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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

27卷

期数:

2010年03期

页码:

35-40

栏目:

出版日期:

2010-09-20

文章信息/Info

Title:

Research on Suspended Curve-shape of Cables Considering Flexural Rigidity

作者:

王涛¹,沈锐利¹,郭健²

1. 西南交通大学 桥梁工程系,四川 成都 610031; 2. 浙江省舟山连岛工程建设指挥部,浙江 舟山 316000

Author(s):

WANG Tao¹, SHEN Rui-li¹, GUO Jian²

1. Department of Bridge Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China; 2. Zhejiang Provincial Construction Headquarters of Zhoushan Islands Link Project, Zhoushan 316000, Zhejiang, China

关键词:

缆索;  抗弯刚度;  线形;  悬链线;  数值方法

Keywords:

cable;  flexural rigidity;  curve-shape;  catenarian;  numerical method

分类号:

U448.25

DOI:

-

文献标志码:

A

摘要:

根据实际悬挂缆索的受力情况推导了缆索悬挂曲线满足的微分方程; 采用数值方法分别计算了在不同情况下考虑抗弯刚度时缆索的悬挂线形,并与采用悬链线理论计算的结果进行了对比。结果表明:在确定的物理特性下,缆索的悬挂线形与缆索的抗弯刚度和无应力长度有关; 无应力长度越长时,缆索的悬挂线形越接近悬链线理论的计算结果。所得的计算结果可以为实际缆索结构精确计算模型的建立提供参考。

Abstract:

Authors derived a set of differential equations for real suspended cables according to the force conditions. Then, authors calculated the suspended curve-shape of cables by using numerical method under different conditions and compared them with the calculation results of catenarian theory. Results show that suspended curve-shape of cable is related to flexural rigidity and unstressed length of cable in determined physical characteristic, when unstressed length of cable is longer, the suspended curve-shape of cable and the catenarian curve are more similar. The calculation result can provide reference for building accurate calculation model of real cable structures.

参考文献/References:

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备注/Memo

备注/Memo:

收稿日期:2010-06-10
基金项目:“十一五”国家科技支撑计划项目(2008BAG07B05)
作者简介:王 涛(1983-),男,四川南充人,工学博士研究生,E-mail:7015294@qq.com。

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更新日期/Last Update: 2010-09-20