횡보강근이 있는 확대머리 철근의 TTC 절점 내 정착성능 평가

초록

In this study, anchorage capacity of headed bars with transverse reinforcement was evaluated. To conduct evaluation of anchorage capacity in realistic anchor age condition of flexural members, where shear force exists, TTC node test, which can consider the cut-off region, was conducted. The test results show that all specimens were failure due to concrete tensile failure around head. Analysis results show that failure mode results from side split, which is caused by prying action and that prying action was prevented with transverse reinforcem ent. It shows that anchorage capacity of headed bars increase by effect of transverse reinforcement.