LOife-cycle analysis of deteriorating infrastructure systems

R. Kumar, P. Gardoni

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Life-Cycle Analysis (LCA) is the process of predicting the performance of a system over its entire life-span (or life-cycle). In general, LCA may include assessment of the life-time reliability, the life-cycle cost and the benefit derived from having a system. LCA is useful in integrating all the stages of engineering a system (i.e., design, manufacturing and operation) in an efficient and optimal manner. Infrastructure systems are expensive to build, and their proper design and maintenance is essential for safety and economy. The objective of this work is to develop a general LCA model for engineering systems that may experience deterioration over time. The LCA models existing in the literature do not comprehensively present all the variables that affect engineering decisions and hence must be considered in LCA. Based on the proposed LCA model, we present analytical solutions, using renewal theory, to compute a number of LCA variables such as costs and benefits of operating a system, level of deterioration in the system and disruption in service. As an illustration of the model, an example is presented that represents a general deteriorating infrastructure system. The analysis shows the multi-faceted effect of engineering decisions on the life-cycle of a system.

Original languageEnglish (US)
Title of host publicationSafety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013
Pages1771-1776
Number of pages6
StatePublished - 2013
Event11th International Conference on Structural Safety and Reliability, ICOSSAR 2013 - New York, NY, United States
Duration: Jun 16 2013Jun 20 2013

Publication series

NameSafety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013

Other

Other11th International Conference on Structural Safety and Reliability, ICOSSAR 2013
Country/TerritoryUnited States
CityNew York, NY
Period6/16/136/20/13

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality

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