STRUCTURE OF REINFORCEMENT CAGE

PROBLEM TO BE SOLVED: To provide structure of a reinforcement cage capable of constructing a cast-in-place pile favourable in workability and of high quality by reducing causes to generate corrosion of a reinforcement by increasing bond strength with concrete and dispersing cracks by a simple method. SOLUTION: It is structure of a reinforcement cage to be constituted of a flexible reinforcement and a tie hoop to be used for a cast-in-place pile. In this case, a deformed bar 5 is installed in the extending direction of the reinforcement cage 1 to be constituted of the flexible reinforcement 2 and the tie hoop 4. Additionally, the deformed bar 5 is installed with each of specified intervals in the extending direction of the reinforcement cage 1.