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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:

53-58

栏目:

出版日期:

2010-09-20

文章信息/Info

Title:

Research on Temperature Field of Main Cable Section of Xihoumen Bridge

作者:

俞明德¹,沈锐利¹,唐茂林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):

YU Ming-de¹, SHEN Rui-li¹, TANG Mao-lin¹, 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:

悬索桥;  主缆;  横断面;  温度场;  相位差

Keywords:

suspension bridge;  main cable;  section;  temperature field;  phase difference

分类号:

U448.25

DOI:

-

文献标志码:

A

摘要:

为研究悬索桥主缆横断面温度场,以西堠门大桥为背景,设计了截面足尺主缆模型并进行了长期的观测。结果表明:晴天主缆表面昼夜温差很大,白天时,受太阳辐射强度和太阳高度角变化的影响较大,各表面测点温度变化存在明显的相位差; 主缆横断面温度场为非均匀场,除圆心附近外,同一径向上,内层温度变化滞后于外层温度,越靠近圆心,温度幅值变化越小。

Abstract:

In order to investigate the temperature field of main cable section of suspension bridge, taking Xihoumen Bridge as background, a main cable model with actual dimension section was designed and was observed for a long time. Results indicate that in sunny day, temperature difference between day and night is big. In daytime, temperature is influenced by solar radiation strength and solar altitude angle, temperature variation of each measuring point on the surface exists obvious phase difference. Temperature field of main cable section is unsymmetrical. The lag of temperature variation of inner layer to outer layer increases but temperature amplitude variation decreases in radial direction to the center point.

参考文献/References:

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备注/Memo

备注/Memo:

收稿日期:2010-06-12
基金项目:“十一五”国家科技支撑计划项目(2008BAG07B05)
作者简介:俞明德(1984-),男,浙江舟山人,工学硕士,E-mail:yumingde02@163.com。

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更新日期/Last Update: 2010-09-20