单向坡斜拉桥体系转换主梁滑移控制  

Slipping Control of Main Girder in System Conversion of a Cable-Stayed Bridge with Unidirectional Slope

作　　者：王新忠[1] 周水兴[2] 李峰辉[2] 王为圣[2] 

机构地区：[1]湖南城市学院,湖南益阳413000 [2]重庆交通大学,重庆400074

出　　处：《市政技术》2006年第6期375-377,431,共4页Journal of Municipal Technology

摘　　要：对于漂浮体系的单向坡斜拉桥,在解除临时约束、体系转换过程中,会释放巨大的势能,使主梁出现单向滑移,影响到桥梁的施工和安全,必须加以控制。分析了单向坡斜拉桥解除临时约束过程中出现的滑移原因,并提出相应的控制措施。As the huge potential energy will release after the system conversion and relieving the temporary constraint, the slipping of main girder of unidirectional sloping cable-stayed bridge with floating system will appears, the construction and the whole bridge stability will be influenced. The causes of slippage was analyzed and the control measures were put forward in this paper.

关 键 词：桥 单向坡斜拉桥 滑移 体系转换 控制措施 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]