中小学砌体结构校舍的隔震加固技术研究
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摘要
本文以抗震设防8度区的山西省某小学4层砌体结构教学楼抗震加固为背景,探讨了采用隔震技术对多层砌体房屋进行抗震加固的计算分析方法、施工工艺及相应的关键技术。结果表明,叠层橡胶垫基础隔震加固可以有效降低上部结构所受的地震作用,能够在一定程度上提高工程结构的安全性,是一种比较有效的建筑抗震加固技术。在高烈度区对砌体结构校舍进行抗震加固时,采用隔震加固技术比传统加固方法更具有优势。相关成果对于中小学砌体结构校舍抗震加固具有重要的参考价值。
The four-story masonry structure of a primary school in Shanxi Province,the seismic fortification intensity of which is 8 and is needed to be strengthened,is regarded as an background project to discuss the computational analysis method,construction technology and corresponding key technology of seismic strengthening of multi-story masonry buildings using isolation technology.The analysis results show that the base isolating method can decrease the seismic force acting on the above building structure effectively, and increase the structure safety in some degree.In high earthquake intensity regions,the isolation method has superiority to general seismic strengthening method of masonry structure.Relevant achievements for strengthening the seismic resistant capacity of masonry structure of primary and secondary schools have important reference value.
The four-story masonry structure of a primary school in Shanxi Province,the seismic fortification intensity of which is 8 and is needed to be strengthened,is regarded as an background project to discuss the computational analysis method,construction technology and corresponding key technology of seismic strengthening of multi-story masonry buildings using isolation technology.The analysis results show that the base isolating method can decrease the seismic force acting on the above building structure effectively, and increase the structure safety in some degree.In high earthquake intensity regions,the isolation method has superiority to general seismic strengthening method of masonry structure.Relevant achievements for strengthening the seismic resistant capacity of masonry structure of primary and secondary schools have important reference value.
引文
[1]李英民,韩军,刘立平,等.“5·12”汶川地震砌体结构房屋震害调查与分析[J].西安建筑科技大学学报(自然科学版),2009,41(5):606-611. Li Y M,Han J,Liu L P,et al.Investigation and analysis of masonry building damage caused by the 5·12 Wenchuan earthquake,Sichuan Province[J]. Journal of Xi'an University of Architecture and Technology (Natural Science Edition),2009,41(5):606- 611.
[2]李黎,李健,唐家祥.用隔震技术提高已有建筑的抗震能力[J].华中科技大学学报(城市科学版),2002, 19(1):68-72. Li L,Li J,Tang J X.Using seismic isolation technologyto enforce the earthquake resistant capability of buildings[J].Journal of Huazhong University of Science and Technology(Urban Science Edition),2002, 19(1):68-72.
[3]郭健,刘伟庆,王曙光,等.隔震技术在砌体结构抗震加固中的应用研究[J].工程抗震与加固改造,2008,30 (1):43-54. Guo J,Liu W Q,Wang S G,et al.Applying base isolated technology to enforce the seismic resistant of masonry structure[J].Earthquake Resistant Engineering and Retrofitting,2008,30(1):43-54.
[4]李爱群.工程结构减振控制[M].北京:机械工业出版社,2007.
[5]徐忠根,周福霖,孔玲.国内外建筑隔震改造加固概述[J].华南建设学院西院学报,1999,7(2):14-20. Xu Z G,Zhou F L,Kong L.A survey of retrofitting building with isolation technique at home and abroad [J].Journal of South China Construction University (West Campus),1999,7(2):14-20.
[6]GB 50223-2008,建筑抗震设防分类标准[S].
[7]GB 50023-2009,建筑抗震鉴定标准[S].
[8]JGJ 116-2009,建筑抗震加固技术规程[S].
[9]GB 50011-2001,建筑抗震设计规范[S].
[10]魏陆顺,刘文光,周福霖,等.一座空旷砖混厂房结构的隔震加固[J].世界地震工程,2003,19(3):123-128. Wei L S,Liu W G,Zhou F L,et al.Application of base isolation to reinforcement for a single-story spacious building[J].World Earthquake Engineering, 2003,19(3):123-128.
[11]CECS 126:2001,叠层橡胶支座隔震技术规程[S].
[12]李爱群,吴二军,高仁华.建筑物整体迁移技术[M].北京:中国建筑工业出版社,2006.
[13]GB 50003-2001,砌体结构设计规范[S].
[2]李黎,李健,唐家祥.用隔震技术提高已有建筑的抗震能力[J].华中科技大学学报(城市科学版),2002, 19(1):68-72. Li L,Li J,Tang J X.Using seismic isolation technologyto enforce the earthquake resistant capability of buildings[J].Journal of Huazhong University of Science and Technology(Urban Science Edition),2002, 19(1):68-72.
[3]郭健,刘伟庆,王曙光,等.隔震技术在砌体结构抗震加固中的应用研究[J].工程抗震与加固改造,2008,30 (1):43-54. Guo J,Liu W Q,Wang S G,et al.Applying base isolated technology to enforce the seismic resistant of masonry structure[J].Earthquake Resistant Engineering and Retrofitting,2008,30(1):43-54.
[4]李爱群.工程结构减振控制[M].北京:机械工业出版社,2007.
[5]徐忠根,周福霖,孔玲.国内外建筑隔震改造加固概述[J].华南建设学院西院学报,1999,7(2):14-20. Xu Z G,Zhou F L,Kong L.A survey of retrofitting building with isolation technique at home and abroad [J].Journal of South China Construction University (West Campus),1999,7(2):14-20.
[6]GB 50223-2008,建筑抗震设防分类标准[S].
[7]GB 50023-2009,建筑抗震鉴定标准[S].
[8]JGJ 116-2009,建筑抗震加固技术规程[S].
[9]GB 50011-2001,建筑抗震设计规范[S].
[10]魏陆顺,刘文光,周福霖,等.一座空旷砖混厂房结构的隔震加固[J].世界地震工程,2003,19(3):123-128. Wei L S,Liu W G,Zhou F L,et al.Application of base isolation to reinforcement for a single-story spacious building[J].World Earthquake Engineering, 2003,19(3):123-128.
[11]CECS 126:2001,叠层橡胶支座隔震技术规程[S].
[12]李爱群,吴二军,高仁华.建筑物整体迁移技术[M].北京:中国建筑工业出版社,2006.
[13]GB 50003-2001,砌体结构设计规范[S].
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