PILE HEAD SEMI-RIGID CONNECTION STRUCTURE OF CAST-IN-SITE CONCRETE PILE

摘要

PROBLEM TO BE SOLVED: To provide a pile head semi-rigid connection structure that can easily secure further sufficient shear capacity, even if a tension load acts on the pile head semi-rigid connection structure, at the same time when preferably reducing flexural rigidity of the pile head.SOLUTION: Two or more anchoring reinforcement 24 are arranged in the peripheral area of a small diameter joint 18, and one end thereof is swallowed in concrete of a pile head and the other end is swallowed in the concrete of an RC structure foundation 16, and thereby the RC structure foundation is connected to the pile head. Also, a central steel material 26 is surrounded and disposed by two or more anchoring reinforcements 24 in the central area of the small diameter joint 18, and one end thereof is swallowed in concrete of the pile head and the other end is swallowed in the concrete of the RC structure foundation, and thereby the RC structure foundation is connected to the pile head. Furthermore, the concrete of the pile head surrounding one end of the central steel material 26 is restrained by an intensive reinforcing bar 28.SELECTED DRAWING: Figure 1