Fabricated steel structure based on self-resetting angle braces and energy dissipation coupling beams

Abstract

The invention discloses a fabricated steel structure based on self-resetting angle braces and energy dissipation coupling beams. The fabricated steel structure comprises steel frame beams and columns, the self-resetting angle braces and the energy dissipation coupling beams; the self-resetting angle braces are connected in an area near beam-column joints through bolts; the energy dissipation coupling beams are connected between the two steel frame columns through bolts; the columns and a foundation are connected through foundation bolts; and a stiffening rib is arranged near each bolt on a steel frame. According to the fabricated steel structure, under the action of static force, anti-seismic components keep elastic; under the action of an earthquake, the energy dissipation coupling beams always absorb earthquake energy through plastic deformation; the self-resetting angle braces provide deformation recovery capability for the structure under small, medium and large earthquakes; under a huge earthquake, the energy dissipation coupling beams fully deform to dissipate energy, meanwhile, the self-resetting angle braces enter a strengthening stage, the resistance of the structure is improved by rapidly increasing the bearing capacity so as to avoid overall collapse of the structure, and under the action of the earthquake, the structure is recovered to the initial position by the self-resetting angle braces while the earthquake energy is effectively dissipated.

Description

technical field [0001] The invention belongs to the field of earthquake prevention and disaster reduction in civil engineering, and is a new type of assembled steel structure system applied in the field of structural engineering. Maintain continuous energy consumption during earthquakes. Background technique [0002] The research on the anti-seismic performance of buildings has always been a focus of civil engineering. With the improvement of the social and economic level, the anti-seismic fortification requirements of buildings are changing from ensuring basic life safety to ensuring both life and property safety. In recent years, prefabricated steel structures have gradually been widely used in construction projects in my country, and their seismic performance is good. The steel structure has high strength, good ductility, light weight, and strong elastic deformation ability, which can resolve and reduce the damage to the building caused by the earthquake shear force, and...

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Problems solved by technology

However, there will be some residual deformation after the earthquake, which will lead to property loss, loss of fu

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