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Beams of fibrous concrete in shear and bending: experiment and model
Luleå tekniska universitet.
2000 (English)In: Journal of Structural Engineering, ISSN 0733-9445, E-ISSN 1943-541X, Vol. 126, no 2, p. 243-251Article in journal (Refereed) Published
Abstract [en]

Beams of high-strength concrete (fcc up to 90 MPa) were tested in shear and bending. Various types of fiber (metallic and nonmetallic) were added to the concrete matrix to up to 1% per volume concrete. Also, four different beam depths were investigated. The efficiency of fibers depends on the governing load-carrying mechanisms, which may vary for different beam dimensions. The chosen steel fibers did not improve the capacity of the 250 mm deep beams as they did not for some of the 300 mm beams. They enhanced the toughness in the 500 mm beams, but were not enough for the 700 mm beams. Also, a fiber cocktail may prove more effective than using a single type of fiber. The chosen steel fibers are competitive with conventional stirrups, according to this study. A nonlinear truss model is devised to predict the load-carrying capacity of the beams. The model gave good predictions for beams without stirrups and depths up to 500 mm

Place, publisher, year, edition, pages
2000. Vol. 126, no 2, p. 243-251
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-5824DOI: 10.1061/(ASCE)0733-9445(2000)126:2(243)ISI: 000085025200012Scopus ID: 2-s2.0-0033718599Local ID: 402f5060-0a10-11dd-ae49-000ea68e967bOAI: oai:DiVA.org:ltu-5824DiVA, id: diva2:978700
Note
Validerad; 2000; 20080414 (cira)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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