CN221298186U - Stress structure of large-span heavy roof - Google Patents

Abstract

The application provides a stress structure of a large-span heavy roof, which comprises a frame, a plurality of plane trusses, a longitudinal reinforcing component and a transverse reinforcing component, wherein two ends of the plane trusses along a first direction are respectively connected with two opposite side edges of the frame, and the plane trusses are arranged at intervals along a second direction; the longitudinal reinforcement assembly comprises a longitudinal upper chord member and a longitudinal lower chord member, the longitudinal upper chord member and the longitudinal lower chord member are respectively arranged at two sides of the plane truss along the third direction, and two ends of the longitudinal upper chord member and the longitudinal lower chord member are respectively connected with two plane trusses positioned at two ends of the second direction; the transverse reinforcing components are arranged between at least two adjacent plane trusses; the first direction, the second direction and the third direction are perpendicular to each other. Therefore, the application solves the problem of larger steel consumption in the construction of the stress structure of the existing large-span heavy roof.

Description

Stress structure of large-span heavy roof

Technical Field

The utility model relates to the technical field of buildings, in particular to a stress structure of a large-span heavy roof.

Background

The main factory building of the thermal power plant is a main factory building of core equipment of the power plant, has high space requirement and large factory building span. The design of the roof construction is very important. At present, the drainage type of the roof of the large-span thermal power generation main plant is mainly divided into two types, one type is a light roof, the whole weight is lighter, and purlines and profiled steel sheets are adopted above a main bearing structure of the roof. The other is a heavy roof, the whole weight is heavy, the load is large, and a cast-in-situ concrete slab with purlines and a profiled steel sheet bottom die is adopted above a main bearing structure of the roof. The areas with large drainage, lighting, ventilation, water resistance and wind load of the integrated building are more heavy roofs in coastal power plants and areas with large wind pressure. For a conventional large-span (about 30-45 m) roof structure of a main factory building, a main stress structure of a light roof can adopt a plane truss and a space triangular truss; the heavy roof has larger load, and the main stress structure adopts a space triangular truss. The space triangular truss has the advantages of high bearing capacity, high rigidity, large steel consumption, uneconomical operation and the like, and is suitable for a large-span and large-load heavy roof. In summary, the construction of the stress structure of the existing large-span heavy roof has the problem of larger steel consumption.

Disclosure of utility model

The application provides a stress structure of a large-span heavy roof, and aims to solve the problem of large steel consumption in the construction of the stress structure of the large-span heavy roof in the prior art.

In order to solve the problems, the application provides a stress structure of a large-span heavy roof, which comprises a frame, a plurality of plane trusses, a longitudinal reinforcing component and a transverse reinforcing component, wherein two ends of the plane trusses along a first direction are respectively connected with two opposite side edges of the frame, and the plane trusses are arranged at intervals along a second direction; the longitudinal reinforcement assembly comprises a longitudinal upper chord member and a longitudinal lower chord member, the longitudinal upper chord member and the longitudinal lower chord member are respectively arranged at two sides of the plane truss along the third direction, and two ends of the longitudinal upper chord member and the longitudinal lower chord member are respectively connected with two plane trusses positioned at two ends of the second direction; the transverse reinforcing components are arranged between at least two adjacent plane trusses; the first direction, the second direction and the third direction are perpendicular to each other.

In an embodiment, the stress structure of the large-span heavy roof comprises a plurality of transverse reinforcing components, wherein the transverse reinforcing components are arranged between the frame and the plane trusses and between the two plane trusses positioned at two ends in the second direction, so that the transverse reinforcing components form an annular reinforcing structure together.

In an embodiment, the transverse reinforcement component comprises two transverse diagonal rods, and the two transverse diagonal rods are arranged in a crossing manner and are respectively connected with the two plane trusses.

In one embodiment, the load bearing structure of the large span heavy duty roof includes a plurality of the longitudinal reinforcing members spaced apart along a first direction.

In an embodiment, the longitudinal reinforcement assembly further includes a longitudinal diagonal member disposed between the upper longitudinal chord and the lower longitudinal chord and between the planar truss and the planar truss adjacent to the planar truss at both ends in the second direction.

In an embodiment, the longitudinal diagonal rods are obliquely arranged along the third direction, and one ends of the longitudinal diagonal rods are connected with each other to form a triangular broken line structure.

In an embodiment, the stress structure of the large-span heavy roof further comprises a plurality of frame columns, the frame columns are arranged below the frame at intervals along the circumferential direction of the frame and extend upwards to the frame, and two ends of the plane truss along the first direction are respectively connected with two frame columns positioned at two ends of the plane truss along the first direction.

In an embodiment, the longitudinal upper chord extends to the frame post along both ends of the second direction.

In an embodiment, the planar truss includes a planar upper chord member, a planar lower chord member, and planar diagonal web members, where the planar upper chord member and the planar lower chord member are disposed at intervals along a third direction, and the planar diagonal web members are disposed between the planar upper chord member and the planar lower chord member.

In an embodiment, the longitudinal upper chord member and the longitudinal lower chord member are respectively connected with the plane upper chord member and the plane lower chord member to form a connection node, the connection node is connected with the plane diagonal web member, and a reinforcing structure is arranged at the connection node.

The embodiment of the utility model has the following technical effects: the plane truss, the transverse reinforcing component and the longitudinal reinforcing component are adopted to replace the space truss, so that the steel consumption and the connecting nodes are obviously reduced. Therefore, the utility model solves the problem of larger steel consumption in the construction of the stress structure of the existing large-span heavy roof.

Drawings

FIG. 1 is a schematic structural view of a load bearing structure of a large span heavy duty roof according to an embodiment of the present utility model;

FIG. 2 is a top view of the load bearing structure of the large span heavy roofing of FIG. 1;

FIG. 3 is a schematic view of the structure of the planar truss of FIG. 1;

fig. 4 is a schematic view of the structure of the longitudinal reinforcement assembly of fig. 1.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "transverse", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in a specific direction based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present utility model, and do not indicate that the apparatus or element referred to must have a specific direction, and thus should not be construed as limiting the present utility model.

Referring to fig. 1, the present application provides a stress structure 100 of a large-span heavy roof, which includes a frame 40, a plurality of plane trusses 10, a longitudinal reinforcement assembly 20, and a transverse reinforcement assembly 30, wherein two ends of the plane trusses 10 along a first direction are respectively connected with two opposite sides of the frame 40, and the plane trusses 10 are arranged at intervals along a second direction; the longitudinal reinforcement assembly 20, the longitudinal reinforcement assembly 20 includes a longitudinal upper chord member 21 and a longitudinal lower chord member 22, the longitudinal upper chord member 21 and the longitudinal lower chord member 22 are respectively disposed at two sides of the planar truss 10 along the third direction, and two ends of the longitudinal upper chord member 21 and the longitudinal lower chord member 22 are respectively connected with two planar trusses 10 located at two ends of the second direction; the transverse reinforcement assemblies 30 are arranged between at least two adjacent plane trusses 10; the first direction, the second direction and the third direction are perpendicular to each other.

The existing stress structure 100 of the large-span heavy roof mainly adopts a space triangular truss, and the space triangular truss has high bearing capacity and high rigidity, and is suitable for the large-span and heavy-load heavy roof, but has the following defects: first, the steel consumption is large and uneconomical. Compared with a plane triangular truss, the space triangular truss has one more upper chord member and one more half of inclined web members for each truss, and the upper chord horizontal support is added. Furthermore, the main framework is provided with corresponding space triangular waist trusses outside the plane, and the steel consumption is further increased. And the more components that above-mentioned two items set up bring for processing, assemble, construction welding degree of difficulty increases. When the space triangular truss is at most, one node is connected with six rods, welding seams are overlapped, so that welding is difficult, and quality is difficult to guarantee. And the space truss is difficult to hoist on site. After the main truss is hoisted, the side truss and the waist truss are hoisted in the air to be welded, so that the number of the joints to be assembled is large, and the difficulty is high. Furthermore, the number of components is large, the period of purchasing, processing, assembling and construction is relatively long, and the cost is high. The number of the components is increased, the surface area is large, the fireproof and anticorrosion areas are correspondingly increased, and the anticorrosion and fireproof painting cost is increased.

The application mainly solves the following problems: and when the load is larger and heavier, the engineering quantity is increased, the member processing precision is high, and the splicing, hoisting and welding are difficult due to the adoption of the space triangular pipe truss. Under the condition of the same large span and heavy roof, the plane truss 10 is adopted as a main body, the longitudinal reinforcing component 20 and the transverse reinforcing component 30 are added to increase the structural strength, the bearing capacity requirement can be met, the steel consumption can be reduced, the number of splicing, hoisting and welding seams is reduced, the construction period is effectively shortened, and the manufacturing cost is reduced.

Referring to fig. 2, in an embodiment, the load-bearing structure 100 of the large-span heavy roof includes a plurality of the transverse reinforcement assemblies 30, and the plurality of transverse reinforcement assemblies 30 are disposed between the frame 40 and the planar truss 10, and between two planar trusses 10 located at two ends in the second direction, so that the plurality of transverse reinforcement assemblies 30 together form an annular reinforcement structure.

In particular, the annular reinforcing structure can reduce the number of truss members while maintaining the strength of the stressed structure 100 of a large span heavy roof. Through calculation, the steel consumption of the equal large-span heavy roof can be reduced by about 10% -20%, and the material cost is remarkably saved. And the planar truss 10 can reduce the difficulty of lifting compared with the space truss. The main truss members are reduced, the weight is reduced, the hoisting is easy, the high-altitude welding or installation difficulty is reduced, and the construction is easy.

Referring to fig. 2, in one embodiment, the transverse reinforcement assembly 30 includes two transverse diagonal rods 31, and the two transverse diagonal rods 31 are disposed to intersect and respectively connect the two planar trusses 10.

The reinforced structure is arranged in a crossing manner in the building construction process, so that the construction efficiency can be improved, the cost can be reduced, the engineering quality can be improved, the safety of the structure can be enhanced, the service life of a building can be prolonged, and the like. Specifically, the structure is crossed, so that the problems of deformation, cracking and the like of the building in the using process can be reduced, and the service life of the building is prolonged.

Referring to fig. 1 and 4, in one embodiment, the load bearing structure 100 of the large span heavy roof includes a plurality of the longitudinal reinforcing members 20, and the plurality of longitudinal reinforcing members 20 are spaced apart along the first direction. Alternatively, the load bearing structure 100 of the large span heavy roof includes two longitudinal reinforcement assemblies 20, and the two longitudinal reinforcement assemblies 20 are spaced apart along the first direction. Further, two of the longitudinal reinforcing members 20 divide the frame 40 in the first direction to form three voids which are relatively uniform. By the arrangement, the balance of the stress structure 100 of the large-span heavy roof can be increased, and the service life of the structure can be prolonged.

Referring to fig. 4, in an embodiment, the longitudinal reinforcement assembly 20 further includes a longitudinal diagonal 23, and the longitudinal diagonal 23 is disposed between the upper longitudinal chord 21 and the lower longitudinal chord 22 and between the planar truss 10 and the planar truss 10 adjacent to the planar truss 10 at both ends in the second direction.

The arrangement of the longitudinal diagonal member 23 can effectively improve the structural strength, prevent the deformation of the longitudinal upper chord member 21 and the longitudinal lower chord member 22, improve the rigidity and stability of the structure, enhance the connection stability and prolong the service life of the structure. Specifically, the inclined rod can form a stable triangle structure with the cross rod, so that deformation of the cross rod caused by overlarge stress is reduced, and the precision and the usability of the structure are improved. This is important to ensure the safety, stability and reliability of the building.

Referring to fig. 4, in an embodiment, the longitudinal diagonal rods 23 are disposed obliquely along a third direction, and one ends of a plurality of the longitudinal diagonal rods 23 are connected to each other to form a triangular fold line structure. The triangular fold line structure can effectively disperse stress to a plurality of nodes, so that the strength and stability of the structure are improved, and the bearing capacity of the structure is enhanced.

Referring to fig. 1, in an embodiment, the stress structure 100 of the large-span heavy roof further includes a plurality of frame columns 41, the plurality of frame columns 41 are disposed below the frame 40 at intervals along the circumferential direction of the frame 40, and extend upward to the frame 40, and two ends of the planar truss 10 along the first direction are respectively connected to two frame columns 41 located at two ends of the first direction. The provision of the frame posts 41 provides mounting locations for the planar truss 10. And the arrangement of a plurality of frame posts 41 can realize effective support to the heavy roofing of large-span, has increased structural stability, prolongs its life.

Referring to fig. 1, in one embodiment, the two ends of the longitudinal upper chord 21 along the second direction extend to the frame posts 41. Alternatively, the purlin steel of the heavy roof, that is, the original structure of the heavy roof is used instead of the longitudinal upper chord 21. By this arrangement, the number of components and the amount of steel used can be further reduced.

Referring to fig. 3, in an embodiment, the planar truss 10 includes a planar upper chord 11, a planar lower chord 12, and planar diagonal web members 13, where the planar upper chord 11 and the planar lower chord 12 are spaced apart along a third direction, and the planar diagonal web members 13 are disposed between the planar upper chord 11 and the planar lower chord 12. In particular, all the bars of the planar truss 10 are in the same plane, so that the structure is relatively simple and easy to manufacture and install. Moreover, the planar truss 10 is relatively convenient to construct due to its simple structure, and can be installed in various manners, such as direct penetration, welding, etc. Therefore, the planar truss 10 has the advantages of simple structure, convenient construction, light weight, high rigidity and wide application, and can adapt to the requirements of different buildings.

Referring to fig. 1, in an embodiment, the upper longitudinal chord 21 and the lower longitudinal chord 22 are respectively connected with the upper planar chord 11 and the lower planar chord 12 to form a connection node, the connection node is connected with the inclined planar web member 13, and a reinforcing structure is disposed at the connection node.

The nodes connected with the rod bodies are called intersecting nodes, and compared with the space truss, the embodiment of the application obviously reduces the calculation difficulty of the bearing capacity of the intersecting nodes and reduces the attenuation degree of the main rod at the intersecting nodes. Specifically, under the heavy roof conditions with the same span and the same load, each main truss of the space triangular truss has more truss stress members, and the axial force of each stress member is smaller; and each planar truss 10 has fewer stress members and each stress member has larger axial force. On the premise of meeting the load bearing of the rod pieces, the axial force of the plane diagonal web members 13, particularly the plane diagonal web members 13 at the two end parts of the plane truss 10, is large. The plane diagonal web member 13 intersects the plane bottom chord member 12, and the load bearing capacity of the intersecting point is high. The bearing capacity of the node to be checked meets the standard, or the upper chord and the lower chord at the intersecting node can be locally reinforced.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.

Claims (10)

1. A load bearing structure for a large span heavy duty roof, comprising:

A frame;

The two ends of the plane trusses along the first direction are respectively connected with two opposite side edges of the frame, and the plane trusses are arranged at intervals along the second direction;

The longitudinal reinforcement assembly comprises a longitudinal upper chord member and a longitudinal lower chord member, the longitudinal upper chord member and the longitudinal lower chord member are respectively arranged at two sides of the plane truss along the third direction, and two ends of the longitudinal upper chord member and the longitudinal lower chord member are respectively connected with two plane trusses positioned at two ends of the second direction;

The transverse reinforcing components are arranged between at least two adjacent plane trusses;

The first direction, the second direction and the third direction are perpendicular to each other.

2. The load bearing structure of a large span heavy duty roof according to claim 1, wherein said load bearing structure of a large span heavy duty roof comprises a plurality of said transverse reinforcement members disposed between said frame and said planar truss and between two of said planar trusses at opposite ends in a second direction such that said plurality of transverse reinforcement members together form an annular reinforcement structure.

3. The load-bearing structure of a large span heavy duty roof as recited in claim 2, wherein said transverse reinforcement assembly comprises two of said transverse diagonal members disposed crosswise and respectively connected to two of said planar trusses.

4. The load bearing structure of a large span heavy duty roof of claim 1, wherein said load bearing structure of a large span heavy duty roof comprises a plurality of said longitudinal reinforcement assemblies, a plurality of said longitudinal reinforcement assemblies being spaced apart along a first direction.

5. The load-bearing structure of a large span heavy duty roof of claim 4, wherein said longitudinal reinforcement assembly further comprises a longitudinal diagonal disposed between said longitudinal upper chord and said longitudinal lower chord and between said planar trusses at both ends in the second direction and said planar trusses adjacent to said planar trusses.

6. The load-bearing structure of the large-span heavy roof according to claim 5, wherein the longitudinal diagonal bars are arranged obliquely along a third direction, and one ends of a plurality of the longitudinal diagonal bars are connected with each other to form a triangular fold line structure.

7. The load-bearing structure of a large-span heavy roof according to claim 1, further comprising a plurality of frame posts, wherein the plurality of frame posts are disposed below the frame at intervals along the circumferential direction of the frame and extend upward to the frame, and two ends of the planar truss along a first direction are respectively connected to two frame posts at two ends of the planar truss along the first direction.

8. The load bearing structure of the large span heavy duty roof of claim 7, wherein said longitudinal upper chords extend to said frame posts along both ends in the second direction.

9. The heavy roofing of claim 1, wherein the planar truss comprises a planar upper chord, a planar lower chord, and planar diagonal web members, the planar upper chord and the planar lower chord being spaced apart along a third direction, the planar diagonal web members being disposed between the planar upper chord and the planar lower chord.

10. The heavy roofing stress structure of claim 9, wherein the longitudinal upper chord and the longitudinal lower chord are respectively connected with the planar upper chord and the planar lower chord to form a connection node, the connection node is connected with the planar diagonal web member, and a reinforcing structure is arranged at the connection node.