Tensile Capacity and Anchorage Length Experiment of Chemically-Planted Steel Bar Member

Abstract

Post-installed fastenings (chemically-planted steel bar) technology of stressed steel bar is widely adopted in structural transformation and reinforcement project, and researching anchoring section of post-installed reinforcing bars is of great significance. Through the tensile capacity experiment of chemically-planted steel bar member, failure modes was observed in static limit state, and the damage reasons and influence factors were analyzed. The strain change along the length direction of post-installed reinforcing bars was determined, and the change discipline of steel stress and corresponding stress-strain curves were obtained. Through the anchorage length experiment of chemically-planted steelbar member, steel strain and ultimate uplift bearing capacity change in concrete structure under different planting bar length was determined, and the optimal anchorage length was obtained.