Design and Construction of a Bridge Deck using （桥面使用的设计和施工）.pdfVIP

SP-230—63 Design and Construction of a Bridge Deck using Mild and Post-Tensioned FRP Bars by R. Fico, N. Galati, A. Prota, and A. Nanni Synopsis:Synopsis: Synopsis: The type of structure selected for this research project is a four-span Synopsis:Synopsis: continuous concrete slab having GFRP bars for top and bottom mats and CFRP reinforcement for internal post-tensioning. The bridge is located in Rolla, Missouri (Southview Drive on Carter Creek). One lane of the bridge was already built using a conventional four-cell steel reinforced concrete box culvert. One lane and sidewalk needed to be added and were constructed using FRP bars. This study includes design of the FRP portion of the bridge using existing codes, validation of the FRP technology through a pre-construction investigation conducted on two specimens representing a deck strip, and construction of the bridge; the results showed how FRP, in the form of GFRP as passive and CFRP bars as active internal reinforcement, could be a feasible solution replacing the steel reinforcement of concrete slab bridges, and specifically the enhanced shear capacity of the slab due to the CFRP prestressing. Keywords: anchoring systems; bridge deck; FRP tendons; post- tension 1121 1122 Fico et al. Raffaello Fico is a Ph.D student at the University of Naples Federico II, Italy. He performed his undergraduate thesis in collaboration with the University of Missouri-Rolla on the same topic of this paper. He was the supervisor of the installation of Southview bridge deck. Nestore Galati is a research engineer at the University of Missouri–Rolla. He obtained is PhD in Civil Engineering at the University of Lecce-Italy where he also received his B.Sc. in Materials Engine