考虑竖向地震作用的连体结构地震易损性分析  

SEISMIC VULNERABILITY ANALYSIS OF CONNECTING STRUCTURE CONSIDERING VERTICAL SEISMIC ACTION

作　　者：姜治军 钟荣强 魏春明[2] 张贺 李胜才[1,2] 张磊 JIANG Zhi-jun;ZHONG Rong-qiang;WEI Chun-ming;ZHANG He;LI Sheng-cai;ZHANG Lei(College of Civil Science and Engineering,Yangzhou University,225000,Yangzhou,Jiangsu,China;Jiangsu Huajian Construction Co.,Ltd.,225002,Yangzhou,Jiangsu,China)

机构地区：[1]扬州大学建筑科学与工程学院,扬州225000 [2]江苏省华建建设股份有限公司,扬州225002

出　　处：《建筑技术》2024年第16期2024-2029,共6页Architecture Technology

摘　　要：为了探讨竖向地震分量对连体建筑结构抗震性能的影响,以某连体结构为例,利用增量动力分析方法研究了水平地震作用、水平向与竖向联合作用下连体结构的地震响应及易损性。结果表明:与水平向地震动作用相比,在竖向与水平向地震动联合作用下,连体结构最大层间位移角明显较大,二者之间的差异随着地震动幅值的增加而增加;竖向地震的作用增加了连体结构发生各级破坏的概率,显著增加了其发生“修复后使用”及以上等级破坏的可能性,但总体而言,三向地震作用下该连体结构仍满足“小震不坏、中震可修、大震不倒”的抗震设防目标。In order to explore the influence of vertical seismic components on the seismic performance of connected building structures,taking a connected structure as an example,the incremental dynamic analysis was used to study the seismic response and vulnerability of the connected structure under horizontal seismic action and the combined action of horizontal and vertical directions.The results show that compared with the horizontal seismic action,the maximum inter-story drift ratio of the connected structure is significantly larger than that under the combined action of vertical and horizontal seismic effects,and the difference between the two increases with the increase of seismic amplitude;The vertical seismic effects increases the probability of various levels of damage to the connected structure,significantly increasing the possibility of"repair after use"and above level damage.However,overall,under the action of three-dimensional seismic,the connected structure still meets the seismic fortification goals of"not damaged by small earthquakes,repairable by medium earthquakes,and not collapsed by large earthquakes".

关 键 词：连体结构 竖向地震作用 增量动力分析 地震易损性 抗震性能 

分 类 号：TU74[建筑科学—建筑技术科学]