Crossed column base node with additional lateral-resistance shearing wall in shape of Greek alphabet 'gamma' and functions recoverable after earthquake

Abstract

The invention relates to a crossed column base node with an additional lateral-resistance shearing wall in the shape of the Greek alphabet 'gamma' and functions recoverable after an earthquake, and belongs to the field of structural engineering. The node is composed of a square steel column, a crossed hinge base and replaceable slotted 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. 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 slotted lateral-resistance energy-consumption devices, and the damage is controlled to be on the lateral-resistance shearing wall in the shape of the Greek alphabet 'gamma'. The functions of the column base node can be recovered by simply replacing thelateral-resistance energy-consumption devices after the earthquake.

Description

technical field [0001] This patent relates to a post-earthquake restorable function cross-shaped column-foot joint with an additional Γ-shaped 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 er...

AI Technical Summary

Problems solved by technology

[0006] The present invention proposes a post-earthquake recoverable functional cross-shaped column foot node with an additional Γ-shaped lateral shear wall, aiming at solving the problem of relatively large post-seismic damage and difficult post-seismic repair of the bottom column in the existing prefabricated steel structure system and other disadvantages, avoiding the waste of steel, prolonging the service life of nodes, improving economic benefits, and also providing more options for the assembled bottom column column foot nodes

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