| 三塔斜拉-自锚式悬索组合结构计算方法及参数分析 |
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| 引用本文： | 赵煜,汤金涛,周勇军,贺拴海.三塔斜拉-自锚式悬索组合结构计算方法及参数分析[J].西安科技大学学报,2011,31(5). |
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| 作者姓名： | 赵煜 汤金涛 周勇军 贺拴海 |
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| 作者单位： | 长安大学公路学院,陕西西安,710064 |
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| 基金项目： | 国家自然科学基金项目(50908017); 中央高校基本科研业务专项资金项目(CHD2010JC031) |
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| 摘 要： | 为了掌握三塔斜拉-自锚式悬索组合结构的力学特点和计算方法,以汉中市西二环特大桥为例,进行了成桥状态计算方法研究,并结合实际工程中常用的结构参数对其进行力学性能影响分析.结果表明,该类结构在计算中非线性效应较突出;对于自锚式悬索体系部分,处理好悬索体系主缆矢跨比和背索在主梁上的锚固间距可优化副塔受力;对于斜拉索体系部分,主梁的截面形式及斜拉索的锚固间距对结构影响不大.
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| 关 键 词： | 结构工程:自锚式悬索-斜拉组合结构 计算方法 非线性 矢跨比 |
Calculation method and parameter analysis of self-anchored suspension and cable-stayed composite structure with three towers |
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| ZHAO Yu,TANG Jin-tao,ZHOU Yong-jun,HE Shuan-hai.Calculation method and parameter analysis of self-anchored suspension and cable-stayed composite structure with three towers[J].JOurnal of XI’an University of Science and Technology,2011,31(5). |
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| Authors: | ZHAO Yu TANG Jin-tao ZHOU Yong-jun HE Shuan-hai |
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| Institution: | ZHAO Yu,TANG Jin-tao,ZHOU Yong-jun,HE Shuan-hai(College of Highway,Chang'an University,Xi'an 710064,China) |
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| Abstract: | A self-anchored suspension and cable-stayed structure with three towers is located in Hanzhong,Shaanxi,China,which has a span of 705 meters.In order to study the mechanical properties of this bridge,the influence parameters of nonlinearity,rise-span ratio of main cable,anchor space of minor-cable and main-cable are analyzed.Numerical results show that effect of nonlinearity should be considered in the design and calculation of medium-span self-anchored suspension and cable-stayed bridge;reasonable arrangeme... |
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| Keywords: | structure engineering self-anchored suspension and cable-stayed composite structure calculation method non-linearity rise-span ratio |
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