机构地区: 同济大学土木工程学院土木工程防灾国家重点实验室
出 处: 《世界地震工程》 2008年第2期21-25,共5页
摘 要: 通过具有不同自振频率的单自由度系统地震响应的数值计算,讨论了基于运动学和动力学关系所形成的不同地震动时程输入模式对计算结构地震响应的影响。数值结果表明,不同地震输入模式对计算结构地震响应是有较大的影响,要慎重应用地震位移输入模式。 Based on the numerical analysis for the seismic responses of single degree of freedom(SDOF) system with different natural frequency,the effects of different seismic excitation models on the dynamic responses of the structure are discussed.Four seismic excitation models are used according to the kinematics and dynamics relationships between seismic displacement and acceleration.The numerical results show that the seismic excitation model has important influence on the seismic responses of the structure.It ne...
领 域: [建筑科学]