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REHABILITATION OF HIGH STRENGTH REINFORCED CONCRETE CORBELS USING BASALT FIBER FABRIC

Year 2017, Volume: 2 Issue: 3, 0 - 0, 01.08.2017

Adnan Hazem Alshawaf Mehmet Eren Gülşan

Abstract

This paper presents an experimental study on the mechanical behavior of damaged reinforced concrete corbels rehabilitated by Basalt Fiber Fabric (BFF). The main research aim of the study is to investigate the effectiveness of basalt fiber fabric on rehabilitation of reinforced concrete corbels, which were damaged because of elevated temperatures and overloading, by examining load restoring capacity and ductility. Totally nine corbels that had been damaged before were selected for the study. The initial failure of the corbels had been because of overloading after heating them to several temperature levels (250oC, 500oC, and 750oC). These corbels had been produced from high strength self-compacting concrete with one concrete class (80 MPa) and three different amounts of steel fiber ratios (0%, 0.5%, 1%). However, shear span value for all corbels is same (90 mm). Experimental results show that use of basalt fiber fabric on damaged corbels increases the load carrying capacity and ductility significantly as compared to the corresponding values of corbels before initial failure. Besides, the stiffness of the corbels after rehabilitation is same with the stiffness of them before initial failure. Moreover, all of the rehabilitated corbels failed because of de-bonding failure mode and no visible damage was observed on the fabric

Keywords

corbels high strength concrete rehabilitation basalt fiber fabric epoxy

References

  • Ahmad, S., Elahi, A., Kundi, S., & Haq, W. (2013). Investigation of shear behavior of Corbel beams strengthened with CFRP. Life Science Journal, 10(12s). article.
  • Corry, R. W., & Dolan, C. W. (2001). Strengthening and repair of a column bracket using a carbon fiber reinforced polymer (CFRP) fabric. PCI Journal, 46(1).
  • Czigány, T., Vad, J., & Pölöskei, K. (2005). Basalt fiber as a reinforcement of polymer composites. Periodica Polytechnica. Engineering. Mechanical Engineering, 49(1), 3.
  • Elgwady, M. A., Rabié, M., & Mostafa, M. T. (2005). Strengthening of corbels using CFRP an experimental program. Cairo University, Giza, Egypt.
  • Erfan, A. M., Abdel-Rahman, G. T., Nassif, M. K., & Hammad, Y. H. (2010). Behavior of reinforced concrete corbels strengthened with CFRP fabrics. Benha University. article.
  • Foster, S. J., & Malik, A. R. (2002). Evaluation of efficiency factor models used in strut-and-tie modeling of nonflexural members. Journal of Structural Engineering, 128(5), 569–577.
  • Foster, S. J., Powell, R. E., & Selim, H. S. (1996). Performance of high-strength concrete corbels. ACI Structural Journal, 93(5), 555–563.
  • Hwang, S.-J., & Lee, H.-J. (2002). Strength prediction for discontinuity regions by softened strut-and-tie model. Journal of Structural Engineering, 128(12), 1519– 1526.
  • Ivanova, I., & Assih, J. (2015). EXPERIMENTAL STUDY OF LOCAL BEHAVIOR OF STRENGTHENED REINFORCED CONCRETE SHORT CORBEL BY BONDING CARBON FIBER FABRICS. article.
  • Ivanova, I., & Assih, J. (2015). Static and dynamic experimental study of strengthened inforced short concrete corbel by using carbon fabrics, crack path in shear zone. Frattura Ed Integrita Strutturale, (34). article.
  • Ivanova, I., Assih, J., & Dontchev, D. (2016). Mechanical Pathologies of Reinforced and Damaged Concrete Corbels by Gluing Composite Carbon Fabrics Under Static and Dynamic Tests. In Sustainable Construction (pp. 185–211). incollection, Springer.
  • Kumar, R. A., Selvamony, C., Seeni, A., & Sethuraman, T. R. (2015). Retrofitting Of RCC Piles By Using Basalt Fiber Reinforced Polymer (BFRP) Composite, Part: 1 Review Papers On RCC Structures And Piles Retrofitting Works. International Journal of Technology Enhancements and Emerging Engineering Research, 4(1), 103–115. article.
  • Liu, Q., Shaw, M. T., Parnas, R. S., & McDonnell, A.-M. (2006). Investigation of basalt fiber composite mechanical properties for applications in transportation. Polymer Composites, 27(1), 41–48.
  • Russo, G., Venir, R., Pauletta, M., & Somma, G. (2006). Reinforced concrete corbels-shear strength model and design formula. ACI Structural Journal, 103(1), 3.
  • Toumi, B., Resheidat, M., Guemmadi, Z., & Chabil, H. (2009). Coupled Effect of High Temperature and Heating Time on the Residual Strength of Normal and High-Strength Concretes. Jordan Journal of Civil Engineering, 3(4), 322–330.
  • Yong, Y.-K., & Balaguru, P. (1994). Behavior of reinforced high-strength-concrete corbels. Journal of Structural Engineering, 120(4), 1182–1201.

Year 2017, Volume: 2 Issue: 3, 0 - 0, 01.08.2017

Adnan Hazem Alshawaf Mehmet Eren Gülşan

Abstract

References

  • Ahmad, S., Elahi, A., Kundi, S., & Haq, W. (2013). Investigation of shear behavior of Corbel beams strengthened with CFRP. Life Science Journal, 10(12s). article.
  • Corry, R. W., & Dolan, C. W. (2001). Strengthening and repair of a column bracket using a carbon fiber reinforced polymer (CFRP) fabric. PCI Journal, 46(1).
  • Czigány, T., Vad, J., & Pölöskei, K. (2005). Basalt fiber as a reinforcement of polymer composites. Periodica Polytechnica. Engineering. Mechanical Engineering, 49(1), 3.
  • Elgwady, M. A., Rabié, M., & Mostafa, M. T. (2005). Strengthening of corbels using CFRP an experimental program. Cairo University, Giza, Egypt.
  • Erfan, A. M., Abdel-Rahman, G. T., Nassif, M. K., & Hammad, Y. H. (2010). Behavior of reinforced concrete corbels strengthened with CFRP fabrics. Benha University. article.
  • Foster, S. J., & Malik, A. R. (2002). Evaluation of efficiency factor models used in strut-and-tie modeling of nonflexural members. Journal of Structural Engineering, 128(5), 569–577.
  • Foster, S. J., Powell, R. E., & Selim, H. S. (1996). Performance of high-strength concrete corbels. ACI Structural Journal, 93(5), 555–563.
  • Hwang, S.-J., & Lee, H.-J. (2002). Strength prediction for discontinuity regions by softened strut-and-tie model. Journal of Structural Engineering, 128(12), 1519– 1526.
  • Ivanova, I., & Assih, J. (2015). EXPERIMENTAL STUDY OF LOCAL BEHAVIOR OF STRENGTHENED REINFORCED CONCRETE SHORT CORBEL BY BONDING CARBON FIBER FABRICS. article.
  • Ivanova, I., & Assih, J. (2015). Static and dynamic experimental study of strengthened inforced short concrete corbel by using carbon fabrics, crack path in shear zone. Frattura Ed Integrita Strutturale, (34). article.
  • Ivanova, I., Assih, J., & Dontchev, D. (2016). Mechanical Pathologies of Reinforced and Damaged Concrete Corbels by Gluing Composite Carbon Fabrics Under Static and Dynamic Tests. In Sustainable Construction (pp. 185–211). incollection, Springer.
  • Kumar, R. A., Selvamony, C., Seeni, A., & Sethuraman, T. R. (2015). Retrofitting Of RCC Piles By Using Basalt Fiber Reinforced Polymer (BFRP) Composite, Part: 1 Review Papers On RCC Structures And Piles Retrofitting Works. International Journal of Technology Enhancements and Emerging Engineering Research, 4(1), 103–115. article.
  • Liu, Q., Shaw, M. T., Parnas, R. S., & McDonnell, A.-M. (2006). Investigation of basalt fiber composite mechanical properties for applications in transportation. Polymer Composites, 27(1), 41–48.
  • Russo, G., Venir, R., Pauletta, M., & Somma, G. (2006). Reinforced concrete corbels-shear strength model and design formula. ACI Structural Journal, 103(1), 3.
  • Toumi, B., Resheidat, M., Guemmadi, Z., & Chabil, H. (2009). Coupled Effect of High Temperature and Heating Time on the Residual Strength of Normal and High-Strength Concretes. Jordan Journal of Civil Engineering, 3(4), 322–330.
  • Yong, Y.-K., & Balaguru, P. (1994). Behavior of reinforced high-strength-concrete corbels. Journal of Structural Engineering, 120(4), 1182–1201.
There are 16 citations in total.

Details

Primary Language English
Journal Section Research Article
Authors

Adnan Hazem Alshawaf This is me

Mehmet Eren Gülşan This is me

Publication Date August 1, 2017
Published in Issue Year 2017 Volume: 2 Issue: 3

Cite

APA Alshawaf, A. H., & Gülşan, M. E. (2017). REHABILITATION OF HIGH STRENGTH REINFORCED CONCRETE CORBELS USING BASALT FIBER FABRIC. The International Journal of Energy and Engineering Sciences, 2(3).

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