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以某5跨高墩连续刚构桥为工程背景,计算分析了不同合龙次序对桥梁结构位移和应力的影响。并基于无应力状态法施工控制理论,从本质上阐明了合龙次序对成桥状态的影响机制,提出了该桥的最佳合龙方案。
Taking a 5-span high-rise continuous rigid frame bridge as the engineering background, the influence of different closing sequences on the displacement and stress of the bridge structure was calculated and analyzed. Based on the construction control theory of stressless state method, this paper clarifies the influence mechanism of the closing sequence to the bridge state essentially and puts forward the best closing scheme of the bridge.