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Bridge Life Cycle Cost Optimization: Analysis, Evaluation & Implementation
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering. (TISEM)
2009 (English)Independent thesis Advanced level (degree of Master (Two Years)), 30 credits / 45 HE creditsStudent thesisAlternative title
Bridge LCC (English)
Abstract [en]

In infrastructure construction projects especially bridge investments, the most critical decisions that significantly affect the whole bridge LCC are the early stages decisions. Clearly, it's more beneficial to correctly choose the optimum bridge than to choose the optimum construction or repair method.

The ability of a bridge to provide service over time demands appropriate maintenance by the agency. Thus the investment decision should consider not only the initial activity that creates a public good, but also all future activities that will be required to keep that investment available to the public.

This research is aiming for bridge sustainability, enhance the bridge related decision making, and facilitate the usage of the bridge related feedbacks. The development of a reliable and usable computer tool for bridge LCC & LCA evaluation is the main target.

Toward the main goal, many steps were fulfilled. A unique integrated Bridge LCC evaluation methodology was developed. Two systematic evaluation ways were developed, one for bridge user cost and one for the bridge aesthetical and cultural value. To put these two systematic ways in practice, two preliminary computer programs were developed for this purpose. Today and future works are focusing on developing methodology and preliminary computer tool for bridge agency cost as well as the bridge LCA evaluation. KTH unique LCC evaluation system will enable the decision makers to correctly choose the optimum bridge in the early stages decision making phases as well as any later on reparation method.

Place, publisher, year, edition, pages
2009. , viii, 74 p.
, Trita-BKN Master thesis, ISSN 1103-4297 ; 278
Keyword [en]
Bridge, LCC, LCA, LCCA, Life cycle cost, Invironmental Impact, Bro, User Cost
National Category
Civil Engineering Other Civil Engineering Reliability and Maintenance
URN: urn:nbn:se:kth:diva-11908ISRN: KTH/BKN/EX-278-SEOAI: diva2:289293
2009-05-29, Egn Sal, Brinellvägen 34, KTH, Stockholm, 12:45 (English)
Available from: 2010-01-29 Created: 2010-01-24 Last updated: 2010-07-13

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