This paper presents an analytical approach to evaluate a possibility of progressive collapse of reinforced concrete frame structure. In order to simulate adequate behavior of the structure, we considered the bond failure of lap spliced bars due to concrete crack in a plastic hinge region. Bond characteristic was modeled in the analysis by using previous bond-slip relation and the effect of it was evaluated.
Analysis result gave that there was additional deflection due to the bond failure of bar in beams at the node where the increasing displacement load was applied.

• 이승준(한국교통대학교 건축공학과 대학원생) | Lee, Seung-jun
• 연제영(한국교통대학교 건축공학과 대학원생) | Yeon, Jae-yeong
• 김정훈(한국교통대학교 건축공학과 대학원생) | Kim, Jeong-hun
• 서수연(한국교통대학교 건축공학과 교수, 공학박사) | Seo, Soo-yeon
• 최기봉(가천대학교 건축공학과 교수, 공학박사) | Choi, Ki-bong
• 박형주(가천대학교 건축공학과 교수, 공학박사) | Park, Hyung-ju