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Life Cycle Cost and...
Life Cycle Cost and Life Cycle Assessment of Composite Bridge with Flat and Corrugated Webs
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- Hlal, Fatima, 1989 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Amani, Mozhdeh, 1985 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Nilsson, Peter, 1982 (author)
- WSP Sverige AB
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- Hollberg, Alexander, 1985 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- al-Emrani, Mohammad, 1967 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2023
- 2023
- English.
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In: ce/papers. ; 6, s. 574-579
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https://doi.org/10.1...
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Abstract
Subject headings
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- To satisfy the sustainability criteria, a bridge design must be economically viable during its entire service life with a minimal impact on the environment. While stainless steel is known for its excellent life cycle performance, its high cost prevents it from being used in bridges to a larger extent. This study evaluates a new design solution that takes advantage of using corrugated web in bridge girders to overcome this issue. Three design concepts are evaluated for a three-span case-study bridge. These include a bridge with carbon steel flat web, stainless steel flat web, and stainless-steel corrugated web girders. Each design is optimized using a genetic algorithm. The three optimal solutions are then evaluated in terms of investment costs, life cycle costs (LCC) and life cycle impact. The results show that the investment costs in a flat web girder bridge increase by 27% when stainless steel is used instead of C-Mn (carbon) steel. However, this increase is only 10% when corrugated web girders are used. On the other hand, the LCC savings increase from 6% to 18% for corrugated web girders. Finally, the use of corrugated web in stainless steel leads to a reduction in the climate impacts of up to 32% compared to carbon steel for the studied bridge.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering (hsv//eng)
Keyword
- Road bridges
- Stainless steel
- Corrugated web
- Investment cost
- LCC
- LCA
- Duplex
- Optimization
- genetic algorithm
- Composite bridges
Publication and Content Type
- art (subject category)
- ref (subject category)
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