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Influence of concrete strength fractile estimation on the safety level of existing structures assessed using the Adjusted Partial Factor Method

 Influence of concrete strength fractile estimation on the safety level of existing structures assessed using the Adjusted Partial Factor Method
Author(s): ORCID,
Presented at IABSE Conference: Assessment, Upgrading and Refurbishment of Infrastructures, Rotterdam, The Netherlands, 6-8 May 2013, published in , pp. 222-223
DOI: 10.2749/222137813806481419
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In case of existing concrete structures, the estimation of the characteristic strength values from limited data is a difficult, but important task. There are currently different assessment methods ...
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Bibliographic Details

Author(s): ORCID

Medium: conference paper
Language(s): English
Conference: IABSE Conference: Assessment, Upgrading and Refurbishment of Infrastructures, Rotterdam, The Netherlands, 6-8 May 2013
Published in:
Page(s): 222-223 Total no. of pages: 8
Page(s): 222-223
Total no. of pages: 8
Year: 2013
DOI: 10.2749/222137813806481419
Abstract:

In case of existing concrete structures, the estimation of the characteristic strength values from limited data is a difficult, but important task. There are currently different assessment methods available, among which the classical coverage method, a Bayesian procedure with vague prior distributions (as mentioned in EN 1990) and the method described in EN 13791. With respect to the assessment of existing structures, the authors have developed and investigated an Adjusted Partial Factor Method, which is compatible with current Eurocodes, but additionally enables to incorporate alternative target reliability levels and reference periods and also additional information based on

e.g. on-site inspection data and data from testing. In this contribution the influence of the different fractile estimation methods on the safety level of concrete structures is investigated, considering the Adjusted Partial Factor Method. The performance of the different estimation methods are evaluated and compared using Monte Carlo simulations and FORM analyses.

Keywords:
concrete safety level assessment existing structures Partial Factors