Cold-formed thin-walled steel column and beam structural system for multistoried building

Abstract

A cold-formed thin-walled steel column and beam structural system for a multistoried building comprises a reinforced concrete ground beam (1). Columns standing vertically and upwardly are fixed in the reinforced concrete ground beam (1). A beam perpendicular to each column is fixed on the same. The beams are parallel. The cold-formed thin-walled steel column and beam structural system is characterized in that each column is a rectangular steel pipe column (2), each beam is a cold-formed thin-walled C-type steel beam (4) which is bent into an 'L' shape, a cold-formed thin-walled steel angle (5) is fixed at equal altitude above each rectangular steel pipe column (2), another cold-formed thin-walled steel angle (5) is fixed at equal altitude below each rectangular steel pipe column (2), a bending part of each cold-formed thin-walled C-type steel beam (4) is embedded into a cavity, and partial or all of the cavities of the rectangular steel pipe columns (2) are filled with sandy gravels (3).

Description

1. Technical field [0001] The invention belongs to building structure technology, in particular to a structural system for connecting a novel cold-formed thin-walled steel composite wall and beams, including the connection between floor beams and walls. 2. Background technology [0002] Cold-formed thin-walled steel structure house rods are light in weight, do not need large-scale construction machinery during construction, are easy to operate, have good seismic performance, energy saving, land saving, material saving, environmental protection, are conducive to the industrialization of housing construction, and have a short construction period, With a series of advantages such as good comprehensive benefits, it is very suitable for adoption in house construction. At present, this system has become an important form of low-rise residential buildings in developed countries such as the United States, Japan, and Australia. In view of the green and ecological characteristics of ...

AI Technical Summary

Problems solved by technology

This kind of connection can be changed through the structure, and the beams, columns and rods correspond one by one, which has little effect on bearing vertical loads, but is very unfavorable for bearing horizontal wind loads and earthquakes, and does not meet the "strong node" in engineering structure design. Weak member, strong column weak beam" design criterion, because the vertical load-bearing framing member-column in the composite wall is disconnected at the storey

[0004] Chinese patent application 201110227050.X discloses a light steel building floor connection structure, which includes floor beams and light steel walls, and the beams and floor beams in the floor are all truss structures; The load-bearing member adopts a lattice cross section, which has better structural integrity, but the interior of the lattice structure is hollow, and the longitudinal frame beams are inserted through it. It is also more difficult to fill the wallboard; there are many rods under the force inside the floor and the wall, and there are many bolts and other connecting keys that need to be installed. It is necessary to pre-open bolt holes on the rods, which requires high construction accuracy. long cycle

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