This paper presents the development of LRFD codes for axially-loaded driven piles in sands. Reliability analyses were performed using the AFOSM and finally, reasonable resistance factors of base and shaft resistances were calculated base on the results of reliability analyses for different target reliability index levels. From the results of extensible reliability analyses using AFOSM, resistance factors for base and shaft resistances were found to be highly dependent on the ratios of dead-to-live load and ultimate base resistance to limit shaft resistance. Resistance factors are proposed for different combinations of these ratios within their possible ranges.

• 임재춘(조선대학교 대학원 토목공학과 박사과정) | Lim, Jae-Choon
• 김현태(조선대학교 대학원 토목공학과 박사과정) | Kim, Hyeon-Tae
• 김대현(조선대학교 공과대학 토목공학과 조교수, 공학박사) | Kim, Dae-Hyeon
• 박주원((주)서림 대표이사, 공학박사) | Park, Ju-Won
• 이증빈((주)서림 부회장, 공학박사) | Lee, Cheung-Bin