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Behavior of Reinforced Concrete Beams with effect of Stiffened Plates
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering. Al-Mustansiriyah University, Baghdad, Iraq..
University of Karbala, Karbala, Iraq.
University of Warith AL-Anbiya’a,Kerbala, Iraq.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.ORCID iD: 0000-0002-6790-2653
2019 (English)In: Civil Engineering Journal, ISSN 2676-6957, Vol. 5, no 12, p. 2569-2578Article in journal (Refereed) Published
Abstract [en]

This study presents experimental work including an investigation conducted on five simply supported reinforced concrete beams under pure torsion. First beam without strengthening as a control beam. The other four beams were strengthened externally by bolted thin steel plates. For this test the load was applied gradually. The torque was increased gradually up to failure of the beam.  The variables were the thickness and height of the steel plate that was externally connected to both sides  of the  rectangular  reinforced  concrete  beam.  The  test  results  for  the  beams  discussed  are  based  on  torque-twist behavior. The experimental results show that the attachment of thin steel plates by mechanical means to beams provides a considerable improvement in the torsional behavior of the reinforced concrete beams. Comparable to the reference beam, the maximum increase in the cracking and the ultimate torque of the composite beam was recorded for the reinforced concrete  beam  that  strengthen  by  steel  plate  of  150  mm  height,  2  mm  thickness  and  50  mm  spacing  between  shear connectors (B1). The results revealed that the cracking torque, ultimate torque, global stiffness of beam and beam ductility for all composite beams increase with the increase of the plate's thickness, plate's height.

Place, publisher, year, edition, pages
Iran: Salehan Institute of Higher Education , 2019. Vol. 5, no 12, p. 2569-2578
Keywords [en]
Torque, Reinforced Concrete, Steel Plate, Strengthening, Beams
National Category
Geotechnical Engineering
Research subject
Soil Mechanics; Soil Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-77147DOI: 10.28991/cej-2019-03091433OAI: oai:DiVA.org:ltu-77147DiVA, id: diva2:1377517
Note

Validerad;2020;Nivå 2;2019-12-16 (johcin)

Available from: 2019-12-12 Created: 2019-12-12 Last updated: 2019-12-16Bibliographically approved

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al Amli, Ali SabahAl-Ansari, Nadhir
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