基于不同强震记录的高层结构时程响应比较

Time-history Response Comparison of High-rise Structure Based on Different Strong Motion Records

为比较在5.12汶川地震和东日本大地震作用下高层结构时程响应的差异,分别从这两次地震记录库中挑选出典型场地地震动加速度记录各3条作为结构输入地震动,采用ANSYS软件建立一88层高层建筑结构三维有限元分析模型进行时程响应分析.结果表明,在东日本大地震强震记录作用下高层结构的位移反应、加速度反应以及基底剪力和弯矩值,均明显大于5.12汶川地震动记录作用的结果.

To compare the different seismic responses of the high -rise building under 5.12 Wenchuan Earthquake and the East Japan Earthquake , 6 acceleration records from earthquakes in typical sites were selected from the databases of the two earthquakes as input records .Then, a high-rise building 3D model was estab-lished using the finite element analysis software to do the time -history responses analysis .The results show that the displacement response , acceleration response , base shear force and the base bending moment of the high -rise structure under the East Japan strong motion records are significantly greater than that under the 5 .12 Wen-chuan strong motion records .