空间索形自锚式悬索桥吊索张拉过程分析方法

王晓明, 贺拴海, 段瑞芳

王晓明, 贺拴海, 段瑞芳. 空间索形自锚式悬索桥吊索张拉过程分析方法[J]. 工程力学, 2016, 33(10): 164-172. DOI: 10.6052/j.issn.1000-4750.2015.03.0168
引用本文: 王晓明, 贺拴海, 段瑞芳. 空间索形自锚式悬索桥吊索张拉过程分析方法[J]. 工程力学, 2016, 33(10): 164-172. DOI: 10.6052/j.issn.1000-4750.2015.03.0168
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WANG Xiao-ming, HE Shuan-hai, DUAN Rui-fang. HANGER TENSIONING PROCESS ANALYSIS OF SELF-ANCHORED SUSPENSION BRIDGE WITH SPATIAL CABLES[J]. Engineering Mechanics, 2016, 33(10): 164-172. DOI: 10.6052/j.issn.1000-4750.2015.03.0168
Citation: WANG Xiao-ming, HE Shuan-hai, DUAN Rui-fang. HANGER TENSIONING PROCESS ANALYSIS OF SELF-ANCHORED SUSPENSION BRIDGE WITH SPATIAL CABLES[J]. Engineering Mechanics, 2016, 33(10): 164-172. DOI: 10.6052/j.issn.1000-4750.2015.03.0168
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空间索形自锚式悬索桥吊索张拉过程分析方法

  • 1.

    长安大学桥梁工程研究所, 西安 710064;

  • 2.

    旧桥检测与加固技术交通行业重点实验室, 西安 710064;

  • 3.

    陕西交通职业技术学院, 西安 710018

基金项目: 国家自然科学基金青年科学基金项目（51308055）；教育部高校博士新教师基金项目（20130205120001）；中国博士后科学基金项目（2013M532000）；中央高校基本科研业务费项目（CHD2013G1211010）
详细信息
    作者简介:

    贺拴海(1962-),男,陕西洛川人,教授,博士,从事桥梁结构理论与桥梁加固方法等研究(E-mail:heshai@chd.edu.cn);段瑞芳(1980-),女,河北衡水人,讲师,硕士,从事桥梁结构分析与理论研究工作(E-mail:duan_ruifang@qq.com)

    通讯作者:

    王晓明(1983-),男,山西应县人,副教授,工学博士,主要从事桥梁安全评估与工程控制研究(E-mail:wxm512061228@gmail.com).

  • 中图分类号: U448.25

HANGER TENSIONING PROCESS ANALYSIS OF SELF-ANCHORED SUSPENSION BRIDGE WITH SPATIAL CABLES

  • 1.

    Institute of Bridge Engineering Chang'an University, Xi'an, 710064, China;

  • 2.

    Key Laboratory of Bridge Detection Reinforcement Technology Ministry of Transport(Xi'an)710064, China;

  • 3.

    Shaanxi College of Communication Technology, Xi'an 710018, China

More Information
    Corresponding author:

    WANG Xiao-ming: 10.6052/j.issn.1000-4750.2015.03.0168

摘要

    摘要
  • 摘要: 针对空间索形自锚式悬索桥的吊索张拉施工过程，以主缆、吊索的下料长度为联系，从施工过程临时体系的力学平衡角度入手，构建吊索上端竖向力矩阵与吊索横向力矩阵，建立各个施工阶段相互独立的力学平衡方程；分别采用多段三维悬链线分析空间索的双向垂度特征，建立了吊索张拉施工过程的精确解析解；所提方法可独立求解任意施工阶段的物理状态，不依赖于前一工况。基于上述优点，采用逐步推进的张拉思路，建立了张拉方案的制定流程，明显提高了优化效率。算例分析表明，该文算法精度高，方案优化效率高。
    Abstract: The hanger tensioning process of self-anchored suspension bridge with spatial cables is analyzed. Based on the mechanical equilibrium of the temporary system of any one construction process accounting for the cutting lengths of the main cable and hanger, the top vertical force matrix and lateral force matrix are established respectively. Independent equilibrium equations are established for each construction stage. The multistage spatial catenary is employed to simulate the bidirectional sag characteristics of spatial cables, and then the exact analytical solution is proposed for hanger tensioning process. The proposed method can separately solve the physical effect of any one construction stage without the effect of any previous stage. Based on this advantage, the optimization method of tensioning schemes is proposed using the gradual tensioning method. The example shows that the proposed method can solve tensioning process accurately and improve the optimization efficiency of tension scheme obviously.
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    • 参考文献(18)
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出版历程
  • 收稿日期:  2015-03-07
  • 修回日期:  2015-04-29
  • 刊出日期:  2016-10-24

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