宽箱梁矮塔斜拉桥受力性能分析  

Analysis on Stress Performance of Wide-box Beam Low-pylon Cable-stayed Bridge

作　　者：杨勇[1] 余晓琳[2] 

机构地区：[1]广州市市政工程设计研究院,广东广州510060 [2]华南理工大学交通学院,广东广州510640

出　　处：《城市道桥与防洪》2011年第12期22-24,29,共4页Urban Roads Bridges & Flood Control

摘　　要：以四川茜草长江大桥为工程背景,通过对宽箱梁矮塔斜拉桥施工过程的仿真分析,得出桥梁结构的全过程荷载响应,验证了桥梁结构的安全性。对宽箱梁的梁格分析表明,矮塔斜拉桥宽箱梁在不同阶段的横向分布系数是变化的,在设计、施工控制中要考虑横向分布系数对结构安全性的影响,并给出了部分结果。Taking Changjiang River Bridge in Xicao of Sichuan as the engineering background,the article simulates and analyzes the construction process of the wide-box beam low-pylon cable-stayed bridge to give the whole process of loading response for the bridge structure and validate the security of bridge structure.The analysis of the beam grid of wide-box beam shows that the transverse distribution coefficient of wide-box beam of the low-pylon cable-stayed bridge is variable under the different stages.The influence of transverse distribution coefficient on the structure security should be considered during the design and construction control.The article gives some results.

关 键 词：矮塔斜拉桥 仿真分析 宽箱梁 横向分布 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]