Assembled monolithic multilayer long-span bidirectional multi-span building with space steel grid box-type structures

Abstract

The invention discloses an assembled monolithic multilayer long-span bidirectional multi-span building with space steel grid box-type structures, which is characterized in that each layer of ground steel structural framework is formed into a single space steel grid box-type structure by a central cross-shaped single-layer steel grid wall frame, a surrounding single-layer steel grid-type outer wall frame and a top steel open-web sandwich plate floor frame, and the steel grid wall frames are respectively connected by small-sized assembly units prefabricated in a factory at the construction site by using high-strength bolts; all layers of single space steel grid box-type structures are upwards superposed layer by layer to form a superposed single barrel box-type structure; and four multilayer superposed single barrel box-type structures are connected with each other at the floor to form an assembled monolithic multilayer long-span bidirectional multi-span barrel bundle with the space steel grid box-type structures. According to the building disclosed by the invention, welding operations are not needed at the construction site, so that the fire hidden danger is eliminated. Compared with traditional steel framework structures, the construction cost of the steel structure is reduced by 15-20 percent, the construction progress is shortened by at least 1 / 3, and the resist lateral stiffness is increased by at least twice.

Description

[0001] technical field [0002] The invention relates to a large-scale public building structure system, in particular to an assembled integral multi-layer large-span two-way multi-span space steel grid box structure building. Background technique [0003] For a long time, public buildings such as sports training halls, exhibition halls, and large-scale entertainment venues have mostly short-side spans between 30m and 42m, and most of them are single-storey buildings with light steel roofs, which are extremely effective in saving land. unfavorable. And when large public buildings reach l = 32m ~ 42m, the use of conventional prestressed concrete frame structure, such as the garage of the capital T2 airport, will lead to the phenomenon of "fat beams and fat columns". The problem will eventually lead to an increase in the cost, failing to meet the requirements of "energy saving, emission reduction and low-carbon economy". [0004] Chinese patent ZL200610200188.X discl...

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Problems solved by technology

[0006] The present invention aims to solve the disadvantages of large amount of concrete and steel and high cost caused by fat beams and columns in the construction of public buildings with conventional frame structures, and provides a construction site without welding operations, fast construction progress, and civilized construction Prefabricated monolithic multi-storey large-span two-way multi-span space steel grid box structure building with high height and greatly reduced steel consumption

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