大跨高墩连续刚构桥动力特性研究
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摘要
以重庆芙蓉江特大桥为研究对象,应用大型通用有限元程序ANSYS对该桥进行动力特性分析,分别采用空间结构板壳单元shell63与梁单元beam4两种建模方式,分析了其动力特性,对两种模型的数值分析结果进行了比较.结果表明:两种模型的计算结果的差异均在工程允许范围内,两种建模方法都是可行的.在实际工程中可以考虑采用梁单元进行计算,以满足工程实时性要求,节省建模和计算时间,缩短设计周期.
Considering the Furong River bridge in Chongqing as the research object,this article applied large general finite element program ANSYS to process the analysis of dynamic characteristics.It takes two modeling styles——plate and shell unit shell 63 and beam unit beam 4 to analyze its dynamic characteristics.Compared between the value analysis results of two models,it shows the difference between two calculating results in allowable range of the project and both modeling methods proved to be feasible.In the real project,we can consider using the beam unit in order to meet the requirement of the real-time on project,save the time of modeling,and calculation and shorten the period of design.
Considering the Furong River bridge in Chongqing as the research object,this article applied large general finite element program ANSYS to process the analysis of dynamic characteristics.It takes two modeling styles——plate and shell unit shell 63 and beam unit beam 4 to analyze its dynamic characteristics.Compared between the value analysis results of two models,it shows the difference between two calculating results in allowable range of the project and both modeling methods proved to be feasible.In the real project,we can consider using the beam unit in order to meet the requirement of the real-time on project,save the time of modeling,and calculation and shorten the period of design.
引文
[1]马保林.高墩大跨连续刚构[M].北京:人民交通出版社,2001.MA Bao-lin.Long-span and high pier continuous rigid frame bridge[M].Beijing:People Communication Publishing House,2001.
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[3]范立础,胡世德,叶爱君.大跨度桥梁抗震设计[M].北京:人民交通出版社,2001.FAN Li-chu,HU Shi-de,YE Ai-jun.Seismic design of long-span bridges[M].Beijing:People Communication Pub-lishing House,2001.
[4]尹海军.芙蓉江特大桥静力分析与动力学性能研究[D].兰州:兰州交通大学,2007.YIN Hai-jun.Static and dynamical analysis of Fu rong-jiang Extra-Long Bridge[D].Lanzhou:Lanzhou Jiaotong Uni-versity,2007.
[5]徐翔,郝际平.关于截面可变形薄壁梁的方法论研究[J].西安建筑科技大学学报:自然科学版,2007,40(2):176-183.XU Xiang,HAOJi-ping.Methodology study on sectionally deformable thin-walled beamtheory[J].J.Xi′an Univ.of Arch.&Tech.(Natural Science Edition),2007,40(2):176-183.
[6]吴鸿庆,任侠.结构有限元分析[M].北京:中国铁道出版社,2000.WU Hong-qing,REN Xia.Structural finite element analysis[M].Beijing:China rail way publishing house,2000.
[7]孙增寿,孙征,陈淮.郑州黄河大桥主桥自振特性分析[J].世界地震工程,2003,19(3):129-133.SUN Zeng-shou,SUN Zheng,CHEN Huai.Analysis of natural characteristics on main bridge of zhen zhou yellow river bridge[J].World earthquake engineering,2003,19(3):129-133.
[8]宗周红,赖苍林,林友勤.大跨度预应力混凝上连续刚构桥的动力特性分析[J].地震工程与工程振动,2004,24(3):98-104.ZONG Zhou-hong,LAI Cang-lin,LIN You-qin.Analysis of dynamic characteristics of a large-span prestressed con-crete continuous rigid frame bridge[J].Earthquake Engineering and Engineering Vibration,2004,24(3):98-104.
[9]范立础.桥梁抗震[M].上海:同济大学出版社,1997.FAN Li-chu.Seismic analysis for bridges[M].Shanghai:Tongji university publishing house,1997.
[10]JTJ021-89,公路工程抗震设计规范[S].北京:人民交通出版社,1989.JTJ021-89,The Standard of Seismic Design for Highway Engineering[S].Beijing:People Communication Publish-ing House,1989.
[11]赵志刚.地震动输入方向对非规则高架桥动力性能的影响[D].西安:西安建筑科技大学,2007.ZHAO Zhi-gang.The influence of the input direction of seismic motion to the irregular viaduct′dynamic character-istic[D].Xi′an:Xi′an University of Architecture and Technology,2007.
[2]张立明.Algor,Ansys在桥梁工程中的应用方法与实例[M].北京:人民交通出版社,2003.ZHANG Li-ming.Application method and example of Algor and Ansys on bridge engineering[M].Beijing:People Communication Publishing House,2003.
[3]范立础,胡世德,叶爱君.大跨度桥梁抗震设计[M].北京:人民交通出版社,2001.FAN Li-chu,HU Shi-de,YE Ai-jun.Seismic design of long-span bridges[M].Beijing:People Communication Pub-lishing House,2001.
[4]尹海军.芙蓉江特大桥静力分析与动力学性能研究[D].兰州:兰州交通大学,2007.YIN Hai-jun.Static and dynamical analysis of Fu rong-jiang Extra-Long Bridge[D].Lanzhou:Lanzhou Jiaotong Uni-versity,2007.
[5]徐翔,郝际平.关于截面可变形薄壁梁的方法论研究[J].西安建筑科技大学学报:自然科学版,2007,40(2):176-183.XU Xiang,HAOJi-ping.Methodology study on sectionally deformable thin-walled beamtheory[J].J.Xi′an Univ.of Arch.&Tech.(Natural Science Edition),2007,40(2):176-183.
[6]吴鸿庆,任侠.结构有限元分析[M].北京:中国铁道出版社,2000.WU Hong-qing,REN Xia.Structural finite element analysis[M].Beijing:China rail way publishing house,2000.
[7]孙增寿,孙征,陈淮.郑州黄河大桥主桥自振特性分析[J].世界地震工程,2003,19(3):129-133.SUN Zeng-shou,SUN Zheng,CHEN Huai.Analysis of natural characteristics on main bridge of zhen zhou yellow river bridge[J].World earthquake engineering,2003,19(3):129-133.
[8]宗周红,赖苍林,林友勤.大跨度预应力混凝上连续刚构桥的动力特性分析[J].地震工程与工程振动,2004,24(3):98-104.ZONG Zhou-hong,LAI Cang-lin,LIN You-qin.Analysis of dynamic characteristics of a large-span prestressed con-crete continuous rigid frame bridge[J].Earthquake Engineering and Engineering Vibration,2004,24(3):98-104.
[9]范立础.桥梁抗震[M].上海:同济大学出版社,1997.FAN Li-chu.Seismic analysis for bridges[M].Shanghai:Tongji university publishing house,1997.
[10]JTJ021-89,公路工程抗震设计规范[S].北京:人民交通出版社,1989.JTJ021-89,The Standard of Seismic Design for Highway Engineering[S].Beijing:People Communication Publish-ing House,1989.
[11]赵志刚.地震动输入方向对非规则高架桥动力性能的影响[D].西安:西安建筑科技大学,2007.ZHAO Zhi-gang.The influence of the input direction of seismic motion to the irregular viaduct′dynamic character-istic[D].Xi′an:Xi′an University of Architecture and Technology,2007.
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