating gap 110 of about 20 mm separates the two walls.

(28) The assembly comprises a PPVC (Prefabricated Prefinished Volumetric Construction) connector for coupling a first PPVC module 208 and a second PPVC module 210. The PPVC module 208 or 210 comprises walls, floors and ceilings which are constructed and assembled at an offsite fabrication facility. This PPVC module 208, or 210 is then transported and installed in a building under building works. In the following description, the connector for walls are described in detail; coupling two walls side by side at one face and coupling two walls by stacking one on top of the other at another face.

(29) In this embodiment, the first PPVC 208 has a first wall 112; while the second PPVC 210 has a second wall 114. The first wall 112 or the second wall 114 has six faces each. The top outer surface of the first wall 112 and the second wall 114 is known as a first top face 116 and a second top face 117 respectively. An opposite face of the first top face 116 is a first bottom face 118 which is not shown in FIG. 1. An opposite face of the first adjoining long face 102 is a first opposite long face 120. A first primary side face 122 is a narrow face that meets the first adjoining long face 102 with the first opposite long face 120 and the first top face 116 with the first bottom face 118. Opposite the first primary side face 122 is a first secondary side face 124. The term “opposite” is used to describe a distal side or a far side across a proximal side.

(30) There are three assemblies as seen on the first top face 116 of the first wall 112 comprising a first assembly 126, a second assembly 128 and a third assembly 129. The second assembly 128 is interposed between the first assembly 126 and the third assembly 129. Each assembly 126,128,129 comprises an at least one anchor and a restrictor 134. Further details of each assembly 126,128,129 will be described subsequently. The restrictor 134 is also known as a restrainer or a frame.

(31) A first anchor 130 is secured to the first wall 112 whilst a second anchor 132 is secured to the second wall 114. The restrictor 134 encloses the first anchor 130 and the second anchor 132 in other words, the restrictor 134 brings the two anchors 130,132 together which further holds the two walls 112,114 together.

(32) The first assembly 126 proximal to the first primary side face 122 has a first assembly-to-side distance 136 of two hundred millimetres (200 mm). The first assembly-to-side distance 136 is measured from the first primary side face 122 to a centre of the first assembly 126 proximal to the first primary side face 122 or from the first secondary side face 124 to a centre of the third assembly 129 proximal to the first secondary side face 124. A first-to-second assembly distance 138 is four hundred millimetres (400 mm) as measured from the centre of the first assembly 126 to the centre of the second assembly 128.

(33) The first wall 112 has three indentations 140,142,144 on the adjoining long face 102 which is clearly shown in FIG. 4. A first indentation 140 is proximal to the first primary side face 122. A second indentation 142 is at the centre of the first wall 112. A third indentation 144 is proximal to the first secondary side face 124 of the first wall 112. The first indentation 140 has an indentation depth 148 of fifty millimetres (50 mm) and an indentation breadth 146 of two hundred millimetres (200 mm). The first indentation 140 and the third indentation 144 have similar dimensions. The second indentation 142 has an indentation depth 148 of seventy-five millimetres (75 mm) and an indentation breadth 146 of two hundred millimetres (200 mm). Notably, the second indentation 142 has a deeper indentation i.e. deeper into the wall.

(34) The first assembly 126, the second assembly 128 and the third assembly 129 as mentioned comprises the first anchor 130, the second anchor 132 and the restrictor 134. In the case of the first assembly 126, the first anchor 130 is a C-shaped anchor which is known as C-channel 150 whilst the first anchor 130 of the second assembly 128 is a shear bar 135 embedded in the first wall 112 in an erected position exposing a top section at the first top face 116. There are two shear bars 135 embedded in each second indentation 142 of each wall 112,114. The anchor is used to describe a device being secured to a fixed structure such as the wall.

(35) The restrictor 134 of the first assembly 126 also has a C-shaped profile which is known as the lipped C-channel 152 is smaller in size compare to the anchor 130,132 or the C-channels 150. The restrictor 134 of the second assembly 128 has a square profile with four rounded corners circumscribing the two first anchors 130 and the two second anchors 132. The restrictor 134 used in the second assembly 128 is also known as a roof slab connector 206. The restrictor 134 is used to describe a connector that connects or binds more than one anchor 130,132 together.

(36) Noting in the first assembly 126 there are black markings. The black markings denote perforations along the first anchors 130 and the second anchors 132 specifically for the first assembly 126 which are not shown in FIG. 1. From the plan, the first anchors 130 and the second anchors 132 have perforations at two flanks. The restrictor 134 in the first assembly 126 has perforations at a long side and two short sides. The two short sides flanking from the long side. The black markings or the perforation has an outer diameter of twenty millimetres (20 mm).

(37) FIG. 2 illustrates a plan and a perspective of the first assembly 126 for coupling the two facing walls. The first assembly 126 comprises the C-channel 150 (anchor 130) and the lipped C-channel 152 (restrictor 134). The C-channel 150 is also known as CC1 and the lipped C-channel 152 is also known as CC2. The walls are not shown in FIG. 2.

(38) The C-channel 150 comprises a base portion 154, a right portion 156 and a left portion 158. The right portion 156 and the left portion 158 flanking on each end of the base portion 154. The right portion 156 and the left portion 158 further extends over the base portion 154 forming an overhanging extension 166 to form an open portion 160. Interposed between the open portions 160 of the two C-channel 150 is a corrugated pipe 178. The corrugated pipe has a pipe diameter 180 of fifty millimetres (50 mm). Inserted in the corrugated pipe 178 at the right open portion 160 is a dowel bar 182 as shown by a shaded circle.

(39) The base portion 154 has a base breadth 162 of two hundred millimetres (200 mm). The right portion 156 and the left portion 158 has a side portion depth 164 of fifty millimetres (50 mm). The overhanging extension length 168 over the base portion 154 measures fifty millimetres (50 mm) on each side. A C-channel thickness 170 measures four millimetres (04 mm).

(40) The restrictor 134 of FIG. 2 is formed by having the two lipped C-channel 152 joined together at a middle section by a rebar 172 as shown in FIG. 2. The lipped C-channel 152 also has a similar profile to the C-channel 150 but smaller in size as seen from the plan. Three rebar 172 are used to join the two lipped C-channel 152 specifically along a lipped C-channel length 174 of the lipped C-channel 152. The lipped C-channel length 184 measures three thousand one hundred and fifty millimetres (3,150 mm) which is similar to the wall height 108. Each rebar has a rebar length 174 of seventy-two millimetres (72 mm) with a rebar diameter 176 of six millimetres (06 mm).

(41) In the perspective of the first assembly 127 of FIG. 2, the three rebar 172 are not seen. The three rebar 172 are positioned along the lipped C-channel length 184 specifically at one thousand and fifty millimetres (1,050 mm) interval between each rebar 172. A partial view of the perforations is seen on the overhanging extensions 166 of the C-channel 150. A partial view of the perforations is also seen on the lipped C-channel 152.

(42) FIG. 3 illustrates a perspective of the C-channel 150 and the lipped C-channel 152. The C-channel 150 is shown on the left hand side and the lipped C-channel 152 is shown on the right hand side.

(43) The C-channel 150 having the right portion 156 and the left portion 158 flank on the two edges of the base portion 154. Concentric holes 186 are formed on the overhanging extensions 166 on the right portion 156 and the left portion 158. The diameter of each concentric hole 186 is twenty millimetres (20 mm). There are nine concentric holes 186 which are equally distributed along a C-channel extension length 188 of the overhanging extension 166. A concentric hole gap 190 between two concentric holes 186 is three hundred and fifty millimetres (350 mm).

(44) The lipped C-channel 152 comprises a lipped base portion 192, a lipped right portion 194, a lipped left portion 196 and a lipped overhanging portion 198. Similar to the C-channel 150, the lipped C-channel 152 has a similar profile but smaller. The lipped base portion 192 measures eighty millimetres (80 mm). The lipped right portion 194 and the lipped left portion 196 measures forty millimetres (40 mm) each. The lipped overhanging portion 198 measures fourteen millimetres (14 mm). The lipped C-channel has a lipped C-channel thickness of four millimetres (04 mm). There are nine concentric holes 186 each on the lipped right portion 194, the lipped left portion 196 and the lipped base portion 192. The concentric holes 186 are equally spaced along a length of the lipped C-channel 152.

(45) The C-channel extension length 188, the lipped C-channel length 184 and the wall height 108 all has the same measurement of three thousand one hundred and fifty millimetres (3,150 mm). The concentric holes 186 that are on the C-channel 150 and the lipped C-channel are representations. There are more than nine concentric holes 186 in reality.

(46) FIG. 4 illustrates a perspective of the first adjoining long face 102 of a first wall 112 having five indentations. The first indentation 140, the third indentation 144 and a fifth indentation 204 has a C-channel 150 embedded therein. The first indentation 140, the third indentation 144 and the fifth indentation 204 extends along the height of the first wall 112 which has a wall height 108 measuring three thousand one hundred and fifty millimetres (3,150 mm). A corrugated pipe 178 is joined to the C-channel 150 lengthwise specifically at the centre of the base portion 154 in the first indentation 140, the third indentation 144 and the fifth indentation 204. The length of each corrugated pipe 178 is eight hundred millimetres (800 mm).

(47) The first indentation 140 is positioned at a first assembly-to-side distance 136 of two hundred millimetres (200 mm) from the first side face 122. This same measurement applies from the second side face 124 to the fifth indentation 204.

(48) The first-to-second assembly distance 138 of four hundred millimetres (400 mm) applies between indentations; the first indentation 140 to the second indentation 142, from the second indentation 142 to the third indentation 144, from the third indentation 144 to the fourth indentation 202 and from the fourth indentation 202 to the fifth indentation 204. The wall length 106 measures two thousand millimetres (2,000 mm) in total. The second indentation 142 and the fourth indentation 202 has two vertical shear bars 135 embedded therein. The second indentation 142 and the fourth indentation 202 has an indentation depth 148 of 75 mm which means 75 mm of the shear bars 135 are exposed.

(49) FIG. 5 illustrates a perspective of two facing walls 112,114 with the assemblies 126,128. Two similar walls are positioned in which the adjoining long faces 102 are facing each other. The first indentation 140 of the first wall 112 meets the fifth indentation 204 of the second wall 114. The second indentation 142 of the first wall 112 meets the fourth indentation 202 of the second wall 114. The third indentation 144 of the first wall 112 meets the third indentation 144 of the second wall 114. The fourth indentation 202 of the first wall 112 meets the second indentation 142 of the second wall 114. The fifth indentation 204 of the first wall 112 meets the first indentation 140 of the second wall 114.

(50) Two lipped C-channel 152 are inserted into the two adjoining C-channels 150 in the first indentation 140, the third indentation 144 and the fifth indentation 204. The lipped C-channel 152 is positioned orthogonally with respect to the C-channel 150 before inserting in the two C-channels 150. The overhanging extension 166 of the C-channel 150 and the lipped overhanging portion 198 of the lipped C-channel 152 are communicatively engaged. Over at the second indentation 142 and the fourth indentation 202 a roof slab connector 206 is communicatively engaged with the two shear bars 135 of the first wall 112 and the two shear bars 135 of the second wall 114.

(51) The lipped C-channel 152 is protruded over the first top face 116 and the second top face 117 of the two walls 112,114. The protrusion measures two hundred and forty-five millimetres (245 mm) measured from the top face 116,117 to the apex of the lipped C-channel 152.

(52) FIG. 6 illustrates a side view of two walls 112,114 stack on each other specifically the second wall 114 is on top of the first wall 112. The lipped C-channel 152 protruded from the top face 116 of the first wall 112 extends into the bottom of the C-channel 150 of the second wall 114. The lipped C-channels 152 of the second wall 114 protrudes out from the second top face 117 of the second wall 114. The corrugated pipes 178 are in between the C-channels 150. The dowel bars 182 are within the corrugated pipes 178 which extends from the second top face 117 of the second wall 114 to the end of the corrugated pipes 178 inside the first wall 112.

(53) FIG. 7 illustrates a perspective of two PPVC modules 208 joined at an adjoining long face 102. The first PPVC module 208 is a terminating PPVC module which has PPVC connectors only on one side thereof. The second PPVC module 210 has PPVC connectors on the two adjoining long faces 102 thereof. The PPVC connectors comprise first, the C-channel 150 acts as the anchor and the lipped C-channel 152 which acts as the coupler; and second the shear bars 135 which act as the anchor and the roof slab connector 206 acts as the coupler.

(54) The second PPVC module 210 has an exposed adjoining long face 102 revealing the eight long indentations that extends from the top face 116 to the bottom face 118 thereof. The exposed adjoining long face 102 corresponds to the first wall 112 as shown in FIG. 4. Each of the eight indentations have a pair of C-channels 150 embedded. The two C-channels 150 are embedded within and along the indentation and facing each other.

(55) The roof slab connector 206 is a bar formed into a square with rounded corners. The first PPVC module 208 and the second PPVC module 210 are coupled by placing the roof slab connector 206 into the two exposed shear bars 135 of the first PPVC module 208 and into the remaining two shear bars 135 of the second PPVC module 210. The roof slab connector 206 circumscribing the four shear bars 135. There are six short indentations on the exposed adjoining long face 102. Each short indentation is interposed between two long indentations. Each short indentation has two shear bars 135 embedded exposing the top section of the shear bars 135 for receiving the roof slab connector 206. Alternatively, the roof slab connector 206 can be a sheet of solid metal with four holes bored in four positions which correspond to the positions of the shear bars 135 embedded in the walls of the PPVC modules 208,210.

(56) The placement of the PPVC modules 208, 210 is with respect to a three-dimensional coordinate system 212 (also known as artesian coordinate system). The second PPVC module 210 is positioned on the adjoining long face 102 of the first PPVC module 208 having he PPVC connectors 126, 128, 129 specifically in the x-axis direction. The PPVC modules 208, 210 can also be placed on top of the first PPVC module 208 and the second PPVC module 210 in the z-axis direction as shown in FIG. 7. More PPVC modules can also be placed in the x-axis direction provided there are PPVC connectors available in the PPVC module in that direction. Both x-axis and y-axis represent lateral directions of the PPVC modules 208, 210, whilst the z-axis represents a vertical direction of the PPVC modules 208, 210. If using a cylindrical coordinate system, both x-axis and y-axis are radial directions, whilst z-axis is known as cylindrical or longitudinal axis, such as longitudinal axes of the PPVC connectors or assemblies 126, 128, 129.

(57) Functionally, the PPVC connectors 126, 128, 129 provides a coupling means to couple two walls together. The PPVC connector 126, 128, 129 can comprise the first assembly 126 and the second assembly 128. Terms of PPVC connector, connector and the assembly 126,128, 129 are coupling means which are analogous, sometimes used interchangeably.

(58) The two walls 112,114 which is part of the PPVC module 208 are made of concrete which is a composite material composed of fine and coarse aggregate bonded together with a fluid cement that hardens over a time period. The aggregate is a broad category of coarse to medium grained particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geo-synthetic aggregates.

(59) The first assembly 126 comprises a C-channel 150 and a lipped C-channel 152. A first C-channel 150 is embedded in the first wall 112 and a second C-channel 150 is embedded in the second wall 114. The two C-channels 150 embedded in the two walls provide the anchor which extends from the top face 116 to the bottom face 118 of the wall.

(60) The lipped C-channel comprises the restrictor 134 which provides a coupling of the two walls together by securing the two C-channels 150. The lipped C-channel is communicatively engaged with the two C-channels 150 by sliding downwards from the top face 116.

(61) The C-channel 150 and the lipped C-channel 152 are made of structural steel. Structural steel is used and can be described as ‘S275J2’ or ‘S355K2W’. In these examples, ‘S’ denotes structural rather than engineering steel; 275 or 355 denotes the yield strength in Newton per square millimetre or the equivalent mega Pascals; J2 or K2 denotes the materials toughness by reference to Charpy impact test values; and the ‘W’ denotes weathering steel. Further letters can be used to designate fine grain steel (‘N’ or ‘NL’); quenched and tempered steel (‘Q’ or ‘QL’); and thermos-mechanically rolled steel (‘M’ or ‘ML’). Alternatively, steel used for building construction in the United States use standard alloys identified and specified by ASTM (American Section of the International Association for Testing Materials) International.

(62) In practice, a first PPVC module 208 comprising at least one wall is installed on a levelled plane. The levelled plane can be structural pillars which are supporting the first PPVC module 208 from beneath. The structural pillars have protruding rebar that provides the installation of the first PPVC module 208 thereon. Subsequent PPVC modules 208 are installed either next to the first PPVC module 208 or on top of it. Hence, the lipped C-channel is inserted from the top face of the wall through the two C-channels 150. As the rebar from the structural pillars extends into the bottom of the C-channels 150 of the first PPVC module 208, the lipped C-channel 152 inserted via the top face 116 will have exposed partial section extending from the top face 116. The exposed partial section of the lipped C-channel 152 is to provide a guide for the insertion of another C-channel 150 of another PPVC module 208 stacked on top.

(63) The concentric holes 186 on the overhanging extensions 166 of the C-channel 150 provides a channel for the grout to flow freely in a cavity. The cavity refers to a hollow space in the C-channel 150. The grout is to filled the cavity. The concentric holes 186 on the lipped base portion 192, the lipped right portion 194 and the lipped left portion 196 provides the free flowing of the grout in the cavity as well as in the grating gap 110. The grating gap 110 is formed with the two walls are in close proximity but not contacting so as to allow the grout to bind the two walls together and also provides an expansion gap in hot weather. As the grout is of a certain viscosity, the concentric hole gap 190 between each concentric hole 186 is kept at 50 mm to ensure complete immersion of the grout without any air pocket formed.

(64) The overhanging extensions 166 of the C-channel 150 and the lipped overhanging portion 198 of the lipped C-channel 152 provide a gap and a guide when inserting the lipped C-channel 152. The gap can be marginally proximal to each other (referring to the two C-channels 150 and the lipped C-channel 152). To ensure a fixed gap between two lipped C-channels 152 and to facilitate easy installation, the rebar 172 is used to join the two lipped C-channels 152 specifically at the lipped base portions 192. The rebar 172 can be chosen to be longer to have the lipped C-channel 152 proximal to the C-channels 150 or shorter to be spaced further apart.

(65) The corrugated pipe 178 is joined to the inner surface specifically at the centre of the base portion 154 of the C-channel 150. The corrugated pipe 178 provides a sleeve and a guide for the insertion of the dowel bar 182. The dowel bar 182 provides added structural strength. The corrugated pipe 178 extends partially along the C-channel 150 for allowing a lower section end of the dowel bar 182 to be covered by the grout. An upper section of the dowel bar 182 is in the corrugated pipe 178. Grout also flows into the corrugated pipe 178 engulfing the dowel bar 182. The corrugated pipe 178 having the uneven surface provides additional bonding of the grout thereon.

(66) The second assembly 128 provides an alternative to the coupling of the two walls. Two shear bars 135 are embedded into the wall specifically at the adjoining long face 102 of each wall. Only a partial top end of the shear bars 135 are exposed to provide the restrictor 134 to attach itself to the two shear bars 135. The indentation depth 148 of the second assembly extends partially below the top face 116 of the wall. The indentation depth 148 provides a fixed distance on how far the restrictor 134 can travel. The second assembly can provide some sort of locking mechanism to secure the two walls prior to installing the lipped C-channels 152 into the C-channels 150 for the first assembly 126.

(67) FIG. 8 to FIG. 15 show a second embodiment of the present application. Similar to FIG. 1, FIG. 8 illustrates a plan of two facing walls with an assembly 100. The only different is that the first assembly 126, the second assembly 128 and the third assembly 129 are replaced by a fourth assembly 214 respectively. Each assembly 214 comprises an at least one anchor and a frame or restrictor 134. Similarly, the frame 134 brings the two anchors 130, 132 together which further holds the two walls 112, 114 in a face-to-face configuration. The first assembly 126 and the second assembly 128 are separated by a space or gap from fifty to one thousand and five hundred millimetres (i.e. 50-1500 mm), one hundred to one thousand and four hundred millimetres (i.e. 100-1400 mm), one hundred and fifty to one thousand and three hundred (i.e. 150-1300 mm), two hundred to one thousand and two hundred millimetres (i.e. 200-1200 mm), two hundred and fifty to one thousand and one hundred millimetres (i.e. 250-1100 mm), or preferably three hundred to one thousand millimetres (i.e. 300-1000 mm).

(68) As shown in FIG. 8, the anchors 130, 132 of the fourth assembly 214 are identical; and each of the anchors 130, 132 has a rectangular shape with a length from sixty to one hundred millimetres (60-100 mm) and a width of from forty to sixth millimetres (40-60 mm). The first anchor 130 and the second anchor 132 have a first opening 220 and a second opening 222 respectively. The two openings 220, 222 face each other and are separated by the grating gap 110. The openings 220, 222 have a same size from twelve to twenty-five millimetres (12-25 mm). The frame 134 of the fourth assembly 214 comprises a dumbbell coupler (also known as shaft, rod, rebar or tie bar) 224 and four elongated poles 226, 228, 230 and 232. The dumbbell coupler 224 has a diameter from ten to sixteen millimetres (10-16 mm), a width from ninety to one hundred and twenty millimetres (90-120 mm) and a length equivalent to building storey height typically from two thousand, nine hundred and fifty to three thousand, one hundred and fifty millimetres (2950-3150 mm). The four elongated poles 226, 228, 230 and 232 are identical and thus have a same diameter from sixteen to thirty-two millimetres (16-32 mm) and a same length from ninety to one hundred and twenty millimetres (90-120 mm). The two elongated poles 226, 228 of the anchor 130 have a distance from ten to one hundred and fifty millimetres (10-150 mm), twenty to one hundred and forty millimetres (20-140 mm), thirty to one hundred and thirty millimetres (30-130 mm), forty to one hundred and twenty millimetres (40-120 mm), forty-five to one hundred and ten millimetres (45-110 mm), or preferably fifty to one hundred millimetres (50-100 mm).

(69) In the fourth assembly 214, the dumbbell coupler or shaft 224 has a first end 234 and a second end 236 (shown in FIG. 9). The first elongated pole 226, the second elongated pole 228 and a first portion 238 of the dumbbell coupler 224 including the first end 234 are located inside the enclosure of the first anchor 130; while the third elongated pole 230, the fourth elongated pole 234 and a second portion 240 of the dumbbell coupler 224 including the second end 236 are located inside the enclosure of the second anchor 132. The first elongated pole 226 and second element 228 are connected to the two sides of the first portion 238 respectively. Similarly, the third elongated pole 230 and the fourth elongated pole 232 are also connected to the two side of the second portion 240 respectively. As a result, the frame 134 brings the two anchors 130, 132 together and further holds the two walls 112, 114 in a face-to-face configuration.

(70) In the fourth assembly 214, for installing the frame 134 with the two anchors 130, 132, the size of the two openings 220, 222 is larger than the diameter of the dumbbell coupler 224 but smaller than the farthest distance between the first elongated pole 226 and the second elongated pole 228, i.e. sum of the diameter of the first elongated pole 226, the diameter of the dumbbell coupler 224 and the diameter of the second elongated pole 228. In addition, the sum calculated above is smaller than the length of the first anchor (60-70 mm) for being accommodated into the first anchor 130. As a result, the frame 134 couples the two anchors 130, 132 together such that the PPVC connector couples the first wall 112 and the second wall 114 securely as a whole.

(71) Similar to FIG. 2, FIG. 9 illustrates a plan of the assembly for coupling the two facing walls for the second embodiment. The fourth assembly 214 comprises two identical C-channels 150 as the anchors 130, 132. FIG. 10 illustrates a perspective of the assembly for the second embodiment. In particular, the first elongated pole 226 and the third elongated pole 230 protrude from a top side 131 of the first anchor 130 or the second anchor 132 in a height direction. Meanwhile, the second elongated pole 228 and the fourth elongated pole 232 also protrude from a bottom side 133 of the first anchor 130 or the second anchor 132 (not shown). The protruding portions of the elongated poles 226, 230 are used for directing and fixing another PPVC connector stacked upwards by extending the protruding portions into the upwardly stacked PPVC connector. Similarly, the protruding portions of the elongated poles 228, 232 are used for directing and fixing another PPVC connector stacked downwards by extending the protruding portions into the downwardly stacked PPVC connector.

(72) FIG. 11 illustrates an exploded view of a C-channel and a dumbbell coupler of the second embodiment. The frame 134 comprises a first shaft 278, a second shaft 280 and a third shaft 282 connecting the elongated poles 226, 228, 230, 232. The shafts 278, 280, 282 are placed in a parallel configuration. In particular, the first shaft 278 is positioned around a first top end 227 of the second elongated pole 228 or the fourth elongated pole 232. The first shaft 278 and the second shaft 280 are separated by a first interval 282; and the second shaft 280 and the third shaft 282 are also separated by a second interval 284. The first interval 282 and the second interval 284 may have a same value or different values according to specific requirements. For example, the intervals 284, 286 have a same value of two hundred millimetres to two thousand millimetres (200-2000 mm), three hundred millimetres to one thousand and nine hundred millimetres (300-1900 mm), three hundred and fifty millimetres to one thousand and eight hundred millimetres (350-1800 mm), four hundred millimetres to one thousand and seven hundred millimetres (400-1700 mm), four hundred and fifty millimetres to one thousand and six hundred millimetres (450-1600 mm), or five hundred millimetres to one thousand and five hundred millimetres (500-1500 mm). Preferably, the intervals 284, 286 have a same value of five hundred millimetres to one thousand millimetres (500-1000 mm).

(73) As shown in FIG. 11, the upwardly protruding portion of the first elongated pole 226 or the third elongated pole 230 has a first length 288 as a first tension lap length of reinforcement (typically forty (45) to fifty (50) times larger than the diameter of elongated pole or rebar 226, 230) from the first top end 227 to a second top end 231 of the first elongated pole 226 or the third elongated pole 230. The downwardly protruding portion of the second elongated pole 228 or the fourth elongated pole 232 has a second length 290 as a second tension lap length of reinforcement (typically forty (45) to fifty (50) times larger than the diameter of the elongated pole or rebar 228, 232) from a first bottom end 229 of the first elongated pole 226 or the third elongated pole 230 to a second bottom end 233 of the second elongated pole 228 or the fourth elongated pole 232. If all the elongated poles 226, 228, 230, 232 have a same length equal to the tension lap length 288, 290 of reinforcement, the first length 288 and the second length 290 also have a same length.

(74) Similar to the C-channel 150, FIG. 11 shows a plurality of concentric holes 186 in two parallel lines formed on the circular channel 242. There are concentric holes 186 having a same diameter of twenty to thirty millimetres (20-30 mm). The concentric holes 186 are equally distributed about fifty to one hundred millimetres (50-100 mm) from center to center; and the concentric hole gap 190 between two adjacent concentric holes 186 is about fifty to one hundred millimetres (50-100 mm). The concentric holes 186 on the circular channel 242 in FIG. 9 are representation only.

(75) Similar to FIG. 4, FIG. 12 illustrates a perspective of an inner face of a first wall having three indentations of a second embodiment, i.e. the first indentation 140, the third indentation 144 and the fifth indentation 204. Each of the indentations 140, 144, 204 has a C-channel 150 embedded therein. Each the indentations 140, 144, 204 extends along the first wall 112 in a height direction; and thus has a length equal to a wall height 108 of three thousand, one hundred and fifty millimetres (3150 mm) typically. The frame 134 is joined to the C-channel 150 in each of the indentations 140, 144, 204, comparing the first elongated pole 226 and the second elongated pole 228. As discussed in FIG. 12, the upwardly protruding portion in each of the indentations 140, 144, 204 has a length of fifty to one hundred millimetres (50-100 mm). The downwardly protruding portion is not shown in FIG. 12.

(76) The other features are the same as disclosed in the FIG. 4. Particularly, the frame 134 also comprises three shafts 278, 280, 282 that connect the elongated poles 226, 228 together and also holds the elongated poles 226, 228 parallel. The shafts are also parallel to each other, but orthogonal to the elongated poles 226, 228. Two adjacent dumbbell couplers are separated apart by a distance of three hundred millimetres to one thousand millimetres (300-1000 mm).

(77) Similar to FIG. 5, FIG. 13 illustrates a perspective of two facing walls 112, 114 with the assembly 126, 128 and 129 of a second embodiment. Two similar or identical walls 112, 114 are positioned in which the adjoining long faces 102 are facing each other. Hold in the position, the first indentation 140 of the first wall 112 meets the fifth indentation 204 of the second wall 114. The second indentation 142 of the first wall 112 meets the fourth indentation 202 of the second wall 114. The third indentation 144 of the first wall 112 meets the third indentation 144 of the second wall 114. The fourth indentation 202 of the first wall 112 meets the second indentation 142 of the second wall 114. The fifth indentation 204 of the first wall 112 meets the first indentation 140 of the second wall 114.

(78) The frame 134 is inserted into the two adjoining C-channels 150 in the indentations 140, 144, 204 of the first wall 112 and the indentation 204, 144, 140 of the second wall 114, respectively. The frame 134 is positioned orthogonally with respect to the C-channel 150 before inserting in the two C-channels 150 of the first assembly 126, the second assembly 128 and the third assembly 129, respectively. The upwardly protruding portion is also shown of the first elongated pole 226 and the third elongated pole 230. The downwardly protruding portion are not shown in FIG. 13.

(79) Similar to FIG. 6, FIG. 14 illustrates a side view of two walls stacked on top of each other of a second embodiment. Two similar to identical walls are stacked, i.e. the second wall 114 is stacked on top of the first wall 112. Hold in the position, the first indentation 140 of the first wall 112 meets the first indentation 140 of the second wall 114 for forming an elongated indentation throughout the first wall 112 and the second 114 in height. The frame 134 protrudes from the top face 116 of the first wall 112 extends into the bottom of the C-channel 150 of the second wall 114. The extension of the frame 134 of the first wall 112 into the C-channel 150 of the second wall 114 is called an overlapping zone 246 of the first indentations 140. The frame 134 of the second wall 114 protrudes out from the second top face 117 of the second wall 114. The structure for the third indentation 144 or the fifth indentations 204 of the first wall 112 and the second wall 114 are the same as that of the first indentation 140 describe above. In addition, a third wall 244 (not shown) similar or identical to the first wall 122 or the second wall 124 may be also installed by being stacked on the second wall 114 in the same way. Each of the indentations 140, 144 and 204 has the overlapping zone 246 in the third wall 244.

(80) As shown in FIG. 14, the first wall 112 comprises a bottom portion 248 and a top portion 249. The bottom portion 248 is embedded underground below a floor level 250. The bottom portion 248 has a height equal to the tension lap length 288, 290 of connector dumbbell rebar (typically eight hundred millimetres (800 mm) for sixteen millimetres (16 mm) diameter rebar) below the floor level 250. As a result, the first wall 112 lays a solid foundation and thus can support a PPVC module for a building, especially for a high-rise building.

(81) Similar to FIG. 7, FIG. 15 illustrates a perspective of two PPVC modules 208 joined at an adjoining long face 102 of a second embodiment. The first PPVC module 208 is a terminating PPVC module which has PPVC connectors only on one side thereof. The second PPVC module 210 has PPVC connectors on the two adjoining long faces 102 thereof. The PPVC connectors comprise multiple C-channels 150 acting as the anchors and multiple frames 134 acting as the couplers. The other information of the PPVC modules 208 is as explained in FIG. 7.

(82) As described above, the frame 134 is protruded over the first top face 116 and the second top face 117 of the two walls 112,114. A third PPVC module 276 is attached onto the first PPVC module 208 vertically. In other words, the third PPVC module 276 is stacked onto the top of the first PPVC module 208. The protrusions of the frame 134 further extends into the third PPVC module 208 for temporarily holding the first PPVC module 208 in position, then a filler is filled and cured for joining the first PPVC module 208, the second PPCV module 210 and the third PPVC module 276 by confinement effect.

(83) FIG. 16 to FIG. 24 show a third embodiment of the present application. FIG. 16 illustrates a plan of two facing walls with an assembly of a third embodiment, similar to the fourth assembly 214, the fifth assembly 216 of the third embodiment comprises the first anchor 130, the second anchor 132 and the frame 134 respectively. In the fifth assembly 216, each of the anchors 130, 132 is a circular channel 242 having a rectangular shape with side of 150 mm. Other features in the third embodiment remain the same as those in the second embodiment.

(84) FIG. 17 illustrates a plan of the assembly for coupling the two facing walls of a third embodiment. In contrast to the fourth assembly 214, the fifth assembly 216 comprises two identical circular channels 242 as the anchors 130, 132. FIG. 18 illustrates a perspective of the assembly for the second embodiment. Similar to FIG. 10, the first elongated pole 226 and the third elongated pole 230 protrude from the first anchor 130 and the second anchor 132 respectively in a height direction. Meanwhile, the second elongated pole 228 and the fourth elongated pole 232 have substantially the same height as the first anchor 130 and the second anchor 132. FIG. 19 illustrates an exploded view of a C-channel and a dumbbell coupler of the third embodiment. All the features are the same as those in the FIG. 11, except that the first anchor 130 has a circular channel 242.

(85) Similar to FIG. 12, FIG. 20 illustrates a perspective of an inner face of a first wall having three indentations of a third embodiment, i.e. the first indentation 140, the third indentation 144 and the fifth indentation 204. Each of the indentations 140, 144, 204 has a circular channel 242 embedded therein. The other features are the same as those in the FIG. 12. The frame 134 comprising four elongated poles 226, 228, 230, 232 and the three shafts 278, 280, 282 are not shown.

(86) FIG. 21 illustrates a perspective of two facing walls with the assembly of a third embodiment. Similar to the FIG. 13, the frame 134 is also inserted into two adjoining circular channels 242 in the indentations 140, 144, 204 of the first wall 112 and the second wall 114. The frame 134 is positioned orthogonally with respect to the circular channels 242 before inserting in the two circular channels 242 of the first assembly 126, the second assembly 128 and the third assembly 129, respectively. FIG. 22 illustrates a side view of two facing walls with the assembly of a third embodiment. The upwardly protruding portion is also shown of the first elongated pole 226 and the third elongated pole 230. The downwardly protruding portion are not shown in FIG. 21 and FIG. 22.

(87) The circular channel 242, the elongated poles 226, 228, 230 and 232 and the dumbbell coupler 224 of the frame 134 are made of a same or similar material of the C-channel 150, such as the structural steel discussed above. A filler such as non-shrink grout or cement is then filled into empty space in the first indentations 140, the third indentations 144 and the fifth indentations 204, where the first anchor 130 and the second anchor 132 form an enclosure with the grating gap. The enclosure provides confine effect when the grating gap is filled and then sealed with the filler after curing. Inside the enclosure, the frame 134 are surrounded by the filler. As a result, the frame 134 and the enclosure of the anchors 132, 134 provide lateral deformation forces in a loading stage that comprises an initial loading stage and a subsequent loading stage during the curing process. In the initial loading stage, the Poisson's ratio of filler is smaller than that of the frame 134 such that a first lateral interactional force 252 is generated by the frame 134 for squeezing the filler. The first lateral interaction force 252 leads to a stable and strong connection between the frame 134 and the filler. In contrast, when the stress of the anchors 130, 132 exceeds a proportional limit, the Poisson's ratio of the filler is greater than that of the anchors 130, 132, such that a second lateral interactional force 254 is generated by the filler for squeezing the anchors 130, 132 in the subsequent loading stage. The second lateral interaction force 254 also leads to a stable and strong connection between the filler and the anchors 130, 132. Therefore, the anchors 130, 132, the filler and the frame 134 are connected together firmly which further combine the two PPVC modules into a monolithic assembly after the loading stage.

(88) The confinement effect is applicable for both of the first embodiment and the second embodiment of the present application, because each of the anchors 130, 132 and the lipped C-channel 152 in the first embodiment or the frame 134 in the second embodiment has a rigid nature. Therefore, continuous reinforced structure of concrete is formed in-between the PPVC modules. In addition, the frame 134 in the second embodiment has such a simple structure that the frame 134 would not cause any disturbance of concrete continuity.

(89) An apparatus 256 is adopted for making the frame 134 of a second embodiment or the third embodiment. The apparatus 256 comprises a first holder 258 and second holder 260 that are separated apart by a first distance 262. The first holder 258 comprises a first recess 264 and a second recess 266 that are separated apart by a second distance 272. Similarly, the second holder 260 comprises a third recess 268 and a fourth recess 270 that are also separated apart by the second distance 272. Two ends of the first elongated pole 226 are respectively placed on the first recess 264 and the third recess 268 on the opposite. Similarly, two ends of the second elongated pole 228 are also respectively placed on the second recess 266 and the fourth recess 270 on the opposite.

(90) The recesses 264, 266, 268 and 270 have a same size suitable for holding the first elongated pole 226 and the second elongated pole 228. Several dumbbell couplers 224 tie shafts having a diameter of ten to sixteen millimetres (10-16 mm) and a spacing of five hundred to one thousand millimetres (500-1000 mm) with the elongated poles 226, 228. Particularly, the elongated poles 226, 228 has a same diameter ranging from sixteen millimetres (16 mm) to thirty-two millimetres (32 mm). The dumbbell couplers have a same diameter of ten to sixteen millimetres (10-16 mm) The dumbbell couplers are parallel to each other and separated by a third distance of fifty to one hundred millimetres (50-100 mm) between two adjacent dumbbell couplers. In this way, a half of the frame 134 is made.

(91) The PPVC connector provides a method of making which comprises firstly, embedding the first C-channel 150 or circular channel 242 to the first wall 112 of the first PPVC module 208; secondly, embedding the second C-channel 150 or circular channel 242 to the second wall 114 of the second PPVC module 210; and finally coupling the first C-channel 150 and the second C-channel 150 by a lipped C-channel 152 in the first embodiment or a frame 134 in the second embodiment in order to prevent detachment between the first PPVC module 208 and the second PPVC module 210. The C-channels 150 or the circular channels 242 are pre-casted in a mould together with concrete.

(92) A method of assembling the two PPVC modules 208, 210 in particular the two walls which has the PPVC connector. The method comprises bringing the first wall 112 of the first PPVC module 208 and the second wall 114 of the second PPVC module 210 in proximity which form the grating gap 110. To secure the two walls, lipped C-channels 152 in the first embodiment or frames 134 are first placed in the first indentation 140, third indentation 144 and the fifth indentations 204. Followed by placing the roof slab connectors 206 at the second indentation 142 and the fourth indentation 202. Dowel bars 182 are inserted into the corrugated pipes 178. Non-shrink grout or concrete is then poured into the cavities till fully filled.

(93) A method of making the frame 134 in the second embodiment is also disclosed. The method comprises a first step of placing a first elongated pole 226 into the first recess 264 of the first holder 258 and the third recess 268 of the second holder 260; and a second step of placing a second elongated pole 228 into the second recess 266 of the first holder 258 and the fourth recess 270 of the second holder 260. The first elongated pole 226 and the second elongated pole 228 are parallel to each other. To securely connect the elongated poles 226, 228 together, a third step of the method is welding the dumbbell couplers to the elongated poles with a third distance of fifty to one hundred millimetres (50-100 mm) between two adjacent dumbbell couplers. The method further comprises a fourth step of welding a third elongated pole 230 to the dumbbell couplers in such a way that the third elongated pole 230 is opposite to and separated from the first elongated pole 226 by the dumbbell couplers. Finally, the method also comprises a fifth step of welding a fourth elongated pole 232 to the dumbbell couplers in such a way that the fourth elongated pole 232 is opposite to and separated from the first elongated pole 226 by the dumbbell couplers. Overall, the four elongated poles 226, 228, 230 and 232 are made parallel to each other; while the dumbbell couplers are also parallel to each other but orthogonal to the four elongated poles 226, 228, 230 and 232. The fourth step and the fifth step can be conducted either off-site or on-site.

(94) In the application, unless specified otherwise, the terms “comprising”, “comprise”, and grammatical variants thereof, intended to represent “open” or “inclusive” language such that they include recited elements but also permit inclusion of additional, non-explicitly recited elements.

(95) As used herein, the term “about”, in the context of concentrations of components of the formulations, typically means +/−5% of the stated value, more typically +/−4% of the stated value, more typically +/−3% of the stated value, more typically, +/−2% of the stated value, even more typically +/−1% of the stated value, and even more typically +/−0.5% of the stated value.

(96) Throughout this disclosure, certain embodiments may be disclosed in a range format. The description in range format is merely for convenience and brevity and should not be construed as an inflexible limitation on the scope of the disclosed ranges. Accordingly, the description of a range should be considered to have specifically disclosed all the possible sub-ranges as well as individual numerical values within that range. For example, description of a range such as from 1 to 6 should be considered to have specifically disclosed sub-ranges such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6 etc., as well as individual numbers within that range, for example, 1, 2, 3, 4, 5, and 6. This applies regardless of the breadth of the range.

(97) It will be apparent that various other modifications and adaptations of the application will be apparent to the person skilled in the art after reading the foregoing disclosure without departing from the spirit and scope of the application and it is intended that all such modifications and adaptations come within the scope of the appended claims.

REFERENCE NUMERALS

(98) 100 plan of two facing walls with an assembly 102 first adjoining long face 104 wall breadth 106 wall length 108 wall height 110 grating gap 112 first wall 114 second wall 116 first top face 117 second top face 118 first bottom face 120 first opposite long face 122 first primary side face 124 first secondary side face 126 first assembly 127 a perspective of the first assembly 128 second assembly 129 third assembly 130 first anchor 131 top side 132 second anchor 133 bottom side 134 restrictor or frame 135 shear bar 136 first assembly-to-side distance 138 first-to-second assembly distance 140 first indentation 142 second indentation 144 third indentation 146 indentation breadth 148 indentation depth 150 C-channel, CC1 152 lipped C-channel, CC2 154 base portion 156 right portion 158 left portion 160 open portion 162 base breadth 164 side portion depth 166 overhanging extension 168 overhanging extension length 170 C-channel thickness 172 rebar 174 rebar length 176 rebar diameter 178 corrugated pipe 180 pipe diameter 182 dowel bar 184 lipped C-channel length 186 concentric hole 188 C-channel extension length 190 concentric hole gap 192 lipped base portion 194 lipped right portion 196 lipped left portion 198 lipped overhanging portion 200 perspective of the adjoining long face 202 fourth indentation 204 fifth indentation 206 roof slab connector 208 first PPVC module 210 second PPVC module 212 three-dimensional coordinate system 214 fourth assembly; 216 the fifth assembly; 220 first opening of the first anchor; 222 second opening of the second anchor; 224 dumbbell coupler; 226 first elongated pole; 227 first top end 228 second elongated pole; 229 first bottom end 230 third elongated pole; 231 second top end 232 fourth elongated pole; 233 second bottom end 234 first end of the dumbbell coupler; 236 second end of the dumbbell coupler; 238 first portion of the dumbbell coupler; 240 second portion of the dumbbell coupler; 242 circular channel; 244 third wall; 246 overlapping zone; 248 bottom portion; 249 top portion 250 floor level 252 first lateral interactional force 254 second lateral interactional force 256 apparatus 258 first holder 260 second holder 262 first distance 264 first recess 266 second recess 268 third recess 270 fourth recess 272 second distance 274 third distance 276 third PPVC 278 first shaft 280 second shaft 282 third shaft 284 first interval 286 second interval 288 first length; 290 second length