Cost and environmental analyses of reinforcement alternatives for a concrete bridge

Thomas Cadenazzi, Giovanni Dotelli, Marco Rossini, Steven Nolan, Antonio Nanni

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Reinforced Concrete (RC) and Prestressed Concrete (PC) structures using conventional materials in aggressive exposure conditions are susceptible to corrosion. Non-corrosive reinforcement materials such as: Glass Fiber-Reinforced Polymer (GFRP) rebars; Carbon Fiber-Reinforced Polymer (CFRP) strands; Stainless-Steel (SS); and Epoxy-coated steel (ECS) reinforcing bars, are attracting attention as more appropriate options in concrete structures. This paper addresses a Life Cycle Cost (LCC) analysis that verifies the cost performance of four different alternative reinforcement bars for the design of a demonstration FRP-RC/PC bridge in Florida, namely Halls River Bridge (HRB). The four different alternatives to be compared are namely Carbon Steel (CS), SS, FRP, and ECS, and the analysis is performed over 100-years. Additionally, a Life-Cycle Assessment (LCA) is included in the analysis to investigate the environmental credentials of the four design alternatives. Cost sensitivity analyses over specific parameters are included. The parameters analyzed are: reinforcement cost, changes in chloride concentration levels over the bridge service life, and discount rate values. Conclusions and recommendations for standard practices and design of future alternative solutions are then presented.

Original languageEnglish (US)
JournalStructure and Infrastructure Engineering
DOIs
StateAccepted/In press - Jan 1 2019

Keywords

  • bridge design
  • decision-making
  • epoxy coated steel
  • FRP-RC/PC bridge
  • Halls River Bridge
  • life-cycle assessment
  • life-cycle cost
  • stainless-steel
  • sustainable construction

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Safety, Risk, Reliability and Quality
  • Geotechnical Engineering and Engineering Geology
  • Ocean Engineering
  • Mechanical Engineering

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