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采用三维有限元方法,对白莲崖水库工程坝身泄洪中孔预应力结构进行了整体空间应力分析,得到了其典型工况下的整体应力分布规律,根据计算结果,评价了大吨位混凝土结构的预应力效果。本文对预应力闸墩的锚束布置、张拉吨位设计以及空间线弹性有限元计算成果作了介绍。计算结果为白莲崖工程泄洪中孔预应力体系设计与优化提供了依据。
The three-dimensional finite element method is used to analyze the overall stress of the spillway prestressed structure of Bailiankai reservoir. The general stress distribution under typical working conditions is obtained. According to the calculation results, the influence of large-tonnage concrete structures Prestressing effect. In this paper, the anchorage bundle prestressing pier design, the design of tension and tonnage space elastic finite element calculation results are introduced. The results provide the basis for the design and optimization of prestressing system for flood discharge of Bailianya Project.