Probabilistic Design for Deteriorating Reinforced Concrete Structures with Time-Variant Finite Element Analysis
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Bibliographic Details
| Author(s): |
Tsuyoshi Kouta
(Shimizu Corporation, Tokyo, Japan)
Christian Bucher (Vienna University of Technology, Vienna, Austria) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Towards a Resilient Built Environment Risk and Asset Management, Guimarães, Portugal, 27-29 March 2019 | ||||
| Published in: | IABSE Symposium Guimarães 2019 | ||||
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| Page(s): | 1261-1268 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/guimaraes.2019.1261 | ||||
| Abstract: |
In this study, a probabilistic design method using time-variant three-dimensional finite element (FE) analysis is presented to predict the structural reliability of deteriorating reinforced concrete (RC) structures due to chloride-induced corrosion. First, models of probabilistic corrosion due to chloride-induced corrosion are briefly reviewed. Then, FE modeling methods for corroded RC structures are presented, followed by validation with reference to experimental tests. In the methods, concrete and reinforcing steels are separately modeled, and the degradation in mechanical behavior of both components is considered. Finally, as an illustrative case study for the proposed FE analysis, the time-variant structural safety of a box-girder bridge is calculated over its lifetime of 50 yrs. The results of this study indicate that the proposed methods can be used to estimate the long-term structural safety of deteriorating RC structures. |
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| Keywords: |
finite element analysis FEA failure probability reinforced concrete structural reliability probabilistic design chloride-induced corrosion deteriorating
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