论文部分内容阅读
利用空间有限元软件以三亚红沙大桥为实例,按照施工阶段的工况,逼真地建立了该斜拉桥的空间计算模型。采用倒拆出来的施工张拉索力为基础,通过正装迭代计算不断修正初张索力,最终得到了较理想的施工一次张拉索力,为该桥的设计和施工监控提供了重要参数。同时提出了一种解决倒拆正装结果不闭合问题的方法,也为该类桥梁施工一次张拉索力的求解提供了一种可用的思路。
Using space finite element software, taking Sanya Hongsha Bridge as an example, the space calculation model of the cable-stayed bridge is established vividly according to the working conditions in the construction stage. Based on the overturned construction tension cable force, the initial cable tension was corrected through the formal iteration calculation. Finally, the ideal tensile cable force was obtained, which provided important parameters for the design and construction monitoring of the bridge. At the same time, a new method to solve the problem of closing the collapsible suits is proposed, which also provides a useful idea for the solution of the tension in the construction of such bridges.