Structural performance evaluation of precast FRP-concrete composite deck with concrete wedge for cable-stayed bridge

Abstract

Despite of the large contribution of the deck in the whole weight of the superstructure, the deck occupies a small portion of the construction costs in cable-stayed bridges. The application of high performance materials for the deck can represent a fair alternative to reduce the weight of the deck and improve the economic efficiency of the bridge even if high performance materials are costly. Accordingly, KICT developed a precast FRP-concrete composite deck to provide such solution. The self-weight of this new-type deck is reduced to 60% compared to the conventional precast concrete deck. In this study, experiments on several beams were performed in order to investigate the behavioral characteristics of the deck and verify its structural performance. © Tsinghua University Press, Beijing and Springer-Verlag Berlin Heidelberg 2011.