高层连体结构地震响应的试验电路设计与仿真

Design and Simulation of Equivalent Experimentation Circuit on Seismic Response of Connected High-building

针对一非对称双塔连体结构,建立了对应的动力分析模型、振动方程和状态空间表达式,推导出该结构体系的传递函数矩阵,并对所获得的传递函数进行基于动力特性相同原则的等效降阶处理,得到该结构体系在‘THBBC-1型信号与自动控制试验台’上进行试验分析的等效电路图;分别采用试验电路模拟和数值仿真两种方法对该连体结构进行天然地震载荷EL-Centro1940波作用下的地震响应研究。研究结果表明:等效模拟试验电路模型和原系统具有较好的相似性,两种分析方法所获得地震响应的结果非常接近,说明本文所提方法分析连体结构地震响应的有效性。

Aimed to a unsymmetrical connected double-tower structure,a corresponding model of dynamic analysis,vibration equation and the state space expression are established,the transfer function matrix of the structure system from the state space expression is deduced,and the obtained transfer functions were simplified by means of equivalent reduced order based on the same principles of dynamic characteristics,and the equivalent circuit diagram of ＇THBBC-1 Signal and Automatic Control Experimentation Table＇ can be obtained too;two ways,experimentation circuit simulation and numerical simulation,are used to discuss the seismic response of the connected structure under the EL-Centro1940 wave which along the connection direction.The study results show that： the equivalent circuit model and the original system has better similarity,the seismic response results is very closed when use the two analytical methods find it,and prove the analytical method that mentioned in this article to analysis the seismic response of the unsymmetrical connected double-tower structure is available.