摘要
该文结合工程实例,以主跨100m预应力混凝土连续梁桥为背景,分析了温度梯度作用下温度变化对中跨合龙施工的影响,以及利用挂篮进行中跨合龙的原理。通过分析和计算,得出了对连续梁桥合龙段施工有一定参考价值的结论。
Combined with the engineering practice, taking the main span 100-m prestressed concrete continuous girder bridge as the background, the article analyzes the influence of temperature variation on the midspan closuring construction under the action of temperature grades, and the principle to implement the midspan closure by form traveler. Through the analysis and calculation, the article gives the referring value of conclusion for the construction of closuring section of the continuous girder bridge.
出处
《城市道桥与防洪》
2009年第9期109-111,共3页
Urban Roads Bridges & Flood Control
关键词
施工控制
中跨合龙
温度
挂篮
空间有限元
construction control, midspan closure, temperature, form traveler, span finite element
