在无轴压和轴压1 300 kN作用下对PHC-AB400(80)型管桩进行桩身抗剪承载力足尺构件试验.详细介绍加载装置和试验方法，得到该桩型在无轴压受剪和轴压受剪状态下的开裂荷载和极限荷载.基于管桩在无轴压受剪和轴压受剪状态下裂缝发展的观察以及对支座与加载点间剪跨段混凝土主拉应力与主拉应力角的分析，研究该桩型的破坏过程.比较由《预应力混凝土管桩图集》中的公式计算得到的数值和试验值可知，公式值约为试验值的58%.因此，建议管桩抗剪承载力的计算公式中考虑箍筋的抗剪作用.

Tests on shear capacity of the pre-stress high-strength concrete (PHC) AB400(80) pipe piles were carried out, without axial force and under an axial forces of 1 300 kN, respectively. The loading devices and testing method were introduced first in this paper. The cracking and ultimate shear capacities of PHC-AB 400(80) were obtained with and without the axial forces. The failure process during shearing was studied based on the observation of crack development and an analysis of the maximum principal stress and its angle of concrete in the shear span section. Comparison between the values of shear capacity calculated according to the Standard of Pre-stressed Concrete Pipe Pile and from the test results shows that the former is about 58% of the later. The role of stirrup should be taken into account in the formula for calculating the shear capacity of PHC pipe piles.