CN217353198U

CN217353198U - Multi-layer longitudinal and transverse superimposed box-type beam open web truss steel structure roof truss system

Info

Publication number: CN217353198U
Application number: CN202220897285.3U
Authority: CN
Inventors: 刘畅
Original assignee: Institute Of Architecture Design & Research Shenzhen University
Current assignee: Institute Of Architecture Design & Research Shenzhen University
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-09-02
Anticipated expiration: 2032-04-18

Abstract

The utility model discloses a superimposed box girder open web truss steel construction roof truss system is moved about freely and quickly to multilayer, include: the hollow trusses comprise chords arranged in parallel and connecting rods arranged between the chords, the hollow trusses are sequentially overlapped at the intersection nodes of the hollow trusses, and two adjacent hollow trusses are fixedly connected; the inner partition plates are arranged at the cross nodes of the hollow trussed beams, are vertically arranged in the hollow trussed beams and are fixedly connected with the chords, and form a multi-layer longitudinally and transversely overlapped hollow node box body together with the chords and the connecting rods. The utility model discloses, through the interior baffle of the empty stomach girder that alternately coincide set up and cross node department, form the stealthy steel column formula truss structure on an empty stomach that has great rigidity and bearing capacity, roof truss system simple structure, node and structure member are small in quantity, greatly reduced the processing and the manufacturing cost of roof truss, improved the efficiency of construction that the roof truss was built, can satisfy the molding and the atress requirement of different buildings.

Description

Multi-layer longitudinally and transversely superimposed box-type beam open-web truss steel structure roof truss system

Technical Field

The utility model relates to a house construction technical field, concretely relates to multilayer is coincide box girder open web truss steel construction roof truss system about freely and quickly.

Background

The roof truss is one of building components, is used for a truss of a roof structure, needs to bear the weight of a roof and a truss and wind load acting on an upper chord, is made of materials such as wood, steel or reinforced concrete, and has various shapes such as triangle, trapezoid, arch and the like. The traditional roof truss is generally in a multi-purpose triangle shape and consists of vertical web members and inclined web members shown by an upper chord and a lower chord, and wood roof trusses, steel roof trusses, reinforced concrete roof trusses and the like are adopted according to different materials. With the development of modern building technology, large-span structures become the fastest-developing structural types around the world today.

The structural system of common large-span steel structure roof truss has: truss structures, suspension cable structures, arch structures, grid structures, thin-wall space structures, reticulated shell structures and the like, for example, the large-span roof structure provided by the chinese patent CN108978871A includes two trusses arranged in a cross manner and upright columns connected to the ends of the trusses, and the trusses include a T-shaped beam distributed along a straight line and two L-shaped beams arranged side by side above the T-shaped beam; a plurality of upper chords are vertically arranged between the two L-shaped beams, a straight web member is respectively arranged between the two ends of each upper chord and the T-shaped beam, and the upper chords and the two corresponding straight web members form an isosceles triangle structure; the stand includes three column bases that distribute along the straight line, and the top of each column base constitutes the top surface that is equilateral triangle structure and distributes, and the bottom of each column base constitutes the bottom surface that is equilateral triangle structure and distributes, and the area of bottom surface is greater than the area of top surface. In order to show architectural culture characteristics, a large number of large-span roof structures are not treated by building suspended ceilings so as to embody the unification of building shapes and structural stress, but the shapes of the large-span roof structure systems are basically fixed, the requirements of different buildings on the shapes and the structural stress are difficult to meet, the number of roof truss structure rods and nodes is large, the manufacturing and installation are complex, the processing and production cost is high, and the building suspended ceilings are disordered when not treated, so that the building attractiveness is influenced.

In view of the above, there is a need to improve the large-span steel structure roof truss system in the prior art, so as to improve the aesthetic property of the structure, reduce the processing and production costs, and meet the requirements of different building shapes and structural stresses.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that current large-span steel construction roof truss system molding is fixed, the node is many, the production and processing expense is high, can not satisfy the problem of different buildings to the requirement of molding and structure atress.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts as follows:

a multi-layer longitudinal and transverse superimposed box-type beam open web truss steel structure roof truss system comprises:

the hollow trusses comprise two chords arranged in parallel and connecting rods arranged between the chords, the hollow trusses are sequentially overlapped at the intersection nodes of the hollow trusses, and two adjacent hollow trusses are fixedly connected;

the inner partition plate is arranged at the cross node of the hollow truss girder, is vertically arranged in the hollow truss girder and is fixedly connected with the chord member, and the inner partition plate, the chord member and the connecting rod form a multi-layer longitudinally and transversely overlapped hollow node box body.

In the foregoing scheme, preferably, the hollow trusses include a plurality of transverse hollow trusses and a plurality of longitudinal hollow trusses, the transverse hollow trusses are arranged in parallel, the longitudinal hollow trusses are arranged in parallel, and the transverse hollow trusses and the longitudinal hollow trusses are sequentially and alternately stacked.

In the above solution, preferably, each vertical sidewall of the multiple empty stomach node box bodies is respectively arranged in the same vertical plane.

In the foregoing solution, preferably, an included angle exists between the transverse hollow truss and the longitudinal hollow truss, and the roof truss system further includes:

the gap filling plate is arranged between every two adjacent hollow trusses and comprises slope plates arranged in parallel and supporting plates used for being connected with the slope plates, the angle of each slope plate is equal to the included angle between each two adjacent hollow trusses and the included angle between each two adjacent longitudinal hollow trusses, and the top surface and the bottom surface of each chord member are fixed.

In the foregoing solution, preferably, the slope plate, the supporting plate, and each vertical sidewall of the hollow node box body are respectively disposed in a same vertical plane.

In the foregoing aspect, preferably, thicknesses of the inner partition, the slope plate, and the support plate are the same as thicknesses of the chord and the link.

In the above aspect, preferably, an included angle exists between the transverse hollow truss and the longitudinal hollow truss, and two adjacent hollow trusses are welded and fixed by a fillet weld.

In the above aspect, preferably, the chord member and the connecting rod are connected by a fillet weld.

In the above scheme, preferably, the roof truss system further includes a supporting rod vertically disposed, one end of the supporting rod is fixed to the structural foundation, and the other end of the supporting rod is connected and fixed to the hollow node box.

Compared with the prior art, the utility model provides a multilayer is coincide box girder steel construction room lid system on an empty stomach with great ease, include the truss structure that many empty stomach trusses that set up by the alternately coincide constitute, constitute stealthy steel column at the inner baffle of the vertical setting of its cross section and truss, form the truss structure on an empty stomach, the truss is the crimp component, has great rigidity and bearing capacity, can adapt to the demand of large-span room lid. The roof system is similar to a multilayer tenon-and-mortise structure of a Chinese wooden building, has the charm of Chinese culture, and has good building effect and attractive appearance; the roof system has the advantages of small number of components, simple truss structure nodes and convenience in operation, and can effectively improve the construction speed of the roof and save the production and construction cost of the roof.

Drawings

FIG. 1 is a perspective view of a steel truss structure roof truss system with multi-layered longitudinally and transversely superimposed box girders;

FIG. 2 is a schematic structural view of the hollow node box of the present invention;

fig. 3 is a side view of a multi-layered longitudinally and transversely laminated box girder open web truss steel structure roof truss system according to an embodiment of the present invention;

FIG. 4 is a side view of an open web node box according to another embodiment of the present invention;

fig. 5 is a perspective view of an empty stomach node box body in another embodiment of the present invention.

The correspondence between the names and reference numbers of the components in fig. 1 to 5 is as follows:

a hollow truss girder 1, an inner baffle 2, a hollow node box body 3, a gap filling plate 4, a support rod 5,

a transverse hollow girder 11, a longitudinal hollow girder 12,

the length of the chord 101, the link 102,

a ramp plate 41 and a support plate 42.

Detailed Description

The utility model provides a multilayer is coincide box girder truss steel construction roof truss system on an empty stomach vertically and horizontally, many trusses on an empty stomach and the inner baffle that sets up in truss on an empty stomach node department that sets up through alternately coincide, form stealthy steel column structure, improved the rigidity and the load capacity of steel construction roof truss system, reduced the production and the construction cost of steel construction roof truss system, satisfy the molding and the atress requirement of different buildings. The invention is described in detail below with reference to the drawings and the detailed description.

As shown in fig. 1 and fig. 2, the utility model provides a multi-layer longitudinal and transverse superimposed box girder open web truss steel structure roof truss system, which comprises a plurality of cross-arranged open web trusses 1 and an inner separator 2 arranged at the cross node of the open web trusses 1.

The hollow truss girder 1 includes a plurality of transverse hollow truss girders 11 and a plurality of longitudinal hollow truss girders 12, the plurality of transverse hollow truss girders 11 are arranged in parallel, and the plurality of longitudinal hollow truss girders 12 are arranged in parallel. Each hollow truss 1 comprises two chords 101 and connecting rods 102, wherein the two chords 101 are arranged in parallel, the connecting rods 102 are arranged between the two chords 101 and are used for connecting the two chords 101, and the chords 101 and the connecting rods 102 are connected through fillet welds. The transverse hollow trussed beams 11 and the longitudinal hollow trussed beams 12 are sequentially and alternately overlapped, and the chords 101 at the intersection nodes of the transverse hollow trussed beams 11 and the longitudinal hollow trussed beams 12 are fixedly connected.

The inner partition 2 is arranged in the hollow truss girder 1 and is fixed with the chord 11 and the connecting rod 102. The inner partition plates 2 are vertically arranged at the crossed nodes of the hollow trussed beam 1, and form a multi-layer vertically and horizontally overlapped hollow node box body 3 with the chord members 11 and the connecting rods 102. Each vertical side wall of the multilayer hollow node box body 3 is respectively arranged in the same vertical plane, and a hidden steel column structure is formed at the cross node of the hollow truss girder 1, so that the box body has higher rigidity and bearing capacity.

The chords of the transverse and longitudinal

hollow girders

11, 12 may be arranged in parallel or inclined.

As shown in fig. 3, in an embodiment of the present invention, an included angle between the transverse hollow truss 11 and the longitudinal hollow truss 12 is smaller, and two adjacent transverse hollow trusses 11 and longitudinal hollow trusses 12 are fixed by fillet welding.

As shown in fig. 4 and 5, in another embodiment of the present invention, when the included angle between the transverse hollow truss 11 and the longitudinal hollow truss 12 is large, the transverse hollow truss 11 and the longitudinal hollow truss 12 can be connected and fixed by the gap filler 4. The gap filling plate 4 comprises a slope plate 41 and a support plate 42, the two slope plates 41 are arranged in parallel, and the angle of the slope plate 41 is equal to the included angle between the transverse hollow truss girder 11 and the longitudinal hollow truss girder 12. The supporting plate 42 is used for connecting two slope plates 41, and the chords 11 of the transverse hollow girder 11 and the longitudinal hollow girder 12 are fixed to the top and bottom surfaces of the gap filler 4. The vertical side walls of the hollow node box body 3 of the slope plate 41 and the supporting plate 42 are respectively arranged in the same vertical plane.

The roof truss system also comprises a supporting rod 5 which is vertically arranged, one end of the supporting rod 5 is fixed with the structure foundation, and the other end of the supporting rod 5 is fixedly connected with the hollow node box body 4, so that the bearing capacity of the roof truss system is further improved.

The utility model discloses a working process as follows:

the transverse hollow truss beam 11 is connected with the upper chord 101 and the lower chord 101 of the longitudinal hollow truss beam 12 through the inner partition plate 2 and the connecting rods 102, the inner partition plate 2, the connecting rods 102 and the upper chord 101 and the lower chord 101 form a plurality of hollow node box bodies 3, so that the roof truss is formed to have hidden steel columns to form a hollow truss, and the supporting rods 5 are arranged on the hollow node box bodies 3 to form a combined column formed by four box type steel columns. The space structure beam is a bending member, has large rigidity and bearing capacity, can meet the requirement of a large-span roof, and the maximum span of the roof can be close to 20 m.

Compared with the prior art, the utility model provides a coincide box girder open web truss steel construction roof truss system is moved about freely and quickly to multilayer has following advantage:

1. the structure of the roof system has ingenious conception, is similar to a multilayer tenon-and-mortise structure of a Chinese wooden building, has the charm of Chinese culture, has good aesthetic property and stress stability, and has good building effect;

2. the thicknesses of the inner partition plate, the slope plate and the supporting plate in the roof system are the same as those of the chord member and the connecting rod, so that the sections of the hollow trussed beam and the invisible steel column of the roof system are consistent, the standardization degree of the components is high, the processing is convenient, meanwhile, the stress simulation calculation of the roof system is convenient, and the design efficiency and the design precision of the roof are improved;

3. the hollow truss girder of the roof system forms a multi-layer superposed hollow node box body structure at the cross node, the integral structural rigidity of the hollow truss steel structure roof truss system is improved through the hollow node box body structure, the number of node components is small, the steel consumption of the roof system is reduced, and the manufacturing and construction cost of the roof system is reduced;

4. the structural nodes of the roof system are simple and unified, the production in a factory is facilitated, the hollow truss beams, the inner partition plates and the gap filling plates can be produced in the factory in advance, splicing is carried out on a construction site, and the construction speed is high.

The present invention is not limited to the above-mentioned best mode, and any person should learn the structural change made under the teaching of the present invention, all with the present invention has the same or similar technical solution, all fall into the protection scope of the present invention.

Claims

1. The utility model provides a multilayer is folded box girder open web truss steel construction roof truss system with great ease which characterized in that includes:

2. The truss system as claimed in claim 1, wherein the trusses include a plurality of transverse trusses and a plurality of longitudinal trusses, the transverse trusses are disposed in parallel, the longitudinal trusses are disposed in parallel, and the transverse trusses and the longitudinal trusses are alternately stacked in sequence.

3. The truss system of multi-deck longitudinally and transversely superimposed box girder open web truss steel structure roof truss as claimed in claim 2, wherein each of the vertical sidewalls of the plurality of open web node boxes are respectively disposed in the same vertical plane.

4. The truss system of multi-deck longitudinally and transversely stacked box girder open web truss steel structure as claimed in claim 3, wherein an included angle exists between the transverse open web truss girder and the longitudinal open web truss girder, the truss system further comprising:

5. The truss structure steel structure roof truss system as claimed in claim 4, wherein the sloping plate and the supporting plate are respectively disposed in the same vertical plane with each vertical side wall of the open web node box.

6. The multi-deck longitudinally and transversely overlapping box girder open web truss steel structural roof truss system as claimed in claim 5, wherein the thickness of the inner partition plate, the ramp plate and the support plate is the same as the thickness of the chord member and the connecting rod.

7. The truss structure system as claimed in claim 3, wherein an angle is formed between the transverse and longitudinal hollow trusses, and two adjacent hollow trusses are welded and fixed by fillet welds.

8. The multi-deck longitudinally and transversely overlapping box girder open web truss steel structural roof truss system as claimed in claim 1, wherein said chords and said tie rods are connected by fillet welds.

9. The truss system as defined in claim 1, wherein the truss system further includes vertically disposed support rods, one end of each of said support rods being fixed to the structural foundation and the other end thereof being connected to and fixed to said open web node box.