A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Assessing preservation needs for a bridge network: a comparison of alternative approaches
This paper describes a methodology for bridge preservation needs assessment on the basis of two alternative approaches. The age based approach uses specified time intervals between preservation treatments, while the performance based approach uses functional and structural performance thresholds and deterioration functions. Both approaches involve the use of bridge specific parameters and preservation costs. The paper argues that the performance based approach has greater potential to yield more reliable needs estimates. Applying the methodology to a test network of highway bridges in Indiana, it is seen that 25% of the inventory will need preservation during the 2005 – 2015 analysis period at an estimated cost of $882 million. Three hundred and forty-five bridges will need replacement at a cost of $449 million, and 935 bridges will need rehabilitation at a cost of $433 million. The most frequently prescribed preservation activities in the analysis period are deck rehabilitation, deck replacement, and bridge replacement. The monetary amounts shown are in Year 2002 constant dollars.
Assessing preservation needs for a bridge network: a comparison of alternative approaches
This paper describes a methodology for bridge preservation needs assessment on the basis of two alternative approaches. The age based approach uses specified time intervals between preservation treatments, while the performance based approach uses functional and structural performance thresholds and deterioration functions. Both approaches involve the use of bridge specific parameters and preservation costs. The paper argues that the performance based approach has greater potential to yield more reliable needs estimates. Applying the methodology to a test network of highway bridges in Indiana, it is seen that 25% of the inventory will need preservation during the 2005 – 2015 analysis period at an estimated cost of $882 million. Three hundred and forty-five bridges will need replacement at a cost of $449 million, and 935 bridges will need rehabilitation at a cost of $433 million. The most frequently prescribed preservation activities in the analysis period are deck rehabilitation, deck replacement, and bridge replacement. The monetary amounts shown are in Year 2002 constant dollars.
Assessing preservation needs for a bridge network: a comparison of alternative approaches
Labi, Samuel (author) / Rodriguez, Marcela M. (author) / Sinha, Kumares C. (author)
Structure and Infrastructure Engineering ; 4 ; 221-235
2008-06-01
15 pages
Article (Journal)
Electronic Resource
Unknown
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