中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

Journal of Chongqing Jiaotong University(Natural Science) ›› 2014, Vol. 33 ›› Issue (1): 21-24.DOI: 10.3969/j.issn.1674-0696.2014.01.05

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Control Method of Stress-Free Status in Transition Process of Structural System for Self-Anchored Suspension Bridge

Niu Denghui , Zhou Zhixiang , Wu Haijun , Wang Shaomi   

  1. School of Civil Engineering & Architecture , Chongqing Jiaotong University , Chongqing 400074 , China
  • Received:2013-11-15 Revised:2013-03-21 Online:2014-02-15 Published:2015-01-22

自锚式悬索桥体系转换过程的无应力状态控制法

牛登辉,周志祥,吴海军,王邵锐   

  1. 重庆交通大学土木建筑学院,重庆400074
  • 作者简介:牛登辉(1986-) ,男,山西大同人,硕士研究生,主要从事大跨径桥梁儿何非线性计算理论方面的研究。E-maiI:denghuiniu@sina.com 。
  • 基金资助:
    交通运输行业联合科技攻关项目(2010-353-341-230)

Abstract: In order to determine the tension and tensioning procedure in the transition process for self-anchored suspension bridge , a calculation method for the hanger tensile force in this process was proposed. It is the cooling method of adjusting the hanger stress-free length. Since there are some disadvantages in the regressive analysis method and traditional unstressed state control method , the cooling method of adjusting hanger stress-free length was presented based on traditional unstressed state control method. It is simple and has a high accuracy in the calculation of the hanger tensile force for self-anchored suspension bridge

Key words: self-anchored suspension bridge, hanger tensioning, transition of structural system, control method of stressfree status

摘要: 以满足自锚式悬索桥目标成桥状态为前提,针对如何确定自锚式悬索桥体系转换过程中吊索张拉力及张拉程 序的问题,提出了自锚式悬索桥体系转换过程的吊索张拉计算方法:调整吊索元应力长度的降温法。由于倒退分析 法和传统无应力状态控制法在计算自锚式悬索桥体系转换过程中存在缺陷,在传统无应力状态控制法的基础上,提 出了调整吊索无应力长度的降温法。该方法可用于计算自锚式悬索桥且计算方法简单,计算精度高。

关键词: 锚式悬索桥, 吊索张拉, 结构体系转换, 元应力状态控制法

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