悬索桥施工中主缆横截面平均温度实用计算法  

Practical Method for Calculating the Mean Temperature of the Main Cable Section in the Construction Control of Suspension Bridges

作　　者：潘永仁[1] 范立础[1] 

机构地区：[1]同济大学桥梁工程系,上海200092

出　　处：《同济大学学报（自然科学版）》1998年第2期114-119,共6页Journal of Tongji University:Natural Science

基　　金：国家科委攀登B计划资助!85-40

摘　　要：在悬索桥的施工控制中，需要对空缆状态主缆横截面的边界点温度进行测量，从而求得主缆的平均温度笔者从热传导方程出发，揭示了主缆这种由钢丝和空隙组成的截面的温度分布，提出了主缆横截面平均温度的实用计算方法算例和实测结果对比表明，该法具有良好的精度．In the construction control of suspension bridges, it is required that the temperatures of border point ofmain cable section under the single cable condition be measured so as to obtain the mean temperature of the main ca-ble. From the thermal transfer eqrations, the temperature distribution of the main cable section, which is composed ofwires and voids, is revealed. A practical method which can be used to calculate the mean temperature of main cablesection is developed. A comparison between the numerical examples and the experimental results is carried out. Theresults show that the method is relatively acculate.

关 键 词：悬索桥 施工控制 主缆 平均温度 

分 类 号：U448.25[建筑科学—桥梁与隧道工程]