A design optimization method for vibration reduction and reinforcement of a building structure

Abstract

The application discloses a design optimization method for vibration reduction and reinforcement of a building structure and particularly relates to the technical field of building structure vibration reduction and reinforcement optimization. A multi-dimensional response characteristic matrix is constructed, a local component interface slip index and a damping degradation parameter are extracted, and a node-level micro-damage evolution topology network is established. A coupled dynamic transmission model is further constructed, and a key vibration energy attenuation path is identified. A bidirectional constraint relationship model between vibration reduction measure parameters and reinforcement arrangement variables is established based on time-frequency folding mapping, and a performance coupling prediction curve is generated. On this basis, a global optimization objective function is constructed, and an optimal design scheme is obtained through multi-objective iterative solution. The application can finely depict the energy transmission and damage evolution process inside the structure, realize collaborative optimization of vibration reduction and reinforcement, and improve the safety and durability of the structure.

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