地震作用下双塔楼连体结构的有限元分析

FINITE ELEMENT ANALYSIS OF A DOUBLE -TOWER CONNECTING STRUCTURE UNDER THE SEISMIC ACTION

运用ANSYS软件对一双塔楼连体结构建立了4种模型,通过对其动力特性和Y、Z向地震作用的分析,得出了结构的各种响应。分析结果表明,楼板刚度和连体连接方式对结构动力特性影响较大。塔楼上部与连体相连处的水平地震反应强烈。连体部分的竖向地震加速度反应尤为强烈,作为结构的薄弱环节在工程设计中应得到足够的重视。

Four models of a double - tower connecting structure are founded by ANSYS program in this paper. The dynamic characteristics and seismic action in Y and Z direction of the structure are analyzed and several responses are carried out. The results illustrate the floors stiffness and joint modes have an effect on the structure. The response of the upside of the structure which connects with the connecting unit is especially intense under the horizontal action of earthquake. The acceleration response of the connecting unit is more intense under the vertical action of earthquake, and it must be noticed as a vulnerable segment in engineering design.