土工振动台试验连续体模型箱的适用性研究
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摘要
为更加合理地模拟地下结构多台阵振动台试验中场地的连续性,作者所在课题组研制了用于长线性地下结构振动台试验的连续体模型箱装置,该装置是由端部刚性箱、软连接箱及中间刚性箱组成的空间结构体系。运用有限元软件ABAQUS对其进行三维数值模拟,模态分析论证了可不与模型土发生共振的连续箱体构造的合理性,三维数值试验分析了该连续体模型箱在一致、非一致地震激励作用下的"边界效应"及工作中的稳定性。数值试验结果表明,所设计的连续体模型箱性能良好,为本次试验获得成功打下了坚实的基础。
In order to simulate a more reasonable site continuity of underground structures in multiple array shaking table test,a continuum model box used in long-term underground structural shaking table test is developed.This continuum model box is a spatial structure system composed of terminal rigid box,soft connecting box and intermediate rigid box.The box three-dimensional model is simulated by using the finite element software ABAQUS,its rationality is proved by using ABAQUS modal analysis that the proposed shape and structure of the continuum model box can avoid resonance with the model soil,A 3-D numerical simulation of the test is carried out to analyze the model box"border effect"and verify the continuum model box work stability under uniform and non-uniform seismic excitations.The numerical test results demonstrate that the performance of the continuum model box is very good.It lays a firm foundation for the success of the test.
In order to simulate a more reasonable site continuity of underground structures in multiple array shaking table test,a continuum model box used in long-term underground structural shaking table test is developed.This continuum model box is a spatial structure system composed of terminal rigid box,soft connecting box and intermediate rigid box.The box three-dimensional model is simulated by using the finite element software ABAQUS,its rationality is proved by using ABAQUS modal analysis that the proposed shape and structure of the continuum model box can avoid resonance with the model soil,A 3-D numerical simulation of the test is carried out to analyze the model box"border effect"and verify the continuum model box work stability under uniform and non-uniform seismic excitations.The numerical test results demonstrate that the performance of the continuum model box is very good.It lays a firm foundation for the success of the test.
引文
[1]杨林德,季倩倩,郑永来.地铁车站结构振动台试验中模型箱设计的研究[J],岩土工程学报,2004,26(1):75-78.YANG Linde,JI Qianqian,ZHENG Yonglai.Study on design of test box in shaking table test for subway station structure in soft soil[J],ChineseJournal of Geotechnical Engineering,2004,26(1):75-78.(in Chinese)
[2]孟海.埋地管线-土动力相互作用非一致激励振动台模型试验研究[D].上海:同济大学,2008.MENG Hai.Shaking table test on pipeline and soil dynamic interactionl under non-uniform seismic excitations[D].Shanghai:Tongji University,2008.(in Chinese)
[3]史晓军.非一致地震激励地下综合管廊大型振动台试验研究[D],上海:同济大学,2008.SHI Xiaojun.Shaking table test on utility tunnel under non-uniform seismic excitations[D].Shanghai:Tongji University,2008.(in Chinese)
[4]朱伯龙.结构抗震试验[M].北京:地震出版社,1989.ZHU Bolong.Structure seismic tests[M].Beijing:Earthquake Press,1989.(in Chinese).
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[7]吕西林,楼梦林.结构与地基相互作用振动台试验分析研究[R].上海:同济大学,2001.LU Xilin,LOU Menglin.Soil structure interaction analysis of shaking table testing[R].Research report Shanghai:Tongji University 2001.(in Chi-nese).
[8]陈国兴,王志华,左熹,等.振动台试验叠层剪切模型箱的研制[J],岩土工程学报,2010,32(1):89-97.CHEN Guoxing,WANG Zhihua,ZUO Xi.Development of laminar shear soil container for shaking table tests[J].Chinese Journal of GeotechnicalEngineering,2010,32(1):89-97.(in Chinese)
[9]史晓军,陈隽,李杰.层状双向剪切模型箱的设计及振动台试验验证[J].地下空间与工程学报,2009,5(2):254-261.SHI Xiaojun,CHEN Jun,LI Jie.Design and verification of dual-direction shear laminar box for shaking table test[J].Chinese Journal of Under-ground Space and Engineering,2009,5(2):254:261.(in Chinese)
[10]方林,蒋树屏,林志,等.穿越断层隧道振动台模型试验研究[J].岩土力学,2011,32(9):2709-2715.FANG Lin,JANG Shuping,LIN Zhi.Shaking table model test study of tunnel through fault[J].Roch and Soil Mechanics,2011,32(9):2709-2715.(in Chinese)
[11]杜修力,韩俊艳,李立云.长输埋地管道振动台试验设计中相似关系的选取[J].防灾减灾工程学报(待刊).DU Xiuli,HAN Junyan,LI Liyun.Study on similarity relations of shaking table test for long-distance buried pipeline[J].Journal of Disaster Pre-vention and Mitigation Engineering(in Chinese).
[12]GB50011-2010建筑抗震设计规范[S].GB50011-2010 Code for Seismic Design of Buildings[S].(in Chinese)
[2]孟海.埋地管线-土动力相互作用非一致激励振动台模型试验研究[D].上海:同济大学,2008.MENG Hai.Shaking table test on pipeline and soil dynamic interactionl under non-uniform seismic excitations[D].Shanghai:Tongji University,2008.(in Chinese)
[3]史晓军.非一致地震激励地下综合管廊大型振动台试验研究[D],上海:同济大学,2008.SHI Xiaojun.Shaking table test on utility tunnel under non-uniform seismic excitations[D].Shanghai:Tongji University,2008.(in Chinese)
[4]朱伯龙.结构抗震试验[M].北京:地震出版社,1989.ZHU Bolong.Structure seismic tests[M].Beijing:Earthquake Press,1989.(in Chinese).
[5]刘晶波,杜修力.结构动力学[M].北京:机械工业出版社,2005.LIU Jingbo,DU Xiuli.Structural dynamics[M].Beijing:Machinery Industry Press,2005.(in Chinese)
[6]庄海洋.土-地下结构非线性动力相互作用及其大型振动台试验研究[D].南京:南京工业大学,2006.ZHUANG Haiyang.Study on nonlinear dynamic soil-underground structure interaction and its large-size shaking table test[D].Nanjiang:NanjingUniversity of technology,2006.(in Chinese).
[7]吕西林,楼梦林.结构与地基相互作用振动台试验分析研究[R].上海:同济大学,2001.LU Xilin,LOU Menglin.Soil structure interaction analysis of shaking table testing[R].Research report Shanghai:Tongji University 2001.(in Chi-nese).
[8]陈国兴,王志华,左熹,等.振动台试验叠层剪切模型箱的研制[J],岩土工程学报,2010,32(1):89-97.CHEN Guoxing,WANG Zhihua,ZUO Xi.Development of laminar shear soil container for shaking table tests[J].Chinese Journal of GeotechnicalEngineering,2010,32(1):89-97.(in Chinese)
[9]史晓军,陈隽,李杰.层状双向剪切模型箱的设计及振动台试验验证[J].地下空间与工程学报,2009,5(2):254-261.SHI Xiaojun,CHEN Jun,LI Jie.Design and verification of dual-direction shear laminar box for shaking table test[J].Chinese Journal of Under-ground Space and Engineering,2009,5(2):254:261.(in Chinese)
[10]方林,蒋树屏,林志,等.穿越断层隧道振动台模型试验研究[J].岩土力学,2011,32(9):2709-2715.FANG Lin,JANG Shuping,LIN Zhi.Shaking table model test study of tunnel through fault[J].Roch and Soil Mechanics,2011,32(9):2709-2715.(in Chinese)
[11]杜修力,韩俊艳,李立云.长输埋地管道振动台试验设计中相似关系的选取[J].防灾减灾工程学报(待刊).DU Xiuli,HAN Junyan,LI Liyun.Study on similarity relations of shaking table test for long-distance buried pipeline[J].Journal of Disaster Pre-vention and Mitigation Engineering(in Chinese).
[12]GB50011-2010建筑抗震设计规范[S].GB50011-2010 Code for Seismic Design of Buildings[S].(in Chinese)
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