一种对多层建筑随机地震响应控制的新方法  

A New Method for Control the Random Seismic Response of Multi-storey Building

作　　者：马涌泉[1] 邱洪兴[1] 

机构地区：[1]东南大学土木工程学院,江苏南京210096

出　　处：《东北大学学报（自然科学版）》2013年第11期1660-1664,共5页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(51078077);国家"十二五"科技支撑计划项目(2012BAJ14B00)

摘　　要：为了降低多层钢筋混凝土框架结构的地震响应,建立了包含TMD与LRB贡献在内的结构非线性运动方程.采用复模态理论解耦由结构第一阶振型展开得到的非经典阻尼、非对称刚度和质量的方程,编制了以第一振型表示的结构随机地震响应解析解的求解程序,并通过与确定性算法计算结果的比较,验证了求解程序的可靠性.研究结果表明:TMD+LRB联合控制比TMD控制能更显著地降低结构位移和加速度响应.In order to reduce the seismic response of the multi-storey reinforced concrete frame building structure, the non-linear system motion equation which involved the contribution of the TMD and LRB is established. The equations which consist of non-classical damping, asymmetry stiffness and mass are obtained by expanding the first-order vibration mode of structure, and the equations are decoupled using the complex modal theory. The program is compiled for solving the problem how to acquire the analytical solutions of random seismic response of structure. The validity of this algorithm was verified by comparing with calculation results of deterministic algorithms. The consequences indicate that the TMD and LRB united control could decrease the seismic response of main structure more obviously than TMD control, for instance, displacement and acceleration.

关 键 词：多层建筑 调谐质量阻尼器 铅芯橡胶支座 复模态 随机地震响应 

分 类 号：O328[理学—一般力学与力学基础] TU311.3[理学—力学]