考虑地震行波效应的渡槽动力响应分析
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摘要
以南水北调中线漕河渡槽为研究对象,考虑在地震行波效应问题中,采用支座大质量法实现多点地震输入,并与一致输入的结果进行对比。结果表明:地震波多点输入考虑行波效应时,渡槽结构纵向位移峰值可增大数倍;地震效应对横向位移值的影响最为显著,对竖向位移值和应力分量的影响不大;在行波效应影响下,纵向位移和横向位移有增大趋势,竖向位移、第一主应力和第三主应力呈减小趋势。
As the research object to the South-to-North Water Transfer Project of the Caohe Aqueduct,considered earthquake with the traveling wave effect,with support large mass method to realize multi-site earthquake input,it compared with the results from uniform excitation.The results show that,when consider the traveling wave effect,the longitudinal displacement response peak of aqueduct will increase several times,lateral displacement response in the most significant influence,for other displacement and stress components of no significant impact;traveling wave effect to structural response of different influence law,the longitudinal displacement and transverse displacement increase with the trend,vertical displacement,the first principal stress and the third principal stress show a trend of decrease.
As the research object to the South-to-North Water Transfer Project of the Caohe Aqueduct,considered earthquake with the traveling wave effect,with support large mass method to realize multi-site earthquake input,it compared with the results from uniform excitation.The results show that,when consider the traveling wave effect,the longitudinal displacement response peak of aqueduct will increase several times,lateral displacement response in the most significant influence,for other displacement and stress components of no significant impact;traveling wave effect to structural response of different influence law,the longitudinal displacement and transverse displacement increase with the trend,vertical displacement,the first principal stress and the third principal stress show a trend of decrease.
引文
[1]李声平,彭翠玲,吴杰芳.大型U形双渡槽结构动力分析[J].长江科学院院报,2005,22(4):68-71.
[2]赵顺波,刘祖军,刘树玉.上承式板拱渡槽结构动力性能分析研究[J].水利水电技术,2007,38(10):33-35.
[3]邵岩,马秀梅,赵兰浩.考虑水体作用的渡槽动力响应计算方法比较[J].南水北调与水利科技,2007,5(2):78-80.
[4]张建华,杨志超,兰文改.矩形沙河渡槽的动力响应分析[J].华北水利水电学院学报,2009(1):23-27.
[5]冯领香.渡槽结构多点地震输入的抗震分析[D].石家庄:河北农业大学,2004.
[6]李彦军,王贺,吴迪.大型渡槽结构抗震分析研究[J].人民黄河,2010,32(1):100-103.
[7]安妮特.博格勒.轻.远-德国约格.施菜希和鲁道夫.贝格曼德的轻型结构[M].北京:中国建筑工业出版社,2004.
[8]何庆祥,沈祖炎.结构地震行波效应分析综述[J].地震工程与工程振动,2009,29(1):50-57.
[9]彭刚,张国栋.土木工程结构振动控制[M].武汉:武汉理工大学出版社,2002.
[2]赵顺波,刘祖军,刘树玉.上承式板拱渡槽结构动力性能分析研究[J].水利水电技术,2007,38(10):33-35.
[3]邵岩,马秀梅,赵兰浩.考虑水体作用的渡槽动力响应计算方法比较[J].南水北调与水利科技,2007,5(2):78-80.
[4]张建华,杨志超,兰文改.矩形沙河渡槽的动力响应分析[J].华北水利水电学院学报,2009(1):23-27.
[5]冯领香.渡槽结构多点地震输入的抗震分析[D].石家庄:河北农业大学,2004.
[6]李彦军,王贺,吴迪.大型渡槽结构抗震分析研究[J].人民黄河,2010,32(1):100-103.
[7]安妮特.博格勒.轻.远-德国约格.施菜希和鲁道夫.贝格曼德的轻型结构[M].北京:中国建筑工业出版社,2004.
[8]何庆祥,沈祖炎.结构地震行波效应分析综述[J].地震工程与工程振动,2009,29(1):50-57.
[9]彭刚,张国栋.土木工程结构振动控制[M].武汉:武汉理工大学出版社,2002.
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