횡보강근이 없는 확대머리 철근의 TTC 절점 내정착성능 평가

초록

In this study, anchorage capacity of headed bars without transverse reinforcement was evaluated. To conduct evaluation of anchorage capacity in realistic anchorage condition of flexural members, where shear force exists, TTC node test, which can con sider the cut-off region, was conducted. The test results show that all specimens were failu re due to concrete tensile failure around head. Analysis results, which are conducted by truss model of Kim & Jeong, show that failure mode results from side split, which is early caused by shear force.