EFFECTS OF TENSILE REINFORCING STEEL RATIO AND NEAR-SURFACE-MOUNTED BAR DEVELOPMENT LENGTH ON THE STRUCTURAL BEHAVIOR OF STRENGTHENED RC BEAMS

Faculty Engineering Year: 2020
Type of Publication: ZU Hosted Pages:
Authors:
Selem Saleh Elsayed Ahmed Dawod
Journal: Latin American Journal of Solids and Structures قسم المواد كلية الهندسة جامعة الزقازيق Volume:
Keywords : EFFECTS , TENSILE REINFORCING STEEL RATIO , NEAR-SURFACE-MOUNTED    
Abstract:
The use of near-surface mounted (NSM) Glass fiber reinforced polymer (GFRP) bars is one of the most popular and effective techniques for strengthening reinforced concrete (RC) beams. This paper presents an experimental research program to study the flexural strengthening of RC beams comparing two areas of bottom tensile reinforcing steel and three development lengths of NSM GFRP bars. The beam test results indicated that the beam flexural strength increased up to 110% and 58% for the cases of low and high tensile reinforcing steel ratios, respectively. The effect of the tensile reinforcing steel area on the critical value of the development length of NSM GFRP bars was also investigated. It was found that decreasing the axial stiffness ratio, reduced the strengthening efficiency and the critical development length of the NSM GFRP bars. Finally, a 3D Finite Element (FE) model using ANSYS was constructed and was validated using the experimental results. Good agreement was seen between experimental and FE model results
    
     
 
       

Author Related Publications

  • Selem Saleh Elsayed Ahmed Dawod, "Mechanical properties of sustainable concrete comprising various wastes", Springer, 2023 More
  • Selem Saleh Elsayed Ahmed Dawod, "Mechanical behavior of concrete at different levels of compressive strength", Fourth International Conference On Civil And Architecture Engineering, 2002 More
  • Selem Saleh Elsayed Ahmed Dawod, "Correlation the effect of beam size and crack-depth ratio in concrete by using a modified stress intensity factor", Al-Mansoura Engineering International Conference, --- , Sharm Elsheikh, EGYP, 2003 More
  • Selem Saleh Elsayed Ahmed Dawod, "Mechanical behavior of high strength concrete reinforced by different types of fibers", Al-Azhar Engineering Seven International Conference, April 2003, Cairo, EGYPT., 2003 More
  • Selem Saleh Elsayed Ahmed Dawod, "Sulfate attack on concrete from mixing and curing water", Al-Azhar Engineering Seven International Conference, April 2003, Cairo, EGYPT., 2004 More

Department Related Publications

  • Ahmed Mohamed Hassan Ali Youssief, "Densification behavior and mechanical properties of niobium-oxide-doped alumina ceramics", Goller Verlag, 2013 More
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  • Selem Saleh Elsayed Ahmed Dawod, "Contribution of retardation mechanisms on the behaviour of fatigue crack growth in steel structures", 1st International Conference in Civil Engineering, Helwan University, Egypt, pp.172-182., 1998 More
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