等效力控制方法在连梁阻尼器拟动力子结构试验中的应用  

Application of equivalent force control method in pseudo-dynamic substructure tests of coupling beam damper

作　　者：周大睿[1] 许国山[1] 吴斌[1] 滕军[2] 马伯涛[2] 

机构地区：[1]哈尔滨工业大学土木工程学院,哈尔滨150090 [2]哈尔滨工业大学深圳研究生院,深圳518055

出　　处：《振动与冲击》2011年第8期72-76,共5页Journal of Vibration and Shock

基　　金：国家自然科学基金(90715036;50938001);地震行业科研专项经费(20084190731);中国博士后科学基金资助项目;黑龙江省博士后资助经费资助;哈尔滨工业大学科研创新基金资助(HIT.NSIF2010018)

摘　　要：等效力控制方法用反馈控制求解拟动力试验隐式逐步积分方法的非线性方程,避免了复杂耗时的迭代过程。应用等效力控制方法完成了以连梁阻尼器为试件的拟动力子结构试验,检验了其对双肢剪力墙结构的减震效果。介绍了等效力控制方法原理和一些关键参数的选取方法,介绍了装有连梁阻尼器的双肢剪力墙结构模型,并对此结构模型进行了拟动力子结构试验。研究结果表明:通过合理选取等效力控制器参数和力-位移转换系数,等效力控制方法具有很好的稳定性和精度;连梁阻尼器对双肢剪力墙结构反应有很好的控制效果。In the equivalent force control method （EFCM）, feedback control strate~ was made in use, instead of the time-consuming numerical iteration, to solve the nonlinear equations of motion for real-time substructure testing with implicit integration method. The EFCM was successfully applied in the pseudo-dynamic substructure tests of coupled shear wall structure, taking coupling beam damper as test specimen in order to investigate its effect on the seismic pcdbrmanc~ of the structure. The EFCM and the determination of some key parameters in EFC were introduced, and the simplified model and pseudo-dynamic tests of the coupled shear wall structure with coupling beam damper were presemed. It i~ shown that the EFCM can achieve excellent performance in terms of stability and accuracy if the equivalent fi^rce eontrolh＇r and force-displacement conversion factor were properly designed, and the coupling beam damper can effectively control the＇ seismic response of the coupled shear wall structure.

关 键 词：结构试验技术 拟动力子结构试验 等效力控制方法 连梁阻尼器 双肢剪力墙 

分 类 号：TU317[建筑科学—结构工程]