Thermal Effect of the Cable-Stayed Bridge Tower

作     者：Zhang Hai-long, Li Jun, Liu Chang-guo, Jiang Tian-hua, Wei jun School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China 

作者机构：Huazhong University of Science and Technology School of Civil Engineering and Mechanics Wuhan Hubei China (GRID:grid.33199.31) (ISNI:***) 

出 版 物：《Wuhan University Journal of Natural Sciences》 (武汉大学学报（自然科学英文版）)

年 卷 期：2003年第8卷第4A期

页      面：1121-1125页

核心收录：

学科分类：081406[工学-桥梁与隧道工程] 08[工学] 0814[工学-土木工程] 082301[工学-道路与铁道工程] 0823[工学-交通运输工程] 

基　　金：SupportedbytheNationalNaturalScienceFoundationofChina(50 2 780 39) 

主　　题：bridge tower thermal effect deformation full time measurement 

摘      要：This paper studies the thermal effect of the cable-stayed bridge tower based on full time accurate measurement and finite element analysis on Xiantao Hanjiang River Highway Bridge. The measured results and the displacement variation of top tower show that the tower rotates periodically when it is exposed in sunshine. But the tower column will not decline when there is no sunshine. In spite of in winter or in summer, the period when the tower column changed smallest is from 0∶00 am to 5∶00 am. The time period when the tower column has maximum deviation lags behind the time when the tower column has maximum temperature difference, and this phenomenon is obvious in winter. The conclusions also have directive value in predicting the tower deformations and their directions in construction control of cable-stayed bridge, and in verifying the finite element program.