地下厂房边界条件对结构振动的影响

he main body of an underground hydropower house locates in rock mass, and its structural style and constitution are very complicated. The relationship between a plant structure and rock mass has important influence on dynamic response of the whole system. In this paper, the different boundary conditions were analyzed. The emphasis of the boundary conditions is how the structure connects with the rock mass. Using ANSYS software, different models were calculated and analyzed. According to the results of resonance check and dynamic response, various schemes were appraised. This study is helpful to how to select the rational boundary of the structure.