A large-span steel structure platform

Abstract

The utility model relates to the technical field of architectural design, and specifically discloses a large-span steel structure cantilever, including a cantilever structure and a basic support structure arranged at the bottom of the cantilever structure; the cantilever structure includes a cantilever main span, and side spans arranged at both ends of the cantilever main span and connected to the cantilever main span, and two groups of side spans and the cantilever main span are connected to form a three-span curved continuous beam structure. The utility model transforms the cantilever beam consolidation system formed by the cantilever in the prior art into a three-span curved continuous beam system through the continuity of the two groups of side spans and the cantilever main span, so that the temperature force can be effectively released and the force is more reasonable; the generated bending moment is balanced by the deadweight of the side span and the counterweight; the cantilever span is no longer limited, which is more beneficial to the large-span cantilever, and the larger the span.

Description

Technical Field

[0001] The utility model relates to the technical field of architectural design, and more specifically, to a large-span steel structure cantilever. Background Art

[0002] The common practice for existing landscape platforms is to fix the roots to the foundation, set up a steel-concrete joint section, and use the foundation to bear the bending moment and temperature force of the platform;

[0003] The above method has the following problems:

[0004] The loads generated by the deadweight, live load and temperature force of the cantilever are all borne by the foundation and the steel-concrete joint section;

[0005] The larger the cantilever span, the higher the bearing capacity requirements of the foundation and the steel-concrete joint section, which leads to an increase in the foundation size and cost. In addition, due to the bearing capacity of materials such as steel and concrete, the cantilever span is limited. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a large-span steel structure platform.

[0007] The solution adopted by the utility model to solve the technical problem is:

[0008] A large-span steel structure cantilever comprises a cantilever structure and a basic supporting structure arranged at the bottom of the cantilever structure; the cantilever structure comprises a cantilever main span and side spans arranged at both ends of the cantilever main span and connected to the cantilever main span, and two groups of side spans and the cantilever main span are connected to form a three-span curved continuous beam structure.

[0009] In some possible implementations, the two groups of side spans are symmetrically arranged.

[0010] In some possible embodiments, the foundation support structure includes an abutment disposed at the side span away from one end of the cantilevered main span and located at the bottom of the side span, a pier disposed at the bottom of the connection between the cantilevered main span and the side span, and supports disposed on the abutment and the pier respectively.

[0011] In some possible implementations, the cantilevered main span and side span are both arc-shaped structures.

[0012] In some possible implementations, the length of the side span is d, the length of the cantilevered main span is D, and 0.2D<d<0.5D.

[0013] In some possible implementations, the cantilevered main span and side span are both steel box girder structures.

[0014] In some possible implementations, the steel box girder structure of the side span is filled with concrete.

[0015] In some possible implementations, the bearing is any one of a plate-type rubber bearing, a pot-type rubber bearing, and a spherical steel bearing.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model connects two sets of side spans to the two ends of the cantilever main span respectively, transforming the cantilever pier beam consolidation system formed by the cantilever platform in the prior art into a three-span curved continuous beam system, so that the temperature force can be released through the support, and the force is more reasonable;

[0018] The utility model sets two sets of side spans so that the bending moment generated is balanced by the deadweight of the side spans, which greatly reduces the foundation size and reduces the construction cost. Through the transformation of the structural system, the span of the platform is no longer limited, which is more beneficial to the large-span platform. The larger the span, the higher the cost performance.

[0019] The utility model reduces the length of the side span and reduces the cost by filling the side span with concrete as a counterweight, making the structure more reasonable.

[0020] The utility model has the advantages of simple structure and strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a bottom view of the utility model;

[0022] Figure 2 It is an elevation view of the utility model;

[0023] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0024] Figure 4 for Figure 2 The enlarged view of point B in the middle;

[0025] Among them: 1. Cantilevered main span; 2. Side span; 3. Foundation support structure; 31. Abutment; 32. Pier; 33. Support. DETAILED DESCRIPTION

[0026] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. The "first", "second" and similar words mentioned in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "one" and other similar words do not indicate a quantity limit, but indicate the existence of at least one. In the implementation of this application, "and / or" describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and / or B can indicate: A exists alone, A and B exist at the same time, and B exists alone. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" refers to two or more. For example, multiple positioning columns refer to two or more positioning columns. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0027] The utility model is described in detail below.

[0028] like Figure 1-Figure 2 As shown:

[0029] A large-span steel structure platform comprises a cantilever structure and a basic support structure 3 arranged at the bottom of the cantilever structure; the basic support structure 3 is arranged at the bottom of the cantilever structure to release the generated temperature force, so that the overall platform is more reasonably stressed;

[0030] The cantilever structure includes a cantilever main span 1 and side spans 2 whose two ends are arranged at both ends of the cantilever main span 1 and connected to the cantilever main span 1. Two groups of side spans 2 and the cantilever main span 1 are connected to form a three-span curved continuous beam structure.

[0031] In some possible implementations, the two groups of side spans 2 are symmetrically arranged.

[0032] In some possible implementations, the basic support structure 3 includes an abutment 31 disposed at one end of the side span 2 away from the cantilevered main span 1 and located at the bottom of the side span 2, a pier 32 disposed at the bottom of the connection between the cantilevered main span 1 and the side span 2, and bearings 33 disposed on the abutment 31 and the pier 32 respectively;

[0033] The bottoms of the abutment 31 and the pier 32 extend into the ground and mainly play a supporting role; the bearings 33 are respectively installed on the tops of the abutment 31 and the pier 32;

[0034] Compared with the existing technology in which the beam and the foundation are fixed, when the span is large, the thrust on the foundation is very large due to the large temperature force. The utility model provides supports 33 on the abutment 31 and the pier 32 respectively, and releases the temperature force by providing the supports 33, thereby reducing the thrust of the pier 32 and the abutment 31.

[0035] By setting the side span 2, the bending moment of the cantilevered main span 1 is effectively balanced, and the overturning of the overall structure under the bending moment of the deadweight, i.e. the load, in the mid-span is effectively avoided;

[0036] In some possible implementations, the cantilevered main span 1 and the side span 2 are both arc-shaped structures.

[0037] In some possible implementations, the length of the side span 2 is d, the length of the cantilevered main span 1 is D, and 0.2D<d<0.5D.

[0038] In some possible implementations, the cantilevered main span 1 and the side span 2 are both steel box girder structures; both ends of the cantilevered main span 1 are respectively connected to the side span 2 to form a whole;

[0039] In some possible implementations, the steel box girder structure of the side span 2 is filled with concrete.

[0040] By filling concrete to increase the counterweight of side span 2, the length of side span 2 is effectively reduced, the cost is reduced, and the structure is made more reasonable;

[0041] In some possible implementations, the support is any one of a plate-type rubber support, a pot-type rubber support, and a spherical steel support;

[0042] Plate-type rubber bearings, pot-type rubber bearings, and spherical steel bearings are existing technologies, and finished products can be purchased directly on the market for installation; their internal structures will not be described in detail here;

[0043] Specifically, each set of abutments 31 and piers 32 includes at least one set of supports 33 ; the supports 33 may be arranged according to usage requirements;

[0044] Furthermore, landscape plants may be planted on the ground corresponding to side span 2.

[0045] The present invention is not limited to the above-mentioned specific implementation modes, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A large-span steel structure platform, characterized in that: It includes a cantilever structure and a basic supporting structure arranged at the bottom of the cantilever structure; the cantilever structure includes a cantilever main span and side spans arranged at both ends of the cantilever main span and connected to the cantilever main span, and two groups of side spans and the cantilever main span are connected to form a three-span curved continuous beam structure; the cantilever main span and the side span are both arc structures; the length of the side span is d, and the length of the cantilever main span is D, 0.2D<d<0.5D.

2. The large-span steel structure cantilever according to claim 1, characterized in that: The two groups of side spans are symmetrically arranged.

3. The large-span steel structure cantilever according to claim 2, characterized in that: The basic support structure includes an abutment arranged at the side span away from one end of the cantilevered main span and located at the bottom of the side span, a pier arranged at the bottom of the connection between the cantilevered main span and the side span, and supports respectively arranged on the abutment and the pier.

4. The large-span steel structure cantilever according to claim 1, characterized in that: The cantilevered main span and side span are both steel box girder structures.

5. The large-span steel structure cantilever according to claim 1, characterized in that: The steel box girder structure of the side span is filled with concrete.

6. The large-span steel structure cantilever according to claim 3, characterized in that: The bearing is any one of a plate-type rubber bearing, a pot-type rubber bearing, and a spherical steel bearing.

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