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Development of the Swedish bridge management system by introducing a LMS concept
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering.
2005 (English)In: Materials and Structures, ISSN 1359-5997, E-ISSN 1871-6873, Vol. 40, no 6, 627-639 p.Article in journal (Refereed) Published
Abstract [en]

The Swedish Road Administration (SRA) has developed an information technology (IT) based bridge and tunnel management system (BaTMan) that is widely implemented by the organisation. The system is a tool for operational, tactical and strategic management. However, this system does not include systems and tools for managing optimisation and long-term planning of␣Maintenance, Repair and Rehabilitation (MR&R) actions due to service life performance aspects. This paper discusses the need of service life performance analysis for sound optimisation and long-term planning of MR&R actions in the bridge management. The paper presents a service life performance analysis model that is based on a Markov chain model and the MEDIC method. The model is developed to manage different kinds of degradation characteristic and yet present a uniform result expressed in conditional probabilities. The paper discusses also the need of systems and tools for describing objects on both an overall level and on a component level.

Place, publisher, year, edition, pages
2005. Vol. 40, no 6, 627-639 p.
Keyword [en]
Service life performance analysis - Bridge management system - Markov chain - Maintenance
National Category
Building Technologies
Identifiers
URN: urn:nbn:se:kth:diva-8826DOI: 10.1617/s11527-006-9175-zISI: 000244454700008OAI: oai:DiVA.org:kth-8826DiVA: diva2:14282
Note
QC 20100716Available from: 2005-11-29 Created: 2005-11-29 Last updated: 2010-11-30Bibliographically approved
In thesis
1. Development and adaptation of a life cycle management system for constructed work
Open this publication in new window or tab >>Development and adaptation of a life cycle management system for constructed work
2005 (English)Licentiate thesis, comprehensive summary (Other scientific)
Abstract [en]

Lifetime Engineering (or Life Cycle Engineering) is a technical approach for meeting the current objective of sustainable development. The approach is aimed to turn today’s reactive and short-term design, management and maintenance planning towards an optimised and long-term technical approach. The life cycle based management and maintenance planning approach includes condition assessment, predictive modelling of performance changes, maintenance, repair and refurbishment planning and decisions. The Life Cycle Management System (LMS) is a predictive and generic life cycle based management system aimed to support all types of decision making and planning of optimal maintenance, repair and refurbishment activities of any constructed works. The system takes into account a number of aspects in sustainable and conscious development such as human requirements, life cycle economy, life cycle ecology and cultural requirements. The LMS is a system by which the complete system or parts thereof, works in co-operation or as a complement to existing business support systems. The system is module based where each module represents a subprocess within the maintenance management process. The scope of this thesis is focused on development and adaptation of the predictive characteristic of LMS towards a presumptive user. The objective is to develop and adapt a Service Life Performance Analysis module applicable for condition based Facility Management System in general and for condition based Bridge Management System in particular. Emphasis is placed on development and adaptation of a conditional probability based Service Life Performance Analysis model in which degradation models and Markov chains play a decisive role. The thesis deals also with development and adaptation of environmental exposure data recording and processing, with special emphasis on quantitative environmental classification in order to provide a simplified method of Service Life Performance Analysis.

Place, publisher, year, edition, pages
Stockholm: KTH, 2005. vii, 36 p.
Keyword
life cycle management system, maintenance, predictability, service life performance analysis
National Category
Building Technologies
Identifiers
urn:nbn:se:kth:diva-522 (URN)91-7178-161-7 (ISBN)
Presentation
2005-10-28, Hörsalen ITB-Brynäs, S. Sjötullsgatan 3, Gävle, 10:00
Opponent
Supervisors
Note
QC 20101130Available from: 2005-11-29 Created: 2005-11-29 Last updated: 2010-11-30Bibliographically approved
2. System for Predictive Life cycle Management of Buildings and Infrastructures
Open this publication in new window or tab >>System for Predictive Life cycle Management of Buildings and Infrastructures
2009 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The Life Cycle Management System (LMS) aims at supporting decision-makers and engineers in their efforts to achieve a more optimised proactive life cycle design and maintenance management strategy. LMS is an open and integrative system, which has to be adapted and developed in order to meet the needs and requirements of users. This process should be geared to and governed by the clients. The Architecture, Engineering, Construction and Facility Management (AEC/FM) sector includes all varieties of clients and stakeholders, all of them having different qualifications, possibilities and requirements for implementing, or increasing the feature of predictive maintenance management and optimised proactive strategies. The possibilities of adopting predictive maintenance management are dependent on the availability of performance-over-time and service life forecasting models and methods. The relevance of these models and methods depends on the required level of detailing. Furthermore, the use of the models and methods depends on the availability of reliable input data, such as material data and environmental exposure/in-use condition data. The thesis aims at analysing the possibilities of implementing predictivity in different fields of applications and at evaluating relevant tools facilitating management of information associated with predictive maintenance management systems. The thesis includes studies of three different clients and fields of application; Swedish Road Administration – management of bridges, Locum AB – management of hospital buildings, and Gävle Energi AB – management of district heating distribution systems. While the Swedish Road Administration is responsible to ensure an economically efficient, sustainable transport system for the society throughout the country, Locum AB and Gävle Energi AB compete on an "open" market. The Swedish Road Administration have gathered information about their bridges since 1944, for what reason their bridge management system includes a large amount of valuable data for performance-over- time analyses and service life forecasting. Locum AB has recently begun to systematically gather condition data, why the amount of data is limited. However, since the performance of buildings generally is well known, it is assumed that possibilities of implementing predictive maintenance management tools are rather good. Since district heating pipes are buried into the ground, it is difficult to assess the condition. Therefore, data for service life estimation rely mainly on damage reports. Environmental exposure data on macro or meso level can be obtained from meteorological and environmental institutes, thus making it possible to apply available dose-response and damage functions. Environmental exposure data on a micro level are lacking. Guidelines, methods and tools for environmental measuring and modelling on a micro level are therefore strongly needed. Efficient management of information plays an important role in predictive life cycle management systems. The ongoing development and implementation of open Building Information Model (BIM) tools in the AEC/FM sector is a promising progress of making the information management more cost effective and valuable, especially when open BIM solutions being fully integrated into the AEC/FM business. Geographical Information Systems (GIS) are tools for efficient handling of spatial positioned information. GIS provide possibilities of processing and presenting, e.g., environmental exposure data and environmental risk factors.

Place, publisher, year, edition, pages
Stockholm: KTH, 2009. viii, 100 p.
Keyword
Life Cycle Management System, service life, performance-over-time, maintenance management
Identifiers
urn:nbn:se:kth:diva-10312 (URN)978-91-7415-262-3 (ISBN)
Public defence
2009-04-24, Gävle Teknikpark, Hörsalen, Nobelvägen 2, Gävle, 10:00 (English)
Opponent
Supervisors
Note
QC 20100716Available from: 2009-05-06 Created: 2009-05-06 Last updated: 2012-03-14Bibliographically approved

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