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(北京弘石嘉業(yè)建筑設(shè)計有限公司, 北京 100016)
摘要: 依托于山西某殘疾人服務(wù)中心實際工程項目,對其 A 單體結(jié)構(gòu)進行抗震性能研究,并以 A 單體結(jié)構(gòu)的 1、2層為例,探究墻式支撐阻尼器對結(jié)構(gòu)減震效果的影響. 對 A 單體結(jié)構(gòu) 1、2 層各布置了 8 個鉛扭轉(zhuǎn)型阻尼器,采用墻式支撐連接形式. 在確定了結(jié)構(gòu)的減震設(shè)計方案基礎(chǔ)上,采用 ETABS 軟件和 SAP2000 軟件對結(jié)構(gòu)進行了多遇地震下彈性時程分析及罕遇地震下彈塑性時程分析,采用規(guī)范應(yīng)變能法及能量比法對結(jié)構(gòu)附加阻尼比進行了計算. 結(jié)果表明:在多遇地震作用下,結(jié)構(gòu)彈性變形能夠符合規(guī)范要求,達到“小震不壞”的設(shè)計目標;罕遇地震下,在達到性能點時,結(jié)構(gòu)僅框架梁屈服,能夠達到“大震不倒” 的設(shè)計目標;采用墻式支撐阻尼器后,該結(jié)構(gòu)具有較好的減震效果.
關(guān)鍵詞: 墻式支撐阻尼器; 鉛扭轉(zhuǎn)型阻尼器; 減震設(shè)計; 附加阻尼比
中圖分類號:TU398. 7 文獻標志碼:A 文章編號: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:張新發(fā),碩士,一級注冊結(jié)構(gòu)工程師,主要從事混凝土結(jié)構(gòu)設(shè)計、減隔震設(shè)計,Email:598310448@ qq. com.
[引用本文] 張新發(fā),楊靜鵬. 墻式支撐阻尼器在某殘疾人服務(wù)中心的應(yīng)用[ J] . 建筑結(jié)構(gòu), 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.
