Post-earthquake recoverable L-shaped piece connecting column foot node with additional oblique side-resisting BRB

Abstract

The invention relates to a post-earthquake recoverable L-shaped piece connecting column foot node with an additional oblique side-resisting BRB, and belongs to the field of structural engineering. Thenode is composed of a square steel column, an L-shaped connecting piece and replaceable lateral energy consumption resisting devices on two sides. According to the invention, design ideas of damage control, energy dissipation element replacement, bending moment amplitude adjustment, vertical bearing, horizontal resistance to lateral separation and the like are combined, the advantages of a traditional rigid connection column and a traditional hinge column are combined, bending moment amplitude adjustment is achieved through reasonable design, bending moment on the column is reduced so that the column can be protected against damage, meanwhile, the BRB bears main side resisting work, and damage is controlled on the BRB. Two ends of the BRB both adopt hinged connnection, the energy consumption performance of the BRB is brought into full play by converting lateral load into axial load applied to the BRB, and the working efficiency of the lateral energy consumption resisting component isimproved. And after the earthquake, the column foot node can recover the function only by replacing the BRB.

Description

technical field [0001] This patent relates to a post-earthquake recoverable L-shaped piece connection column foot node with an additional oblique anti-lateral BRB, 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 various components, produce uniform specifications in the factory, and accurately assemble bolts on site to avoid the consumption of building materials caused by construction ...

AI Technical Summary

Problems solved by technology

[0006] The present invention proposes a post-earthquake restorable L-shaped joint with an additional oblique anti-lateral BRB, aiming to solve the large post-earthquake damage of the bottom column and the difficulty in post-earthquake repair in the existing assembled 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

Images