非对称独塔斜拉桥边跨合龙受力性能影响研究

Research on impact of the mechanics performance of side span closure for asymmetric single pylon cable-stayed bridge

以广东潮州大桥为工程背景,介绍了主桥边跨合龙的施工方案,并按实际施工流程建立有限元模型模拟合龙各个阶段,在施工过程中对主梁的标高和应力、主塔偏位及斜拉索索力等关键影响内容进行监测,实测结果与理论吻合较好。

Based on the engineering background of the Chaozhou bridge in Guangdong,this paper introduces the construction scheme of the side span closure of main bridge. According to the actual construction process,the finite element model is established to simulate the closure of all stages. In the process of construction,the key influence content,such as elevation and stress of main girder,deviation of main tower and cable force,are monitored and the measured results are coincident with the theoretical values.