广珠城际多跨刚构-连续组合梁桥合拢顺序分析

Analysis of Closure Order for Multi-span Bridges with Rigid Frame-continuous Girders in Guangzhou-Zhuhai Intercity Rapid Rail Transit

通过有限元数值模拟及施工组织设计要求,以广珠城际跨广珠西线特大桥为工程背景,计算分析了不同合拢次序对桥梁结构应力、位移及施工组织管理的影响,探讨了该类型桥梁合拢顺序的一般规律,为该桥合拢施工决策提供了理论依据,对类似桥梁合拢顺序的选择提供了参考.

Based on the construction organization design and the finite element numerical simulatton, the effect of different closure orders on the constructure stress,displacement and construction management of the bridge is calculated and analyzed by taking Western Line Bridge on Guangzhou-Zhuhai Intercity Rapid Rail Transit as an example. The paper analyzes the general pattern of bridges of this type in joining order, and provides the theoretical basis for closure construction decisions. The idea has certain referential value for the closure order decisions of the same type bridge.