ABSTRACT
ABSTRACT: In order to upgrade design codes for highway bridges, reliability-based design methods covering a limit state design and a load and resistance factor design (LRFD) have been investigated. In this study, limit state probabilities of analytical models designed by the LFD considering both different load factors for various geometric shapes of structures and load combinations of D + E and D + L + E are evaluated. As the results, it is clarified that the condition of the load combinations of D + L + E is more critical as an ultimate limit state than that of D + E. This study also confirms that extremely uniform limit state probabilities of the group of rigid frame piers designed by considering various load factors can be calculated.
