考虑流-固耦合的输水隧道动力模型试验中的一种相似技巧
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摘要
结构动力模型试验与动力模型破坏试验中,保持模型与原型相似的3种基本要求与处理技巧已在相关文献中提及。同时,也提及了对结构动力特性、弹性振动响应与破坏形态等试验目的不同,相似要求也有所差别,而这里将对地下软土中考虑流-固耦合的输水隧道的模型试验进行数值模拟研究。根据模型试验选料的经济实用性,提出了一种相似关系和技巧,并通过实例加以验证。数值模拟结果表明:在这种具体情况下,采用这种相似关系完全可以从模型试验的数据换算到原型,以便获得更多的有用信息,为今后地下输水工程模型试验的选材拓宽了思路,并提出了一些新的概念。
Three basic types of similarity relationship between the prototype and the model for dynamic structural model test and dynamic rupture model test are proposed in corresponding literatures.At the time the situation where various similarity relationships are applicable and the technique to ensure similarity for the different goals,to study dynamic behavior,elastic response and damage pattern,is discussed.The numerical simulation of model experiment of water-conveyance tunnel concerning fluid-structure interaction in soft soil is studied.Based on economic practicability of material selection for model test,the similarity relationship and the technique are proposed,which are validated through case study.The results of numerical simulation show that under the specific conditions,data of the model test can completely transfer to those of the prototype by using this type of similarity relationship,and getting more useful information.Some new ideas are introduced to keep the similarity of the hydraulic structures.
Three basic types of similarity relationship between the prototype and the model for dynamic structural model test and dynamic rupture model test are proposed in corresponding literatures.At the time the situation where various similarity relationships are applicable and the technique to ensure similarity for the different goals,to study dynamic behavior,elastic response and damage pattern,is discussed.The numerical simulation of model experiment of water-conveyance tunnel concerning fluid-structure interaction in soft soil is studied.Based on economic practicability of material selection for model test,the similarity relationship and the technique are proposed,which are validated through case study.The results of numerical simulation show that under the specific conditions,data of the model test can completely transfer to those of the prototype by using this type of similarity relationship,and getting more useful information.Some new ideas are introduced to keep the similarity of the hydraulic structures.
引文
[1]DONLON W P,HALL J F.Shaking table study of concrete gravity dam monoliths[J].Earthquake Engineering Structure Dynamics,1991,20:769-786.
[2]MIR R A,TAYLOR C A.An experimental investigation into earthquake induced failure of medium to low height concrete gravity dam[J].Earthquake Engineering Structure Dynamics,1995,24:378-393.
[3]LIN G,ZHOU J,FAN C Y.Dynamic model rupture test and safety evaluation of concrete gravity dams[J].Dam Engineering,1993,Ⅳ:173-186.
[4]林皋.研究拱坝振动的模型相似率[J].水利学报,1958,(1):80-104.LIN Gao.Study on model similitude of arch dam vibration[J].Journal of Hydraulic Engineering,1958,(1):80-104.
[5]林皋,朱彤,林蓓.结构动力模型试验的相似技巧[J].大连理工大学学报,2000,40(1):1-8.LIN Gao,ZHU Tong,LIN Bei.Similarity technique for dynamic structural model test[J].Journal of Dalian University of Technology,2000,40(1):1-8.
[6]陈跃庆,吕西林,李培振,等.分层土-基础-高层框架结构相互作用体系振动台模型试验研究[J].地震工程与工程振动,2001,21(3):104-112.CHEN Yue-qing,LüXi-lin,LI Pei-zhen,et al.Shaking table testing for layered soil-foundation-structure interaction system[J].Earthquake Engineering and Engineering Vibration,2001,21(3):104-112.
[7]楼梦鳞,王文剑,马恒春,等.土-桩-结构相互作用体系的振动台模型试验[J].同济大学学报,2001,29(7):763-768.LOU Meng-lin,WANG Wen-jian,MA Heng-chun,et al.Study on soil-pile-structure interaction system by shaking table model test[J].Journal of Tongji University,2001,29(7):763-768.
[8]陈跃庆,吕西林,李培振,等.不同土性的地基-结构动力相互作用振动台模型试验对比研究[J].土木工程学报,2006,39(5):57-64.CHEN Yue-qing,LüXi-lin,LI Pei-zhen,et al.Comparative study on the dynamic soil-structure interaction system with various soils by using shaking table model tests[J].China Civil Engineering Journal,2006,39(5):57-64.
[9]张世宝,张淙皎.南水北调中线总干渠安阳河涵洞式渡槽的仿真模型试验研究[J].华北水利水电学院学报,2000,21(2):1-7.ZHANG Shi-bao,ZHANG Cong-jiao.The experimental research the simulational material model of the culvert aqueduct of the Anyang River on the main channel of the middle route of south-to-north water transfer project[J].Journal of North China Institute of Water Con servancy and Hydroelectric Power,2000,21(2):1-7.
[10]张晖,张述琴,彭军.南水北调漳河涵洞式渡槽结构试验研究[J].长江科学院院报,2002,19(增刊):71-74.ZHANG Hui,ZHANG Shu-qin,PENG Jun.Experiment research on culvert aqueduct construction of Zhanghe River in Water Transfer Preject from South to North[J].Journal of Yangtze River Scientific Research Institute,2002,19(Supp.):71-74.
[2]MIR R A,TAYLOR C A.An experimental investigation into earthquake induced failure of medium to low height concrete gravity dam[J].Earthquake Engineering Structure Dynamics,1995,24:378-393.
[3]LIN G,ZHOU J,FAN C Y.Dynamic model rupture test and safety evaluation of concrete gravity dams[J].Dam Engineering,1993,Ⅳ:173-186.
[4]林皋.研究拱坝振动的模型相似率[J].水利学报,1958,(1):80-104.LIN Gao.Study on model similitude of arch dam vibration[J].Journal of Hydraulic Engineering,1958,(1):80-104.
[5]林皋,朱彤,林蓓.结构动力模型试验的相似技巧[J].大连理工大学学报,2000,40(1):1-8.LIN Gao,ZHU Tong,LIN Bei.Similarity technique for dynamic structural model test[J].Journal of Dalian University of Technology,2000,40(1):1-8.
[6]陈跃庆,吕西林,李培振,等.分层土-基础-高层框架结构相互作用体系振动台模型试验研究[J].地震工程与工程振动,2001,21(3):104-112.CHEN Yue-qing,LüXi-lin,LI Pei-zhen,et al.Shaking table testing for layered soil-foundation-structure interaction system[J].Earthquake Engineering and Engineering Vibration,2001,21(3):104-112.
[7]楼梦鳞,王文剑,马恒春,等.土-桩-结构相互作用体系的振动台模型试验[J].同济大学学报,2001,29(7):763-768.LOU Meng-lin,WANG Wen-jian,MA Heng-chun,et al.Study on soil-pile-structure interaction system by shaking table model test[J].Journal of Tongji University,2001,29(7):763-768.
[8]陈跃庆,吕西林,李培振,等.不同土性的地基-结构动力相互作用振动台模型试验对比研究[J].土木工程学报,2006,39(5):57-64.CHEN Yue-qing,LüXi-lin,LI Pei-zhen,et al.Comparative study on the dynamic soil-structure interaction system with various soils by using shaking table model tests[J].China Civil Engineering Journal,2006,39(5):57-64.
[9]张世宝,张淙皎.南水北调中线总干渠安阳河涵洞式渡槽的仿真模型试验研究[J].华北水利水电学院学报,2000,21(2):1-7.ZHANG Shi-bao,ZHANG Cong-jiao.The experimental research the simulational material model of the culvert aqueduct of the Anyang River on the main channel of the middle route of south-to-north water transfer project[J].Journal of North China Institute of Water Con servancy and Hydroelectric Power,2000,21(2):1-7.
[10]张晖,张述琴,彭军.南水北调漳河涵洞式渡槽结构试验研究[J].长江科学院院报,2002,19(增刊):71-74.ZHANG Hui,ZHANG Shu-qin,PENG Jun.Experiment research on culvert aqueduct construction of Zhanghe River in Water Transfer Preject from South to North[J].Journal of Yangtze River Scientific Research Institute,2002,19(Supp.):71-74.
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