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AuthorSamman, Tamim A.
AuthorRadain, Talal A.
Available date2009-11-25T13:07:14Z
Publication Date1993
Publication NameEngineering Journal of Qatar University
CitationEngineering Journal of Qatar University, 1993, Vol. 6, Pages 115-134.
URIhttp://hdl.handle.net/10576/8021
AbstractTwenty high-strength plain concrete deep beams were tested under torsion. The variables were concrete strength and depth/width (aspect) ratio. Concrete strengths of 51.01, 58.53, 76.60 and 83.66 MPa and depth/width (aspect) ratios varying from 1 to 5 were used. The tested beams failed suddenly and violently along a smooth surface. The crack inclinations on the beam surfaces were influenced by the concrete strength and aspect ratio. Test results show that by increasing the concrete strength or by reducing the aspect ratio, the torsional capacity and the beam stiffness increases while the angle of twist decreases. A modification has been suggested to the strength equation of the ACI Code 318-89 for normal-strength concrete shallow beams under torsion to include the effect of high-strength concrete for deep beams. The proposed equation gave .a. good estimate of the experimental torsional strength.
Languageen
PublisherQatar University
SubjectEngineering: Research & Technology
TitleEffect Of Aspect Ratio On Torsional Capacity Of High-Strength Plain Concrete Deep Beams
TypeArticle
Pagination115-134
Volume Number6


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