[1]任翔,黄平明,梅葵花,等.温度对悬索桥索股垂度的影响分析[J].郑州大学学报(工学版),2009,30(04):22-25.[doi:10.3969/j.issn.1671-6833.2009.04.006]
　Ren Xiang,HUANG Pingming,plum sunflower,et al.Analysis of the influence of temperature on the stranding of suspension bridges[J].Journal of Zhengzhou University (Engineering Science),2009,30(04):22-25.[doi:10.3969/j.issn.1671-6833.2009.04.006]
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温度对悬索桥索股垂度的影响分析()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
30卷
期数:
2009年04期
页码:
22-25
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Analysis of the influence of temperature on the stranding of suspension bridges
作者:
任翔; 黄平明; 梅葵花; 等.
长安大学公路学院,陕西西安,710064;西安科技大学建筑与土木工程学院,陕西西安,710054, 长安大学公路学院,陕西西安,710064, 北京公科固桥技术有限公司,北京,100088
Author(s):
Ren Xiang; HUANG Pingming; plum sunflower; etc
关键词:
桥梁工程;  悬索桥;  温度效应;  索股线形;  垂度
Keywords:
DOI:
10.3969/j.issn.1671-6833.2009.04.006
文献标志码:
A
摘要:
针对悬索桥主缆索股线形对温度变化敏感的特点,研究了主缆索股断面温度变化以及索塔塔身温度变化对索股线形的影响.考虑主缆索股沿跨度为同一温度,并根据无应力索长恒定不变的原理,给出了空缆状态下索股温度变化与垂度关系的迭代方法,以及温度导致的索塔偏位与索股垂度之间的相互影响,及相应的修正方法.比较了迭代修正法和有限元法分别计算得到的不同温差下索股垂度的改变量,两种方法计算结果吻合较好,最大偏差为9 mm,约为3%.分析表明,运用迭代方法修正由于温差引起主缆索股垂度变化量是可行的.
Abstract:
According to the characteristics that the main cable strand shape of the suspension bridge is sensitive to temperature changes, the influence of the temperature change of the main cable strand section and the temperature change of the sota tower body on the cable strand shape was studied. Considering that the strand span of the main cable strands is the same temperature, and according to the principle of constant length of stress-free cables, an iterative method of the relationship between cable strand temperature change and sag in the empty cable state, as well as the interaction between temperature-induced cable tower offset and cable strand sagg, and the corresponding correction method are given. The changes of cable strands under different temperature differences calculated by iterative correction method and finite element method were compared, and the calculation results of the two methods were in good agreement, with a maximum deviation of 9 mm, which was about 3%.The analysis shows that it is feasible to use the iterative method to correct the change of main cable strands due to temperature difference.

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更新日期/Last Update: 1900-01-01