| 三塔悬索桥静动力特性与中塔选型 |
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| 引用本文： | 梁鹏,吴向男,李万恒,徐岳.三塔悬索桥静动力特性与中塔选型[J].交通运输工程学报,2011(4):29-35. |
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| 作者姓名： | 梁鹏 吴向男 李万恒 徐岳 |
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| 作者单位： | 长安大学陕西省公路桥梁与隧道重点实验室;交通运输部公路科学研究院; |
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| 基金项目： | 国家自然科学基金项目(50808019); “十一五”国家科技支撑计划项目(2009BAG15B01); 中央高校基本科研业务费专项资金项目(CHD2009JC024) |
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| 摘 要： | 为探讨三塔悬索桥与两塔悬索桥静动力特性差异与中塔选型,以泰州长江大桥为原型,基于有限位移理论建立相应的两塔、三塔（混凝土中塔与钢中塔）悬索桥的空间有限元模型,分析了各种结构参数下的静力和地震效应。研究结果表明：与两塔悬索桥相比,由于中塔顶缺乏边缆的有效纵向约束,三塔悬索桥整体刚度较小,变形较大,自振频率低;汽车作用下主...
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| 关 键 词： | 桥梁工程 三塔悬索桥 静动力特性 中塔选型 有限元分析 主缆抗滑安全系数 主梁挠跨比 |
Static and dynamic properties of three-tower suspension bridge and structural type selection of mid-tower |
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| LIANG Peng,WU Xiang-nan,LI Wan-heng,XU Yue.Static and dynamic properties of three-tower suspension bridge and structural type selection of mid-tower[J].Journal of Traffic and Transportation Engineering,2011(4):29-35. |
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| Authors: | LIANG Peng WU Xiang-nan LI Wan-heng XU Yue |
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| Institution: | LIANG Peng1,WU Xiang-nan1,LI Wan-heng2,XU Yue1(1.Key Laboratory for Highway Bridge and Tunnel of Shaanxi Province,Chang'an University,Xi'an 710064,Shaanxi,China,2.Research Institute of Highway of Ministry of Transport,Beijing 100088,China) |
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| Abstract: | In order to discuss the static and dynamic properties differences between three-tower and two-tower suspension bridges,and select the rational structure type of mid-tower,based on the Taizhou Yangtze River Bridge,the 3D space finite element models of two-tower suspension bridge and three-tower suspension bridges with concrete mid-tower and steel mid-tower were set up by finite displacement theory and the static and seismal effects were analyzed under various structural parameters.Analysis result shows that ... |
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| Keywords: | bridge engineering three-tower suspension bridge static and dynamic properties structural type selection of mid-tower finite element analysis anti-slipping safety factor between main cable and saddle of mid-tower deflection-to-span ratio of main girder |
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