坞式闸室预应力筋布置形式优化

Optimization of prestressed reinforcement alignment in depressed chamber structure

预应力坞式闸室预应力筋可以采用多种布置形式。为使闸室达到较优的受力状态,结合一具体工程实例,依据预应力钢筋的布置原则和等效荷载原理,提出了两种坞式闸室预应力筋的合理布置形式。通过ANSYS有限元软件模拟两种布筋方案可知,不同的布筋形式下闸室结构的受力是有差异的,而合理的布置形式能有效减小闸室拉应力和变形。

There are many linear arrangements of prestressed reinforcement in depressed chamber structure.In order to reach a better state of stress, this paper puts forward two reasonable arrangements according to the layout and equivalent principles combining with an engineering project. By ANSYS simulation of two schemes, we know that the stress states are different under different arrangement forms, and reasonable forms can reduce tensile stress and deformation effectively of the lock chamber structure.