减震结构不同类型阻尼器同步优化方法

In this paper, a unified description method of state space for structural arrangement of different dampers is derived. Based on this, a genetic algorithm is used to realize the synchronous optimization of a fixed number of different types of dampers. The transformation matrix is used to convert the influence of the damper on the floor to the floor response, and the coefficient matrice corresponding to different types of dampers in the state space equation are derived, and the motion equation is transformed into a unified expression of the state space method. Combined with the genetic algorithm, the representation of the feasible solution has a wide range of features, and the structure with different types of dampers is uniformly coded to achieve synchronous optimization. A fixed-type damper optimization arrangement of 6-layer and 20-layer frame structures is carried out by this method. The obtained optimization results are consistent with the existing research results, which verifies the feasibility of the proposed method. The optimization arrangement for the same structures with three types of dampers is also studied, which has better seismic resistance effect than other arrangements. It proves the effectiveness of the proposed method in the simultaneous optimization of different types of dampers. The method combines the advantage of unified description of the problem by state space method with the advantage of global search of optimal solution by genetic algorithm, and can optimize multiple different types of damper positions in a short time. This work can provide certain theoretical value for the application of the intelligent optimization represented by genetic algorithm in the field of civil engineering, and has certain guiding significance for the practical engineering application of the optimal arrangement of the damper.