Shear Performance of Steel Fibers Lightweight RC Deep Beams: Numerical and Analytical Study

  • S. Manharawy M
  • A. Mahmoud A
  • H. El-Diasity M
  • et al.
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Abstract

This paper aims to study numerically and analytically the effect of steel fibers on the behavior of reinforced lightweight concrete (RLWC) deep beams using strut and tie model (STM) and ANSYS program. The effect of nine parameters on the behavior: (1) effect of concrete compressive strength fcu; (2) effect of yield reinforcing steel strength fy; (3) effect of beam depth; (4) effect of beam width; (5) effect of shear span to depth ratio (a/d); (6) effect of main steel ratio; (7) effect of web reinforcement; (8) effect of fiber content and (9) effect of fiber aspect ratio are studied. The experimental results carried out by Manharawy [1] are verified using STM and ANSYS 15 computer program. The performance of RLWC deep beams was investigated in terms of: (1) cracking load; (2) cracking pattern; (3) ultimate load; (4) failure mode; (5) displacement ductility and (6) toughness. It is concluded that both the Egyptian code ECP-2017 [2] and ACI code 318-18 [3] are conservative in calculating the ultimate shear for RLWC deep beams.

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APA

S. Manharawy, M., A. Mahmoud, A., H. El-Diasity, M., & O. El-Mahdy, O. (2021). Shear Performance of Steel Fibers Lightweight RC Deep Beams: Numerical and Analytical Study. Engineering Research Journal - Faculty of Engineering (Shoubra), 50(1), 93–105. https://doi.org/10.21608/erjsh.2021.225714

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