渡槽内流速对其结构静力响应的影响分析
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摘要
采用三维有限元模型,通过对比计算,研究了渡槽内流速对其横、竖向结构静力响应的影响。研究表明:流速对渡槽横向位移以及横向弯矩的静力响应虽然有比较明显的影响,且随着槽内流速的增大,影响也在加大,但是,在1.0～2.5 m/s的流速范围内,影响很小,不会产生危害;高流速对渡槽竖向位移以及竖向弯矩影响要比低流速大,但是,在1.0～2.5 m/s的范围内,对渡槽的竖向位移及竖向弯矩的影响也很有限。
The influences of fluid velocity on lateral and vertical static force responses of aqueduct were studied by contrast calculation using three-dimensional finite element model.The results show that although the influence of fluid velocity on lateral displacement and moment of the aqueduct is evident and increases with fluid velocity,yet within a velocity range of 1.0-2.5 m/s the influence is limited.The influence of high fluid velocity on vertical displacement and moment is larger than that under low velocity.However,in a range of 1.0-2.5 m/s,the influence can be negligible.
The influences of fluid velocity on lateral and vertical static force responses of aqueduct were studied by contrast calculation using three-dimensional finite element model.The results show that although the influence of fluid velocity on lateral displacement and moment of the aqueduct is evident and increases with fluid velocity,yet within a velocity range of 1.0-2.5 m/s the influence is limited.The influence of high fluid velocity on vertical displacement and moment is larger than that under low velocity.However,in a range of 1.0-2.5 m/s,the influence can be negligible.
引文
[1]竺慧珠,陈德亮,管枫年.渡槽[M].北京:中国水利水电出版社,2005.(ZHU Hui-zhu,CHEN De-liang,GUANG Feng-nian.Aqueducts[M].Beijing:China Wa-ter Power Press,2005.(in Chinese))
[2]徐建国.大型渡槽结构抗震分析方法及其应用[D].大连:大连理工大学,2005.(XU Jian-guo.Method andApplication of Aseismic Analysis for Large-Scale Aque-duct[D].Dalian:Dalian University of Technology,2005.(in Chinese))
[3]张述琴,张晖.刁河板粱式渡槽仿真模型试验研究[J].长江科学院院报,2002,19(9):75-77.(ZHANGShu-qin,ZHANG Hui.Emulation Model Test of Plank-beam Style Aqueduct of Diaohe River[J].Journal ofYangtze River Scientific Research Institute,2002,19(9):75-77.(in Chinese))
[4]吴轶.大型梁式渡槽地震反应分析及设计方法研究[D].广州:华南理工大学,2004.(WU Yi.Study onSeismic Response and Design Method of Large Beam Aq-ueduct[D].Guangzhou:South China University ofTechnology,2004.(in Chinese))
[5]王博.大型渡槽结构地震反应分析理论与应用[D].上海:同济大学,2000.(WANG Bo.Theory andApplication of Earthquake Response Analysis for Large-scale Aqueduct[D].Shanghai:Tongji University,2000.(in Chinese))
[6]张俊发,刘云贺,王颖,等.渡槽-水体系统的地震反应分析[J].西安理工大学学报,1999,15(4):46-51.(ZHANG Jun-fa,LIU Yun-he,WANG Ying,et al.ASeismic Response Analysis of Water-Aqueduct-Pier Sys-tem[J].Journal of Xi’an University of Technology,1999,(4):46-51.(in Chinese))
[7]LIU W K.Finite Element Procedure for Fluid-StructureInteractions and Application to Liquid Storage Tanks[J].Nuclear Engineering and Design,1981,65:221-238.
[8]HIRT G W,AMSDEN A A,COOK J L.An ArbitraryLagrangian-Eulerian Computing Method for All FlowSpeeds[J].J.Comp Phys,1974,14(3):227-253.
[2]徐建国.大型渡槽结构抗震分析方法及其应用[D].大连:大连理工大学,2005.(XU Jian-guo.Method andApplication of Aseismic Analysis for Large-Scale Aque-duct[D].Dalian:Dalian University of Technology,2005.(in Chinese))
[3]张述琴,张晖.刁河板粱式渡槽仿真模型试验研究[J].长江科学院院报,2002,19(9):75-77.(ZHANGShu-qin,ZHANG Hui.Emulation Model Test of Plank-beam Style Aqueduct of Diaohe River[J].Journal ofYangtze River Scientific Research Institute,2002,19(9):75-77.(in Chinese))
[4]吴轶.大型梁式渡槽地震反应分析及设计方法研究[D].广州:华南理工大学,2004.(WU Yi.Study onSeismic Response and Design Method of Large Beam Aq-ueduct[D].Guangzhou:South China University ofTechnology,2004.(in Chinese))
[5]王博.大型渡槽结构地震反应分析理论与应用[D].上海:同济大学,2000.(WANG Bo.Theory andApplication of Earthquake Response Analysis for Large-scale Aqueduct[D].Shanghai:Tongji University,2000.(in Chinese))
[6]张俊发,刘云贺,王颖,等.渡槽-水体系统的地震反应分析[J].西安理工大学学报,1999,15(4):46-51.(ZHANG Jun-fa,LIU Yun-he,WANG Ying,et al.ASeismic Response Analysis of Water-Aqueduct-Pier Sys-tem[J].Journal of Xi’an University of Technology,1999,(4):46-51.(in Chinese))
[7]LIU W K.Finite Element Procedure for Fluid-StructureInteractions and Application to Liquid Storage Tanks[J].Nuclear Engineering and Design,1981,65:221-238.
[8]HIRT G W,AMSDEN A A,COOK J L.An ArbitraryLagrangian-Eulerian Computing Method for All FlowSpeeds[J].J.Comp Phys,1974,14(3):227-253.
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