【摘要】 采用三维有限元方法对江坪河水电站控制段闸墩结构的选型进行了比较探讨,并对不同预应力值的闸墩力学性能做了对比分析,提出了合理的预应力取值,依此对不同荷载工况下预应力闸墩结构位移和应力进行了计算并做了安全性评价。结果表明,选取的预应力闸墩结构具有整体稳定性,在各种荷载组合效应下墩体的变形和应力分布满足工程及规范《水工混凝土结构设计规范》要求。更多还原

【Abstract】 The control structure of pier selection for Jiangpinghe hydropower is calculated and analyzed by using 3D FEM.And the mechanics performance of pier is comparative analysis with the different prestressed values and the reason-able prestressed value is obtained.Then the displacement and stress distribution of prestressed pier structure are calculat-ed and the structure safety is evaluated.Results show that the choice of prestressed pier has the overall stability and the deformation and stress distribution of the pier in various combination of load meet the requirements of engineering and specification.更多还原