Lightweight Uhpc-Frp Composite Deck System

Keywords

Bond; Bridge; Composite; Finite-element analysis; Resin infusion; Ultrahigh-performance concrete

Abstract

A new lightweight, low-profile composite deck system is presented that was fabricated using vacuum-assisted resin transfer molding. The deck in this system is composed of ultrahigh-performance concrete (UHPC) for high compressive strength and durability, carbon-fiber-reinforced polymer (CFRP) for high tensile strength, and glass-fiber-reinforced polymer (GFRP) for shear resistance. The high-performance modular deck panels are beneficial for applications such as movable bridges, where spans may be mechanically lifted, and deck repair or replacement, where transportation and installation assist in accelerated bridge construction. Seven single-unit deck specimens were fabricated with two different spans (1,220 and 864 mm) and tested under two different flexural load configurations (wheel-tire load and four-point load). The experimental results demonstrated that the target recommended strength demand for this deck was satisfied prior to failure as a result of delamination of the top UHPC plate from the core. Analysis of the results and corresponding finite-element models (FEMs) showed that the load-transfer mechanism was limited by the crushing of the UHPC plate and interfacial bond with the core.

Publication Date

7-1-2017

Publication Title

Journal of Bridge Engineering

Volume

22

Issue

7

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1061/(ASCE)BE.1943-5592.0001049

Socpus ID

85017505149 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85017505149

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