| 矮塔斜拉桥上部结构构件刚度敏感性研究 |
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| 引用本文： | 刘昊苏,雷俊卿.矮塔斜拉桥上部结构构件刚度敏感性研究[J].北方交通大学学报,2014(4):122-127. |
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| 作者姓名： | 刘昊苏 雷俊卿 |
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| 作者单位： | 北京交通大学土木建筑工程学院,北京100044 |
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| 基金项目： | 国家自然科学基金资助项目（51178042）;高等学校博士学科点专项科研基金资助项目（20100009110017）;交通运输部科技项目资助（2013315494011） |
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| 摘 要： | 以某在建矮塔斜拉桥斜拉索索力、主梁和桥塔内力、结构位移和结构基频等为评价指标,对矮塔斜拉桥索塔、主梁及斜拉索三者的刚度敏感性进行对比分析,并计算了3个主要构件的敏感性因子,提出三者刚度设计的次序安排,为同类矮塔斜拉桥的设计过程提供理论参考和设计参数.
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| 关 键 词： | 桥梁工程 矮塔斜拉桥 索塔刚度 主梁刚度 斜拉索刚度 动力特性 |
Stiffness sensitivity study of upper structure components in extradosed cable-stayed bridges |
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| LIU Haosu,LEI Junqing.Stiffness sensitivity study of upper structure components in extradosed cable-stayed bridges[J].Journal of Northern Jiaotong University,2014(4):122-127. |
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| Authors: | LIU Haosu LEI Junqing |
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| Institution: | (School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China) |
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| Abstract: | Based on an extra-dosed cable-stayed bridge under construction, the sensibility comparisons of stiffness between pylon, girder and cables are done under evaluation criteria of cable force, internal force of girder and pylon, structural displacement and fundamental frequency. Due to the calculation of sensitive factor, the order arrangement of stiffness design in the three components is raised, which the conclusions will be the important references for similar engineering and providing basis for parameters design. |
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| Keywords: | bridge engineering extra-dosed cable-stayed bridge pylon stiffness girder stiffness cablestiffness dynamic characteristics |
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