Dynamic response analysis of machine bridge of spillway gate

Abstract

Under the action of earthquake, the seismic property of the machine bridge directly affects the normal use of spillway gate. At the same time, the type of infilled wall affects the seismic capacity of the machine bridge. To decrease the damage possibility of the machine bridge under earthquake, three finite element models are established by finite element software, and the dynamic time history analysis of the machine bridge is carried out. The stress and displacement of different models are obtained through the dynamic time history analysis. The best type of infilled wall is judged by comparing the seismic responses of three models. Based on the analysis results, the mechanical characteristics of the machine bridge under earthquake action are analyzed and the weak position of the structure is found. Therefore, some measures can be taken to further improve the seismic performance of the machine bridge. The calculation results have important significance for practical engineering.