混凝土圆形池钢筋分批张拉预应力损失计算

Calculation of prestressing loss of circular concrete pools by batched tension process

集中荷载法能有效地分析混凝土圆形池在环向对称、沿池壁高度非线性荷载作用下的变形和内力。对配置环向预应力钢筋的混凝土圆形池,通过预应力钢筋各张拉阶段池壁径向变形的计算,能较为准确地确定不同区段预应力钢筋的分批张拉应力损失。该方法简便适用,弥补了这类特种结构理论计算方法的不足。

The concentrated load method is effective for analyzing the deformation and internal force of the circular concrete pools under the circular symmetric load which is nonlinear along the height of the pool wall. For the circular concrete pool setting with the circular prestressing bar, the prestressing loss by batched tensioning can be obtained by calculating the radial deformation of the pool wall in different tesion process.