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이득행 ( Lee Deuck Hang ),김강수 ( Kim Kang Su ) 한국구조물진단유지관리공학회 2009 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.13 No.1
In existing post-tension(PT) slab system, anchorage is typically located at the edge of slab, and temporary installations of additional froms are required to set the anchorage. In previous research, authors proposed the top jacking anchorage system to improve the constructability of existing PT methods. The stress distribution at anchorage zone, however, is very different from the existing systems because jacking at interior slab induces tensile stresses at the back of anchorage. Structural design provisions have not yet suggested the design details suitable for proposed anchorage system. Therefore, this research presents a detailed design example including reasonable reinforcement details resisting against the spalling, bursting, and tensile stresses at the back of anchorage based on code requirements and strut-tie model.