The first quarter material which consists of the junction structural null concrete

摘要

PROBLEM TO BE SOLVED: To provide a joining structure between a steel pipe and a concrete member excellent in fatigue resistance in simple constitution and without any weak point on the structure.;SOLUTION: A plurality of ribs 22 are welded and joined on the inner face of the end of the steel pipe 22 along the axial direction of the steel pipe. These ribs are mutually joined in the neighborhood of the center part of the steel pipe, and projected to be extended from the end of the steel pipe 21. A plurality of opening holes are provided on the projection part, and embedded in the concrete member 11 joined to the steel pipe 21. In addition, concrete 25 or mortar is filled into the inside of the steel pipe of a part welded on the rib. A PC steel rod is arranged along the plurality of the ribs welded and joined in the steel pipe, projected from the end of the steel pipe, and may be embedded in the concrete member joining it. The PC steel rod is locked on the rib in the joining structure, and integrated with the steel pipe by the adhesion force of concrete or mortar filled into the steel pipe.;COPYRIGHT: (C)2001,JPO