振动台试验三维叠层剪切箱研制
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摘要
在进行土-结相互作用振动台试验中,最常用的盛土容器为叠层剪切箱。但目前已研制出的剪切箱还只能进行一个水平方向的剪切运动,不能满足对三维土-结相互作用研究的要求。在总结国内外研制叠层剪切箱经验的基础上,研制出了刚度可调的三维叠层剪切箱。通过三层三跨地下结构砂土夹层试验,证明了本剪切箱不但能够进行三维土-结相互作用振动台试验,而且能够很好的解决模型箱的边界效应问题。同时,针对不同试验中所选择的模型土种类的不同,可以调整剪切箱的刚度,以满足试验对降低模型箱边界效应的要求。
Laminar shear container is the most commonly used soil container in shaking table test for dynamic soil-structure interaction.A three-dimensional laminar shear soil container was firstly designed and worked out for shaking table test.A shaking table test for soil-underground structure dynamic interaction was conducted.The test results showed that the soil container eliminates the boundary effect quite well in two mutually perpendicular horizontal directions;meanwhile,the stiffness of the soil container can be adjusted according to the variation of the model soil to meet the requirement of decrease in boundary effect.
Laminar shear container is the most commonly used soil container in shaking table test for dynamic soil-structure interaction.A three-dimensional laminar shear soil container was firstly designed and worked out for shaking table test.A shaking table test for soil-underground structure dynamic interaction was conducted.The test results showed that the soil container eliminates the boundary effect quite well in two mutually perpendicular horizontal directions;meanwhile,the stiffness of the soil container can be adjusted according to the variation of the model soil to meet the requirement of decrease in boundary effect.
引文
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[2]杨林德,季倩倩,郑永来,等.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.
[3]陈国兴,庄海洋,程绍革,等.土-地铁隧道动力相互作用的大型振动台试验:试验方案设计[J].地震工程与工程振动,2006,26(6):178-183.
[4]景立平,姚运生,郑志华.高速铁路路基粉土地震模拟振动台试验研究[J].地震工程与工程振动,2006,27(6):160-165.
[5]Meymand P.Shaking table scale model test of nonlinear building-pile-superstructure interaction in soft clay[D].Berkeley:University of California Berkeley,1998.
[6]Whitman R V,Lambe P C,Kutter B L.Initial results from astacked ring apparatus for simulation of a soil profile[A].In:Proceedings of the International Conference on Recen Advances in Geotechnical Earthquake Engineering and Soi Dynamics[C]St.Louis,USA:[s.n.],1981:1105-1110.
[7]Matsuda T,Goto Y.Studies on experimental technique o shaking table test for geotechnical problem[A]//Proceedings of the9th World Conference Earthquake Engineering[C].Tokyo,Japan,1998:837-842.
[8]伍小平,孙利民,胡世德,等.振动台试验用层状剪切变形土箱的研制[J].同济大学学报,2002,30(7):781-785.
[9]黄春霞,张鸿儒,隋志龙.大型叠层剪切变形模型箱的研制[J].岩石力学与工程学报,2006,25(10):2128-2134.
[10]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.
[11]陈国兴,王志华,左熹,等.振动台试验叠层剪切型土箱的研制[J].岩土工程学报,2010,32(1):89-98.
[12]庄茁.基于ABAQUS的有限元分析和应用[M].北京:清华大学出版社.2009.
[13]石亦平,周玉蓉.ABAQUS有限元分析实例详解[M].北京:机械工业出版社,2006.
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