APPLICATION OF U-SHAPED REINFORCING BARS TO MIDDLE-RISE OFFICE BUILDING JOINTS OF SRC-COLUMNS TO STEEL BEAMS

Abstract

A new type SRC-column to S-Beam joint which composed of U-shaped reinforcing bars and horizontal diagonal diaphragms, is proposed and is applied to a 9-story office building. This joint has been developed to obtain good quality of cast-insited concrete in the joint and good seismic performance of the joint, and also to simplify actual execution at the site. In this paper, outline of the objective building, structural design method, lateral loading test of interior beam and column subassemblage and results of actual execution of the joint are shown.