• ISSN 0258-2724
  • CN 51-1277/U
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Volume 20 Issue 1
Feb.  2007
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Article Contents
CHEN Changsong, SU Long, YAN Donghuang. Accurate Nonlinear Analysis of Tower and Cable in Construction of Main Cable for Suspension Bridge[J]. Journal of Southwest Jiaotong University, 2007, 20(1): 44-48.
Citation: CHEN Changsong, SU Long, YAN Donghuang. Accurate Nonlinear Analysis of Tower and Cable in Construction of Main Cable for Suspension Bridge[J]. Journal of Southwest Jiaotong University, 2007, 20(1): 44-48.

Accurate Nonlinear Analysis of Tower and Cable in Construction of Main Cable for Suspension Bridge

  • Received Date: 21 Apr 2006
  • Publish Date: 25 Feb 2007
  • To analyze the deformation og main cable of a suspension bridge accurately,changes in the deformation of main cable shape and force action on tower in the construction were analyzed based on the principle of multi-span catenary of main cable.Action of tower on cable saddle was simulated as a nonlinear spring with a beam-column effect considered in calculation of tower stiffness.Two formulas were derived both for nonlinear thrusting rigidity and moment of tower bottom.Based on the free state of main cable,the construction of cable strands for a suspension bridge with a main span of 1 280 m was researched,and unequilibrium force acting on tower by cable,horizontal displacement of tower top,and moment of tower bottom were calculated and analyzed.The research results indicate that the effect of beam-column is little during the construction.

     

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  • 黄平明,梅葵花,徐岳.大跨度悬索桥主缆系统施工控制计算[J].西安公路交通大学学报,2000,20(4):19-22.HUANG Pingming,MEI Kuihua,XU Yue.The calculation method of main cable system construction control of long-span suspension bridge[J].Journal of Xi'an Highway University,2000,20(4):19-22.[2] 黄平明,梅葵花,孙胜江.大跨径悬索桥猫道承重索施工控制计算方法[J].中国公路学报,2000,13(3):45-48.HUANG Pingming,MEI Kuihua,SUN Shengjiang.Research on the calculation method of construction control on bearing cable system of long-span suspension bridge[J].China Journal of Highway and Transport,2000,13(3):45-48.[3] 唐茂林,强士中,沈锐利.悬索桥成桥主缆计算的悬链线方法[J].铁道学报,2003,25(1):87-91.TANG Maolin,QIANG Shizhong,SHEN Ruili.Segmental catenary method of calculating the cable curve of suspension bridge[J].Journal of the China Railway Society,2003,25(1):87-91.[4] 唐茂林,沈锐利,强士中.大跨度悬索桥丝股架设线形计算的精确方法[J].西南交通大学学报,2001,36(3):303-307.TANG Maolin,SHEN Ruili,QIANG Shizhong.An accurate calculation method for erecting curves of wire strands of long suspension bridge[J].Jounal of Southwest Jiaotong University,2001,36(3):303-307.[5] 杨孟刚,陈政清.两节点曲线索单元精细分析的非线性有限元法[J].工程力学,2003,20(1):42-47.YANG Menggang,CHEN Zhengqing.Two-node centenary element for the analysis of cable structure based on UL formula[J].China Civil Engineering Journal,2003,20(1):42-47.
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