Reliability analysis of corroded reinforced concrete beam with regards to anchorage failure
Paper i proceeding, 2019

Reinforcement corrosion is a common problem in reinforced concrete infrastructure today, and it is expected to increase in the future. To simply replace the corroded structures with new ones requires large resources, both in financial and environmental terms. Therefore it is important that existing structures are used to their full potential, also after the onset of corrosion. This paper presents a reliability study of the anchorage capacity of a reinforced concrete beam including reinforcement corrosion. The sensitivity of the different input parameters is also studied. As expected, the results show that the reliability is reduced with corrosion; the magnitude depends to a large extent on the modelling uncertainty used for the bond model for corroded reinforcement. The sensitivity analysis shows an influence of corrosion also on the sensitivities of the input parameters, which is expected based on the properties of the underlying bond model. This paper demonstrates that probabilistic evaluations give valuable insight of the reliability, which can be used to prolong the service-life of existing infrastructure and save both money and the environment.

Concrete beams and girders

Electrochemical corrosion

Författare

Mattias Blomfors

RISE Research Institutes of Sweden

Chalmers, Arkitektur och samhällsbyggnadsteknik, Konstruktionsteknik

Daniel Honfi

RISE Research Institutes of Sweden

O. Ivanov

Lunds universitet

Kamyab Zandi

Chalmers, Arkitektur och samhällsbyggnadsteknik, Konstruktionsteknik

Karin Lundgren

Chalmers, Arkitektur och samhällsbyggnadsteknik, Konstruktionsteknik

Life-Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision - Proceedings of the 6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018

337-344

6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018
Ghent, Belgium,

Ämneskategorier

Transportteknik och logistik

Annan samhällsbyggnadsteknik

Husbyggnad

Mer information

Senast uppdaterat

2019-04-29