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FRP strengthening of RC walls with openings
Technical University of Denmark.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
2009 (English)In: Advanced Composites in Construction (ACIC) 2009 Conference Proceedings / [ed] Sue Halliwell; Claire Whysall; Tim Stratford, ACIC , 2009, 202-213 p.Conference paper, Published paper (Refereed)
Abstract [en]

Strengthening reinforced concrete (RC) walls with openings using fibre reinforced polymers (FRP) has been proved experimentally to be a viable rehabilitation method. However, very few theoretical investigations are reported. In this paper two methods of analysis are presented. Since openings vary in size, the analysis of a strengthened wall can be divided into frame idealization method for large openings, and combined disk and frame analysis for smaller openings. The first method provides an easy to use tool in practical engineering, where the latter describes the principles of a ductile strengthening method, relying on dislocation of yield lines and creation of a new yield mechanism. The frame idealization method can be considered as a safe guideline for real strengthening projects based on commonly used principles. The principles in the latter are new and promising, and need experimental verification before use in strengthening projects.

Abstract [en]

Strengthening reinforced concrete (RC) walls with openings using fibre reinforced polymers (FRP) has been experimentally proven to be a viable rehabilitation method. However, very few theoretical investigations are reported. In this paper two methods of analysis are presented. Since openings vary in size, the analysis of a strengthened wall can be divided into frame idealization method for large openings, and combined disk and frame analysis for smaller openings. The first method provides an easy to use tool in practical engineering, where the latter describes the principles of a ductile strengthening method, relying on dislocation of yield lines and creation of a new yield mechanism. The frame idealization method can be considered as a safe guideline for real strengthening projects based on commonly used principles. The principles in the latter are new and promising, but need experimental verification before use in strengthening projects.

Place, publisher, year, edition, pages
ACIC , 2009. 202-213 p.
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-27366Local ID: 0cb42000-e8a6-11de-bae5-000ea68e967bOAI: oai:DiVA.org:ltu-27366DiVA: diva2:1000549
Conference
Conference on Advanced Composites in Construction : 01/09/2009 - 03/09/2009
Note
Godkänd; 2009; 20091214 (gabsas)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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Sas, GabrielTäljsten, Björn

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