Steel bar prestressed steel pipe concrete supporter

Abstract

The invention discloses a steel bar prestressed steel pipe concrete supporter, belongs to a building structure component, and particularly relates to a steel-concrete combined structure support component. By aiming at solving the problems of serious post-earthquake structure damage and too great lateral displacement of a framework structure under the horizontal earthquake effect and simultaneously overcoming the defect of great steel consumption of a steel structure supporter, the invention provides the steel bar prestressed steel pipe concrete supporter. On the basis of a steel pipe concrete supporter, ordinary steel bars are embedded in concrete; the two ends of the ordinary steel bars are anchored onto steel pipe end plates; prestress is applied onto the concrete by a post-tensioning method, so that the steel pipe concrete supporter can simultaneously bear great pressure and tension under the effect of a horizontal earthquake load. A building structure using the steel bar prestressed steel pipe concrete supporter has excellent anti-earthquake performance and high material utilization efficiency, and can sufficiently achieve the advantages that the mechanical property is good; the construction is convenient; and economy and reasonableness are realized.

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 the ductile frame mainly relies on the damage of the main structure to dissipate energy. Under the earthquake, its interstory displacement is quite large, and the structural damage after the earthquake is serious. 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 a...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of excessive lateral displacement of the frame structure under horizontal earthquake action and serious structural damage after the earthquake, and at the same time improve the problem of large amount of steel used for steel structure support

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