Crossed connecting column base node with additional lateral-resistance shearing wall and functions recoverable after earthquake

Abstract

The invention relates to a crossed connecting column base node with an additional lateral-resistance shearing wall and functions recoverable after an earthquake, and belongs to the field of structuralengineering. The node is composed of a square steel column, a crossed hinge base and replaceable lateral-resistance energy-consumption devices which are arranged on the two sides. According to the node, designing concepts of damage control, replaceable energy-consumption members, moment modification, vertical bearing, horizontal lateral-resistance separation and the like are applied, and the advantages of traditional rigid connection columns and traditional hinge columns are combined. Shape memory alloy is taken as the material of a column base supporting seat to improve the force bearing performance of the node and prolong the service life. The moment modification is achieved through reasonable designing to reduce on-column bending moment, so that the node is protected from damaging, primary lateral-resistance operation is undertaken by the replaceable lateral-resistance energy-consumption devices, and the damage on the node is avoided through a 'strong node' manner. The functions ofthe column base node can be recovered by simply replacing the lateral-resistance energy-consumption devices after the earthquake.

Description

technical field [0001] This patent relates to a post-earthquake recoverable function cross-shaped column base joint with an additional lateral shear wall, which belongs to the technical field of structural engineering. Background technique [0002] Industrialized prefabricated steel structure is an inevitable trend in the development of high-rise steel structure residential buildings in the future, and it is the only way for my country to realize the industrialization of construction. Prefabricated buildings are a major change in construction methods and an important measure to promote structural reforms and new urbanization development. They are fully in line with the connotation of "applicability, efficiency, coordination and development" of green buildings. Building assembly can standardize each component, the factory produces uniform specifications, and bolts are assembled accurately on site to avoid the consumption of building materials caused by construction errors, an...

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Problems solved by technology

[0006] The present invention proposes a post-earthquake recoverable cross-shaped column-foot joint with additional lateral shear walls, aiming to solve the disadvantages of the existing prefabricated steel structure system, such as relatively large post-seismic damage to the bottom column and difficult post-seismic repairs. , to avoid waste of steel, prolong the service life of the joints, improve economic benefits, and also provide more options for the assembled base column base joints

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