Steel pipe fiber reinforced concrete support

Abstract

The invention belongs to a building structure member, particularly relates to a steel-concrete combination structure support member, and provides a steel tube fiber concrete support. The steel tube fiber concrete support is used for solving the problem that a frame structure has too large lateral displacement under the horizontal earthquake action and is seriously damaged after the earthquake and overcoming the defect that a steel structure support is large in steel consumption. Concrete mixed with steel fiber or synthetic fiber is poured into a circular steel tube, so that the concrete has certain tension resistance; meanwhile, in order to transmit supporting tension to the concrete inside the steel tube, a short steel tube with a bolt pin effect is arranged in the steel tube. In this way, the steel tube concrete support can bear large pressure and tension at the same time under the horizontal earthquake load action. A building structure with the steel tube fiber concrete support has excellent earthquake resistance and a high material utilization rate, and the advantages of being excellent in mechanical performance, convenient to construct, economical and reasonable can be fully exerted.

Description

technical field [0001] The invention belongs to a building structure component, in particular to a steel-concrete composite structure support component. Background technique [0002] Under strong earthquakes, buildings are often subject to large horizontal seismic forces. At present, the earthquake energy is dissipated mainly by the bearing capacity and ductility of the frame structure itself. When the structural resistance is much smaller than the required resistance according to the elastic theory design, it is also The structure can be cracked without falling down. However, the disadvantage of the ductile frame is that it mainly relies on the damage of the main structure to dissipate energy. Under the earthquake, its interstory displacement is quite large, and the structure is seriously damaged after the earthquake. Although it can avoid collapse, it is not easy to repair. In order to improve the lateral stiffness of the ductile frame, the current research and applicatio...

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Problems solved by technology

[0003] The purpose of the invention is to solve the problem of excessive lateral displacement of the frame structure under the action of a horizontal earthquake and serious structural damage after the earthquake, and at the same time improve the shortage of large amount of steel used for the support of the steel structure. The invention provides a steel pipe fiber reinforced concrete support

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