大震下四塔柔性连体超高层连廊减震控制  

Damping control of corridor of four-tower super high-rise flexible conjoined structure in rare earthquakes

作　　者：聂竹林 孙磊 杨强 张永山[1] NIE Zhu-lin;SUN Lei;YANG Qiang;ZHANG Yong-shan(School of Civil Engineering,Guangzhou University,Guangzhou 510006,China;Walton Design&Consulting Engineering Co.,Ltd.,Beijing 100034,China)

机构地区：[1]广州大学土木工程学院,广东广州510006 [2]华通设计顾问工程有限公司,北京100034

出　　处：《广西大学学报（自然科学版）》2021年第3期526-537,共12页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(51378135、51408140)。

摘　　要：多塔连体结构体系中,其连廊和连廊与塔楼间连接形式一直是结构设计中的关键难点。以珠海横琴铁建广场大底盘四塔连体结构工程为背景,基于SAUSAGE软件平台,探究了在水平双向罕遇地震作用下,高度和动力特性相差较大的四个塔楼之间采用刚性连接和柔性连接并存的钢连廊结构的地震响应及阻尼器限位耗能减震效果。对整体模型进行动力弹塑性时程分析,在对采用滑动支座和速度型粘滞阻尼器连接的连廊阻尼器布置方案优化时发现,由于连廊的连接作用,体型和高度不一致且布置不对称的四个塔楼地震动力响应存在耦合作用,阻尼器的布置形式对连廊的减震效果有着不可忽略的影响,对同类工程中如何找到最优阻尼器布置方案有着一定的工程实用价值,供工程设计人员参考。In the multi-tower conjoined structure system,the difficulty of structural design is the connecting form of the corridors and the connecting form between the corridor and the tower.Taking the four towers conjoined structure project of the large chassis of Hengqin Iron Construction Square in Zhuhai as the background,this paper,on the basis of SAUSAGE software platform,explored the seismic response and damper limit energy dissipation effect of a steel corridor structure with rigid and flexible connections between four towers with large differences in height and dynamic characteristics under simulated horizontal and bidirectional rare earthquakes.Dynamic elastoplastic time history analysis was carried out on the whole model.In optimizing the arrangement scheme of the corridor damper connected by the sliding support and the speed-type sticky block damper,we found that due to the connection of the corridors,the seismic dynamic response of the four towers with inconsistent shape and height and asymmetrical arrangement has coupling effect,and the arrangement form of the damper has an unnegligible effect on the shock absorption effect of the corridor.This study has practical value for finding the optimal arrangement scheme of damper in similar engineering.

关 键 词：多塔结构 连体结构 柔性连接 VD布置形式 连廊 弹塑性时程分析 

分 类 号：TU352.1[建筑科学—结构工程]