In this study, a reduction in inter-laminar shear strength of FRP reinforcing bars, which is domestically produced, subjected to high temperatures was investigated. The inter-laminar shear tests were conducted on the rebar specimens conditioned in a chamber for specified times at high temperatures. The exposure temperatures were 100℃∼300℃, The exposure time were 0.5 hours to 4 hours. It was found that the critical temperature was for both GFRP and CFRP reinforcing bars, 270℃. Based on the results, a linear equation for evaluation of the effect of exposure time is proposed.

• 문도영(경성대학교 토목공학과 조교수) | Moon, Do Young
• 김민철(경성대학교 토목공학과 석사과정) | Kim, Min Cheol
• 박성재(경성대학교 토목공학과 석사과정) | Park, Sung Jae