Columnbeam connection Ⅰ

[2053] EFFECT OF STIRRUPS ARRANGEMENT ON FAILURE OF BEAM COLUMN JOINT WITH MECHANICAL ANCHORAGES BY 3D DISCRETE MODEL

Liyanto EDDY¹, Kohei NAGAI² (1.The University of Tokyo, Department of Civil Engineering 2.東京大学Civil Engineering)

Keywords:anchorage failure, knee-joints, local re-bars arrangement, mechanical anchorage, RBSM

The use of mechanical anchorage is still limited because the performance has not been well understood. In this study, a 3D meso-scale discrete analysis is conducted in order to investigate the effect of the stirrups arrangement on the failure of beam column joints with mechanical anchorages through the comparison with the experimental results. The simulation results are in good agreement with the experimental results. Based on the simulation results, the causes of major cracks are described. Eventually, the failure process of beam column joints with mechanical anchorages has been revealed through the study of the internal stress and the cracking pattern of RBSM.