某采用摩擦摆隔震支座的钢筋混凝土框架结构设计与分析  

Design and analysis of a RC frame structure with friction pendulum isolation bearings

作　　者：杨忠平 雷远德 邓烜 郁银泉 李戚齐 YANG Zhongping;LEI Yuande;DENG Xuan;YU Yinquan;LI Qiqi(Gansu Engineering Design Reasearch Institute Co.,Ltd.,Lanzhou 730030,China;China Institute of Building Standard Design and Research Co.,Ltd.,Beijing 100048,China)

机构地区：[1]甘肃省工程设计研究院有限责任公司,兰州730030 [2]中国建筑标准设计研究院有限公司,北京100048

出　　处：《建筑结构》2021年第8期1-7,共7页Building Structure

摘　　要：对一个采用摩擦摆隔震支座的钢筋混凝土框架结构工程案例进行详细的设计与分析。对比了结构计算软件中摩擦摆隔震支座单元的计算模型与实际摩擦摆隔震支座试验力学性能的差异以及带来的误差,分析了摩擦摆隔震支座隔震方案与叠层橡胶隔震支座隔震方案在设计中的异同点。结果表明:摩擦摆隔震支座的力学性能在现有结构计算软件中得到很好的模拟;摩擦摆隔震结构能够取得和叠层橡胶隔震支座相近的隔震效果,且不需要经过专门的隔震层刚心调整就能有效抑制隔震层的地震扭转反应;摩擦摆隔震支座的连接螺栓不会承受竖向拉力的作用,相关预埋件长度可以大大缩短,降低施工难度。An engineering case of a reinforced concrete frame structure with friction pendulum isolation bearings was designed and analyzed in detail. The differences of the mechanical properties and the errors between calculation model of friction pendulum isolation bearing element in general finite element analysis software and actual friction pendulum isolation bearings were compared. The similarities and differences in the design of friction pendulum isolation bearing isolation scheme and laminated rubber isolation bearing isolation scheme were analyzed. The results show that the mechanical properties of the friction pendulum isolation bearing are well simulated in the existing structure calculation software. The friction pendulum isolated structure can achieve the isolation effect similar to that of the laminated rubber isolation bearings, and the seismic torsion response of the isolation layer can be effectively suppressed without special adjustment of the stiffness of the isolation interface. The connecting bolts of the friction pendulum isolation bearing don′t bear the vertical tension, and the length of the embedded parts can be greatly shortened, thus reducing the construction difficulty.

关 键 词：摩擦摆隔震支座 建筑隔震 叠层橡胶隔震支座 扭转反应 连接螺栓 

分 类 号：TU351[建筑科学—结构工程]