PHC 桩合理管节长度的研究

Study of the Reasonable Lengh of Pipe Section of PHC Piles

结合华东地区积累的试桩资料，采用“Ｑ－Ｙ”曲线方法来求得该地区的非线性土抗力，用其作为土对桩的响应，再根据实际工程桩的受力情况，用有限元方法计算出不同型号ＰＨＣ桩的弯矩分布规律，以确定华东地区ＰＨＣ桩的合理管节长度。

Abstract Combining the accumulated test data of the East China region, the paper obtained the nonlinear earth resistance by adopting the Q-Y curre method. And then based on the acting forces of engineering pile the moment distribution law of various PHC piles by the limit element caculation is also obtained. Therefore the reasonable length of pipe section of PHC pile of the East China region is determined.