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Life-Cycle Costing Integration with Bridge Management Systems
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
The Swedish Transport Administration, Travikverket, Eskilstuna, Sweden.
2011 (English)In: Proceedings of the Institution of Civil Engineers: Bridge Engineering, ISSN 1478-4629, E-ISSN 1751-7680Article in journal (Other academic) Submitted
Abstract [en]

The implementation of a bridge design proposal, as well as an individual bridge structural member, generally has several alternatives to choose from. The alternatives may provide the same required function. However, each of them may has different specifications concerning its initial costs, anticipated service life, required future repairs and impacts on traffic flow during repair works. Moreover, the cost categories associated with the various alternatives are incurred at varying points in time. Life-cycle costing (LCC) is an appropriate tool that can be used to specify the most cost-effective alternative taking into account all parameters. Most of the reported LCC applications for bridges were far from ideal and were content with deterministic estimates of life cycle cost instead of using sensitivity analysis. This paper briefly describes the various bridge investment phases and demonstrates the possible applications of LCC regarding them. The economic analysis tools that LCC is based on are presented. A detailed practical example to illustrate the LCC application for bridges during design and construction phases is also presented, taking into account the bridge user costs. The analysis results highlight the great feasibility and possibility of LCC implementations for bridges.

Place, publisher, year, edition, pages
2011.
Keyword [en]
Bridge, Management, life-Cycle Costing, LCC, Bridge Management System, BMS, BaTMan, repair.
National Category
Civil Engineering
Research subject
Järnvägsgruppen - Infrastruktur; SRA - Transport
Identifiers
URN: urn:nbn:se:kth:diva-72492OAI: oai:DiVA.org:kth-72492DiVA: diva2:487689
Funder
TrenOp, Transport Research Environment with Novel Perspectives
Note
QS 2012 QS 20120316Available from: 2012-01-31 Created: 2012-01-31 Last updated: 2017-12-08Bibliographically approved
In thesis
1. LCC Applications for Bridges and Integration with BMS
Open this publication in new window or tab >>LCC Applications for Bridges and Integration with BMS
2012 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Bridges are vital links in many transport networks and represent a big capital investment for both governments and taxpayers. They have to be managed in a way that ensures society's needs are optimally met. In many countries, bridges are mainly managed using bridge management systems (BMSs). Although many BMSs contain some forms of life-cycle costing (LCC), the use of LCC in bridge engineering is scarce. LCC in many BMSs has mainly been applied within the bridge operation phase, even though it has several useful applications within the bridge entire life, from cradle to grave. This licentiate thesis discusses the need of a BMS with integrated comprehensive LCC tools that can assist decision-makers at all levels and within all phases in selecting the most cost-effective alternative from an array of applicable alternatives.

The thesis introduces the Swedish Bridge and Tunnel Management System (BaTMan). Acomprehensive integrated LCC implementation scheme is illustrated, taking into account the bridge investment and management process in Sweden. The basic LCC analytical tools as well as other helpful LCC techniques are addressed. Detailed case studies for real bridges at different investment phases are presented to demonstrate the recent improvement of BaTMan practically in the LCC integration. Cost records for 2,508 bridges extracted from BaTMan inventory data are used as input data in the presented case studies. Considering the same records, the average real and anticipated initial costs of different bridge types in Sweden will schematically be presented.

The thesis introduces a bridge LCC program developed over this research named "BaTMan-LCC". The reason for which this program was developed is to combine all possible LCC applications for bridges in one tool and facilitate its implementation. The sensitivity analysis as well as the LCC saving potential highlighted in the presented case studies emphasizes the feasibility and the possibility of developing BaTMan to accommodate the applications of BaTMan-LCC.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2012. vi, 44 p.
Series
Trita-BKN. Bulletin, ISSN 1103-4270 ; 111
Keyword
Bridge, Management, life-Cycle Costing, LCC, Bridge Management System
National Category
Civil Engineering
Research subject
SRA - Transport; Järnvägsgruppen - Infrastruktur
Identifiers
urn:nbn:se:kth:diva-90342 (URN)
Presentation
2012-03-16, M108, Brinellvägen 23, KTH,, Stockholm, 17:40 (English)
Opponent
Supervisors
Projects
ETSI
Funder
TrenOp, Transport Research Environment with Novel Perspectives
Note
QC 20120301Available from: 2012-03-01 Created: 2012-02-22 Last updated: 2012-03-01Bibliographically approved

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