(北京弘石嘉业建筑设计有限公司, 北京 100016)

摘要: 依托于山西某残疾人服务中心实际工程项目,对其 A 单体结构进行抗震性能研究,并以 A 单体结构的 1、2层为例,探究墙式支撑阻尼器对结构减震效果的影响. 对 A 单体结构 1、2 层各布置了 8 个铅扭转型阻尼器,采用墙式支撑连接形式. 在确定了结构的减震设计方案基础上,采用 ETABS 软件和 SAP2000 软件对结构进行了多遇地震下弹性时程分析及罕遇地震下弹塑性时程分析,采用规范应变能法及能量比法对结构附加阻尼比进行了计算. 结果表明:在多遇地震作用下,结构弹性变形能够符合规范要求,达到“小震不坏”的设计目标;罕遇地震下,在达到性能点时,结构仅框架梁屈服,能够达到“大震不倒” 的设计目标;采用墙式支撑阻尼器后,该结构具有较好的减震效果.

关键词: 墙式支撑阻尼器; 铅扭转型阻尼器; 减震设计; 附加阻尼比

中图分类号:TU398. 7 文献标志码:A 文章编号:1002-848X(2022)05-0070-05

DOI:10. 19701 / j. jzjg. 20210070

Application of wall support damper in a disabled service center

ZHANG Xinfa, YANG Jingpeng

( Hongshi Design, Beijing 100016, China)

Abstract: Based on a actual project of a disabled service center in Shanxi Province, the seismic performance of A singlestructure was studied. Taking the 1st and 2nd floors of A single structure as an example, the influence of wall supportdamper on the structural damping effect was explored. Eight lead torsional dampers were arranged on the 1st and 2nd floorsof A single structure, and the wall support connection was adopted. On the basis of determining the damping design schemeof the structure, ETABS software and SAP2000 software were used to conduct the elastic time-history analysis of thestructure under frequent earthquake and the elastic-plastic time-history analysis of the structure under rare earthquake,andadditional damping ratio of structure was calculated by code strain energy method and energy ratio method. The results showthat elastic deformation of structure meets the requirement of the code under frequent earthquake, which could reach thedesign goal of " undamaged under frequent earthquake" ;only the frame beam yields when the performance point is reachedunder rare earthquake, which could reach the design goal of " no collapse under rare earthquake" ;the structure has gooddamping effect after adopting wall support damper.

Keywords:wall support damper; Lead torsional damper seismic damping design; additional damping ratio

第一作者:张新发,硕士,一级注册结构工程师,主要从事混凝土结构设计、减隔震设计,Email:598310448@ qq. com.

[引用本文] 张新发,杨静鹏. 墙式支撑阻尼器在某残疾人服务中心的应用[ J] . 建筑结构, 2022, 52( 5) :70-74.ZHANG Xinfa,YANG Jingpeng. Application of wall support damper in a disabled service center[ J] . Building Structure,2022,52(5) :70-74.