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(華建集團(tuán)華東建筑設(shè)計(jì)研究院有限公司, 上海 200011)

摘要: 對(duì)于建造年代較早的優(yōu)秀歷史建筑,由于早期材料強(qiáng)度低以及理論認(rèn)知的局限性,結(jié)構(gòu)整體抗震性能較差,使用傳統(tǒng)加固方法提高建筑物的抗震性能與文物保護(hù)存在較大沖突. 結(jié)合結(jié)構(gòu)頂升工藝恢復(fù)建筑歷史原貌,通過增設(shè)隔震支座,顯著提高歷史保護(hù)建筑的整體抗震性能,并通過有限元軟件對(duì)增設(shè)隔震支座后的結(jié)構(gòu)進(jìn)行了罕遇地震下的非線性動(dòng)力時(shí)程分析,分析結(jié)果表明:隔震后的各部分構(gòu)件均未發(fā)生嚴(yán)重破壞,滿足罕遇地震下不超過“中度損傷”的抗震性能目標(biāo). 大幅減少結(jié)構(gòu)加固對(duì)重點(diǎn)保護(hù)區(qū)域的影響,使文物建筑重?zé)ü獠?滿足現(xiàn)有使用功能的需求.

關(guān)鍵詞: 歷史保護(hù)建筑; 抗震性能; 隔震支座; 結(jié)構(gòu)加固

中圖分類號(hào):TU352 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002-848X(2022)03-0067-06

DOI:10. 19701 / j. jzjg. LS201860

Research and exploration on the seismic performance improvement of historical building

WANG Wei, HUA Bingcan, YAO Ji

(East China Architectural Design & Research Institute Co., Ltd., Arcplus Group, Shanghai 200011, China)

Abstract: For the early-built outstanding historical buildings, the overall seismic performance of the structure is poor due tothe low strength of early materials and the limitations of theoretical cognition. The using of traditional reinforcement methodsto improve the seismic performance of buildings is in conflict with the protection of cultural relics. Combining with thestructural jacking process to restore the original appearance of the building, by adding the seismic isolation bearings, theoverall seismic performance of the historical building was significantly improved, and the finite element software was used toanalyze the nonlinear dynamic time history of the structure with isolation bearings under rare earthquakes. The analysisresults show that no serious damage has occurred to each part of the structure above the isolation bearings, which meets theseismic performance target of no more than " moderate damage " under rare earthquakes. The impact of structuralreinforcement on the key protection areas is greatly reduced, so that the cultural relic building re-luster, to meet the needsof the new function.

Keywords:historical building; seismic performance; isolation bearing; structural reinforcement

第一作者:王瑋,學(xué)士,高級(jí)工程師,一級(jí)注冊(cè)結(jié)構(gòu)工程師,主要從事復(fù)雜結(jié)構(gòu)的設(shè)計(jì)和咨詢,Email:wangwei8@ 126. com.

[引用本文] 王瑋,花炳燦,姚激. 某歷史保護(hù)建筑抗震性能提升的探索和研究 [ J] . 建筑結(jié)構(gòu),2022,52 ( 3) :67-72. WANG Wei,HUA Bingcan,YAO Ji. Research and exploration on the seismic performance improvement of historicalbuilding[ J] . Building Structure,2022,52(3) :67-72.