Abstract
The objective of this study is to examine the practicability of the simplified connection of pile head and pile cap for precast concrete pile. Simplified connection is such a method that the pile head is buried in pile cap with 10cm depth, and plain concrete is filled inside up to the depth corresponding to 60 cm (1D). In this paper, we describe experimental results of full-scale bending-shear tests for connection of pile head under various axial load conditions, in order to investigate mechanical characteristics of simplified connection. The experimental results are as follows: (1) Degree of restraint against rotation of simplified connection depends on pile head s moment and axial load. (2) Degree of restraint against rotation of simplified connection is about 0.7 times of usual connection under stationary axial load condition. (3) Simplified connection has adequate shear strength under the condition when pull force does not act on pile head.
