铁路刚构连续梁中跨合龙技术

On Railway Rigid Frame Continuous Beam Mid-span Technology

刚构连续梁施工质量要求高,必须通过科学的分析合龙段影响要因并制定针对性的控制措施加上合理的现场组织可确保成桥质量。结合宜万铁路6标段赵家岭大桥连续刚构合龙施工,阐述了温度、劲性骨架、预推顶、配重、预张拉等合龙要因及控制措施,值得参考。

The quality of continuous rigid frame beam construction is required to be high. It is necessary to scientifically analyze the influencing factors of closure section and formulate targeted control measures together with reasonable on-site organization to ensure the quality of finished bridge. Combined with the continuous rigid frame closure construction of Zhaojialing bridge in the sixth section of Yiwan railway, the closure factors and control measures, such as temperature, stiffness skeleton, preset roof, counterweight and pretension, are expounded.