The paper is focused on evaluation of the effect of quality of concrete and construction workmanship on the reliability of beams. The reliability analysis is performed for moments and shear forces in steel beams. The basic resisance parameters considered in this study are bias factor and coefficient of variation. The calculated reliability indices indicate that bias factor is the most critical parameter that determines the structural performance.

• Eom, Junsik(상지대학교 건설시스템공학과 교수, 공학박사) | 엄준식
• Choi, Jongdae(상지대학교 건설시스템공학과, 박사과정) | 최종대