某超限多塔高层结构连廊大震弹塑性分析及其减震控制  

Elastoplastic behavior of large earthquake and its damping control in a multi-tower high-rise structure

作　　者：聂竹林 杨强 陈培宇 包嗣海 Nie Zhu-lin;Yang Qiang;Chen Pei-yu;Bao Si-hai(School of Civil Engineering,Guangzhou University,Guangzhou 510006,China)

机构地区：[1]广州大学土木工程学院,广东广州510006

出　　处：《工程抗震与加固改造》2020年第2期53-61,共9页Earthquake Resistant Engineering and Retrofitting

基　　金：国家自然科学基金项目(51378135、51408140);广州市羊城学者项目(1201581632);广州市科技计划项目(20160701051、201510010291)。

摘　　要：多塔连体结构中,连廊与塔楼间的连接一直都是结构设计中的难点。基于SAUSAGE软件平台,本文以珠海某大底盘四塔连体结构工程为背景,研究了在水平双向罕遇地震作用下,单塔、多塔和整体三种模型方案对采用滑动支座和速度型粘滞阻尼器连接的连廊结构地震响应及阻尼器耗能的影响。通过对连廊的动力弹塑性时程分析,对比分析了不同模型方案中连廊的减震效果。结果表明,在水平双向罕遇地震作用下,采用速度型粘滞阻尼器控制的设计方案能够发挥很好的耗能减震作用。但单塔和多塔模型方案,忽略了其他塔楼的影响,偏向于安全。实际工程中连廊的分析应采用整体模型分析,设计时应引起重视。In a multi-tower structure,the connection between the corridor and the tower has always been a difficult point in structural design.Based on the SAUSAGE software platform,the effects of single tower,multiple towers and the whole model on the seismic response and energy consumption of the dampers of the corridor structures connected by sliding supports and velocity viscous dampers under horizontal and bidirectional rare earthquake are studied.Through the dynamic elastoplastic time history analysis of the corridor,the shock absorption effect of the corridor in different model schemes is compared and analyzed.The results show that the design scheme with velocity viscous damper can exert good energy dissipation and shock absorption under the action of horizontal two-way rare earthquake.However,the single tower and multi-tower model schemes ignore the influence of other towers and prefer safety.The analysis of the corridor in the actual project should adopt the overall model,which should be paid attention.

关 键 词：多塔结构 连体结构 柔性连接 速度型粘滞阻尼器 连廊 弹塑性时程分析 

分 类 号：TU352.1[建筑科学—结构工程]