Self-reset L-shaped piece connecting column base joint with additional replaceable oblique anti-side BRB

Abstract

The invention relates to a self-reset L-shaped piece connecting column base joint with an additional replaceable oblique anti-side BRB, and belongs to the field of structural engineering. The self-reset L-shaped piece connecting column base joint is composed of a square steel column, an L-shaped connecting piece, replaceable anti-side energy-consuming devices on two sides and a self-reset device.Design concepts of damage control, energy-consuming element replacement, bending moment amplitude modulation, vertical bearing, horizontal anti-side separation and the like are applied, the advantagesof a traditional rigid-connecting column and a traditional hinge column are combined, through reasonable design, the bending moment amplitude modulation is realized, the bending moment above column is reduced to protect the node from the damage, the BRB is enabled to undertake the main anti-side work, and the damage is controlled on the BRB. The two ends of the BRB are hinged, the energy-consuming performance of the BRB is fully realized by converting a lateral load into an axial load applied to the BRB, and the working efficiency of anti-side energy-consuming members is improved. After an earthquake, only the BRB needs to be replaced to restore the function of the column base joint. A self-reset function is realized by the combination of a pre-stressed cable and a hinged base, the anti-side capability is enhanced, and the structural earthquake resistance and the post-earthquake recovery capability are improved.

Description

technical field [0001] This patent relates to a self-resetting L-shaped piece connection column foot node with an additional replaceable oblique anti-side 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 each component, the factory produces uniform specifications, and bolts are assembled accurately on site to avoid the consumption of building materials caused by construction error...

AI Technical Summary

Problems solved by technology

[0006] The present invention proposes a self-resetting L-shaped connection column foot node with an additional replaceable oblique anti-side BRB, aiming to solve the problem of large post-earthquake damage of the bottom column in the existing assembled steel structure system and difficulties in post-earthquake repairs, etc. Disadvantages, avoiding waste of steel, prolonging the service life of nodes, improving economic benefits, and also providing more options for the assembled bottom column foot nodes

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