阻尼器布置方式对平台式连体不规则结构减震影响研究  

Study on effect of damper arrangements on seismic energy dissipation of platform-connected irregular structures

作　　者：王鑫 李慧峰 戴必辉 都来盼 廖文远 文乾鑫 Wang Xin;Li Hui-feng;Dai Bi-hui;Du Lai-pan;Liao Wen-yuan;Wen Qian-xin(School of Civil Engineering,Southwest Forestry University,Kunming 650224,China;School of Civil Engineering,Liaoning Technical University,Fuxin123000,China)

机构地区：[1]西南林业大学土木工程学院,云南昆明650224 [2]辽宁工程技术大学土木工程学院,辽宁阜新123000

出　　处：《工程抗震与加固改造》2024年第2期24-32,67,共10页Earthquake Resistant Engineering and Retrofitting

基　　金：国家自然科学基金项目(52268051);云南省科技厅项目(2017FD107)。

摘　　要：为研究阻尼器布置方式对不规则建筑结构耗能减震的影响,设置3种不同阻尼器布置方案,以8度区(0.2g)18层平台式连体结构建筑为研究对象,采用数值模拟的方法,使用PKPM进行结构设计,使用Etabs进行补充复核及地震作用下的时程分析,并将3种阻尼器布置方案下的减震结构与非减震结构的地震反应进行对比分析。结果表明,采用耗能减震设计之后,结构在地震作用下层间位移角及基底剪力等均有着明显的减小。阻尼器分散布置时,对结构层间位移角控制较好,可以提供较大的附加阻尼比,能量耗散多;当阻尼器采取集中布置时对结构的基底剪力控制较好。以层间位移角为控制目标首选分散布置方案,以基底剪力为控制目标时首选集中布置方案。In order to study on the influence of damper layouts on energy dissipation of an irregular structure,a 18-story platformconjoined structure at seismic fortification level 8(O.2g)was designed by software PKPM,and checked by software ETABS.Then seismic time history analyses of three different layouts of dampers in the 18-story structures were carried out by software ETABS.Finally the results of dynamic response for 3 kinds of additionally damped structures and for the non-additionally damped structure were compared.The results show that inter-story drift angles and base shear force in the structure considered energy dissipation design are notably reduced.When the dampers are separately arranged,the inter-story drift angle of the structure is controlled better,a larger additional damping ratio is provided and more energy is dissipated.When the dampers are centrally arranged,the base shear force of the structure is controlled better.When inter-store drift angle is taken as the control target,the separate arrangement is priority.When the base shear force is taken as the control target,the centralized arrangement is priority.

关 键 词：耗能减震 时程分析 黏滞阻尼器 附加阻尼比 

分 类 号：TU973.31[建筑科学—结构工程]