Large-span steel structure cantilever platform

Abstract

The invention relates to the technical field of building design, and particularly discloses a large-span steel structure cantilever platform which comprises a cantilever structure and a foundation supporting structure arranged at the bottom of the cantilever structure. The cantilever structure comprises a cantilever main span and side spans, the two ends of each side span are arranged at the two ends of the cantilever main span, the side spans are connected with the cantilever main span, and the two side spans and the cantilever main span are connected to form a three-span curve continuous beam structure. Through the continuity of the two groups of side spans and the cantilever main span, a cantilever beam consolidation system formed by a cantilever platform in the prior art is converted into a three-span curve continuous beam system, so that the temperature force can be effectively released, and the stress is more reasonable; the generated bending moment is balanced by the dead weight of the side span and the counter weight; and the span of the cantilever platform is not limited any more, and large-span cantilever platforms are facilitated.

Description

Technical Field

[0001] This invention relates to the field of architectural design technology, and more specifically, to a large-span steel structure cantilever platform. Background Art

[0002] The common practice for existing landscape balconies is to fix the base to the foundation and set up a steel-concrete composite section, so that the foundation can bear the bending moment and temperature force of the balconies.

[0003] The above method has the following problems:

[0004] The loads generated by the self-weight of the platform, live load, and temperature force are all borne by the foundation and the steel-concrete composite section.

[0005] The larger the span of the cantilever, the higher the bearing capacity requirements of the foundation and the steel-concrete joint section, which leads to an increase in foundation size and cost. Moreover, the span of the cantilever is limited by the bearing capacity of materials such as steel and concrete. Summary of the Invention

[0006] The technical problem to be solved by this invention is to provide a large-span steel structure cantilever platform.

[0007] The solution adopted by this invention to solve the technical problem is:

[0008] A large-span steel structure cantilever platform includes a cantilever structure and a foundation support structure set at the bottom of the cantilever structure; the cantilever structure includes a cantilever main span and side spans set at both ends of the cantilever main span and connected to the cantilever main span, and the two sets 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 sets of side spans are arranged symmetrically.

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

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

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

[0013] In some possible implementations, both the cantilevered main span and the side spans are 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 support is any one of a plate rubber support, a pot rubber support, or a spherical steel support.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] This invention connects two sets of side spans to the two ends of the cantilevered main span, transforming the cantilevered pier-beam consolidation system formed by the cantilever platform in the prior art into a three-span curved continuous beam system. As a result, temperature forces can be released through the supports, and the stress distribution is more reasonable.

[0018] This invention, by setting two sets of side spans, allows the generated bending moment to be balanced by the self-weight of the side spans, significantly reducing the foundation size and construction cost; through structural system transformation, the span of the cantilever platform is no longer limited, which is more advantageous for large-span cantilever platforms, and the larger the span, the higher the cost-effectiveness.

[0019] This invention reduces the length of the side spans by filling them with concrete as counterweight, thereby lowering the cost and making the structure more rational.

[0020] This invention has a simple structure and is highly practical. Attached Figure Description

[0021] Figure 1 This is a bottom view of the present invention;

[0022] Figure 2 This is an elevation view of the present invention;

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

[0024] Figure 4 for Figure 2 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. Bearing. DETAILED DESCRIPTION

[0026] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the existence of at least one. In the implementation of this application, "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more. For example, multiple positioning posts refer to two or more positioning posts. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] The present invention will now be described in detail.

[0028] like Figures 1-2 As shown:

[0029] A large-span steel structure cantilever platform includes a cantilever structure and a foundation support structure 3 set at the bottom of the cantilever structure; the foundation support structure 3 set at the bottom of the cantilever structure can release the generated temperature force, making the overall platform more reasonably stressed.

[0030] The cantilever structure includes a cantilevered main span 1 and side spans 2, which are located at both ends of the cantilevered main span 1 and connected to the cantilevered main span 1. The two sets of side spans 2 and the cantilevered main span 1 are connected to form a three-span curved continuous beam structure.

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

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

[0033] The bottoms of the abutment 31 and the pier 32 extend into the ground and mainly serve as supports; the supports 33 are respectively installed on the tops of the abutment 31 and the pier 32.

[0034] Compared to the existing technology where the beam and foundation are fixed together, the temperature force is very large when the span is large, resulting in a large thrust on the foundation. The present invention provides supports 33 on the abutment 31 and the pier 32 respectively. By providing supports 33, the temperature force is released and the thrust of the temperature force on the pier 32 and the abutment 31 is reduced.

[0035] By setting side span 2, the bending moment of the cantilevered main span 1 is effectively balanced, and the overall structure is effectively prevented from overturning under the bending moment of its own weight, i.e., the load, at mid-span.

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

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

[0038] In some possible implementations, both the cantilevered main span 1 and the side span 2 are steel box girder structures; the two 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 increasing the counterweight of side span 2 by filling it with concrete, the length of side span 2 can be effectively reduced, the cost can be lowered, and the structure can be made more reasonable.

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

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

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

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

[0045] This invention is not limited to the specific embodiments described above. The invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. A large-span steel structure cantilever platform, characterized in that, It includes a cantilever structure and a foundation support structure set at the bottom of the cantilever structure; the cantilever structure includes a cantilever main span and side spans set at both ends of the cantilever main span and connected to the cantilever main span, and the two sets of side spans and the cantilever main span are connected to form a three-span curved continuous beam structure.

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

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

4. The large-span steel structure cantilever platform according to claim 1, characterized in that, Both the cantilevered main span and side spans are arc-shaped structures.

5. A large-span steel structure cantilever platform according to claim 1, characterized in that, The length of the side span is d, and the length of the cantilevered main span is D, where 0.2D < d < 0.5D.

6. A large-span steel structure cantilever platform according to claim 5, characterized in that, The cantilevered main span and side spans are both steel box girder structures.

7. A large-span steel structure cantilever platform according to claim 6, characterized in that, The steel box girder structure of the side span is filled with concrete.

8. A large-span steel structure cantilever platform according to claim 3, characterized in that, The support is any one of plate rubber support, pot rubber support, or spherical steel support.

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