槽墩高度对渡槽结构水平地震响应的影响
|
摘要
为了研究槽墩高度对矩形渡槽结构系统的动力特性及水平地震动力响应的影响,本文采用Housner流-固耦合模型,提出了一种用于土-桩-渡槽-水体系统的有限元分析方法。以渡槽结构原理性拟动力试验结果为依据,对拟动力试验进行了有限元仿真计算,验证了本文所给出的计算模型的合理性。在此基础上,重点对不同槽墩高度的矩形渡槽结构系统进行了计算研究,结果表明:渡槽结构的基频随槽墩高变化显著,而其高阶模态频率则变化不大。在El Centro波及TAR波输入时,随着槽墩高的增大,渡槽结构关键部位的最大动应力等响应存在递减趋势;尤其在El Centro波输入时,递减趋势更为显著。人工波输入时,结构动力响应状况存在一定波动,但从总体而言志,矮墩渡槽的动力响应大于高墩渡槽的动力响应。
The purpose of this paper is to study the influence of the height of pier on the dynamic characteristics and horizontal seismic responses of rectangular aqueduct structure.A finite element method is developed for solving the horizontal seismic responses of aqueduct with fluid-structure coupling and pile-soil-structure interaction in this paper.Analysis is carried out by using this finite element model and the results are in good agreement with the pseudo-dynamic principle testing data.The proposed finite element method is verified.On this base,the rectangular aqueduct structures with different heights of piers are studied by using this method.Results show that the fundamental frequency of aqueduct structure model is significantly changed with the increase of the height of pier,however,the difference of high-order frequencies is not evident.In addition,under the excitation of El Centro earthquake ground motion and TAR earthquake ground motion,these is a decreasing trend of the maximum seismic responses of the key parts of aqueduct structure with the increase of the height of pier,especially for the El Centro earthquake ground.motion.Under the excitation of artificial earthquake ground motion,these is a certain fluctuation in the seismic responses of aqueduct structures with high piers,however,in general,the dynamic responses of low piers are larger.
The purpose of this paper is to study the influence of the height of pier on the dynamic characteristics and horizontal seismic responses of rectangular aqueduct structure.A finite element method is developed for solving the horizontal seismic responses of aqueduct with fluid-structure coupling and pile-soil-structure interaction in this paper.Analysis is carried out by using this finite element model and the results are in good agreement with the pseudo-dynamic principle testing data.The proposed finite element method is verified.On this base,the rectangular aqueduct structures with different heights of piers are studied by using this method.Results show that the fundamental frequency of aqueduct structure model is significantly changed with the increase of the height of pier,however,the difference of high-order frequencies is not evident.In addition,under the excitation of El Centro earthquake ground motion and TAR earthquake ground motion,these is a decreasing trend of the maximum seismic responses of the key parts of aqueduct structure with the increase of the height of pier,especially for the El Centro earthquake ground.motion.Under the excitation of artificial earthquake ground motion,these is a certain fluctuation in the seismic responses of aqueduct structures with high piers,however,in general,the dynamic responses of low piers are larger.
引文
[1]李正农,张盼盼,朱旭鹏,等.考虑桩-土动力相互作用的渡槽结构水平地震响应分析[J].土木工程学报,2010,43(12):135-141.LI Zhengnong,ZHANG Panpan,ZHU Xupeng,et al.Horizontal seismic response analysis of aqueduct with pier-soil dynamic interaction[J].ChinaCivil Engineering Journal,2010,43(12):135-141.(in Chinese)
[2]杨世浩,李正农,宋一乐,等.大型渡槽支座隔震研究[J].振动工程学报,2009,22(2):188-192.YANG Shihao,LI Zhengnong,SONG Yile,et al.Seismic isolation of large aqueduct by using seismic isolation bearing[J].Journal of Vibration Engi-neering,2009,22(2):188-192.(in Chinese)
[3]刘云贺,胡宝柱,闫建文,等.Houser模型在渡槽抗震计算中的适用性[J].水利学报,2002(9):94-99.LIU Yunhe,HU Baozhu,YAN Jianwen,et al.Applicability of Houser model to aseismic characteristics calculation of aqueduct[J].Journal of Hy-draulic Engineering,2002(9):94-99.(in Chinese)
[4]李遇春,楼梦麟.强震下流体对渡槽槽身的作用[J].水利学报,2003(3):46-52.LI Yuchun,LOU Menglin.Action of fluid on aqueduct body during strong earthquake[J].Journal of Hydraulic Engineering,2002(3):46-52.(in Chinese)
[5]徐建国,陈淮,王博.渡槽结构考虑流固耦合的横向地震响应研究[J].工程力学,2004,21(6):197-202.XU Jianguo,CHEN Huai,WANG Bo.Transverse seismic response of aqueducts with fluid-structure coupling[J].Engineering Mechanics,2004,21(6):197-202.(in Chinese)
[6]陈少林,唐敢,刘启方,等.三维土-结构动力相互作用的一种时域直接分析方法[J].地震工程与工程振动,2010,30(2):24-31.CHEN Shaolin,TANG Gan,LIU Qifang,et al.A direct time-domain method for analysis of three-dimensional soil-structure dynamic interaction[J].Journal of Earthquake Engineering and Engineering Vibration,2010,30(2):24-31.(in Chinese)
[7]朱志辉,尚守平,吴方伯.土-结构动力相互作用人工边界分析及试验验证[J].地震工程与工程振动,2007,27(3):137-143.ZHU Zhihui,SHANG Shouping,WU Fangbo.Artificial boundary analysis of dynamic soil-structure interaction with test verification[J].Journal ofEarthquake Engineering and Engineering Vibration,2007,27(3):137-143.(in Chinese)
[8]陈波,吕西林,李培振,等.均匀土-桩基-结构相互作用体系的计算分析[J].地震工程与工程振动,2002,22(3):91-99.CHEN Bo,LU Xilin,LI Peizhen,et al.Computational analysis of dynamic homogeneous soil-pile structure interaction[J].Journal of EarthquakeEngineering and Engineering Vibration,2002,22(3):91-99.(in Chinese)
[9]卢华喜,梁平英,尚守平.成层地基-桩基-动力相互作用体系的计算分析[J].岩土工程学报,2007,29(5):705-711.LU Huaxi,LIANG Pingying,SHANG Shouping.Computational analysis of dynamic layered soil-pile-structure interaction[J].Chinese Journal ofGeotechnical Engineering,2007,29(5):705-711.(in Chinese)
[10]钱德玲,宋传中,王东坡,等.地基-结构动力相互作用体系中数值仿真的研究[J].岩石力学与工程学报,2008,27(1):1953-1959.QIAN Deling,SONG Chuanzhong,WANG Dongpo,et al.Study on numerical simulation for dynamic interaction of soil and structure[J].ChineseJournal of Rock Mechanics and Engineering,2008,27(1):1953-1959.(in Chinese)
[11]Penzien J,Scheffey C F,Parmekee R A.Seismic analysis of bridges on long piles[J].Journal of the Engineering Mechanics Division,1964,90(EM3):223-254.
[12]孙利民,张晨南,潘龙,等.桥梁桩土相互作用的集中质量模型及参数确定[J].同济大学学报,2002,30(4):409-415.SUN Liming,ZHANG Chennan,PAN Long,et al.Lumped-mass model and its parameters for dynamic analysis of bridge pier-pile-soil system[J].Journal of Tongji University,2002,30(4):409-415.(in Chinese)
[13]王海东,尚守平,周志锦,等.瑞利波作用下桩土相互作用横向动力响应计算研究[J].湖南大学学报:自然科学版,2009,36(11):1-5.WANG Haidong,SHANG Shouping,ZHOU Zhijin,et al.Computational research on the horizontal dynamic response of single pile considering pile-soil interaction during passage of Rayleigh waves[J].Journal of Hunan University:Natural Sciences,2009,36(11):1-5.(in Chinese)
[14]蒋通,(日)田治见宏.地基-结构动力相互作用分析方法[M].上海:同济大学出版社,2009:164-197.JIANG Tong,Taji Mihiro.The analysis method for soil-structure dynamic interaction problems[M].Shanghai:Tongji University Press,2009:164-197.(in Chinese)
[15]李加武,卢斌,刘健新.影响桥梁减震性能参数的试验研究[J].郑州大学学报:工学版,2002,23(2):34-36.LI Jiawu,LU Bin,LIU Jianxin.Shake table experimental study of the seism-reducing behavior of continues-beam bridges[J].Journal of ZhengzhouUniversity:Engineering Science,2002,23(2):34-36.(in Chinese)
[16]周亚栋.桥墩高度对铅销橡胶支座减震效果影响研究[D].西安:长安大学,2004.ZHOU Yadong.Influence research of pier height on aseismic effect of lead-rubber-bearing[J].Xi'an:Chang'an University,2004.(in Chinese)
[17]Houser G W.Dynamic pressure on accelerated containers[J].Bull Seism.Soc.Am,1957,47(3):15-35.
[18]Deeks A J,Randolph M F.Axisymmetric time-domain transmiting boundaries[J].Journal of Engineering Mechanics,1994,120(1):25-42.
[19]杜修力,赵密,王进廷.近场波动模拟的一种应力人工边界条件[J].力学学报,2006,38(1):49-56.DU Xiuli,ZHAO Mi,WANG Jinting.A stress artificial boundary in FEA for near-field wave problem[J].Chinese Journal of Theoretical and Ap-plied Mechanics,2006,38(1):49-56.(in Chinese)
[20]刘晶波,吕彦东.结构-地基动力相互作用问题分析的一种直接方法[J].土木工程学报,1998,31(3):55-64.LIU Jingbo,LV Yandong.A direct method for analysis of dynamic soil-structure interation[J].China Civil Engineering Journal,1998,31(3):55-64.(in Chinese)
[21]杜修力,赵密.基于黏弹性边界的拱坝地震反应分析方法[J].水利学报,2006,37(9):1063-1069.DU Xiuli,ZHAO Mi.Analysis method for seismic response of arch dams in time domain based on visous spring artificial boundary condition[J].Journal of Hydraulic Engineering,2006,37(9):1063-1069.(in Chinese)
[22]首培烋,刘曾武,朱镜清.地震波在工程中的应用[M].北京:地震出版社,1982:83-93.SHOU Peixiu,LIU Zengwu,ZHU Jingqing.The application of seismic wave in engineering[M].Beijing:Seismological Press,1982:83-93.(inChinese)
[23]廖振鹏.工程波动理论导论[M].北京:科学出版社,2002:57-59.LIAO Zhenpeng.Introduction to wave motion theories for engineering[M].Beijing:Science Press,2002:57-59.(in Chinese)
[24]Hardin B O,Dmevich V P.Shear modulus and damping in soils:design equations and curves[J].Journal of the Soil Mechanics and Founda-tions Division,1972,(SM7):667-692.
[25]张伯艳,邓迎,李德玉.渡槽抗震计算中几个关键问题的简化处理方法[J].南水北调和水利科技,2005,3(2):46-48.ZHANG Boyan,DENG Ying,LI Deyu.Simplification treatment of some key problems in aqueduck aseismatic calculation[J].South-to-North WaterTransfers and Water Science and Technology,2005,3(2):46-48.(in Chinese)
[2]杨世浩,李正农,宋一乐,等.大型渡槽支座隔震研究[J].振动工程学报,2009,22(2):188-192.YANG Shihao,LI Zhengnong,SONG Yile,et al.Seismic isolation of large aqueduct by using seismic isolation bearing[J].Journal of Vibration Engi-neering,2009,22(2):188-192.(in Chinese)
[3]刘云贺,胡宝柱,闫建文,等.Houser模型在渡槽抗震计算中的适用性[J].水利学报,2002(9):94-99.LIU Yunhe,HU Baozhu,YAN Jianwen,et al.Applicability of Houser model to aseismic characteristics calculation of aqueduct[J].Journal of Hy-draulic Engineering,2002(9):94-99.(in Chinese)
[4]李遇春,楼梦麟.强震下流体对渡槽槽身的作用[J].水利学报,2003(3):46-52.LI Yuchun,LOU Menglin.Action of fluid on aqueduct body during strong earthquake[J].Journal of Hydraulic Engineering,2002(3):46-52.(in Chinese)
[5]徐建国,陈淮,王博.渡槽结构考虑流固耦合的横向地震响应研究[J].工程力学,2004,21(6):197-202.XU Jianguo,CHEN Huai,WANG Bo.Transverse seismic response of aqueducts with fluid-structure coupling[J].Engineering Mechanics,2004,21(6):197-202.(in Chinese)
[6]陈少林,唐敢,刘启方,等.三维土-结构动力相互作用的一种时域直接分析方法[J].地震工程与工程振动,2010,30(2):24-31.CHEN Shaolin,TANG Gan,LIU Qifang,et al.A direct time-domain method for analysis of three-dimensional soil-structure dynamic interaction[J].Journal of Earthquake Engineering and Engineering Vibration,2010,30(2):24-31.(in Chinese)
[7]朱志辉,尚守平,吴方伯.土-结构动力相互作用人工边界分析及试验验证[J].地震工程与工程振动,2007,27(3):137-143.ZHU Zhihui,SHANG Shouping,WU Fangbo.Artificial boundary analysis of dynamic soil-structure interaction with test verification[J].Journal ofEarthquake Engineering and Engineering Vibration,2007,27(3):137-143.(in Chinese)
[8]陈波,吕西林,李培振,等.均匀土-桩基-结构相互作用体系的计算分析[J].地震工程与工程振动,2002,22(3):91-99.CHEN Bo,LU Xilin,LI Peizhen,et al.Computational analysis of dynamic homogeneous soil-pile structure interaction[J].Journal of EarthquakeEngineering and Engineering Vibration,2002,22(3):91-99.(in Chinese)
[9]卢华喜,梁平英,尚守平.成层地基-桩基-动力相互作用体系的计算分析[J].岩土工程学报,2007,29(5):705-711.LU Huaxi,LIANG Pingying,SHANG Shouping.Computational analysis of dynamic layered soil-pile-structure interaction[J].Chinese Journal ofGeotechnical Engineering,2007,29(5):705-711.(in Chinese)
[10]钱德玲,宋传中,王东坡,等.地基-结构动力相互作用体系中数值仿真的研究[J].岩石力学与工程学报,2008,27(1):1953-1959.QIAN Deling,SONG Chuanzhong,WANG Dongpo,et al.Study on numerical simulation for dynamic interaction of soil and structure[J].ChineseJournal of Rock Mechanics and Engineering,2008,27(1):1953-1959.(in Chinese)
[11]Penzien J,Scheffey C F,Parmekee R A.Seismic analysis of bridges on long piles[J].Journal of the Engineering Mechanics Division,1964,90(EM3):223-254.
[12]孙利民,张晨南,潘龙,等.桥梁桩土相互作用的集中质量模型及参数确定[J].同济大学学报,2002,30(4):409-415.SUN Liming,ZHANG Chennan,PAN Long,et al.Lumped-mass model and its parameters for dynamic analysis of bridge pier-pile-soil system[J].Journal of Tongji University,2002,30(4):409-415.(in Chinese)
[13]王海东,尚守平,周志锦,等.瑞利波作用下桩土相互作用横向动力响应计算研究[J].湖南大学学报:自然科学版,2009,36(11):1-5.WANG Haidong,SHANG Shouping,ZHOU Zhijin,et al.Computational research on the horizontal dynamic response of single pile considering pile-soil interaction during passage of Rayleigh waves[J].Journal of Hunan University:Natural Sciences,2009,36(11):1-5.(in Chinese)
[14]蒋通,(日)田治见宏.地基-结构动力相互作用分析方法[M].上海:同济大学出版社,2009:164-197.JIANG Tong,Taji Mihiro.The analysis method for soil-structure dynamic interaction problems[M].Shanghai:Tongji University Press,2009:164-197.(in Chinese)
[15]李加武,卢斌,刘健新.影响桥梁减震性能参数的试验研究[J].郑州大学学报:工学版,2002,23(2):34-36.LI Jiawu,LU Bin,LIU Jianxin.Shake table experimental study of the seism-reducing behavior of continues-beam bridges[J].Journal of ZhengzhouUniversity:Engineering Science,2002,23(2):34-36.(in Chinese)
[16]周亚栋.桥墩高度对铅销橡胶支座减震效果影响研究[D].西安:长安大学,2004.ZHOU Yadong.Influence research of pier height on aseismic effect of lead-rubber-bearing[J].Xi'an:Chang'an University,2004.(in Chinese)
[17]Houser G W.Dynamic pressure on accelerated containers[J].Bull Seism.Soc.Am,1957,47(3):15-35.
[18]Deeks A J,Randolph M F.Axisymmetric time-domain transmiting boundaries[J].Journal of Engineering Mechanics,1994,120(1):25-42.
[19]杜修力,赵密,王进廷.近场波动模拟的一种应力人工边界条件[J].力学学报,2006,38(1):49-56.DU Xiuli,ZHAO Mi,WANG Jinting.A stress artificial boundary in FEA for near-field wave problem[J].Chinese Journal of Theoretical and Ap-plied Mechanics,2006,38(1):49-56.(in Chinese)
[20]刘晶波,吕彦东.结构-地基动力相互作用问题分析的一种直接方法[J].土木工程学报,1998,31(3):55-64.LIU Jingbo,LV Yandong.A direct method for analysis of dynamic soil-structure interation[J].China Civil Engineering Journal,1998,31(3):55-64.(in Chinese)
[21]杜修力,赵密.基于黏弹性边界的拱坝地震反应分析方法[J].水利学报,2006,37(9):1063-1069.DU Xiuli,ZHAO Mi.Analysis method for seismic response of arch dams in time domain based on visous spring artificial boundary condition[J].Journal of Hydraulic Engineering,2006,37(9):1063-1069.(in Chinese)
[22]首培烋,刘曾武,朱镜清.地震波在工程中的应用[M].北京:地震出版社,1982:83-93.SHOU Peixiu,LIU Zengwu,ZHU Jingqing.The application of seismic wave in engineering[M].Beijing:Seismological Press,1982:83-93.(inChinese)
[23]廖振鹏.工程波动理论导论[M].北京:科学出版社,2002:57-59.LIAO Zhenpeng.Introduction to wave motion theories for engineering[M].Beijing:Science Press,2002:57-59.(in Chinese)
[24]Hardin B O,Dmevich V P.Shear modulus and damping in soils:design equations and curves[J].Journal of the Soil Mechanics and Founda-tions Division,1972,(SM7):667-692.
[25]张伯艳,邓迎,李德玉.渡槽抗震计算中几个关键问题的简化处理方法[J].南水北调和水利科技,2005,3(2):46-48.ZHANG Boyan,DENG Ying,LI Deyu.Simplification treatment of some key problems in aqueduck aseismatic calculation[J].South-to-North WaterTransfers and Water Science and Technology,2005,3(2):46-48.(in Chinese)
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心