Effect of Bending and Straightening to the Strength of Reinforcement Steel Bar

  • Kana Sabatul Ikhwan Mechanical Engineering, Universitas Riau, Indonesia
  • M. Dalil Mechanical Engineering, Universitas Riau, Indonesia
DOI: http://dx.doi.org/10.36842/jomase.v15i1.463

Abstract

One of reinforcement bar treatment during delivery transportation is to bend up or buckle in the middle of the bar. This treatment will undermine the strength of the reinforcement bar on buckle region due to its mechanical properties have been changed and no longer within specification. An important point of this study is to knowing the rate of change of mechanical properties, especially strength. Concrete reinforcing steels are bent with nine variations of the bending angle starting from the angle (a) of 20°, 40°, 60°, 80°, 100°, 120°, 140°  160°, and 180°. The data obtained indicated that the yield strength and ultimate tensile strength increases and decreasing the ductility. The increasing percentage of the yield strength is 14% and the tensile strength is 7%. The maximum decreased elongation is 13.42% (a = 180º) from 24.67% (a = 0º) and the reduction of area is decreasing 1.93 %.

##Keywords:## Bending; Steel Structures; Mechanical Properties.
Published
Jan 20, 2015
How to Cite
IKHWAN, Kana Sabatul; DALIL, M.. Effect of Bending and Straightening to the Strength of Reinforcement Steel Bar. Journal of Ocean, Mechanical and Aerospace -science and engineering-, [S.l.], v. 15, n. 1, p. 12-17, jan. 2015. ISSN 2527-6085. Available at: <https://isomase.org/Journals/index.php/jomase/article/view/463>. Date accessed: 09 may 2026. doi: http://dx.doi.org/10.36842/jomase.v15i1.463.
Citation Formats
Issue
Vol 15 No 1 (2015): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Section
Articles

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