웨브를 볼트 접합한 보 플랜지 절취형 접합부의 회전능력평가

Abstract

The purpose of this study is to propose a new design provisions for Reduced Beam Section with bolted web(RBS-B) connections for seismic applications at IMF system. This study is evaluating the rotation capacity of RBS-B connections. RBS connections are newly developed connections for high ductility and energy dissipation capacity. However some experimental specimens have been demonstrated that RBS-B connection was abnormally failed at the face of column and did not satisfy the enough plastic rotation capacity required for that of region of high seismicity. This experimental results were considered and limitation range of RBS-B connections was revised at IMF systems(ANSI/AISC 358-05). In this study, a number of parameters which influence the behavior of RBS-B connection were considered and proposed the new RBS-B design provisions for IMF system's limitation value by using dominated parameters at plastic capacity of RBS-B connection.