参数不对称隔震支座在连体结构中的应用  

Application of parametric asymmetric isolation bearing in conjoined structure

作　　者：高嵩[1] 王世刚[1] 陈鹏[1] 吴一红[1] 陈勇[1] 刘旭 吕昌明 梁云翔 GAO Song;WANG Shigang;CHEN Peng;WU Yihong;CHEN Yong;LIU Xu;LÜChangming;LIANG Yunxiang(China Northeast Architectural Design&Research Institute Co.,Ltd.,Shenyang 110006,China;Northeast Branch China Construction Eighth Engineering Divison Co.,Ltd.,Dalian 110011,China)

机构地区：[1]中国建筑东北设计研究院有限公司,沈阳110006 [2]中国建筑第八工程局有限公司东北公司,大连110011

出　　处：《建筑结构》2022年第14期79-84,114,共7页Building Structure

摘　　要：两栋形体不对称塔楼在高位通过空中连廊连接为整体结构。连接体一层是观光平台,二层是室外游泳池,因为塔楼形体不对称,连接体平面位置偏置,并且游泳池的设备管线只从一侧塔楼进出,造成两侧变形缝的性能需求不一致。连接体的一侧变形缝设置较柔的摩擦摆隔震支座,通过较大的位移释放支座水平反力;另一侧设置较刚的摩擦摆隔震支座和黏滞阻尼器,以改善设备管道的抗疲劳性能,从而能更合理地满足安全性和使用性需要。对连体结构双塔进行动力弹塑性分析,对不同参数隔震支座的选型、摩擦摆隔震支座最大矢量位移、竖向作用力对摩擦摆隔震支座的影响等几个相关问题进行了分析。结果表明,根据性能需求的差异而选定的隔震支座参数,可以更好地匹配建筑功能,且具有足够的安全储备。The two asymmetrical towers are connected by the air connective corridor to form a whole structure at a high level.The first floor of the connective corridor is a sightseeing platform,and the second floor is an outdoor swimming pool.Because the shape of the tower is asymmetrical,the plane of the connective corridor is offset,and the equipment pipelines of the swimming pool only enter and exit from one tower,resulting in inconsistent performance requirements of the deformation joints on both sides.One side of the connective corridor was provided with a relatively soft friction pendulum vibration isolation bearing,which releases the horizontal reaction force of the bearing through a large displacement;The other side was provided with a relatively rigid friction pendulum isolation bearing and a viscous damper to improve the anti⁃fatigue performance of equipment pipelines,so as to meet the needs of safety and usability more reasonably.The dynamic elastic⁃plastic analysis of the conjoined twin towers was carried out,and the selection of the isolation bearing with different parameters,the maximum vector displacement of the friction pendulum isolation bearing,the influence of vertical force on the friction pendulum isolation bearing,etc.were analyzed.The results show that the seismic isolation bearing parameters selected according to the difference of performance requirements can better match the building function and have sufficient safety reserves.

关 键 词：连体结构 隔震设计 参数不对称 摩擦摆隔震支座 黏滞阻尼器 最大矢量位移 

分 类 号：TU352􀆰[建筑科学—结构工程]