| 润扬长江大桥钢箱梁的温度分布监测与分析 |
| |
| 引用本文： | 孙君,李爱群,丁幼亮.润扬长江大桥钢箱梁的温度分布监测与分析[J].公路交通科技,2009,26(8). |
| |
| 作者姓名： | 孙君 李爱群 丁幼亮 |
| |
| 作者单位： | 东南大学土木工程学院,江苏,南京,210096 |
| |
| 基金项目： | 国家杰出青年科学基金，国家自然科学基金，江苏省自然科学基金 |
| |
| 摘 要： | 基于润扬长江大桥斜拉桥和悬索桥钢箱梁的温度观测结果,研究了扁平铜箱梁在日照作用下的温度分布特征,比较了悬索桥和斜拉桥2种桥型钢箱梁温度场的差异.实测结果表明:(1)钢箱梁顶板的昼夜温差明显大于底板的昼夜温差,且悬索桥钢箱梁的昼夜温差较斜拉桥更为明显;(2)钢箱梁底板的横向温度分布基本相同.可以不计横向温差影响;(3)钢箱梁顶板的横向温差表现为非线性时变特征,且斜拉桥和悬索桥钢箱梁的顶板温度分布模式存在明显的差异.润扬长江大桥扁平钢箱梁的温度分布模式为扁平钢箱梁在日照温差作用下的结构计算和桥面铺装层计算提供了重要参考.
|
| 关 键 词： | 桥梁工程 结构健康监测 温度分布 观测 悬索桥 斜拉桥 钢箱梁 |
Observation and Research on Temperature Distribution in Steel Box Girders of Runyang Yangtse River Bridge |
| |
| SUN Jun,LI Aiqun,DING Youliang.Observation and Research on Temperature Distribution in Steel Box Girders of Runyang Yangtse River Bridge[J].Journal of Highway and Transportation Research and Development,2009,26(8). |
| |
| Authors: | SUN Jun LI Aiqun DING Youliang |
| |
| Institution: | School of Civil Engineering;Southeast University;Nanjing Jiangsu 210096;China |
| |
| Abstract: | Based on the observation results of steel box girders of Runyang Cable-stayed Bridge and Runyang Suspension Bridge,temperature distributions in steel box girders subjected to sunshine were discussed.The differences in temperature distributions between the cable-stayed bridge and suspension bridge were presented in detail.The analysis results reveal that(1) the temperature difference in top plate in one day is larger than that of bottom plate and the temperature difference of suspension bridge is larger than... |
| |
| Keywords: | bridge engineering structural health monitoring temperature distribution observation suspension bridge cable-stayed bridge steel box girder |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
