A COLLABORATING JOIST AND SUSPENDED CEILING SYSTEM AND A METHOD FOR ASSEMBLING THE SYSTEM

Abstract

A collaborating joist and suspended ceiling system for a suspended ceiling is provided. The system comprises: profiled lightweight beams elongated in a first direction, each having flange ends at distal ends thereof; a first edge beam, having recesses corresponding to the flange ends, said first edge beam contacting the flange ends; bent panels mounted between pairs of profiled lightweight beams rest on a lower flange of the respective beam, each of the bent panels is provided with a pair of crown beams on an upper side of the bent panel for linear distribution of a pressure exerted from below, the crow beams extending along the first direction; and secondary beams having vertical spacers, vertical spacers arranged between adjacent pairs of parallel secondary beams, and wherein the secondary beams extend in a second direction perpendicular to the first direction.

Claims

1. A collaborating joist and suspended ceiling system, said system comprises: profiled lightweight beams elongated in a first direction, each of the profiled lightweight beams having flange ends at distal ends thereof; a first edge beam, having recesses corresponding to the footprint and depth of the flange ends of the profiled lightweight beams, said first edge beam being in contact with the flange ends such that mechanical contact between the profiled lightweight beams and the first edge beam is obtained; bent panels mounted between pairs of profiled lightweight beams and resting on a lower flange of the respective profiled lightweight beam, wherein each of the respective bent panels is provided with a pair of crown beams arranged on an upper side of the bent panel for linear distribution of a pressure exerted from below on the bent panel, the crown beams extending along the first direction; and secondary beams having vertical spacers, wherein the vertical spacers are arranged between adjacent pairs of parallel secondary beams, and wherein the secondary beams are arranged on the crown beams and on the profiled lightweight beams, wherein the secondary beams extend in a second direction, the second direction being perpendicular to the first direction, thereby forming the suspended ceiling supported by a rectangular grid structure.

2. The system according to claim 1, wherein the profiled lightweight beam has an I-profile, the I-profile comprising two flanges separated by a web.

3. The system according to claim 1, wherein the first edge beam is made of glulam.

4. The system according to claim 1, wherein the system also comprises a second edge beam, the second edge beam having recesses corresponding to the footprint and depth of the flange ends of the profiled lightweight beams, wherein the second edge beam is arranged in mechanical contact with the flange ends of the profiled lightweight beams at distal ends thereof being opposite to the distal ends being attached to the first edge beam.

5. The system according to claim 1, wherein the bent panels are Plywood sheets.

6. The system according to claim 1, wherein a floor is installed on top of the secondary beams.

7. The system according to claim 1, wherein the vertical distances are screwed to the adjacent pairs of parallel secondary beams.

8. The system according to claim 1, wherein one or more of the following comprises fire protective paint: the profiled lightweight beams; and the bent panels.

9. The system according to claim 1, wherein a vibration damping element is arranged on each of the crown beams, the vibration damping elements being arranged between the secondary beams and the crown beams such that transfer of vibrations is reduced between the bent panels and the secondary beams.

10. The system according to claim 1, wherein the system comprises two adjacent bent panels arranged juxtaposed between a pair of profiled lightweight beams and a cover panel arranged on and overlapping with the two adjacent bent panels.

11. The system according to claim 1, wherein the system comprises an acoustic insulating panel or an acoustic insulating sheet arranged in between the bent panels and upper flanges of the profiled lightweight beams, wherein the acoustic insulating panel or sheet extends in width between the adjacent pair of profiled lightweight beams such that acoustic sound transfer from one side of the acoustic insulating panel or sheet to the other side thereof is reduced.

12. The system according to claim 1, wherein the system comprises a vibration damping sheet, the vibration damping sheet being arranged on a convex surface of the bent panels such that vibrations of the bent panels are dampened.

13. A method for assembling the collaborating joist and suspended ceiling system according to claim 1, wherein the method comprises: arranging the profiled lightweight beams on a supporting structure, each of the profiled lightweight beams having flange ends at distal ends thereof, the profiled lightweight beams being elongated in a first direction; arranging the first edge beam in mechanical contact with flange ends of the profiled lightweight beams; inserting between pairs of profiled lightweight beams the bent panels provided with a pair of crown beams such that the bent panels rest on a lower flange of the respective profiled lightweight beams; arranging pairs of parallel secondary beams having vertical spacers arranged in between the adjacent secondary beams, on the crown beams and on the profiled lightweight beams, wherein the secondary beams extend in a second direction, the second direction being perpendicular to the first direction thereby forming the supported ceiling supported by a rectangular grid structure.

14. The method for assembling the system according to claim 10, wherein the inserting comprises inserting the bent panels at the flange end of the pair of profiled lightweight beams and sliding the bent panels along the lower flanges of the respective profiled lightweight beams.

15. The method for assembling the system according to claim 9, the system further comprises a second edge beam, wherein the method further comprises arranging the second edge beam in mechanical contact with the flange ends of the profiled lightweight beams at distal ends thereof being opposite to the distal ends attached to the first edge beam.

Description

LIST OF DRAWINGS

[0063] The above objects, as well as additional objects, features and advantages of the present disclosure, will be more fully appreciated by reference to the following illustrative and non-limiting detailed description of example embodiments of the present disclosure, when taken in conjunction with the accompanying drawings.

[0064] FIGS. 1 to 11 illustrate generally perspective views of different parts of a collaborating joist and suspended ceiling system according to some embodiments.

[0065] FIGS. 12 to 13 illustrate generally perspective views of the fully assembled collaborating joist and suspended ceiling system according to some embodiments.

[0066] FIGS. 14 to 21 illustrate generally perspective views of an assembly sequence for assembling a collaborating joist and suspended ceiling system according to some embodiments.

[0067] More specifically the drawings generally illustrate:

[0068] FIG. 1 illustrates generally a perspective side view of a profiled lightweight beam according to some embodiments.

[0069] FIG. 2 illustrates generally a perspective side view of a bent panel.

[0070] FIG. 3 illustrates generally a perspective cross-sectional view of a pair of crown beams according to some embodiments.

[0071] FIG. 4 illustrates generally a perspective side view of a bent panel provided with a pair of crown beams according to some embodiments.

[0072] FIG. 5 illustrates generally a perspective side view of a secondary beam having vertical spacers according to some embodiments.

[0073] FIG. 6 illustrates generally a perspective cross-sectional view of an edge beam according to some embodiments.

[0074] FIG. 7 illustrates generally a perspective front view of an edge beam according to some embodiments.

[0075] FIG. 8 illustrates generally a cross-sectional side view of an assembled collaborating joist and suspended ceiling system according to some embodiments.

[0076] FIG. 9 illustrates generally a perspective top view of work floor arranged to be attached to the collaborating joist and suspended ceiling system according to some embodiments.

[0077] FIG. 10 illustrates generally a perspective view from below of a cover panel provided between a pair of bent panels according to some embodiments.

[0078] FIG. 11 illustrates generally a perspective view from above of a fireproof sealing of the interface between two adjacent bent panels according to some embodiments.

[0079] FIG. 12 illustrates generally a perspective view from above of a collaborating joist and suspended ceiling system arranged on top of a support according to some embodiments.

[0080] FIG. 13 illustrates generally a perspective view from below of a collaborating joist and suspended ceiling system arranged on top of a support according to some embodiments.

[0081] FIGS. 14 to 21 illustrate generally perspective views of an assembly sequence for a collaborating joist and suspended ceiling system according to some embodiments.

[0082] FIG. 22 illustrates schematically a block diagram of the method for assembling a collaborating joist and suspended ceiling system according to some embodiments.

[0083] FIG. 23 illustrates generally a cross-sectional side view of a collaborating joist and suspended ceiling system comprising vibrational and acoustical insulation according to some embodiments.

DETAILED DESCRIPTION

[0084] The present disclosure will now be described with reference to the accompanying drawings, in which preferred example embodiments of the disclosure are shown. The disclosure may, however, be embodied in other forms and should not be construed as limited to the herein disclosed embodiments. The disclosed embodiments are provided to fully convey the scope of the disclosure to the skilled person.

[0085] Advantages of the system for a suspended ceiling and the method for assembling the collaborating joist and suspended ceiling system are here discussed, with reference to FIGS. 1 to 13. An advantage being that the cooperative principle of the parts of the collaborating joist and suspended ceiling system may distribute (possible) fire pressure that can arise from below towards the formed ceiling (may be understood as the false ceiling) consisting of a sequence of vaults. The vaults being formed by the bent panels. The bent panels may be understood to form arches. Through the crown beams, the pressure is distributed along the long axis of the arches (formed by the bent panels) and from the crown beams to the spacers which in turn transmit the pressure to the secondary beams. The pressure may finally be distributed to a floor. That is, the pressure arising from below may gradually be absorbed by surfaces as well as linear-shaped elements of the collaborating joist and suspended ceiling system and may finally be distributed over the entire floor surface. Simultaneously, the loads may be transferred from the floor to the primary beams, i.e. the profiled lightweight beams, through the secondary beams.

[0086] A certain degree of sound absorption may further be achieved by regulating the vault height and the degree of concavity of the vaults, i.e. of the bent panels. This is, however, a limited function because the concavity of the vaults is dependent on the center distance of the profiled lightweight beams and also because the project has certain height requirements that are not only dimensioned according to the need for sound absorption.

[0087] The system is also characterized by the fact that 2 out of 4 facades may have arched openings for windows or ducts and of that the vault sequence of the suspended ceiling.

[0088] According to some embodiments, the system may be seen as an internal structure that must be supplemented with an external climate shell with an air gap between both layers.

[0089] According to some embodiments, the anchoring of both the profiled lightweight beams and the secondary beams may be provided according to the respective construction document and respective strength dimensioning.

[0090] According to some embodiments, the different components of the system may be produced by manufacturing and assembling components as follows:

[0091] Regarding items 1a, 1b, 1c: Profiled lightweight beams such as Hunton or Masonite which may have been life-profiled, i.e. having a I-profile comprising two opposite flanges separated by a web, in the workshop to leave flange ends free 1c, i.e. the flange ends being arranged to be connected to other objects, such as an end beam. Put differently, the profiled lightweight beams may be made out of Hunton or Masonite. The joist system may be of wood. The collaborating joist and suspended ceiling system may be of wood-based system.

[0092] According to some embodiments, the lightweight beams may be fitted with triangular-shaped sealing wedges 1b. The sealing wedges may be made of wood and may be glued firmly against both upper sides of the lower flange. The sealings may in other embodiments have a different shape, such as rectangular or cylindrical shape.

[0093] According to some embodiments, the wedge-equipped and life-profiled, i.e. the I-profiled lightweight beam may be fire-painted by dipping the bottom flange and half the life (in height) into a container containing fire paint.

[0094] Regarding items 2a, 2b: The vault, consisting of bent panels 2a may be fire-painted on the side that will be the exposed part of a ceiling surface. The ceiling surface may be referred to as a false ceiling surface. The edges of the bent panels may also be painted. After drying, the panels may be fitted with the crown beams 2b, glued against the upper side of the bent panels. The crown beams may be fastened by other means, such as by nails, screws or similar fastening means.

[0095] Regarding items 3a, 3b: The vertical spacers 3a may be screwed to the secondary beams (3b). According to other embodiments the vertical spacers may be attached by other means such as by gluing or nailing.

[0096] Regarding items 4a, 4b: The edge beams 4a, may be provided with milled impressions 4b, i.e. recesses, corresponding to the depth of the flange ends of the profiled lightweight beams, according to construction documents and strength dimensioning. According to some embodiments the recesses may be stretching in depth through the edge beams such that through-holes are formed.

[0097] Regarding items 5a, 5b: According to some examples, a temporary work floor 5a, 5b may be arranged on the profiled lightweight beams. The temporary work floor may comprise spacers, e.g. in the form of bars.

[0098] The temporary work floor may be made by reinforced structural plywood. The temporary work floor may, by way of example, comprise at least two 1.2 m*2.4 m*0.021 m sheets of structural plywood. The work floor may have parallel rails spaced at a distance corresponding to the distance in between underlying adjacent pairs of profiled lightweight beams. The rails may, by way of example, be 45 or 60 mm. The distance may, by way of example be 45 or 60 mm (according the flange dimensions of the profiled lightweight beam) distance between each other and with the same center distance as of the lightweight beams 1a. The temporary work floor may be able to be moved back and forth along the upper flanges of the lightweight beams as if these would be rails. Its function is to provide a certain statute that makes it possible to mount all additional elements. These work floor may thus be used as a temporary work floor.

[0099] Regarding items 6a, 6b: According to some examples, the system may further comprise two adjacent bent panels 2a arranged juxtaposed between a pair of profiled lightweight beams 1a and a cover panel 6a arranged on and overlapping with the two adjacent bent panels 2a. In other words, according to some examples, and if the vaults, or put differently arches formed by the bent panels, are longer than the module of the bent panel, adjacent bent panels may be connected by placing a cover panel 6a of the same material on the underside of the vault, such that it becomes visible from inside the room. On the opposite side of the bent panels, i.e. on top of the bent panels, the joint formed between the panels may comprise a fireproof sealing 6b.

[0100] Regarding items 7: According to some embodiments, a floor 7a may be installed on top of the secondary beams 3b. The floor 7a may consists of a wooden board according to the respective building document, and may be attached, e.g. by screwing, to both edge beams 4a and the secondary beams 3b.

[0101] Regarding items 8: For assembly, the system may require that the workplace is provided with scaffolding around the system to be built. Alternatively, a lifting device may be used with a connected safe workplace.

[0102] Advantages of the method for assembling the system are here discussed with reference to FIGS. 14 to 21.

[0103] According to some examples, the lightweight beams 1a may be placed on the supporting structure 8 (e.g. wall or beam) using a lifting device and anchored to the supporting structure temporarily from the surrounding workplace.

[0104] According to some examples, one edge beam 4a is first fitted against one side of the profiled lightweight beams. Put differently, the edge beam may be arranged against a buttress such as a wall to give stability. The first row of flange ends 1c may then be glued and anchored against the recesses of the edge beam. The edge beams may be anchored to the supporting structure also in accordance with the respective construction regulation. The other end of the profiled lightweight beams may be free until further notice and may be terminated after all the vaults, i.e. the bent panels, are put in place. In other words, the method may comprise mounting the second edge beam 4a on an opposite side of the profiled lightweight beams 1a to the side being in contact with the first edge beam 4a.

[0105] According to some examples, the work floors 5a, 5b may be placed against the profiled lightweight beams. The purpose is to provide a temporary stability for maneuvering of upcoming elements in the assembly of the joist.

[0106] According to some examples, the bent panels 2a, 2b may be equipped with crown beams that are lifted up and in between the profiled lightweight beams. The workers' main task may here be to retract the bent profiles, (forming vaults), such that they are lifted to the correct height using a lifting device, for example a lifting table or sky lift. Put differently, the bent panels are inserted in between two adjacent profiled lightweight beams.

[0107] According to some examples, the suspended ceiling is finished when all the bent panels are in place and it has been completed with the second one the edge beam, i.e. the second end beam has been attached to the profiled lightweight beams. In this way, a box-shaped structure is created and the joist gets greater stability. Put differently, rectangular grid structure and a suspended ceiling is provided.

[0108] According to some examples, the temporary work floors may be moved to give space for the secondary beams with vertical spacers which are attached to the crown beams. The secondary beams 3b and the vertical spacers may be lifted up using a lifting device, for example a lifting table or sky lift to then be placed in the correct position according to respective building document and then attached, for example by screws, to the crown beams.

[0109] According to some examples and depending on the size of the joists, the work floors may be successively moved to continue the same maneuver. By way of example, when the distance to the inner side of each edge beam is approx. 1.3 m, these must be lifted up and the rest of the maneuvering may take place from the surrounding workplace or from yet another temporary work surface which may be created by placing the work floors on the secondary beams.

[0110] According to some examples, the assembly may result at this stage in spaces between the profile lightweight beams and the above the bent panels that may be supplemented with insulation.

[0111] According to some examples, the top side of the collaborating joist and suspended ceiling system may be covered with a Plywood board and used directly as floor covering.

[0112] According to some examples, and if the arches need to have a length that exceeds the bendable panels, these must be placed consecutively after each other. The intersections formed in between adjacent bent panels may have fireproof sealing. The vaults formed by the bent panels may be covered from below with a sealing panel. The sealing panel may be of the same material as the bent panels.

[0113] With reference to FIG. 22 illustrates the method for assembling a collaborating joist and suspended ceiling system according to some embodiments is described. The method 10 comprises: arranging 10a the profiled lightweight beams 1a on a supporting structure, each of the profiled lightweight beams 1a having flange ends 1c at distal ends thereof, the profiled lightweight beams 1a being elongated in a first direction; [0114] arranging 10b the first edge beam 4a in mechanical contact with a flange end 1c of the profiled lightweight beams 1a; [0115] inserting 10c between pairs of profiled lightweight beams 1a the bent panels 2a fitted with a pair of crown beams 2b such that the bent panels 2a rest on a lower flange of the respective profiled lightweight beams 1a; [0116] arranging 10d pairs of parallel secondary beams 3b having vertical spacers 3a arranged in between the adjacent secondary beams 3b, on the crown beams 2b and on the profiled lightweight beams 1a such that the secondary beams 3b are extending in a second direction, the second direction being perpendicular to the first direction thereby forming the supported ceiling supported by a rectangular grid structure.

[0117] According to some embodiments, the inserting 10c may comprise inserting the bent panels 2a at the flange end 1c of the pair of profiled lightweight beams 1c and sliding the bent panels 2a along the lower flanges of the respective profiled lightweight beams 1a.

[0118] According to some embodiments, the system may further comprise a second edge beam 4a, wherein the method 10 further comprises arranging the second edge beam 4a in mechanical contact with the flange ends 1c of the profiled lightweight beams 1a at a side thereof being opposite to the side attached to the first edge beam 4a.

[0119] According to some embodiments, the method may further comprise providing a vibration damping element 11 at a distal end of the respective crown beams 2b, the distal ends being on an opposite side of that of the bent panels 2a such that when the parallel secondary beams 3b are mounted against the crown beams 2b the parallel secondary beams 3b are mounted on and in contact with the vibration damping elements 11.

[0120] With reference to FIG. 23, the system may further according to some embodiments comprise a vibration damping element 11 that is arranged on each of the crown beams 2b, the vibration damping elements 11 being arranged between the secondary beams 3b and the crown beams 2b such that transfer of vibrations is reduced between the bent panels 2a and the secondary beams 3b.

[0121] According to some embodiments, wherein the system may further comprise an acoustic insulating panel 12 arranged in between the bent panels 2a and the corresponding crown beams 2b. The insulating panel may extend in width between the adjacent pair of profiled lightweight beams 1a such that acoustic sound transfer from one side of a plane formed by the system to the other side of the plane is reduced.

[0122] According to some embodiments, the system comprises an acoustic insulating panel or an acoustic insulating sheet 12 arranged in between the bent panels 2a and upper flanges of the profiled lightweight beams 1a, wherein the acoustic insulating panel or sheet extends in width between the adjacent pair of profiled lightweight beams 1a such that acoustic sound transfer from one side of the acoustic insulating panel or sheet to the other side thereof is reduced.

[0123] According to some embodiments, wherein the system further comprises a vibration damping sheet 13. The vibration damping sheet 13 may be arranged on a convex surface of the bent panels 2a such that vibrations of the bent panels 2a are dampened.

[0124] According to some embodiments, the system may further comprise insulation material 14 in the form of gravel, sand, soil or mixtures thereof. The insulation material may be arranged at a border region 15 formed by distal portions of the convex surfaces of the bent panels 2a and the adjacent the profiled lightweight beams 1c to which the bent panels 2a are connected.

[0125] According to some embodiments the second edge beam is made of glulam.

[0126] According to some embodiments is provided a special simultaneous cooperation system that results in a suspended ceiling that is ready for installation without the need for either filling or plastering and which is mounted from above.

[0127] According to some embodiments is provided a profiled lightweight beam whose flanges cooperate mechanically with an edge beam.

[0128] According to some embodiments is provided an edge beam of glulam with recesses corresponding to the footprint and depth of the free flange ends of the profiled lightweight beam, which constitutes a load-bearing building part that cooperates mechanically with the lightweight beams that are part of the system.

[0129] According to some embodiments is provided an element produced by completing a bent Plywood board on its highest convex part with two crown beams intended for linear distribution of pressure from below the Plywood board (against its concavity)

[0130] According to some embodiments is provided an element consisting of vertical spacers screwed together against two parallel beams as together and simultaneously distributes the pressure from the floor down to the light beams and the pressure from the linearly distributed pressure against the crown beams and upwards towards the floor.

[0131] According to some embodiments is provide an ergonomic mounting system that can be built from above using scaffolding and/or sky lift and also with support from the spacers/work floors.

[0132] According to some embodiments is provided a fire-proof and sound-absorbing simultaneous cooperation joists and false ceiling of light wooden elements.

[0133] According to some embodiments is provided a fire-proof and sound-absorbing joist floor as during assembly results in a simultaneous ceiling characterized by its shape as being vaulted. The invention also relates to an ergonomic mounting method for its construction. The collaboration beam achieves fire protection through a mechanical interaction that distributes the pressure that arises from below at fire upwards through various structural connections.

[0134] Put differently, according to some embodiment the cover panel is of the same material as the bent panels and the method may further comprise providing a fireproof sealing of the interface in between the cover panel and the respective bent panels.

[0135] The desired level of sound absorption may be achieved by adjusting the vault height.

[0136] The collaborating joist and suspended ceiling system can be used for horizontal division of rooms in, for example, a two-story house or as a ceiling in e.g. halls and building entrances. It can be advantageously used in larger buildings to save working time.

[0137] The person skilled in the art realizes that the present disclosure is not limited to the preferred embodiments described above. The person skilled in the art further realizes that modifications and variations are possible within the scope of the appended claims. For example. Additionally, variations to the disclosed embodiments can be understood and effected by the skilled person in practicing the claimed disclosure, from a study of the drawings, the disclosure, and the appended claims.