Large-span, secondary-beam-free and high-assembly industrialized steel structure system

Abstract

A large-span, secondary-beam-free and high-assembly industrialized steel structure system comprises a staggered steel structure truss, a plurality of prefabricated large-span prestressed hollow slabs and concrete composite layer, wherein the staggered steel structure truss adopts a multilayer structure with at least double spans, and comprises framework columns, framework beams and plane trusses; the framework columns and the framework beams are vertically arranged at the periphery of the staggered steel structure truss to form a framework structure; the plane trusses are arranged in an upper-and-lower staggered manner in the height direction of the framework columns, and the plane trusses on the adjacent framework columns are arranged in an upper-and-lower staggered manner; the two ends of each plane truss are supported on the framework columns on the two sides; each plane truss is formed by connecting upper chords, lower chords, straight web members and diagonal web members; the prefabricated large-span prestressed hollow slabs are arranged on the staggered steel structure truss; one ends of the prestressed hollow slabs are supported on the upper chords of the plane trusses, and the other ends of the prestressed hollow slabs are supported on the lower chords of the adjacent plane trusses; the concrete composite layers are paved on the prefabricated large-span prestressed hollow slabs. The large-span, secondary-beam-free and high-assembly industrialized steel structure system is economical in steel consumption, standard in element production, convenient and fast to construct, and convenient for industrialized production.

Description

technical field [0001] The invention relates to steel structure technology, in particular to a large-span, non-secondary beam, and highly assembled industrialized steel structure system, which can be applied to multi- and high-rise dormitory buildings, hospital inpatient buildings, hotel-style apartments (hotels, restaurants), Teaching buildings and other buildings with large horizontal spans and internal corridors. Background technique [0002] At present, in many high-rise buildings with steel structure, the structural forms are mostly steel frame structure, steel frame-support structure, steel frame-steel plate shear wall structure and steel frame-core tube structure. The common problem is that the structure uses a large amount of steel, which cannot effectively compete with the concrete structure. [0003] The steel structure staggered truss system was born in the 1960s and was developed by the Massachusetts Institute of Technology. The purpose is to provide a more econ...

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Problems solved by technology

This structural form has a large number of engineering application cases in the United States, Canada, Australia and other countries; the research on the staggered truss system in my country originated in the late 1990s, and there is no engineering application case at present

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