CN218713937U

CN218713937U - Large-span large-cantilever box system

Info

Publication number: CN218713937U
Application number: CN202222593423.1U
Authority: CN
Inventors: 肖阳; 张月强; 张峥
Original assignee: Architecture Design and Research Institute of Tongji University Group Co Ltd
Current assignee: Architecture Design and Research Institute of Tongji University Group Co Ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-03-24
Anticipated expiration: 2032-09-29

Abstract

The utility model relates to a large-span large-cantilever box system, including a core section of thick bamboo and box structure, the quantity of a core section of thick bamboo is two at least, the box structure is including the truss roofing that is located box structure top, the truss floor that is located the box structure bottom and the open-web truss that is located box structure both sides, truss roofing and truss floor are fixed on a core section of thick bamboo, truss roofing is connected to open-web truss's one end, and truss floor is connected to the other end. Compared with the prior art, the utility model has the advantages of atress and deformability are strong, economic nature is high.

Description

Large-span large-cantilever box system

Technical Field

The utility model belongs to the technical field of the building element technique and specifically relates to a box system of encorbelmenting greatly of large-span is related to.

Background

In engineering design, large-span large-cantilever building structures are more and more widely applied, and are particularly prominent in the aspects of sports buildings, cultural buildings and the like. In the design process, architects continuously innovate in shape and space, and often need to make a large area of the first floor overhead, so that the open shared space of the atmosphere among the bottom layer of the building, peripheral roads and supporting facilities is realized, and meanwhile, the visual connection between a traffic road and supporting greening is also established, which brings great difficulty and challenge to the design of the building structure. Aiming at the requirement of large-area overhead of the first floor of the building, a large number of vertical members cannot fall to the ground, so that the vertical load is not directly transferred, and the span and the overhanging length of the structure are further increased.

For example, chinese patent CN111236434B discloses a through-layer overhanging dense column truss system for large-span large-overhanging high-position conversion and its application, which includes a longitudinal large-span truss part, a transverse overhanging truss part, two-end leg base parts, and an upper structure part. The longitudinal large-span truss part consists of a longitudinal middle-roof double-layer dense-column truss and a longitudinal side-roof single-layer plane truss; the transverse cantilever truss part consists of a plurality of transverse cross-layer oblique supporting cantilever trusses, is orthogonal to the longitudinal large-span truss part and jointly forms a central supporting framework; the two-end supporting leg base part comprises an overhanging end inclined column frame core barrel and a landing end frame core barrel; the superstructure section is located above the truss system.

The horizontal stressed member in the prior art usually needs to have enough span-height ratio to meet the requirements of structural deformation and stress, so that the use height of the building is greatly influenced, the building looks too thick and heavy, the steel consumption of the structure is increased, and the economy of the building is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the atress component that above-mentioned prior art exists and for satisfying the deformation and the atress demand of structure, need have sufficient height ratio of striding, and lead to the building to seem too massive, and increased the steel consumption, influenced the economic nature of building defect and provide a large-span box system of encorbelmenting greatly.

The purpose of the utility model can be realized through the following technical scheme:

the utility model provides a large-span large-cantilever box system, includes a core section of thick bamboo and box structure, the quantity of a core section of thick bamboo is two at least, box structure is including the truss roofing that is located the box structure top, the truss floor that is located the box structure bottom and the empty stomach truss that is located box structure both sides, truss roofing and truss floor are fixed on a core section of thick bamboo, truss roofing is connected to the one end of empty stomach truss, and truss floor is connected to the other end.

Preferably, the truss roof includes roofing main truss, roofing secondary truss, roofing banding truss, roofing secondary beam and roofing concrete floor, roofing main truss is connected to the core section of thick bamboo, roofing secondary truss connects roofing main truss perpendicularly, be equipped with roofing secondary beam in the district check that roofing main truss, roofing secondary truss and roofing banding truss formed, roofing concrete floor is located the upper surface of truss roof.

Preferably, the roof main truss, the roof secondary truss and the roof edge sealing truss are all plane trusses.

Preferably, the truss floor comprises a floor main truss, a floor secondary truss, a floor edge sealing beam, a floor secondary beam and a floor concrete floor slab, the core cylinder is connected with the floor main truss, the floor secondary truss is vertically connected with the floor main truss, the floor secondary beam is arranged in a region lattice formed by the floor main truss, the floor secondary truss and the floor edge sealing beam, and the floor concrete floor slab is located on the upper surface of the truss floor.

Preferably, the box structure further comprises a stay cable, one end of the stay cable is connected with the top of the core barrel, and the other end of the stay cable is connected with the end part of the floor main truss.

Preferably, the floor main truss and the floor secondary truss are both plane trusses.

Preferably, the end surface of the floor main truss is trapezoidal.

Preferably, the floor primary truss and the floor secondary truss are connected with the floor edge sealing beam in a high degree.

Preferably, the core barrel comprises a plurality of frame columns and a support frame, the frame columns are vertically fixed on the ground, and the support frame is connected with the frame columns.

Preferably, the end of the box structure is provided with a protruding corbel, and the protruding corbel is connected with an adjacent building.

Compared with the prior art, the utility model has the advantages of it is following:

(1) According to the scheme, the components except the core cylinder form a commonly stressed box body structure, so that the integral rigidity of the structure is increased, and the stress and deformation capacity of the structure are improved; because the high efficiency of space box structure atress, the span height ratio of box top roofing truss and bottom half floor truss can be done is bigger, has reduced the influence of structure to the use height of building, has reduced the holistic steel volume of using of structure simultaneously, and overall structure is economical reasonable.

(2) This scheme is through setting up the suspension cable between a core section of thick bamboo and box, and the suspension cable atress is direct, and is long and thin penetrating, can satisfy the building function demand.

(3) In the scheme, the web members of the hollow trusses on the two sides of the box body are matched with the building vertical face curtain wall in a split mode, and the integration of a building and a structure can be achieved.

(4) In the scheme, the end part of the box body structure extends out of the bracket to be connected with an adjacent building, so that the building functions can be combined with each other.

Drawings

Fig. 1 is a schematic structural diagram of a large-span large-cantilever box system provided by an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a large-span large-cantilever box system provided in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a truss roof on the top of the box body according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a truss floor at the bottom of the box body according to an embodiment of the present invention;

fig. 5 is a schematic structural view of the web members of the hollow truss on two sides of the box according to the embodiment of the present invention;

in the figure: 1. the roof truss structure comprises a core barrel, 2, a box body structure, 3, a truss roof, 4, a truss floor, 5, a hollow truss, 6, stay cables, 7, a roof main truss, 8, a roof secondary truss, 9, a roof edge sealing truss, 10, a roof secondary beam, 11, a roof concrete floor slab, 12, a floor main truss, 13, a floor secondary truss, 14, a floor edge sealing beam, 15, a floor secondary beam, 16, a floor concrete floor slab, 17 and a bracket.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

Example 1

As shown in fig. 1 to 5, a large-span large-cantilever box system includes core cylinders 1 and box structures 2, the number of the core cylinders 1 is at least two, the box structures 2 include truss roofs 3 located at the tops of the box structures 2, truss floors 4 located at the bottoms of the box structures 2, and open web trusses 5 located at both sides of the box structures 2, the truss roofs 3 and the truss floors 4 are fixed on the core cylinders 1, one ends of the open web trusses 5 are connected to the truss roofs 3, and the other ends are connected to the truss floors 4.

In the embodiment, the height of the hollow truss 5 on two sides of the box body is 12-18 m, the distance between the vertical web members of the hollow truss is 2.8m, and the distance between the horizontal rods is 4.2-4.5 m.

As shown in fig. 3, the truss roof 3 includes a main roof truss 7, a secondary roof truss 8, a sealed roof truss 9, a secondary roof beam 10 and a concrete roof slab 11, the core tube 1 is connected to the main roof truss 7, the secondary roof truss 8 is vertically connected to the main roof truss 7, the secondary roof beam 10 is arranged in a grid formed by the main roof truss 7, the secondary roof truss 8 and the sealed roof truss 9, and the concrete roof slab 11 is located on the upper surface of the truss roof 3.

The main roof truss 7, the secondary roof truss 8 and the edge-sealed roof truss 9 are all plane trusses.

In this embodiment, the roof main truss 7, the roof secondary truss 8 and the roof edge-sealed truss 9 are all 4m high, the distance between the trusses is 8.4m, and the distance between the roof secondary girders 10 is 2.8m. The maximum span of the roof truss is 70m, and the maximum overhanging length is 15m.

As shown in fig. 4, the truss floor 4 includes a floor main truss 12, a floor sub-truss 13, a floor edge sealing beam 14, a floor sub-beam 15 and a floor concrete floor 16, the core tube 1 is connected with the floor main truss 12, the floor sub-truss 13 is vertically connected with the floor main truss 12, the floor sub-beam 15 is arranged in a cell formed by the floor main truss 12, the floor sub-truss 13 and the floor edge sealing beam 14, and the floor concrete floor 16 is located on the upper surface of the truss floor 4.

In this embodiment, the floor main trusses 12 and the floor secondary trusses 13 are both 4m high, the distance between the trusses is 8.4m, and the distance between the floor secondary beams 15 is 2.8m. The maximum span of the floor truss is 70m, and the maximum overhanging length is 15m.

The box body structure 2 further comprises a stay cable 6, one end of the stay cable 6 is connected with the top of the core barrel 1, and the other end of the stay cable 6 is connected with the end part of the floor main truss 12. In this embodiment, the stay cable 6 is a sealed cable having a diameter of 140 mm.

The floor primary truss 12 and the floor secondary truss 13 are both plane trusses. The end face of the floor main truss 12 is trapezoidal in shape.

The floor main truss 12 and the floor secondary truss 13 are connected with a floor edge sealing beam 14 at a high degree.

The core tube 1 comprises a plurality of frame columns and a support frame, the frame columns are vertically fixed on the ground, and the support frame between the columns is connected with each frame column. In this embodiment, two core cylinders 1 are provided, each of which has a size of 16.8mx16.8m and is composed of 9 frame columns and a circle of central supports on the periphery, and the net distance between the two core cylinders is 70m.

The end of the box structure 2 is provided with a protruding bracket 17, and the protruding bracket 17 is connected with adjacent buildings.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a large-span box system of encorbelmenting greatly, includes a core section of thick bamboo (1), its characterized in that, including box structure (2), the quantity of a core section of thick bamboo (1) is two at least, box structure (2) are including truss roofing (3) that are located box structure (2) top, truss floor (4) that are located box structure (2) bottom and vierendeel truss (5) that are located box structure (2) side, truss roofing (3) and truss floor (4) are fixed on a core section of thick bamboo (1), truss roofing (3) are connected to the one end of vierendeel truss (5), and truss floor (4) are connected to the other end.

2. The large-span large-cantilever box system according to claim 1, wherein the truss roof (3) comprises a main roof truss (7), a secondary roof truss (8), a sealed roof edge truss (9), a secondary roof beam (10) and a concrete roof slab (11), the core tube (1) is connected with the main roof truss (7), the secondary roof truss (8) is vertically connected with the main roof truss (7), the secondary roof beam (10) is arranged in a cell formed by the main roof truss (7), the secondary roof truss (8) and the sealed roof edge truss (9), and the concrete roof slab (11) is arranged on the upper surface of the truss roof (3).

3. The large-span large-cantilever box system according to claim 2, wherein the primary roof truss (7), the secondary roof truss (8) and the edge roof truss (9) are all plane trusses.

4. The large-span large-cantilever box system according to claim 1, wherein the truss floor (4) comprises a floor main truss (12), a floor secondary truss (13), a floor edge sealing beam (14), a floor secondary beam (15) and a floor concrete floor slab (16), the core barrel (1) is connected with the floor main truss (12), the floor secondary truss (13) is vertically connected with the floor main truss (12), the floor secondary beam (15) is arranged in a cell formed by the floor main truss (12), the floor secondary truss (13) and the floor edge sealing beam (14), and the floor concrete floor slab (16) is positioned on the upper surface of the truss floor (4).

5. A large-span large-cantilever box system according to claim 4, wherein the box structure (2) further comprises a stay cable (6), one end of the stay cable (6) is connected with the top of the core tube (1), and the other end is connected with the end of the floor main truss (12).

6. The large-span large-cantilever box system according to claim 4, wherein the floor primary truss (12) and the floor secondary truss (13) are planar trusses.

7. The large-span large-cantilever box system according to claim 4, wherein the end face of the floor main truss (12) is trapezoidal in shape.

8. The large-span large-cantilever box system according to claim 7, wherein the floor primary truss (12) and the floor secondary truss (13) are connected with the floor edge sealing beam (14) at high height.

9. The large-span large-cantilever box system according to claim 1, wherein the core barrel (1) comprises a plurality of frame columns vertically fixed on the ground and a plurality of support frames connecting each frame column.

10. A large span and large cantilever box system according to claim 1, wherein the end of the box structure (2) is provided with a protruding corbel (17), the protruding corbel (17) connecting adjacent buildings.