摘要
为了抵抗风荷载的作用,人行悬索桥通常会安装抗风缆。但安装抗风缆后,抗风缆和主缆受力会相互作用,相互影响,悬索桥在设计中面临抗风缆和主缆的共同找形问题。利用ANSYS软件通过不断迭代的方式首先进行抗风缆的找形,然后进行主缆的找形,最后进行模型合并,从而建立整个有限元模型。迭代的方法可以很好的确定带有抗风缆的悬索桥的成桥线形,对于此类悬索桥的建模提供了较为准确的指导建议。
In order to resist the effect of wind loads,the anti-wind cables are usually installed onto the pedestrian suspension bridge.However,after the wind-resistant cables are installed,the forces of the wind-resistant cable and the main cable may interact with each other,as a result of which the design of a suspension bridge is faced with the mutual form-finding problem of both the wind-resistant cable and the main cable.In the present paper,the ANSYS software is used to find the shape of the wind-resistant cable by means of iteration first,then to find the shape of the main cable,and finally,the two models are merged,upon the basis of which the finite element model for the whole bridge is established.The method of iteration is very useful for determining the bridge-forming linearity of a suspension bridge with wind-resistant cables.The paper may serve as an accurate guide to modeling such suspension bridges.
作者
巩明
刘玉辉
张彦玲
李运生
GONG Ming;LIU Yuhui;ZHANG Yanling;LI Yunsheng(The School of Civil Engineering of the Shijiazhuang Tiedao University,Shijiazhuang 050043,China;Henan Provincial Communications Planning ＆Design Institution Co.Ltd.,Zhengzhou 450000,China)
出处
《国防交通工程与技术》
2018年第5期26-29,11,共5页
Traffic Engineering and Technology for National Defence
基金
国家自然科学基金资助项目(51778377)
河北省研究生创新资助项目(Z672201301)
关键词
ANSYS
悬索桥
抗风缆
主缆
找形
ANSYS；suspension bridge；wind-resistant cable；the main cable；form-finding
