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以天津南仓编组站斜拉桥为背景,通过全桥的施工过程仿真分析,对该类型桥梁的施工控制进行研究。利用零位移法确定合理成桥状态;通过正装迭代法求出合理施工张拉索力,确定合理施工状态。根据该桥双塔联体、塔梁同步施工、挂篮结构复杂等特点,采取相应的监控措施。监控结果表明,该文采取的监控方法是合理有效的。
Taking the cable-stayed bridge of Tianjin Nangang Marshalling Station as a background, the construction control of this type of bridge is studied through the simulation analysis of the whole bridge construction process. Use zero displacement method to determine the reasonable state of the bridge; through formal wear iterative method to find reasonable construction tension cable force, to determine the reasonable construction status. According to the double towers of the bridge, the synchronous construction of the tower girder and the structure of the hanging cradle, the corresponding monitoring measures are taken. The monitoring results show that the monitoring method adopted in this paper is reasonable and effective.