A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Assessment and Rehabilitation Strategies/Guidelines to Maximize the Service Life of Concrete Structures
This report presents a spreadsheet tool for evaluating life-cycle maintenance strategies for existing concrete bridge decks that have deteriorated as a result of chloride-induced corrosion. The spreadsheet tool construct a performance curve for existing bridge decks, computes the estimated service life of common treatments for bridge decks such as patching, concrete or asphaltic overlays as well as that of a new deck with epoxy coated bars, conducts a life-cycle cost analysis for common maintenance scenarios, and determines the optimal maximum (tolerable) condition index that minimizes total life-cycle maintenance cost. The life-cycle cost analysis is probabilistic. Also, this report provides a library of alternative life-cycle treatment scenarios and offers distribution functions for estimated unit costs. Both agency and user costs are considered. A case study analysis was conducted using the tool. Findings and conclusions suggest that the least cost maintenance scenario may depend on the choice of discount rate. The most significant findings are that total life-cycle cost (user cost plus agency cost) is a function of the maximum tolerable condition S(sub m.) and that the function can be optimized to find the value of S(sub m) that minimizes the total life-cycle cost.
Assessment and Rehabilitation Strategies/Guidelines to Maximize the Service Life of Concrete Structures
This report presents a spreadsheet tool for evaluating life-cycle maintenance strategies for existing concrete bridge decks that have deteriorated as a result of chloride-induced corrosion. The spreadsheet tool construct a performance curve for existing bridge decks, computes the estimated service life of common treatments for bridge decks such as patching, concrete or asphaltic overlays as well as that of a new deck with epoxy coated bars, conducts a life-cycle cost analysis for common maintenance scenarios, and determines the optimal maximum (tolerable) condition index that minimizes total life-cycle maintenance cost. The life-cycle cost analysis is probabilistic. Also, this report provides a library of alternative life-cycle treatment scenarios and offers distribution functions for estimated unit costs. Both agency and user costs are considered. A case study analysis was conducted using the tool. Findings and conclusions suggest that the least cost maintenance scenario may depend on the choice of discount rate. The most significant findings are that total life-cycle cost (user cost plus agency cost) is a function of the maximum tolerable condition S(sub m.) and that the function can be optimized to find the value of S(sub m) that minimizes the total life-cycle cost.
Assessment and Rehabilitation Strategies/Guidelines to Maximize the Service Life of Concrete Structures
T. M. Adams (author) / J. A. Pincheira (author) / Y. H. Huang (author)
2001
80 pages
Report
No indication
English
British Library Online Contents | 2013
| British Library Conference Proceedings | 2003
Strategies for management and rehabilitation of concrete structures
| British Library Conference Proceedings | 2003
Corrosion and Service Life Assessment of Concrete Structures
| Springer Verlag | 2022
Reliability-Based Service-Life Assessment of Aging Concrete Structures.
| Online Contents | 1993