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An optimum strategy for FRP-strengthening of corrosion-affected reinforced concrete columns

conference contribution
posted on 30.10.2019, 00:00 authored by Hassan BajiHassan Baji, CQ Li, F Chen, W Yang
In order to ensure safety of deteriorated reinforced concrete (RC) structures, an effective rehabilitation plan is essential. Although considerable research on strengthening of RC structures using Fiber Reinforced Polymers (FRP) composites has been undertaken, prediction of optimum strengthening time has not adequately been studied. This paper presents a methodology for optimal strengthening of corrosion-affected RC columns. An optimization problem based on minimization of total cost is formulated, from which optimum strengthening time and number of required FRP layers can be obtained. The results from a worked example show that an optimum solution to the formulated strengthening problem exists, and it is sensitive to the corrosion rate and cost of failure to cost of strengthening ratio. The proposed approach is useful in the development of an effective strengthening schedule for existing corrosion-affected RC columns, and could benefit the asset managers and structural practitioner. © 2019 Taylor & Francis Group, London.

Funding

Category 1 - Australian Competitive Grants (this includes ARC, NHMRC)

History

Editor

Caspeele R; Taerwe L; Frangopol DM

Parent Title

Life Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision: Proceedings of the Sixth International Symposium on Life-Cycle Civil Engineering

Start Page

2315

End Page

2322

Number of Pages

8

Start Date

28/10/2018

Finish Date

31/10/2018

ISBN-13

9781138626331

Location

Ghent, Belgium

Publisher

CRC Press/Balkema

Place of Publication

Leiden, The Netherlands

Peer Reviewed

Yes

Open Access

No

Era Eligible

Yes

Name of Conference

Sixth International Symposium on Life-Cycle Civil Engineering (IALCCE 2018)