Existing approaches on flexural analysis of unbonded post-tensioned concrete beams are very difficult to be applied to estimation of service load behavior up to failure. In this study, theorectical flexural behavior model for post-tensioned members with unbonded tendons was, therefore, proposed based on the basic concept of idealization of curvature distribution within maximum moment region in a simple manner, which was previously developed by authors. The proposed model can predict the service load behavior as well as ultimate strength, and it is confirmed that this concept can be extended to estimate the flexural behavior of continuous unbonded post-tensioned members.

• 이득행(서울시립대학교 박사과정) | Lee, Deuck Hang
• 황진하(서울시립대학교 박사과정) | Hwang, Jin-Ha
• 주현진(서울시립대학교 박사과정) | Ju, Hyun Jin
• 오재열(서울시립대학교 박사과정) | Oh, Jae Yuel
• 김강수(서울시립대학교 교수, 공학박사) | Kim, Kang Su Corresponding Author