高墩大跨径连续刚构桥合拢施工及挠度控制  

Closure Construction and Deflection Control of High Pier and Long Span Continuous Rigid Frame Bridge

作　　者：刘锦克 LIU Jin-ke(Pingdingshan Kaida Engineering Supervision Office,Pingdingshan 467000,China)

机构地区：[1]平顶山市凯达工程监理处,平顶山467000

出　　处：《价值工程》2018年第12期108-109,共2页Value Engineering

摘　　要：自改革开放以后,我国交通建设事业发展速度越来越快,特别是高等级公路建设对路线指标、成本等要求也不断提高,很多具有经济性、合理性的桥梁结构被大量使用,尤其是连续刚构桥,因其具有跨度大、行车安全、无需大型支座等特点,已经成为现代桥梁发展的重点。连续刚构桥选用柔性桥墩,通过墩梁固结、主梁连续构成连续刚构桥,其是T形刚构结合连续梁的一种新型体系。为此,本文结合具体案例,对高墩大跨径连续刚构桥合拢段施工关键技术及悬臂施工挠度控制进行了分析与探究。Since the reform and opening up,China's traffic construction has been growing faster.In particular,the construction of highgrade highways has also increased the requirements for route indicators and costs.Many bridge structures that are economical and reasonable have been used in large numbers,especially the continuous rigid frame bridge,it has become a key point in the development of modern bridges due to its large span,safe driving and no need for large-scale bearings.The continuous rigid frame bridge uses flexible piers,it is formed by the pier beam consolidation and the main girder and is a new type of T-shaped rigid structure combined with continuous beams.For this reason,in this paper,based on specific cases,the key closure construction technologies and deflection control of cantilever construction for high-span pier and long-span continuous rigid-frame bridges are analyzed and explored.

关 键 词：高墩 连续刚构桥 合拢段 挠度控制 

分 类 号：U445[建筑科学—桥梁与隧道工程]