BIM-based modular housing built with thin-wall channel steels

Abstract

A building information modeling (BIM)-based modular housing built with thin-wall channel steel can include columns and transverse beams adopt inward-flanging C-section steel or combined square steel arranged by oppositely buckling symmetric inward-flanging C-section steel. The columns and transverse beams are connected to each other together by base connectors, butting connectors, or crossed connectors. The joint is provided with webs, and can be used as a standard connector due to high strength, thereby realizing an internal-external nesting effect. A positioning groove arranged outside the joint and the inward-flanging C-section steel can be nested together in a concavo-convex manner, and then pressed and fastened by a fastening steel strip, thereby realizing effects of fastening and slippage prevention.

Claims

1. A building information modeling (BIM)-based modular housing built with workpieces made of thin-wall channel steel, the workpieces comprising: a butting connector having at least one C-section member having a base with two bilateral wing plates being coupled to an edge of at least two web members, each bilateral wing plate having an edge with a plurality of locating grooves parallel with the edge, an outside surface of the butting connector having clamping grooves at each end lateral of a corresponding web member; at least two separate inward-flanging C-section members each having a support with two bilateral flanged plates that each have an inwardly bent inward flange and have a plurality of rear pressing members opposite of the inwardly bent inward flange, the at least two inward-flanging C-section members being coupled to opposite ends of the at least one corresponding butting connector by having the base on an inside surface of the support with the two bilateral wing plates on an inside surface of the two bilateral flange plates and with each edge of the two bilateral wing plates within each inward flange so that the plurality of rear pressing members are aligned and pressed into the plurality of locating grooves and so that the inwardly bent inward flange is located within a notch in the edge of the at least two web members; at least two straps bounding an outside of the at least one inward-flanging C-section member, each strap being positioned within a strap recess, such that each strap is lateral to a corresponding clamping groove and web member so as to be bound there around; and a BIM information locating piece on the workpiece, the BIM information locating piece including information with a unique name of the workpiece, a unique spatial location of the workpiece, a shape of the workpiece, and a material of the workpiece, the BIM information locating piece being readable.

2. The BIM-based modular housing of claim 1, further comprising a combined squared butting connector having at least two of the C-section members oppositely positioned relative to the at least two webs, each of the C-section members having the base with two bilateral wing plates being coupled to the edge of each of the at least two web members, each bilateral wing plate having the edge with the plurality of locating grooves parallel with the edge, an outside surface of the butting connector having clamping grooves at each end lateral of a corresponding web member, wherein the two bilateral wing plates of each C-section member is pointed at the two bilateral wing plates of the other C-section member with a gap therebetween so as to form a squared cross-sectional profile from two C-section cross-sectional profiles with the gap separating the two C-section members.

3. The BIM-based modular housing of claim 2, further comprising: at least two inward-flanging C-section members being coupled to each end of the combined squared butting connector by having each base on an inside surface of the corresponding support with the corresponding two bilateral wing plates on the corresponding inside surface of the two bilateral flange plates and with each corresponding edge of the two bilateral wing plates within each corresponding inward flange so that the plurality of rear pressing members of each inward-flanged C-section member are aligned and pressed into the plurality of locating grooves of the corresponding combined squared butting connector and so that two inwardly bent inward flanges of different inward-flanging C-section members are pointing toward each other and located within a single notch in the edge of each of the web members.

4. The BIM-based modular housing of claim 3, further comprising two inwardly bent inward flanges pointing toward each other being located within a single notch in the edge of the at least two web members, wherein each web member includes at least two notches, each notch being formed in a side of the edge opposite of the other notch.

5. The BIM-based modular housing of claim 3, wherein the at least two straps bound an outside of the combined squared butting connector, each strap being positioned within a strap recess, such that each strap is lateral to a corresponding clamping groove and web member so as to be bound there around.

6. The BIM-based modular housing of claim 5, further comprising at least one internal supporting pad coupled to and extending between two of the inward-flanging C-section members, each internal supporting pad comprising: two of the C-section members oppositely positioned relative to at least one web member, each of the C-section members having the base with two bilateral wing plates being coupled to the edge of the at least one web member, each bilateral wing plate having the edge with the plurality of locating grooves parallel with the edge, an outside surface of the internal supporting pad having at least one clamping grooves at the at least one web member, wherein the two bilateral wing plates of each C-section member is pointed at the two bilateral wing plates of the other C-section member with a gap therebetween so as to form a squared cross-sectional profile from two C-section cross-sectional profiles with the gap separating the two C-section members.

7. The BIM-based modular housing of claim 6, further comprising: the two inward-flanging C-section members being coupled to each end of the internal supporting pad by having each base on an inside surface of the corresponding support with the corresponding two bilateral wing plates on the corresponding inside surface of the two bilateral flange plates and with each corresponding edge of the two bilateral wing plates within each corresponding inward flange so that the plurality of rear pressing members of each inward-flanged C-section member are aligned and pressed into the plurality of locating grooves of the corresponding internal supporting pad and so that two inwardly bent inward flanges of different inward-flanging C-section members are pointing toward each other and located within a single notch in the edge of the at least one web member.

8. The BIM-based modular housing of claim 3, further comprising a cross-shaped connecting joint having four arms, each arm comprising at least two of the C-section members oppositely positioned relative to the at least one web member, each of the C-section members having the base with two bilateral wing plates being coupled to the edge of each of the at least one web member, each bilateral wing plate having the edge with the plurality of locating grooves parallel with the edge, an outside surface of the arm having clamping grooves at each end lateral of the corresponding web member, wherein the two bilateral wing plates of each C-section member is pointed at the two bilateral wing plates of the other C-section member with a gap therebetween so as to form a squared cross-sectional profile from two C-section cross-sectional profiles with the gap separating the two C-section members.

9. The BIM-based modular housing of claim 8, further comprising: at least two inward-flanging C-section members being coupled to each arm of the cross-shaped connecting joint by having each base on an inside surface of the corresponding support with the corresponding two bilateral wing plates on the corresponding inside surface of the two bilateral flange plates and with each corresponding edge of the two bilateral wing plates within each corresponding inward flange so that the plurality of rear pressing members of each inward-flanged C-section member are aligned and pressed into the plurality of locating grooves of the corresponding combined squared butting connector and so that two inwardly bent inward flanges of different inward-flanging C-section members are pointing toward each other.

10. The BIM-based modular housing of claim 1, further comprising a four-way connecting joint comprising four arms, each arm comprising: an internal support having at least one C-section member having a base with two bilateral wing plates being coupled to an edge of a web member, each bilateral wing plate having an edge with a plurality of locating grooves parallel with the edge, an outside surface of the arm having clamping grooves at each end lateral of a corresponding web member; an inward-flanging C-section member having a support with two bilateral flanged plates that each have an inwardly bent inward flange and have a plurality of rear pressing members opposite of the inwardly bent inward flange, the at least two inward-flanging C-section members being coupled to the corresponding internal support by having the base on an inside surface of the support with the two bilateral wing plates on an inside surface of the two bilateral flange plates and with each edge of the two bilateral wing plates within each inward flange so that the plurality of rear pressing members are aligned and pressed into the plurality of locating grooves and so that the inwardly bent inward flange is located within a notch in the edge of the web member; and a strap bounding an outside of the inward-flanging C-section member, the strap being positioned within a strap recess, such that each strap is lateral to the corresponding clamping groove and web member so as to be bound there around.

11. The BIM-based modular housing of claim 1, further comprising a three-way connecting joint comprising three arms, each arm comprising: an internal support having at least one C-section member having a base with two bilateral wing plates being coupled to an edge of a web member, each bilateral wing plate having an edge with a plurality of locating grooves parallel with the edge, an outside surface of the arm having clamping grooves at each end lateral of a corresponding web member; an inward-flanging C-section member having a support with two bilateral flanged plates that each have an inwardly bent inward flange and have a plurality of rear pressing members opposite of the inwardly bent inward flange, the at least two inward-flanging C-section members being coupled to the corresponding internal support by having the base on an inside surface of the support with the two bilateral wing plates on an inside surface of the two bilateral flange plates and with each edge of the two bilateral wing plates within each inward flange so that the plurality of rear pressing members are aligned and pressed into the plurality of locating grooves and so that the inwardly bent inward flange is located within a notch in the edge of the web member; a strap bounding an outside of the inward-flanging C-section member, the strap being positioned within a strap recess, such that each strap is lateral to the corresponding clamping groove and web member so as to be bound there around.

12. The BIM-based modular housing of claim 1, further comprising a multi-way connecting joint, the multi-way connecting joint having a plurality of arms, each arm comprising: an internal support having at least one C-section member having a base with two bilateral wing plates being coupled to an edge of a web member, each bilateral wing plate having an edge with a plurality of locating grooves parallel with the edge, an outside surface of the arm having clamping grooves at each end lateral of a corresponding web member; an inward-flanging C-section member having a support with two bilateral flanged plates that each have an inwardly bent inward flange and have a plurality of rear pressing members opposite of the inwardly bent inward flange, the at least two inward-flanging C-section members being coupled to the corresponding internal support by having the base on an inside surface of the support with the two bilateral wing plates on an inside surface of the two bilateral flange plates and with each edge of the two bilateral wing plates within each inward flange so that the plurality of rear pressing members are aligned and pressed into the plurality of locating grooves and so that the inwardly bent inward flange is located within a notch in the edge of the web member; a strap bounding an outside of the inward-flanging C-section member, the strap being positioned within a strap recess, such that each strap is lateral to the corresponding clamping groove and web member so as to be bound there around.

13. The BIM-based modular housing of claim 3, further comprising a multi-way connecting joint, the multi-way connecting joint having a plurality of arms, each arm comprising: an internal support having two C-section members each having a base with two bilateral wing plates being coupled to an edge of a web member opposite of each other, each bilateral wing plate having an edge with a plurality of locating grooves parallel with the edge, an outside surface of the arm having clamping grooves at each end lateral of a corresponding web member; two inward-flanging C-section members each having a support with two bilateral flanged plates that each have an inwardly bent inward flange and have a plurality of rear pressing members opposite of the inwardly bent inward flange, the two inward-flanging C-section members being coupled to the corresponding internal support by having the base on an inside surface of the support with the two bilateral wing plates on an inside surface of the two bilateral flange plates and with each edge of the two bilateral wing plates within each inward flange so that the plurality of rear pressing members are aligned and pressed into the plurality of locating grooves and so that the inwardly bent inward flange is located within a notch in the edge of the web member; and a strap bounding an outside of the inward-flanging C-section member, the strap being positioned within a strap recess, such that each strap is lateral to the corresponding clamping groove and web member so as to be bound there around.

14. The BIM-based modular housing of claim 1, further comprising a corner connecting joint, the corner connecting joint having two arms at an angle with respect to each other, each arm comprising: an internal support having at least one C-section member having a base with two bilateral wing plates being coupled to an edge of a web member, each bilateral wing plate having an edge with a plurality of locating grooves parallel with the edge, an outside surface of the arm having clamping grooves at each end lateral of a corresponding web member; an inward-flanging C-section member having a support with two bilateral flanged plates that each have an inwardly bent inward flange and have a plurality of rear pressing members opposite of the inwardly bent inward flange, the at least two inward-flanging C-section members being coupled to the corresponding internal support by having the base on an inside surface of the support with the two bilateral wing plates on an inside surface of the two bilateral flange plates and with each edge of the two bilateral wing plates within each inward flange so that the plurality of rear pressing members are aligned and pressed into the plurality of locating grooves and so that the inwardly bent inward flange s located within a notch in the edge of the web member; a strap bounding an outside of the inward-flanging C-section member, the strap being positioned within a strap recess, such that each strap is lateral to the corresponding clamping groove and web member so as to be bound there around.

15. The BIM-based modular housing of claim 3, further comprising a corner connecting joint, the corner connecting joint having two arms at an angle with respect to each other, each arm comprising: an internal support having two C-section members each having a base with two bilateral wing plates being coupled to an edge of a web member opposite of each other, each bilateral wing plate having an edge with a plurality of locating grooves parallel with the edge, an outside surface of the arm having clamping grooves at each end lateral of a corresponding web member; two inward-flanging C-section members each having a support with two bilateral flanged plates that each have an inwardly bent inward flange and have a plurality of rear pressing members opposite of the inwardly bent inward flange, the two inward-flanging C-section members being coupled to the corresponding internal support by having the base on an inside surface of the support with the two bilateral wing plates on an inside surface of the two bilateral flange plates and with each edge of the two bilateral wing plates within each inward flange so that the plurality of rear pressing members are aligned and pressed into the plurality of locating grooves and so that the inwardly bent inward flange is located within a notch in the edge of the web member; and a strap bounding an outside of the inward-flanging C-section member, the strap being positioned within a strap recess, such that each strap is lateral to the corresponding clamping groove and web member so as to be bound there around.

16. The BIM-based modular housing of claim 1, further comprising a multi-way connecting joint, the multi-way connecting joint having a plurality of arms, each arm comprising: a C-section member having a base with two bilateral wing plates being coupled to an edge of a web member, each bilateral wing plate having an edge with a plurality of locating grooves parallel with the edge, an outside surface of the arm having clamping grooves at each end lateral of a corresponding web member.

17. The BIM-based modular housing of claim 3, further comprising a multi-way connecting joint, the multi-way connecting joint having a plurality of arms, each arm comprising: an internal support having two C-section members each having a base with two bilateral wing plates being coupled to an edge of a web member opposite of each other, each bilateral wing plate having an edge with a plurality of locating grooves parallel with the edge, an outside surface of the arm having clamping grooves at each end lateral of a corresponding web member.

18. A BIM-based modular housing system comprising: the BIM-based modular housing of claim 1; and a BIM information scanner that is configured to scan and record the BIM information locating piece.

19. A method of recording the BIM information locating piece, the method comprising: providing the BIM-based modular housing system of claim 18; identifying a first BIM information locating piece: and scanning and recording the BIM information locating piece with the BIM information scanner.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a schematic view of the overall structure of a modular housing according to the present disclosure;

(2) FIG. 2 is a schematic view of the structure of a base connector;

(3) FIG. 3 is a schematic view of the structure of a butting connector made of single channel steel;

(4) FIG. 4 is a schematic view of the connection structure between the butting connector made of the single channel steel and inward-flanging C-section steel;

(5) FIG. 5 is a schematic view of a sectional structure of FIG. 4 taken by A-A;

(6) FIG. 6 is a schematic view of the structure of a butting connector made of dual channel steel;

(7) FIG. 7 is a schematic view of the connection structure between the butting connector made of the dual channel steel and inward-flanging C-section steel;

(8) FIG. 8 is a schematic view of a sectional structure of FIG. 7 taken by B-B;

(9) FIG. 9 is a schematic view of the structure of combined square steel arranged by the combination of two inward-flanging C-section steels;

(10) FIG. 10 is a schematic view of the structure of an internal supporting pad of the combined square steel;

(11) FIG. 11 is a schematic view of the three-dimensional structure of FIG. 10;

(12) FIG. 12 is a schematic view of the structure of a cross-shaped connecting joint made of dual channel steel;

(13) FIG. 13 is a schematic view of the structure of a four-way connecting joint made of single channel steel for the beam/columns;

(14) FIG. 14 is a schematic view of the structure of a three-way connecting joint made of single channel steel for the beam/columns;

(15) FIG. 15 is a schematic view of the structure of a three-way connecting joint made of dual channel steel for the beams/columns;

(16) FIG. 16 is a schematic view of the structure of a T-shaped connecting joint made of single channel steel;

(17) FIG. 17 is a schematic view of the structure of an L-shaped connecting joint made of single channel steel;

(18) FIG. 18 is a schematic view of the structure of an L-shaped connecting joint made of dual channel steel;

(19) FIG. 19 is a schematic diagram of the structure of a connecting joint made of single channel steel for a ridge;

(20) FIG. 20 is a schematic diagram of the structure of a connecting joint made of single channel steel for the ridge and a top beam;

(21) FIG. 21 is a schematic diagram of the structure of a connecting joint made of dual channel steel for the ridge and top beam;

(22) FIG. 22 is a schematic diagram of the structure of a six-way connecting joint made of single channel steel mutually perpendicular to each other;

(23) FIG. 23 is a schematic diagram of the structure of a six-way connecting joint made of dual channel steel mutually perpendicular to each other;

(24) FIG. 24 is a schematic diagram of the connecting joint for the ridge and beams;

(25) FIG. 25 is a schematic diagram of the connecting joints between the ridge and beams;

(26) FIG. 26 is a schematic view of a sectional structure of FIG. 25 taken by D-D;

(27) FIG. 27 is a schematic view of the connection structure between reinforcing ribs;

(28) FIG. 28 is a first schematic view of the structure of a combined truss;

(29) FIG. 29 is a schematic diagram of the structure of the crossed connector in FIG. 28;

(30) FIG. 30 is a second schematic view of the structure of the combined truss; and

(31) FIG. 31 is a schematic diagram of the structure of a crossed connector in FIG. 30.

(32) FIG. 32 is a schematic diagram of a base connecting joint.

DESCRIPTION OF REFERENCE SIGNS

(33) A1 butting connector made of single channel steel A2 butting connector made of dual channel steel B internal supporting pad C cross-shaped connecting joint D four-way connecting joint made of single channel steel for beam/columns E1 three-way connecting joint made of single channel steel for beam/columns E2 three-way connecting joint made of dual channel steel for beams/columns F T-shaped connecting joint made of single channel steel G1 L-shaped connecting joint made of single channel steel G2 L-shaped connecting joint made of dual channel steel H connecting joint made of single channel steel for a ridge I1 connecting joint made of single channel steel for the ridge and top beam I2 connecting joint made of dual channel steel for the ridge and top beam J1 six-way connecting joint made of single channel steel mutually perpendicular to each other J2 six-way connecting joint made of dual channel steel mutually perpendicular to each other K connecting joint for the ridge and beams; L slantwise crossed connector M1 integrated K-shaped connecting joint M2 combined K-shaped connecting joint N base connecting joint 1 inward-flanging C-section steel 2 inward flange of inward-flanging C-section steel 3, 3a, 3b webs 4 relief hole 5, 5a punched or perforated locating groove 6 rear-pressing groove 7 base 8 steel strip 9 reinforcing rib

DESCRIPTION OF THE EMBODIMENTS

(34) Referring to FIG. 1, the BIM-based modular housing built with thin-wall channel steels comprises foundations, columns, beams, walls, a roof plate, doors, windows, stairs and fences.

(35) The beams and columns used in the BIM-based modular housing built with thin-wall channel steels adopt a single layer of inward-flanging C-section steel 1 comprising a web and a bilateral wing plate of which the edge is provided with an inwardly bent inward flange 2.

(36) Alternatively, the beams and columns used adopt combined square steel arranged by oppositely buckling symmetric inward-flanging C-section steel 1. Referring to FIGS. 9, 10 and 11, the combined square steel comprises two inward-flanging C-section steels 1 which are buckled oppositely and an inner support; the inner support is a web welded in a matched manner inside two C-section steel joints and punched or perforated locating grooves are arranged in the outer surfaces of the two C-section steel joints, respectively; bilateral side-plates of the two C-section steel joints are aligned and there is a gap between the bilateral side-plates, outward-opening relief grooves are arranged in respective web at the gap; an inward flange 2 is arranged at the bilateral wing plate of the inward-flanging C-section steel, respectively; the inward-flanging C-section steel 1 is wrapped outside the inner support and the inward flange 2 is inserted inside the corresponding relief hole in a matched manner; the surface of the inward-flanging C-section steel 1 is provided with rear-pressing grooves which sleeve within the punched or perforated locating grooves in a matched manner; steel strips are bound outside the inward-flanging C-section steel 1 such that the inward-flanging C-section steel 1 is fixed with inner support in a whole; clamping grooves are arranged outside the C-section steel joint at a position corresponding to the web and the steel strip forces the inward-flanging C-section steel 1 to be locally recessed to enter the clamping groove.

(37) Referring to FIG. 2, the foundations are buried deeply in the ground and butted with respective column by base connectors.

(38) Referring to FIGS. 12 to 32, the beams and columns or the beams are connected to each other together by cross-shaped connectors comprising a cross-shaped connecting joint, a four-way connecting joint made of single channel steel for beam/columns, a three-way connecting joint made of single channel steel for beam/columns, a three-way connecting joint made of dual channel steel for beams/columns, a T-shaped connecting joint made of single channel steel, a six-way connecting joint made of single channel steel mutually perpendicular to each other, a six-way connecting joint made of dual channel steel mutually perpendicular to each other, a slantwise crossed connector, integrated K-shaped connecting joints, combined K-shaped connecting joints, and so on.

(39) The columns and beams or beams are connected by a cross-shaped connecting joint, as shown in FIG. 12, or by a four-way connecting joint made of single channel steel for beam/columns as shown in FIG. 13, or by a three-way connecting joint made of single channel steel for beam/columns as shown in FIG. 14, or by a three-way connecting joint made of dual channel steel for beams/columns as shown in FIG. 15, or by a T-shaped connecting joint made of single channel steel as shown in FIG. 16, or by a six-way connecting joint made of single channel steel mutually perpendicular to each other as shown in FIG. 22, or by a six-way connecting joint made of dual channel steel mutually perpendicular to each other as shown in FIG. 23, or by a slantwise crossed connector as shown in FIG. 27, or by integrated K-shaped connecting joints as shown in FIGS. 28 and 29, or by combined K-shaped connecting joints as shown in FIGS. 30, 31 and 32.

(40) The ridge adopts a ridge made of a single channel steel as shown in FIG. 19, or is connected by a connecting joint made of single channel steel for the ridge and top beam as shown in FIG. 20, or s connected by a connecting joint made of dual channel steel for the ridge and top beam as shown in FIG. 21.

(41) The ridge is connected by a connecting joint for the ridge and beams as shown in FIGS. 24, 25 and 26.

(42) The beams and beams or the columns and columns can be connected by extended connecting joints, i.e., butting connecting joints made of single channel steel as shown in FIGS. 3 to 5 and or butting connecting joints made of dual channel steel as shown in FIGS. 6 to 9.

(43) Each of the base connecting joints, crossed connecting joints, or butting connecting joints, ridge connecting joints and eave connecting joints is provided with a joint comprising a C-section steel and a web, specifically, one C-section steel joint and two C-section steel joints. Punched or perforated locating grooves are arranged at the outside surfaces of the one or two C-section steel joints, respectively. In the case of two C-section steel joints, bilateral side-plates of the two C-section steel joints are aligned and there is a gap between the bilateral side-plates, and outward-opening relief grooves are arranged in respective web at the gap. The inward-flanging C-section steel 1 is wrapped outside one or two C-section steel joints and the inward flange 2 is inserted inside the corresponding relief hole in a matched manner. The surface of the inward-flanging C-section steel 1 is provided with rear-pressing grooves which sleeve within the punched or perforated locating grooves in a matched manner. Steel strips are bound outside the inward-flanging C-section steel 1 such that the inward-flanging C-section steel 1 is fixed with one or two C-section steel joints in a whole; clamping grooves are arranged outside the C-section steel joint at a position corresponding to the web and the steel strip forces the inward-flanging C-section steel 1 to be locally recessed to enter the clamping groove.

(44) Each base connector comprises a base and a connecting joint, one connecting joint is arranged at each of both ends of the butting connectors and the crossed connector is used for fixing at least two connecting joints vertically and slantwise; the connecting joint is arranged by welding at least one horizontal or slant plug, which is groove-shaped, at the sides of the C-section steel joints, the web is welded at the inner sides of the C-section steel joints and slant plug at least at the end position and the punched or perforated locating grooves are arranged at the outside surfaces of the C-section steel joints and slant plug; outward-opening relief grooves are arranged between respective web and bilateral side-plates of the C-section steel joints or the slant plug; and clamping grooves are arranged outside the C-section steel joints and the slant plug at a position corresponding to the web.

(45) Information on a unique name, a unique spatial location, a shape and a material of respective workpiece in a steel structure project, including the information on the unique name, unique spatial location, shape and material of beams, columns and respective connecting joint recorded by BIM information locating pieces, is recorded using the BIM information locating pieces; during the construction, the information included in the BIM information locating pieces on respective workpiece is read by a BIM information scanner to perform the connection and welding construction of respective workpiece in the project.

(46) A butting connecting joint A1 for single thin-wall inward-flanging C-section steel is shown in FIG. 4. The connecting joint is a web welded in a matched manner at least at both ends inside one C-section steel joints, respectively and punched or perforated locating grooves are arranged in the outer surfaces of the C-section steel joints; outward-opening relief grooves 4 are arranged between respective web and bilateral side-plates of the C-section steel joints; and clamping grooves 7 are arranged outside the C-section steel joints and arranged at a position corresponding to the web. Matching weight-reducing holes can also be arranged in the middle of partial web of respective connector so as to further reduce the self-weight of the connector, thereby reduce the self-weight of the housing.

(47) A building information modeling (BIM)-based modular housing built with workpieces made of thin-wall channel steel, the workpieces comprises: a butting connector (A1) having at least one C-section member (100) having a base (102) with two bilateral wing plates (104) being coupled to an edge of at least two web members (3, 3a, 3b), each bilateral wing plate (104) having an edge with a plurality of locating grooves parallel with the edge, an outside surface of the butting connector (A1) having clamping grooves (112) at each end lateral of a corresponding web member (3, 3a, 3b); at least two separate inward-flanging C-section members (1) each having a support (106) with two bilateral flanged plates (108) that each have an inwardly bent inward flange (2) and have a plurality of rear pressing members (6) opposite of the inwardly bent inward flange (2), the at least two inward-flanging C-section members (1) being coupled to opposite ends of the at least one corresponding butting connector (A1) by having the base (102) on an inside surface of the support (106) with the two bilateral wing plates (104) on an inside surface of the two bilateral flange plates (108) and with each edge of the two bilateral wing plates (104) within each inward flange (2) so that the plurality of rear pressing members (6) are aligned and pressed into the plurality of locating grooves (5) and so that the inwardly bent inward flange (2) is located within a notch (4) in the edge of the at least two web members (3, 3a, 3b); at least two straps (8) bounding an outside of the at least one inward-flanging C-section member (1), each strap (8) being positioned within a strap recess (110), such that each strap (8) is lateral to a corresponding clamping groove (112) and web member (3, 3a, 3b) so as to be bound there around; and a BIM information locating piece (120) on the workpiece, the BIM information locating piece (120) including information with a unique name of the workpiece, a unique spatial location of the workpiece, a shape of the workpiece, and a material of the workpiece, the BIM information locating piece (120) being readable.

(48) The BIM-based modular housing can include a combined squared butting connector (A2) having at least two of the C-section members (100) oppositely positioned relative to the at least two webs (3, 3a, 3b), each of the C-section members (100) having the base (102) with two bilateral wing plates (104) being coupled to the edge of each of the at least two a web members (3, 3a, 3b), each bilateral wing plate (104) having the edge with the plurality of locating grooves parallel with the edge, an outside surface of the butting connector (A1) having clamping grooves (112) at each end lateral of a corresponding web member (3, 3a, 3b), wherein the two bilateral wing plates (104) of each C-section member (100) is pointed at the two bilateral wing plates (104) of the other C-section member (100) with a gap therebetween so as to form a squared cross-sectional profile from two C-section cross-sectional profiles with the gap separating the two C-section members (100).

(49) The BIM-based modular housing of can include: at least two inward-flanging C-section members (1) being coupled to each end of the combined squared butting connector (A2) by having each base (102) on an inside surface of the corresponding support (106) with the corresponding two bilateral wing plates (104) on the corresponding inside surface of the two bilateral flange plates (108) and with each corresponding edge of the two bilateral wing plates (104) within each corresponding inward flange (2) so that the plurality of rear pressing members (6) of each inward-flanged C-section member (1) are aligned and pressed into the plurality of locating grooves (5) of the corresponding combined squared butting connector (A2) and so that two inwardly bent inward flanges (2) of different inward-flanging C-section members (1) are pointing toward each other and located within a single notch (4) in the edge of each of the web members (3, 3a, 3b).

(50) The BIM-based modular housing can include two inwardly bent inward flanges (2) pointing toward each other being located within a single notch (4) in the edge of the at least two web members (3, 3a, 3b), wherein each web member (3, 3a, 3b) includes at least two notches (4), each notch (4) being formed in a side of the edge opposite of the other notch (4).

(51) The BIM-based modular housing can include the at least two straps (8) bound an outside of the combined squared butting connector (A2), each strap (8) being positioned within a strap recess (110), such that each strap (8) is lateral to a corresponding clamping groove (112) and web member (3, 3a, 3b) so as to be bound there around.

(52) The BIM-based modular housing can include at least one internal supporting pad (B) coupled to and extending between two of the inward-flanging C-section members (1), each internal supporting pad (B) comprising: two of the C-section members (100) oppositely positioned relative to at least one web member (3), each of the C-section members (100) having the base (102) with two bilateral wing plates (104) being coupled to the edge of the at least one web member (3), each bilateral wing plate (104) having the edge with the plurality of locating grooves parallel with the edge, an outside surface of the internal supporting pad (B) having at least one clamping grooves (112) at the at least one web member (3), wherein the two bilateral wing plates (104) of each C-section member (100) is pointed at the two bilateral wing plates (104) of the other C-section member (100) with a gap therebetween so as to form a squared cross-sectional profile from two C-section cross-sectional profiles with the gap separating the two C-section members (100).

(53) The BIM-based modular housing can include: the two inward-flanging C-section members (1) being coupled to each end of the internal supporting pad (B) by having each base (102) on an inside surface of the corresponding support (106) with the corresponding two bilateral wing plates (104) on the corresponding inside surface of the two bilateral flange plates (108) and with each corresponding edge of the two bilateral wing plates (104) within each corresponding inward flange (2) so that the plurality of rear pressing members (6) of each inward-flanged C-section member (1) are aligned and pressed into the plurality of locating grooves (5) of the corresponding internal supporting pad (B) and so that two inwardly bent inward flanges (2) of different inward-flanging C-section members (1) are pointing toward each other and located within a single notch (4) in the edge of the at least one web member (3).

(54) The BIM-based modular housing can include: a cross-shaped connecting joint (C) having four arms, each arm comprising at least two of the C-section members (100) oppositely positioned relative to the at least one web (3, 3a, 3b), each of the C-section members (100) having the base (102) with two bilateral wing plates (104) being coupled to the edge of each of the at least one web member (3, 3a, 3b), each bilateral wing plate (104) having the edge with the plurality of locating grooves parallel with the edge, an outside surface of the arm having clamping grooves (112) at each end lateral of the corresponding web member (3, 3a, 3b), wherein the two bilateral wing plates (104) of each C-section member (100) is pointed at the two bilateral wing plates (104) of the other C-section member (100) with a gap therebetween so as to form a squared cross-sectional profile from two C-section cross-sectional profiles with the gap separating the two C-section members (100).

(55) The BIM-based modular housing can include: at least two inward-flanging C-section members (1) being coupled to each arm of the cross-shaped connecting joint (C) by having each base (102) on an inside surface of the corresponding support (106) with the corresponding two bilateral wing plates (104) on the corresponding inside surface of the two bilateral flange plates (108) and with each corresponding edge of the two bilateral wing plates (104) within each corresponding inward flange (2) so that the plurality of rear pressing members (6) of each inward-flanged C-section member (1) are aligned and pressed into the plurality of locating grooves (5) of the corresponding combined squared butting connector (A2) and so that two inwardly bent inward flanges (2) of different inward-flanging C-section members (1) are pointing toward each other.

(56) The BIM-based modular housing can include a four-way connecting joint (D) comprising four arms, each arm comprising: an internal support having at least one C-section member (100) having a base (102) with two bilateral wing plates (104) being coupled to an edge of a web member (3a), each bilateral wing plate (104) having an edge with a plurality of locating grooves parallel with the edge, an outside surface of the arm having clamping grooves (112) at each end lateral of a corresponding web member (3a); an inward-flanging C-section member (1) having a support (106) with two bilateral flanged plates (108) that each have an inwardly bent inward flange (2) and have a plurality of rear pressing members (6) opposite of the inwardly bent inward flange (2), the at least two inward-flanging C-section members (1) being coupled to the corresponding internal support by having the base (102) on an inside surface of the support (106) with the two bilateral wing plates (104) on an inside surface of the two bilateral flange plates (108) and with each edge of the two bilateral wing plates (104) within each inward flange (2) so that the plurality of rear pressing members (6) are aligned and pressed into the plurality of locating grooves (5) and so that the inwardly bent inward flange (2) is located within a notch (4) in the edge of the web member (3a); a strap (8) bounding an outside of the inward-flanging C-section member (1), the strap (8) being positioned within a strap recess (110), such that each strap (8) is lateral to the corresponding clamping groove (112) and web member (3a) so as to be bound there around.

(57) The BIM-based modular housing can include a three-way connecting joint (D) comprising three arms, each arm comprising: an internal support having at least one C-section member (100) having a base (102) with two bilateral wing plates (104) being coupled to an edge of a web member (3a), each bilateral wing plate (104) having an edge with a plurality of locating grooves parallel with the edge, an outside surface of the arm having clamping grooves (112) at each end lateral of a corresponding web member (3a); an inward-flanging C-section member (1) having a support (106) with two bilateral flanged plates (108) that each have an inwardly bent inward flange (2) and have a plurality of rear pressing members (6) opposite of the inwardly bent inward flange (2), the at least two inward-flanging C-section members (1) being coupled to the corresponding internal support by having the base (102) on an inside surface of the support (106) with the two bilateral wing plates (104) on an inside surface of the two bilateral flange plates (108) and with each edge of the two bilateral wing plates (104) within each inward flange (2) so that the plurality of rear pressing members (6) are aligned and pressed into the plurality of locating grooves (5) and so that the inwardly bent inward flange (2) is located within a notch (4) in the edge of the web member (3a); a strap (8) bounding an outside of the inward-flanging C-section member (1), the strap (8) being positioned within a strap recess (110), such that each strap (8) is lateral to the corresponding clamping groove (112) and web member (3a) so as to be bound there around.

(58) The BIM-based modular housing can include a multi-way connecting joint, the multi-way connecting joint having a plurality of arms, each arm comprising: an internal support having at least one C-section member (100) having a base (102) with two bilateral wing plates (104) being coupled to an edge of a web member (3a), each bilateral wing plate (104) having an edge with a plurality of locating grooves parallel with the edge, an outside surface of the arm having clamping grooves (112) at each end lateral of a corresponding web member (3a); an inward-flanging C-section member (1) having a support (106) with two bilateral flanged plates (108) that each have an inwardly bent inward flange (2) and have a plurality of rear pressing members (6) opposite of the inwardly bent inward flange (2), the at least two inward-flanging C-section members (1) being coupled to the corresponding internal support by having the base (102) on an inside surface of the support (106) with the two bilateral wing plates (104) on an inside surface of the two bilateral flange plates (108) and with each edge of the two bilateral wing plates (104) within each inward flange (2) so that the plurality of rear pressing members (6) are aligned and pressed into the plurality of locating grooves (5) and so that the inwardly bent inward flange (2) is located within a notch (4) in the edge of the web member (3a); a strap (8) bounding an outside of the inward-flanging C-section member (1), the strap (8) being positioned within a strap recess (110), such that each strap (8) is lateral to the corresponding clamping groove (112) and web member (3a) so as to be bound there around.

(59) The BIM-based modular housing can include a multi-way connecting joint, the multi-way connecting joint having a plurality of arms, each arm comprising: an internal support having two C-section members (100) each having a base (102) with two bilateral wing plates (104) being coupled to an edge of a web member (3) opposite of each other, each bilateral wing plate (104) having an edge with a plurality of locating grooves parallel with the edge, an outside surface of the arm having clamping grooves (112) at each end lateral of a corresponding web member (3); two inward-flanging C-section members (1) each having a support (106) with two bilateral flanged plates (108) that each have an inwardly bent inward flange (2) and have a plurality of rear pressing members (6) opposite of the inwardly bent inward flange (2), the two inward-flanging C-section members (1) being coupled to the corresponding internal support by having the base (102) on an inside surface of the support (106) with the two bilateral wing plates (104) on an inside surface of the two bilateral flange plates (108) and with each edge of the two bilateral wing plates (104) within each inward flange (2) so that the plurality of rear pressing members (6) are aligned and pressed into the plurality of locating grooves (5) and so that the inwardly bent inward flange (2) is located within a notch (4) in the edge of the web member (3); and a strap (8) bounding an outside of the inward-flanging C-section member (1), the strap (8) being positioned within a strap recess (110), such that each strap (8) is lateral to the corresponding clamping groove (112) and web member (3) so as to be bound there around.

(60) The BIM-based modular housing can include a corner connecting joint, the corner connecting joint having two arms at an angle with respect to each other, each arm comprising: an internal support having at least one C-section member (100) having a base (102) with two bilateral wing plates (104) being coupled to an edge of a web member (3a), each bilateral wing plate (104) having an edge with a plurality of locating grooves parallel with the edge, an outside surface of the arm having clamping grooves (112) at each end lateral of a corresponding web member (3a); an inward-flanging C-section member (1) having a support (106) with two bilateral flanged plates (108) that each have an inwardly bent inward flange (2) and have a plurality of rear pressing members (6) opposite of the inwardly bent inward flange (2), the at least two inward-flanging C-section members (1) being coupled to the corresponding internal support by having the base (102) on an inside surface of the support (106) with the two bilateral wing plates (104) on an inside surface of the two bilateral flange plates (108) and with each edge of the two bilateral wing plates (104) within each inward flange (2) so that the plurality of rear pressing members (6) are aligned and pressed into the plurality of locating grooves (5) and so that the inwardly bent inward flange (2) is located within a notch (4) in the edge of the web member (3a); a strap (8) bounding an outside of the inward-flanging C-section member (1), the strap (8) being positioned within a strap recess (110), such that each strap (8) is lateral to the corresponding clamping groove (112) and web member (3a) so as to be bound there around.

(61) The BIM-based modular housing can include a corner connecting joint, the corner connecting joint having two arms at an angle with respect to each other, each arm comprising: an internal support having two C-section members (100) each having a base (102) with two bilateral wing plates (104) being coupled to an edge of a web member (3) opposite of each other, each bilateral wing plate (104) having an edge with a plurality of locating grooves parallel with the edge, an outside surface of the arm having clamping grooves (112) at each end lateral of a corresponding web member (3); two inward-flanging C-section members (1) each having a support (106) with two bilateral flanged plates (108) that each have an inwardly bent inward flange (2) and have a plurality of rear pressing members (6) opposite of the inwardly bent inward flange (2), the two inward-flanging C-section members (1) being coupled to the corresponding internal support by having the base (102) on an inside surface of the support (106) with the two bilateral wing plates (104) on an inside surface of the two bilateral flange plates (108) and with each edge of the two bilateral wing plates (104) within each inward flange (2) so that the plurality of rear pressing members (6) are aligned and pressed into the plurality of locating grooves (5) and so that the inwardly bent inward flange (2) is located within a notch (4) in the edge of the web member (3); and a strap (8) bounding an outside of the inward-flanging C-section member (1), the strap (8) being positioned within a strap recess (110), such that each strap (8) is lateral to the corresponding clamping groove (112) and web member (3) so as to be bound there around.

(62) The BIM-based modular housing can include a multi-way connecting joint, the multi-way connecting joint having a plurality of arms, each arm comprising: a C-section member (100) having a base (102) with two bilateral wing plates (104) being coupled to an edge of a web member (3a), each bilateral wing plate (104) having an edge with a plurality of locating grooves parallel with the edge, an outside surface of the arm having clamping grooves (112) at each end lateral of a corresponding web member (3a).

(63) The BIM-based modular housing can include a multi-way connecting joint, the multi-way connecting joint having a plurality of arms, each arm comprising: an internal support having two C-section members (100) each having a base (102) with two bilateral wing plates (104) being coupled to an edge of a web member (3) opposite of each other, each bilateral wing plate (104) having an edge with a plurality of locating grooves parallel with the edge, an outside surface of the arm having clamping grooves (112) at each end lateral of a corresponding web member (3).

(64) A BIM-based modular housing system can include: a BIM-based modular housing; and a BIM information scanner that is configured to scan and record the BIM information locating piece (120).

(65) A method of recording the BIM information locating piece can include: providing the BIM-based modular housing system; identifying a first BIM information locating piece: and scanning and recording the BIM information locating piece (120) with the BIM information scanner.