INVESTIGATION FOR DEVELOPING ANTI-FATIGUE STRENGTHENING PROCESS OF BRIDGE STEEL DECK UTILIZING ENGINEERED CEMENTITIOUS COMPOSITES

概要

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It has been reported that aged bridge steel decks tend to be severely damaged by traffic loading fatigue. However, economically effective retrofit process for these damaged steel decks has not been suggested in literature. To solve this problem, the authors investigated a new retrofit method, in which a pseudo stain hardening fiber reinforced cement composite, ECC, is effectively utilized as strengthening covering layer on steel decks. This paper describes the outline of the proposed retrofit system and the requirement for the constitutive components in the system. Analytical and experimental investigation conducted in this study revealed this system's feasibility to achieve excellent anti-fatigue performance in steel bridge deck.
社団法人　土木学会の論文