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Jun 7, 2016
A Risk-Based Structural Assessment Approach for Port Metro Vancouver’s Asset Management
Authors: Houman Ghalibafian, Ph.D. [email protected], Laura Quiroz, M.A.Sc. [email protected], Gary St. Michel [email protected], and Mo Mofrad, M.Eng. [email protected]Author Affiliations
Publication: Ports 2016
Abstract
This paper presents a risk-based structural assessment methodology used in conjunction with a life cycle cost analysis to assist Port Metro Vancouver develop a multi-year works program with funding needs for maintaining the reliability of its assets. The risk measure is based on the probability of structural failure and the monetary consequence of failure, and accounts for the deterioration of material over time. For steel, the corrosion rate was used as the measure of deterioration. For reinforced concrete, material modelling estimated the rate of degradation, the onset and the progression of rebar corrosion over time. The failure probabilities were estimated first by assuming that no repair or rehabilitation is performed. Then various scenarios of preventative risk mitigation measures were considered, and their associated costs were used in the life cycle cost analysis to develop strategies for asset management. An example of the completed projects, the merits, and the limitations of this approach are presented.
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© 2016 American Society of Civil Engineers.
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Published online: Jun 7, 2016
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Affiliations
P.Eng.
HXG Consulting Engineering, Inc., 208-1868 W 5th Ave., Vancouver, BC, Canada V6J 1P3; formerly, Tetra Tech EBA. E-mail: [email protected]
E.I.T.
Tetra Tech EBA Inc., 1000-885 Dunsmuir St., Vancouver, BC, Canada V6C 1N5. E-mail: [email protected]
P.Eng.
Tetra Tech EBA Inc., 1000-885 Dunsmuir St., Vancouver, BC, Canada V6C 1N5. E-mail: [email protected]
P.Eng.
Port Metro Vancouver, 100 The Pointe, 999 Canada Place, Vancouver, BC, Canada V6C 3T4. E-mail: [email protected]
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