Prefabricated steel structure self-resetting module based on support energy dissipation

Abstract

An assembled steel structure self-resetting module based on support energy dissipation, including vertical edge members, transverse edge members, supports and hinge columns, and several post-tensioned prestressed steel strands are arranged along the two transverse edge members and anchored A prestressed frame is formed on the outer flanges of the two vertical edge members; two hinge columns are arranged on the inner side of the two vertical edge members, and end plates are arranged at both ends to connect the upper and lower two through high-strength bolts. The flange of a transverse edge member; the two supports are connected to the ear plates of the hinged columns by high-strength bolts to form an X-shaped cross brace. Using the present invention, the structure can be restored to its original position through prestressed steel strands after a major earthquake, and only the support needs to be replaced, which is simpler and more convenient, so that the structure can still return to its original position without residual after the earthquake develops plasticity The goal of reducing deformation, shortening maintenance time, reducing maintenance costs and putting it into use as soon as possible.

Description

technical field [0001] The invention belongs to the technical field of anti-seismic engineering and relates to a support-based energy-dissipating structure. Background technique [0002] The current anti-seismic thinking in my country is "not damaged by small earthquakes, repairable by moderate earthquakes, and not collapsed by major earthquakes". After an earthquake, the structure is allowed to have major damage, but it cannot collapse and cause casualties. However, even if the structure did not collapse after the earthquake, some important components have undergone large residual deformation and cannot be restored to their original positions, making it difficult to repair and strengthen the structure or even be demolished and rebuilt. [0003] In order to achieve the goal that the structure can return to its original position without residual deformation after the earthquake develops plasticity, so as to shorten the maintenance time, reduce the maintenance cost and put it ...

AI Technical Summary

Problems solved by technology

However, even if the structure did not collapse after the earthquake, some important components have undergone large residual deformation and cannot be restored to their original positions, making it difficult to repair and reinforce the structure or even be demolished and rebuilt.

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