(华建集团华东建筑设计研究院有限公司, 上海 200011)

摘要: 对于建造年代较早的优秀历史建筑,由于早期材料强度低以及理论认知的局限性,结构整体抗震性能较差,使用传统加固方法提高建筑物的抗震性能与文物保护存在较大冲突. 结合结构顶升工艺恢复建筑历史原貌,通过增设隔震支座,显著提高历史保护建筑的整体抗震性能,并通过有限元软件对增设隔震支座后的结构进行了罕遇地震下的非线性动力时程分析,分析结果表明:隔震后的各部分构件均未发生严重破坏,满足罕遇地震下不超过“中度损伤”的抗震性能目标. 大幅减少结构加固对重点保护区域的影响,使文物建筑重焕光彩,满足现有使用功能的需求.

关键词: 历史保护建筑; 抗震性能; 隔震支座; 结构加固

中图分类号:TU352 文献标志码:A 文章编号: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:王玮,学士,高级工程师,一级注册结构工程师,主要从事复杂结构的设计和咨询,Email:wangwei8@ 126. com.

[引用本文] 王玮,花炳灿,姚激. 某历史保护建筑抗震性能提升的探索和研究 [ J] . 建筑结构,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.