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LCC Applications for Bridges and Integration with BMS
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
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 [en]
Bridge, Management, life-Cycle Costing, LCC, Bridge Management System
National Category
Civil Engineering
Research subject
SRA - Transport; Järnvägsgruppen - Infrastruktur
Identifiers
URN: urn:nbn:se:kth:diva-90342OAI: oai:DiVA.org:kth-90342DiVA: diva2:505020
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
List of papers
1. Development of the Swedish Bridge Management System by Upgrading and Expanding the Use of LCC
Open this publication in new window or tab >>Development of the Swedish Bridge Management System by Upgrading and Expanding the Use of LCC
2013 (English)In: Structure and Infrastructure Engineering, ISSN 1573-2479, E-ISSN 1744-8980, Vol. 9, no 12, 1240-1250 p.Article in journal (Refereed) Published
Abstract [en]

Although many bridge management systems (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 to support decisions related to existing bridges. LCC has several useful applications within the bridge entire life, from cradle to grave. This paper introduces the Swedish Bridge and Tunnel Management System (BaTMan). A comprehensive integrated LCC implementation schema will be illustrated, taking into account the bridge investment and management process in Sweden. The basic economic analytical tools as well as other helpful LCC techniques are addressed. A real case study is presented to demonstrate the recent improvement of BaTMan practically in the function of whether to repair or to replace a bridge.  Cost records for 2,508 bridges are used as input data in the presented case study. Considering the same records, the average real and anticipated initial costs of different bridge types in Sweden will be schematically presented.

Place, publisher, year, edition, pages
UK: Taylor & Francis Group, 2013
Keyword
Bridge, Management, life-Cycle Costing, LCC, Bridge Management System, BMS, BaTMan, repair.
National Category
Civil Engineering
Research subject
Järnvägsgruppen - Infrastruktur; SRA - Transport
Identifiers
urn:nbn:se:kth:diva-72468 (URN)10.1080/15732479.2012.682588 (DOI)000320575100004 ()2-s2.0-84879649860 (Scopus ID)
Funder
TrenOp, Transport Research Environment with Novel Perspectives
Note

QC 20150630

Available from: 2012-01-31 Created: 2012-01-31 Last updated: 2017-12-08Bibliographically approved
2. Applications of life-cycle costing for bridges and integration with bridge management systems
Open this publication in new window or tab >>Applications of life-cycle costing for bridges and integration with bridge management systems
(English)In: Civil Engineering and ArchitectureArticle in journal (Refereed) Accepted
Abstract [en]

Many countries are using bridge management systems(BMSs) as the main toll for the effective management of their bridges. Althoughmany BMSs contain some forms of life-cycle cost analysis (LCCA), the use of LCCAin bridge engineering is scarce and LCCA has mainly been applied to supportdecisions related to existing bridges. This paper discuss the need of a BMSwith an integrated LCCA tool that can assist decision makers at all levels andwithin all phases in selecting the most cost-effective solution from an arrayof applicable alternatives. The paper introduces the Swedish Bridge and TunnelManagement System (BaTMan). A comprehensive LCCA implementation scheme will beillustrated, taking into account the bridge investment and management processin Sweden. The basic LCCA analysis tools as well as other helpful techniquesare addressed. A real case study is presented to demonstrate the recentimprovement of BaTMan particularly in the function of specifying the most-costeffective bridge repair strategy. The bridge user cost is included in the LCCA.The parameters that can influence the final decision are addressed andsensitivity analyses to study their impacts are performed.

Keyword
Bridge, Management, life-Cycle Costing, LCC, Bridge Management System, BMS, BaTMan, repair.
National Category
Civil Engineering
Research subject
Järnvägsgruppen - Infrastruktur; SRA - Transport
Identifiers
urn:nbn:se:kth:diva-72487 (URN)
Funder
TrenOp, Transport Research Environment with Novel Perspectives
Note

QS 2012

Available from: 2012-01-31 Created: 2012-01-31 Last updated: 2013-10-29Bibliographically approved
3. Life-Cycle Costing Integration with Bridge Management Systems
Open this publication in new window or tab >>Life-Cycle Costing Integration with Bridge Management Systems
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.

Keyword
Bridge, Management, life-Cycle Costing, LCC, Bridge Management System, BMS, BaTMan, repair.
National Category
Civil Engineering
Research subject
Järnvägsgruppen - Infrastruktur; SRA - Transport
Identifiers
urn:nbn:se:kth:diva-72492 (URN)
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

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