Risk Based Maintenance for Swiss Railway Bridges: Concept, Implementation and First Experiences

Proske, Dirk; Friedl, Herbert; Payeur, Jean-Baptiste; Girardin, Blaise (2022). Risk Based Maintenance for Swiss Railway Bridges: Concept, Implementation and First Experiences Acta Polytechnica CTU Proceedings(36), pp. 167-174. Czech Technical University in Prague 10.14311/APP.2022.36.0167

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The Swiss Federal Railway (SBB) has an inventory of approx. 6,000 bridges. So far, condition classes of the individual bridges have been used for maintenance management. To improve the efficiency of the maintenance management, a long-term change from the condition class-based approach to a risk-based approach is considered. Such a risk-based approach was developed and implemented during a two-stage process into software (Excel and Python). The software was also linked to the SBB databases to access the relevant data. The Python software now includes 12 parameters to adapt the initial failure probability to specific bridge conditions and 15 damage parameters. So almost 30 parameters are used to compute the risk for each bridge. The software is also linked to geographical maps to show the location of the bridges. Besides the development of the approach, also the first experience of the application of this methodology will be discussed. For example, the risk-based ranking of the bridges clearly showed that specific bridge types are dominating. Also, some original ideas and concepts were not applicable due to difficulties in providing the required input data. However, currently the risk-based bridge ranking complies well with former investigations carried out by hand.

Item Type:	Journal Article (Original Article)
Division/Institute:	School of Architecture, Wood and Civil Engineering School of Architecture, Wood and Civil Engineering > Institute for Urban Development and Infrastructure School of Architecture, Wood and Civil Engineering > AHB Teaching School of Architecture, Wood and Civil Engineering > Institute for Infrastructure and Environment IIU
Name:	Proske, Dirk; Friedl, Herbert; Payeur, Jean-Baptiste and Girardin, Blaise
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TG Bridge engineering
ISSN:	978-80-01-07035-2
Publisher:	Czech Technical University in Prague
Language:	English
Submitter:	Dirk Proske
Date Deposited:	14 Sep 2022 10:55
Last Modified:	14 Sep 2022 10:55
Publisher DOI:	10.14311/APP.2022.36.0167
Uncontrolled Keywords:	Bridges, collapse Condition class Damage Probability of failure Risk assessment
ARBOR DOI:	10.24451/arbor.17711
URI:	https://arbor.bfh.ch/id/eprint/17711