隔震技术在砌体结构抗震加固中的应用研究
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摘要
本文以抗震设防9度区的一多层砌体结构作为算例,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。分析结果表明采用隔震技术进行抗震加固,可通过降低隔震层上部结构的抗震设防烈度来降低其抗震鉴定标准,从而使其满足抗震鉴定的要求,达到抗震加固的目的。在抗震设防高烈度区采用隔震加固方法进行砌体结构的抗震加固比常规方法具有明显的优势。
In this paper,a multi-story masonry structure,seismic fortification intensity of which is 9 and needed to be enforced,is regarded as an analysis model to discuss the computational analysis method,construction technology and corresponding key technology of seismic enforcement of multi-story masonry buildings used isolation technology.The analysis results show that using isolation technology to reinforcement can reduce the seismic identification standard by reducing the fortification intensity of the superstructure of isolation story,so the seismic identification requirements are satisfied,and seismic enforcement object is attained.In seismic country,the isolation reinforcement method takes obvious superiority to general seismic enforcement method of masonry structure.
In this paper,a multi-story masonry structure,seismic fortification intensity of which is 9 and needed to be enforced,is regarded as an analysis model to discuss the computational analysis method,construction technology and corresponding key technology of seismic enforcement of multi-story masonry buildings used isolation technology.The analysis results show that using isolation technology to reinforcement can reduce the seismic identification standard by reducing the fortification intensity of the superstructure of isolation story,so the seismic identification requirements are satisfied,and seismic enforcement object is attained.In seismic country,the isolation reinforcement method takes obvious superiority to general seismic enforcement method of masonry structure.
引文
[1]张熙光,王骏孙,刘惠珊.建筑抗震鉴定加固手册[M].北京:中国建筑工业出版社,2001
[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
[3]徐忠根,周福霖,孔玲.国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
[4]GB50023-95,建筑抗震鉴定标准[S]
[5]GB50011-2001,建筑抗震设计规范[S]
[6]王曙光,刘伟庆,冯陈.宿迁市府苑小区某商住楼隔震设计[J].世界地震工程,2001,17(4):139～142
[7]刘伟庆,等.宿迁市府苑小区综合楼隔震分析[J].建筑结构,2003,33(8):38～40
[8]毛桂平,黄小许.砌体结构承重墙体的框式托换技术[J].建筑技术,2004,35(6):441～442
[9]GB50003-2001,砌体结构设计规范[S]
[10]苏春生,等.砌体结构隔震设计方法及应用[J].建筑科学,2002,18(6):20～23
[11]周福霖.工程结构减震控制[M].北京:地震出版社,1997
[12]吕西林.建筑结构加固设计[M].北京:科学出版社,2001
[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
[3]徐忠根,周福霖,孔玲.国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
[4]GB50023-95,建筑抗震鉴定标准[S]
[5]GB50011-2001,建筑抗震设计规范[S]
[6]王曙光,刘伟庆,冯陈.宿迁市府苑小区某商住楼隔震设计[J].世界地震工程,2001,17(4):139～142
[7]刘伟庆,等.宿迁市府苑小区综合楼隔震分析[J].建筑结构,2003,33(8):38～40
[8]毛桂平,黄小许.砌体结构承重墙体的框式托换技术[J].建筑技术,2004,35(6):441～442
[9]GB50003-2001,砌体结构设计规范[S]
[10]苏春生,等.砌体结构隔震设计方法及应用[J].建筑科学,2002,18(6):20～23
[11]周福霖.工程结构减震控制[M].北京:地震出版社,1997
[12]吕西林.建筑结构加固设计[M].北京:科学出版社,2001
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