Integral two-way partial one-way steel-concrete slab composite floor and its construction method

A technology of concrete slab and two-way steel, which is applied to floors, building components, buildings, etc., can solve the problems of bearing capacity and seismic performance that cannot meet the requirements of large-span structures, increase the workload of node connection, and increase the number of nodes, etc. The effect of wet work, reducing the layout of the main beam, and improving the stiffness of the floor

Inactive Publication Date: 2011-11-30
TSINGHUA UNIV
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Problems solved by technology

However, when the plane size and column spacing of the building are significantly increased or vertical support members are not allowed indoors, these floor structures can no longer meet the requirements of the development of long-span structures in terms of bearing capacity and seismic pe...

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  • Integral two-way partial one-way steel-concrete slab composite floor and its construction method
  • Integral two-way partial one-way steel-concrete slab composite floor and its construction method

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Embodiment Construction

[0016] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0017] The overall two-way partial one-way steel-concrete slab composite floor provided by the present invention is composed of two-way steel main beam 1, one-way steel secondary beam 2, and concrete slab 3, and each part is combined into a whole by a shear connector 4 work together. The two-way steel girder 1 can be an I-shaped steel girder or a box-shaped steel girder, and is located on the lower floor of the floor. The connection between the two-way steel main girders 1 and the one-way steel secondary girders 2 can be bolted or welded, and the number, cross-sectional size and spacing of steel girders are determined according to the application requirements. The shear connector 4 can be in the form of studs, channel steel, etc., and is a component that connects the steel beam and the concrete slab to work together. The concrete slab 3 is...

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Abstract

The invention relates to an integral two-way partial one-way steel-concrete composite floor and a construction method thereof, belonging to the field of structural engineering. The invention consists of an integral two-way steel main girder, a local one-way steel secondary girder and a concrete slab. The two-way steel main girder is an I-shaped section or a box-shaped section; the local one-way steel secondary beam is an I-shaped section; The upper flanges of main beams and unidirectional steel secondary beams cover the grids between steel beams. The overall two-way partial one-way steel-concrete composite floor of the present invention can fully exert the material characteristics through the combination effect, and realize the force effect of the overall two-way support. On the basis of ensuring the mechanical performance of the structure, the number of nodes is reduced to further facilitate the construction of the steel structure.

Description

technical field [0001] The invention relates to a novel long-span floor structure (15m≤span L≤70m), which belongs to the field of structural engineering. Background technique [0002] In traditional building structures, reinforced concrete rib beam floors, reinforced concrete well-shaped floors or unidirectionally supported steel-concrete composite beam floors are usually used. However, when the plane size and column distance of the building are significantly increased or vertical support members are not allowed indoors, these floor structures cannot meet the requirements of the development of long-span structures in terms of bearing capacity and seismic performance. The developed two-way steel-laminated slab concrete composite floor has solved the above problems, but the number of nodes is large, which increases the workload of node connection, and the amount of steel used is too large due to the large number of cross-shaped intersection nodes. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): E04B5/10E04B5/29
Inventor 聂建国聂鑫
Owner TSINGHUA UNIV
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