| 下承式刚性系杆拱桥的结构温度效应研究 |
| |
| 引用本文： | 余明林,杨文鸣,吴冬雁.下承式刚性系杆拱桥的结构温度效应研究[J].建筑技术,2009,40(4):368-370. |
| |
| 作者姓名： | 余明林 杨文鸣 吴冬雁 |
| |
| 作者单位： | 1. 桐庐城市建设有限投资公司,311500,浙江桐庐
2. 浙江大学建工学院土木工程系,310058,杭州 |
| |
| 摘 要： | 以桐庐富春江二桥60m跨度的拱桥为对象，根据桥位的温度实测数据分析下承式刚性系梁拱桥由于上、下部结构温度差产生的温度效应。通过与使用荷载、体系温度荷载及系梁温度梯度荷载的工况对比结果，表明上、下部结构温差产生的拱肋轴力为使用荷载的4倍左右，且拱肋的弯矩远大于使用荷载下的弯矩值，对拱肋的结构安全性验算有较大的影响，设计时须注意。
|
| 关 键 词： | 拱桥 结构安全 温度效应 |
RESEARCH ON TEMPERATURE EFFECT ON STRUCTURE OF RIGID TIED ARCH THROUGH BRIDGE |
| |
| YU Minglin,YANG Wenming,WU Dongyan.RESEARCH ON TEMPERATURE EFFECT ON STRUCTURE OF RIGID TIED ARCH THROUGH BRIDGE[J].Architecture Technology,2009,40(4):368-370. |
| |
| Authors: | YU Minglin YANG Wenming WU Dongyan |
| |
| Affiliation: | YU Minglin, YANG Wenming, WU Dongyan (1.Tonglu Urban Construction and Investment Co.,Ltd.,311500,Tonglu,Zhejiang,China;2.Department of Civil Engineering,Zhejiang University, 310058, Hangzhou, China ) |
| |
| Abstract: | Based on the 60-meter-span arch bridge of Fuchun River II Bridge of Tonglu County, temperature effect caused by temperature difference between superstructure and substructure of the bridge on rigid tied arch through bridge is analyzed according to practically measured temperature values. According to comparison results among project conditions of working load, system temperature load and collar beam temperature gradient load, arch rib axial force generated by temperature difference between superstructure and substructure is about 4 times as much as working load, and bending moment of arch rib is far greater than that under working load. The bending moment of arch rib shall be considered in design, because it may obviously affect the verification of structural safety of arch rib. |
| |
| Keywords: | arch bridge structure safety temperature effect |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
