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Advanced numerical and analytical methods for assessing concrete sewers and their remaining service life

Advanced numerical and analytical methods for assessing concrete sewers and their remaining service life

Alani, Amir, Mahmoodian, Mojtaba, Romanova, Anna and Faramarzi, Asaad (2014) Advanced numerical and analytical methods for assessing concrete sewers and their remaining service life. In: ICACE 2014: International Conference on Advances in Civil Engineering, 19-20 Jun 2014, Venice, Italy. (Unpublished)

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Abstract

Pipelines are extensively used engineering structures which convey fluid from one place to another. Most of the time, pipelines are placed underground and are encumbered by soil weight and traffic loads. Corrosion of pipe material is the most common form of pipeline deterioration and should be considered in both the strength and serviceability analysis of pipes.

The study in this research focuses on concrete pipes in sewage systems (concrete sewers). This research firstly investigates how to involve the effect of corrosion as a time dependent process of deterioration in the structural and failure analysis of this type of pipe. Then three probabilistic time dependent reliability analysis methods including the first passage probability theory, the gamma distributed degradation model and the Monte Carlo simulation technique are discussed and developed. Sensitivity analysis indexes which can be used to identify the most important parameters that affect pipe failure are also discussed.

The reliability analysis methods developed in this paper contribute as rational tools for decision makers with regard to the strengthening and rehabilitation of existing pipelines. The results can be used to obtain a cost-effective strategy for the management of the sewer system.

Item Type: Conference or Conference Paper (Paper)
Additional Information: [1] This paper was presented at ICACE 2014: International Conference on Advances in Civil Engineering held from 19-20 June 2014 in Venice, Italy. It was given on 20 June 2014 within Session II.
Uncontrolled Keywords: reliability analysis, service life prediction, concrete sewers, Monte Carlo simulation method, first passage probability theory, gamma distributed degradation model
Subjects: Q Science > QA Mathematics > QA76 Computer software
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TD Environmental technology. Sanitary engineering
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > Department of Engineering Science
Related URLs:
Last Modified: 07 Aug 2018 10:16
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/11437

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