预应力混凝土管桩抗弯性能研究

通过两根PHC管桩试验以及相关资料的数据,运用有限元软件ABAQUS对PHC管桩进行了数值模拟,研究了预应力混凝土管桩在受弯时的破坏过程,其计算结果与试验结果吻合较好。在此基础上,分析了非预应力筋的布置方式、数量以及直径对PRC管桩受弯承载力的影响。结果表明:布置非预应力筋时应沿圆周均匀布置;PRC管桩的抗弯承载力随着非预应力筋的数量和面积的增加而增加。

Study on Flexural Performance of Prestressed Concrete Pipe Pile

The finite element software ABAQUS is used to carry out the numerical simulation of PHC pipe pile through two PHC pipe pile test and related data and the failure process of the prestressed concrete pipe pile in bending is studied. The calculated results are in good agreement with the experimental results. On this basis, the influence of arrangement form, number and diameter of non-prestressed reinforcement on the flexural capacity of PRC pipe pile is analyzed. The results show that the non-prestressed reinforcement should be arranged evenly in circle direction and the flexural capacity of PRC pipe pile is increased with the number and area of non-prestressed reinforcements.