填充墙框架结构架空层剪力放大系数探讨
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摘要
推导了底部架空的填充墙框架结构的侧移模式,用基于位移的抗震设计方法分别得到大震和小震下架空层的基底剪力和剪力放大系数β,对影响β值的参数以及β的取值范围进行了分析探讨,并得到相应的计算图表,可较方便地通过小震计算进行架空层抗大震倒塌的计算。算例计算表明该方法简单可行,并通过倒塌率的计算验证了方法的有效性。
According to the lateral displacement mode of overhead layer of infilled frame and the anti-seismic design method based on displacement,the base shear and the shear amplification coefficient β of overhead layer under strong and small earthquake were obtained.According to analysis and research of the parameters that influencing β and the range of β,the corresponding nomograph was got,and the calculation of collapse resistance under strong earthquake could be gained more easily through calculation under small earthquake.The calculating example indicates that the method is simple and feasible,and the calculation of collapsing ratio proves that the method is effective.
According to the lateral displacement mode of overhead layer of infilled frame and the anti-seismic design method based on displacement,the base shear and the shear amplification coefficient β of overhead layer under strong and small earthquake were obtained.According to analysis and research of the parameters that influencing β and the range of β,the corresponding nomograph was got,and the calculation of collapse resistance under strong earthquake could be gained more easily through calculation under small earthquake.The calculating example indicates that the method is simple and feasible,and the calculation of collapsing ratio proves that the method is effective.
引文
[1]GB50011—2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.
[2]曹万林,王光远,吴建有,等.轻质填充墙异型柱框架结构层刚度及其衰减过程的研究[J].建筑结构学报,1995,16(5):20-31.
[3]程志辉,陈辉明.首层架空多层框架结构的抗地震倒塌简化验算[J].建筑结构,2011,41(4):105-108.
[4]程志辉,陈辉明.带填充墙框架结构架空层的抗倒塌评估与加固设计[J].工程抗震与加固改造,2011,33(3):75-81.
[5]梁兴文,王雅捷,杨其伟.钢筋混凝土框架结构基于位移的抗震设计方法研究[J].土木工程学报,2005,38(9):53-60.
[6]陈辉明.底层架空的填充墙框架结构抗地震倒塌能力研究[D].广州:华南理工大学,2011.
[7]王亚勇,高孟潭,叶列平,等.基于大震和特大震下倒塌率目标的建筑抗震设计方法研究方案[C]//第八届全国地震工程学术会议论文集,重庆,2010:291-297.
[8]APPLIED TECHNOLOGY COUNCIL,FEDERALEMERGENCY MANAGEMENT AGENCY.Quantificationof Building Seismic Performance Factors[R].America:FEMA,2008.
[2]曹万林,王光远,吴建有,等.轻质填充墙异型柱框架结构层刚度及其衰减过程的研究[J].建筑结构学报,1995,16(5):20-31.
[3]程志辉,陈辉明.首层架空多层框架结构的抗地震倒塌简化验算[J].建筑结构,2011,41(4):105-108.
[4]程志辉,陈辉明.带填充墙框架结构架空层的抗倒塌评估与加固设计[J].工程抗震与加固改造,2011,33(3):75-81.
[5]梁兴文,王雅捷,杨其伟.钢筋混凝土框架结构基于位移的抗震设计方法研究[J].土木工程学报,2005,38(9):53-60.
[6]陈辉明.底层架空的填充墙框架结构抗地震倒塌能力研究[D].广州:华南理工大学,2011.
[7]王亚勇,高孟潭,叶列平,等.基于大震和特大震下倒塌率目标的建筑抗震设计方法研究方案[C]//第八届全国地震工程学术会议论文集,重庆,2010:291-297.
[8]APPLIED TECHNOLOGY COUNCIL,FEDERALEMERGENCY MANAGEMENT AGENCY.Quantificationof Building Seismic Performance Factors[R].America:FEMA,2008.
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