Multi-layer frame energy dissipation and shock absorption design method based on substructure of frame structure

Abstract

The invention discloses a multi-layer frame energy dissipation and shock absorption design method based on a substructure of a frame structure. The method comprises the steps that 1, an equivalent scale reduction model of the multi-layer frame structure is established; 2, designing parameters of an energy dissipation and shock absorption device based on a substructure on the basis of the equivalent scale reduction model of the multilayer frame structure; 3, in finite element software, the effectiveness of the designed energy dissipation and shock absorption device is simulated and verified; and 4, installing a monitoring system at the key node of the real structure, updating the model in the step 1 based on the post-earthquake data, and repeating the steps 2 and 3 to realize the rapid recovery of the post-earthquake building function. According to the method, control parameters based on a substructure are designed based on multi-objective optimization, model updating is achieved through post-earthquake data, the problem that control efficiency is reduced due to system errors, observation errors or insufficient observation information completeness can be avoided, and the control effect and robustness of the method are ensured.

Description

technical field [0001] The invention relates to the technical field of shock absorption and isolation in civil engineering, in particular to a design method for energy dissipation and shock absorption of a multi-layer frame based on a substructure of a frame structure. Background technique [0002] The traditional anti-seismic / vibration strength system and anti-seismic / vibration ductility system are difficult to solve the problems of structural safety, structural function loss and structural damage. Therefore, on the basis of passive anti-seismic / vibration methods, a new type of anti-seismic / vibration technology is developed System (seismic isolation, energy dissipation and vibration reduction technology system) is very necessary. At present, the commonly used shock-absorbing / isolation structure system is to add shock-absorbing / isolation energy-dissipating devices to the structure to realize the control of structural shock / vibration; for example: adding viscous dampers betwe...

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Problems solved by technology

[0002] The traditional anti-seismic / vibration strength system and anti-seismic / vibration ductility system are difficult to solve the problems of structural safety, structural function loss and structural damage. Therefore, on the basis of passive anti-seismic / vibration methods, a new type of anti-seismic / vibration technology is developed system (seismic isolation, energy dissipation and vibration reduction technology system) is very necessary

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