用正装迭代法计算斜拉桥的施工索力

斜拉桥是一种高次超静定结构,每一节段的施工相当复杂。特别是对于预应力混凝土斜拉桥,更是如此。施工中索力的张拉量,不仅关系到施工中的安全、体系的内力和变形,更涉及到成桥阶段结构的安全运营。按照施工顺序,采用正装迭代法优化施工索力,以达到成桥的目标状态。

Using forward iteration method to calculate construction cable force of cable-stayed bridge

Cable-stayed bridge is a kind of high time for the hyperstatic structure, each construction segment is very complex, especially to the prestressed concrete cable-stayed bridge. In construction state, the strength of cable force, is not only related to the the security, the internal forces and deformations of structure, but also to the safety of operation stage. According to the construction order, using forward iterative method to optimize the construction cable force, so that to achieve the goal of bridge state.