基于墙体面积的砌体结构抗震性能研究
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摘要
砌体结构房屋的设计表现为建筑布置决定结构墙体的数量及面积。在地震作用下,地震力由地震方向的墙体承担,墙体数量越多,墙体面积越大,房屋抗震能力就越强,所以墙体面积对砌体结构抗震研究有着至关重要的影响。研究这一问题的主要途径之一就是从地震震害中找出墙体面积与结构破坏之间的规律,通过对2008年汶川地震中大量震损房屋震害的分析,研究墙体面积与结构破坏程度之间的关系,并在现有砌体结构抗震性能评估理论的基础上,提出一个基于墙体面积大小的指标即墙率来评估砌体结构的抗震性能。将墙率指标应用于一幢多层砌体结构房屋的抗震性能评估中,并通过与现场震害的对比说明该指标的合理性,结果表明,墙率可以用于评估砌体结构的抗震性能。
Building layout determines the number of structural wall and wall area in the design of masonry structure building.In the earthquake,the seismic force is beared by the wall in the direction of earthquake.The larger wall area,the stronger the seismic capacity.Therefore,the wall area has a critical influence on masonry seismic research.One of the main ways for studying this problem is to find out the rules between the wall area and structure damage in the earthquake.By analyzing of a large number of damaged houses in the Wenchuan earthquake in 2008,the relationship of the wall area and buildings damage is studied,and based on the existing theory of masonry structure seismic performance assessment,the indicator of the wall areas,which is the wall ratio,is proposed to assess the seismic performance of masonry structures.The wall ratio was applied to the seismic performance evaluation of a multi-storey masonry structure housing,this index is reasonable through comparing the on-site damage.The result shows the wall ratio can evaluate the seismic performance of the masonry buildings.
Building layout determines the number of structural wall and wall area in the design of masonry structure building.In the earthquake,the seismic force is beared by the wall in the direction of earthquake.The larger wall area,the stronger the seismic capacity.Therefore,the wall area has a critical influence on masonry seismic research.One of the main ways for studying this problem is to find out the rules between the wall area and structure damage in the earthquake.By analyzing of a large number of damaged houses in the Wenchuan earthquake in 2008,the relationship of the wall area and buildings damage is studied,and based on the existing theory of masonry structure seismic performance assessment,the indicator of the wall areas,which is the wall ratio,is proposed to assess the seismic performance of masonry structures.The wall ratio was applied to the seismic performance evaluation of a multi-storey masonry structure housing,this index is reasonable through comparing the on-site damage.The result shows the wall ratio can evaluate the seismic performance of the masonry buildings.
引文
[1]张建勋.砌体结构[M.]武汉:武汉理工大学出版,2009
[2]The European Committee for Standardization.Eurocode 8Design of structures for earthquake resistance[S.]Brussels:CEN,2003
[3]Lourenco P B,Roque J A.Simplified indexes for theseismic vulnerability of ancient masonry buildings[J.]Construction and Building Materials,2006,20:200-208
[4]Moroni M O,Astroza M,Acevedo C.Performance andseismic vulnerability of masonry housing types used in chile[J.]Journal of Performance of Constructed Facilities,2004,18(3):173-179
[5]朱昌廉.住宅建筑设计原理[M.]北京:中国建筑工业版社,1999
[6]彭一刚.建筑空间组合论[M].北京:中国建筑工业出版社,2008
[7]潘谷西.中国建筑史[M].北京:中国建筑工业出版社,2009
[8]GB 50011—2001建筑抗震设计规范[S].北京:中国建筑工业出版社,2001(GB 50011—2001 Code for seismicdesign of buildings[S.]Beijing:China Architecture&Building Press,2001(in Chinese))
[9]GB 50003—2001砌体结构设计规范[S].北京:中国建筑工业出版社,2001(GB 50003—2001 Code for designof masonry buildings[S].Beijing:China Architecture&Building Press,2002(in Chinese))
[10]GB 50023—2009建筑抗震鉴定标准[S].北京:中国建筑工业出版社,2009(GB 50023—2009 Stand for seismicappraisal of buildings[S.]Beijing:China Architecture&Building Press,2009(in Chinese))
[11]叶列平,曲哲,陆新征,等.提高建筑结构抗地震倒塌能力的设计思想与方法[J].建筑结构学报,2008,29(4):42-50(Ye Lieping,Qu Zhe,Lu Xinzheng,et al.Collapse prevention of building structures:a lesson from theWenchuan earthquake[J.]Journal of Building Structures,2008,29(4):42-50(in Chinese))
[12]施炜,叶列平,陆新征,等.不同抗震设防RC框架结构抗倒塌能力研究[C]//第十二届高层建筑抗震技术交流会.北京,2009:46-57
[2]The European Committee for Standardization.Eurocode 8Design of structures for earthquake resistance[S.]Brussels:CEN,2003
[3]Lourenco P B,Roque J A.Simplified indexes for theseismic vulnerability of ancient masonry buildings[J.]Construction and Building Materials,2006,20:200-208
[4]Moroni M O,Astroza M,Acevedo C.Performance andseismic vulnerability of masonry housing types used in chile[J.]Journal of Performance of Constructed Facilities,2004,18(3):173-179
[5]朱昌廉.住宅建筑设计原理[M.]北京:中国建筑工业版社,1999
[6]彭一刚.建筑空间组合论[M].北京:中国建筑工业出版社,2008
[7]潘谷西.中国建筑史[M].北京:中国建筑工业出版社,2009
[8]GB 50011—2001建筑抗震设计规范[S].北京:中国建筑工业出版社,2001(GB 50011—2001 Code for seismicdesign of buildings[S.]Beijing:China Architecture&Building Press,2001(in Chinese))
[9]GB 50003—2001砌体结构设计规范[S].北京:中国建筑工业出版社,2001(GB 50003—2001 Code for designof masonry buildings[S].Beijing:China Architecture&Building Press,2002(in Chinese))
[10]GB 50023—2009建筑抗震鉴定标准[S].北京:中国建筑工业出版社,2009(GB 50023—2009 Stand for seismicappraisal of buildings[S.]Beijing:China Architecture&Building Press,2009(in Chinese))
[11]叶列平,曲哲,陆新征,等.提高建筑结构抗地震倒塌能力的设计思想与方法[J].建筑结构学报,2008,29(4):42-50(Ye Lieping,Qu Zhe,Lu Xinzheng,et al.Collapse prevention of building structures:a lesson from theWenchuan earthquake[J.]Journal of Building Structures,2008,29(4):42-50(in Chinese))
[12]施炜,叶列平,陆新征,等.不同抗震设防RC框架结构抗倒塌能力研究[C]//第十二届高层建筑抗震技术交流会.北京,2009:46-57
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