云南农村土木结构房屋有限元抗震分析
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摘要
根据2007年6月3日宁洱6.4级地震现场调查结果,对破坏较严重的土坯房建立了地震分析模型。对不同的开间、进深及檐口高的房屋,输入了3类场地超越概率为63%及超越概率为3%的地震波进行了有限元抗震分析。结果表明:墙厚影响不大,墙高的影响较大,墙高增加,破坏性增加;因此建议在满足使用功能的前提下,不增加墙厚,而减少层高对抗震更为有利,最后提出了相应的抗震加固措施。
Based on the site investigation of Ning'er M6.4 earthquake on Jun.3,2007,we construct the earthquake analysis models for the severe damaged adobe houses.Using finite element method,we analyze aseismic of civil structure houses in different bays,depths and eaves heights when inputting 3 kinds of seismic waves are modeled by exceedance probability of 63% and 3% within 50 years respectively.The results show that the storey height has a greater influence than wall thickness on the aseismic of civil structure houses.The higher of storey height,the more of ruinous cracks occurred.We suggest that reducing the storey height and maintaining the basic wall thickness has more advantage to aseismic for the civil structure house under the prerequisite tosatisfy and propose the measure of anti-seismic reinforcement.
Based on the site investigation of Ning'er M6.4 earthquake on Jun.3,2007,we construct the earthquake analysis models for the severe damaged adobe houses.Using finite element method,we analyze aseismic of civil structure houses in different bays,depths and eaves heights when inputting 3 kinds of seismic waves are modeled by exceedance probability of 63% and 3% within 50 years respectively.The results show that the storey height has a greater influence than wall thickness on the aseismic of civil structure houses.The higher of storey height,the more of ruinous cracks occurred.We suggest that reducing the storey height and maintaining the basic wall thickness has more advantage to aseismic for the civil structure house under the prerequisite tosatisfy and propose the measure of anti-seismic reinforcement.
引文
陈伟,孟丽军,段树金.2005.农村建筑抗震调查的综合分析[J].山西建筑,31(9):43-44.
高惠瑛,张铁军,黄声明,等.2010.福建省农村房屋抗震性能调查与现状分析[J].灾害学,25(增刊):243-247.
郭阳照,黄慧敏,郭永恒.2006.“7·22”云南盐津地震房屋震害分析[J].震害防御技术,1(4):353-358.
何超,罗奇峰.2010.山东西北部某县农村房屋抗震性能分析[J].结构工程师,26(1):50-55.
卢永坤,周光全,郑定昌,等.2007.昆明市“城中村”民房抗震能力调查[J].地震研究,30(1):72-76.
王俊特.2009.从汶川震害浅谈我省闽南农村地区砌体房屋结构的抗震能力[J].福建建筑,(7):52-53.
杨向东,安晓文.2001.姚安6.5级地震中房屋震害差异的原因分析[J].地震研究,24(2):156-161.
曾耀辉.2010.关于提高农村土木房屋抗震能力的思考[J].安徽农业科技,(16):8809-8810.
GB50003-2001,砌体结构设计规范[S].
高惠瑛,张铁军,黄声明,等.2010.福建省农村房屋抗震性能调查与现状分析[J].灾害学,25(增刊):243-247.
郭阳照,黄慧敏,郭永恒.2006.“7·22”云南盐津地震房屋震害分析[J].震害防御技术,1(4):353-358.
何超,罗奇峰.2010.山东西北部某县农村房屋抗震性能分析[J].结构工程师,26(1):50-55.
卢永坤,周光全,郑定昌,等.2007.昆明市“城中村”民房抗震能力调查[J].地震研究,30(1):72-76.
王俊特.2009.从汶川震害浅谈我省闽南农村地区砌体房屋结构的抗震能力[J].福建建筑,(7):52-53.
杨向东,安晓文.2001.姚安6.5级地震中房屋震害差异的原因分析[J].地震研究,24(2):156-161.
曾耀辉.2010.关于提高农村土木房屋抗震能力的思考[J].安徽农业科技,(16):8809-8810.
GB50003-2001,砌体结构设计规范[S].
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