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Two-way walls with cut-out openings strengthened by fiberreinforced polymers
Northern Research Institute - NORUT.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.ORCID iD: 0000-0002-8682-876X
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.
2016 (English)In: 19th IABSE Congress Strockholm 21-23 September 2016: Challenges in Design and Construction of an Innovative and Sustainable Built Environment / [ed] Lennart Elfgren, Johan Jonsson, Mats Karlsson, Lahja Rydberg-Forssbeck and Britt Sigfrid, CH - 8093 Zürich, Switzerland: International Association for Bridge and Structural Engineering, 2016, 1394-1400 p.Conference paper (Refereed)
Abstract [en]

In refurbishment projects structural modifications may be required such as the addition of new openings. These openings are a source of weakness and can reduce the structures' stiffness and load-bearing capacity. As a result repairing may be necessary to restore their initial performances. The paper presents results of an experimental program performed to investigate the effectiveness of FRP-based strengthening for restoring the axial capacity of a solid reinforced concrete wall after cutting door openings. Nine half scale concrete walls with and without cut-out openings subjected to a uniformly distributed axial load with a small eccentricity were tested to failure. Increases in axial strength, ductility, steel reinforcement and FRP strain utilization were measured and presented in this paper. The application of the FRP confinement increases the capacity and the stiffness of the specimens with cut-out openings. The axial strengths were between 85-94.8% and 56.5-63.4% for specimens having a small and large opening, respectively, of that of a solid wall.

Place, publisher, year, edition, pages
CH - 8093 Zürich, Switzerland: International Association for Bridge and Structural Engineering, 2016. 1394-1400 p.
Series
IABSE Congress Report
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-63543ScopusID: 2-s2.0-85018956428ISBN: 978-3-85748-144-4 (print)OAI: oai:DiVA.org:ltu-63543DiVA: diva2:1098783
Conference
19th IABSE Congress, Strockholm, 21-23 September 2016
Funder
EU, FP7, Seventh Framework Programme
Available from: 2017-05-26 Created: 2017-05-26 Last updated: 2017-05-26Bibliographically approved

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