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Development of shear capacity equations for RC beams strengthened with UHPFRC

  • Mansour, Walid (Department of Civil Engineering, Kafrelsheikh University) ;
  • Sakr, Mohammed (Department of Structural Engineering, Tanta University) ;
  • Seleemah, Ayman (Department of Structural Engineering, Tanta University) ;
  • Tayeh, Bassam A. (Department of Civil Engineering, Faculty of Engineering, Islamic University of Gaza) ;
  • Khalifa, Tarek (Department of Structural Engineering, Tanta University)
  • 투고 : 2020.11.27
  • 심사 : 2021.04.15
  • 발행 : 2021.05.25

초록

The review of the literature and design guidelines indicates a lack of design codes governing the shear strength of reinforced concrete (RC) beams strengthened with ultrahigh-performance fiber-reinforced concrete (UHPFRC). This study uses the results of a 3D finite element model constructed previously by the authors and verified against an experimental programme to gain a clear understanding of the shear strength of RC beams strengthened with UHPFRC by using different schemes. Experimental results found in the literature along with the numerical results for shear capacities of normal-strength RC and UHPFRC beams without stirrups are compared with available code design guidelines and empirical models found in the literature. The results show variance between the empirical models and the experimental results. Accordingly, proposed equations derived based on empirical models found in the literature were set to estimate the shear capacity of normal-strength RC beams without stirrups. In addition, the term 'shear span-to-depth ratio' is not considered in the equations for design guidelines found in the literature regarding the shear capacity of UHPFRC beams without stirrups. Consequently, a formula estimating the shear strength of UHPFRC and RC beams strengthened with UHPFRC plates and considering the effect of shear span-to-depth ratio is proposed and validated against an experimental programme previously conducted by the authors.

키워드

참고문헌

  1. ACI (2005), Building Code Requirements for Reinforced Concrete (ACI 318-05) and Commentary (ACI 318R-05), Vol. 318-05.
  2. AFGC (2013), Betons Fibres aultras-hautes Performances. Association Francaise du Genil Civil.
  3. Al Hallaq, A., Tayeh, B.A. and Shihada, S. (2017), "Investigation of the bond strength between existing concrete substrate and UHPC as a repair material", Int. J. Eng. Adv. Technol. (IJEAT), 6(3).
  4. Albegmprli, H.M., Cevik, A., Gulsan, M.E. and Kurtoglu, A.E. (2015), "Reliability analysis of reinforced concrete haunched beams shear capacity based on stochastic nonlinear FE analysis", Comput. Concrete, 15(2), 259-277. http://doi.org/10.12989/cac.2015.15.2.259.
  5. Amin, M., Tayeh, B.A. and Agwa, I.S. (2020), "Effect of using mineral admixtures and ceramic wastes as coarse aggregates on properties of ultrahigh-performance concrete", J. Clean. Prod., 273, 123073. https://doi.org/10.1016/j.jclepro.2020.123073.
  6. Arezoumandi, M., Smith, A., Volz, J.S. and Khayat, K.H. (2014), "An experimental study on shear strength of reinforced concrete beams with 100% recycled concrete aggregate", Constr. Build. Mater., 53, 612-620. https://doi.org/10.1016/j.conbuildmat.2013.12.019.
  7. Askar, L.K., Tayeh, B.A. and Abu Bakar, B.H. (2012), "Effect of different curing conditions on the mechanical properties of UHPFC", Awam International Conference on Civil Engineering (AICCE'12) and Geohazard Information Zonation (GIZ'12), 4(3).
  8. Baharuddin, N.K., Nazri, F.M., Bakar, B.H.A., Beddu, S. and Tayeh, B.A. (2020), "Potential use of ultra high-performance fibre-reinforced concrete as a repair material for fire-damaged concrete in terms of bond strength", Int. J. Integ. Eng., 12(9), 87-95.
  9. Bazant, Z.P. and Kim, J.K. (1984), "Size effect in shear failure of longitudinally reinforced beams", ACI J., 81, 456-466.
  10. Bhal, N.S. (1968), "uber den Einfluss der Balkenhohe auf die Schubtragfagikeit von einfeldigen Stahlbetonbalken mit und ohne Schubbewehrung: Technische Hochschule", Ph.D. Thesis, Otto-Graf-Inst..
  11. Chana, P. (1981), "Some aspects of modelling the behaviour of reinforced concrete under shear loading", Technical Report 543, Cement and Concrete Association, Wexham Springs.
  12. Choi, W.C. and Yun, H.D. (2017), "Shear strength of reinforced recycled aggregate concrete beams without shear reinforcements", J. Civil Eng. Manage., 23(1), 76-84. http://doi.org/10.3846/13923730.2014.976257.
  13. CSA (2004), Design of Concrete Structures, Canadian Standards Association, Mississauga.
  14. Deng, Q., Yi, W.J. and Tang, F.J. (2017), "Effect of coarse aggregate size on shear behavior of beams without shear reinforcement", ACI Struct. J., 114(5), 1131-1142. http://doi.org/10.14359/51689720.
  15. Elzanaty, A.H., Nilson, A.H. and Slate, F.O. (1986), "Shear capacity of reinforced concrete beams using high-strength concrete", ACI J. Proc., 83, 290-296.
  16. Feldman, A. and Siess, C.P. (1955), "Effect of moment-shear ratio on diagonal tension cracking and strength in shear of reinforced concrete beams", Civil Engineering Studies, University of Illinois.
  17. Ferguson, P.M. (1956), "Some implications of recent diagonal tension tests", ACI J. Proc., 53, 157-172.
  18. Gonzalez-Fonteboa, B. and Martinez-Abella, F. (2007), "Shear strength of recycled concrete beams", Constr. Build. Mater., 21(4), 887-893. https://doi.org/10.1016/j.conbuildmat.2005.12.018.
  19. Guo, Y.H. and Wang, Z.Q. (2012), "Proposed calculation formula of shear connectors in UHPFRC-NSC composite structure", Appl. Mech. Mater., 166-169, 2851-2854. http://doi.org/10.4028/www.scientific.net/AMM.166-169.2851.
  20. Haido, J.H., Tayeh, B.A., Majeed, S.S. and Karpuzcu, M. (2021), "Effect of high temperature on the mechanical properties of basalt fibre self-compacting concrete as an overlay material", Constr. Build. Mater., 268, 121725. https://doi.org/10.1016/j.conbuildmat.2020.121725.
  21. Hallgren, M. (1994), "Flexural and shear capacity of reinforced high strength concrete beams without stirrups", KTH Royal Institute of Technology, TRITA-BKN, 9, 1-49.
  22. Hussein, L., Amleh, L., Siad, H. and Lachemi, M. (2018), "Effect of very severe sulfate environment on bonded composite concrete system", Constr. Build. Mater., 191, 752-763. https://doi.org/10.1016/j.conbuildmat.2018.10.051.
  23. Islam, M., Pam, H., Kwan, A. and Aayagi. (1998), "Shear capacity of high-strength concrete beams with their point of inflection within the shear span", Proc. Inst. Civil Eng.-Struct. Build., 128(1), 91-99. https://doi.org/10.1680/istbu.1998.30038.
  24. Jeong, C.Y., Kim, H.G., Kim, S.W., Lee, K.S. and Kim, K.H. (2016), "Size effect on shear strength of reinforced concrete beams with tension reinforcement ratio", Adv. Struct. Eng., 20(4), 582-594. https://doi.org/10.1177/1369433216658486.
  25. JSCE (2004), Recommendations for Design and Construction of Ultra-High Strength Fiber Reinforced Concrete Structures, Japan Society of Civil Engineers, Japan.
  26. Kodur, V., Solhmirzaei, R., Agrawal, A., Aziz, E.M. and Soroushian, P. (2018), "Analysis of flexural and shear resistance of ultra high performance fiber reinforced concrete beams without stirrups", Eng. Struct., 174, 873-884. https://doi.org/10.1016/j.engstruct.2018.08.010.
  27. Mansour, W. and Tayeh, B.A. (2020), "Shear behaviour of RC beams strengthened by various ultrahigh performance fibre-reinforced concrete systems", Adv. Civil Eng., 2020, Article ID 2139054. https://doi.org/10.1155/2020/2139054.
  28. Maraq, M.A.A., Tayeh, B.A., Ziara, M.M. and Alyousef, R. (2021), "Flexural behavior of RC beams strengthened with steel wire mesh and self-compacting concrete jacketing-experimental investigation and test results", J. Mater. Res. Technol., 10, 1002-1019. https://doi.org/10.1016/j.jmrt.2020.12.069.
  29. Meraji, L., Afshin, H. and Abedi, K. (2019), "Flexural behavior of RC beams retrofitted by ultra-high performance fiber-reinforced concrete", Comput. Concrete, 24(2), 159-172. http://doi.org/10.12989/cac.2019.24.2.159.
  30. Mohammed, A.N., Johari, M.A.M., Zeyad, A.M., Tayeh, B.A. and Yusuf, M.O. (2014), "Improving the engineering and fluid transport properties of ultra-high strength concrete utilizing ultrafine palm oil fuel ash", J. Adv. Concrete Technol., 12(4), 127-137. https://doi.org/10.3151/jact.12.127.
  31. Mostosi, S., Riva, P., Maringoni, S. and Meda, A. (2011), "Shear strengthening of RC beams with high performance jacket", The fib Symposium 2011, Prague.
  32. Narayanan, R. and Beeby, A. (2005), Designers' Guide to EN 1992-1-1 and EN 1992-1-2. Eurocode 2: Design of Concrete Structures: General Rules and Rules for Buildings and Structural Fire Design, Vol. 17, Thomas Telford.
  33. Niwa, J., Yamada, K., Yokozawa, K. and Okamura, H. (1986), "Revaluation of the equation for shear strength of reinforced concrete beams without web reinforcement", Doboku Gakkai Ronbunshu, 9(372), 167-176. https://doi.org/10.2208/JSCEJ.1986.372_167.
  34. Noshiravani, T. and Bruhwiler, E. (2013), "Experimental investigation on reinforced ultra-high-performance fiber-reinforced concrete composite beams subjected to combined bending and shear", ACI Struct. J., 110, 251-261.
  35. Okamura, H. and Higai, T. (1980), "Proposed design equation for shear strength of reinforced concrete beams without web reinforcement", Proc. JPN Soc. Civil Eng., 300, 131-141. https://doi.org/10.2208/jscej1969.1980.300_131.
  36. Rahal, K.N. (2006), "Shear behavior of reinforced concrete beams with variable thickness of concrete side cover", ACI Struct. J., 103(2), 171.
  37. Rigi, M.J. and Narmashiri, K. (2014), "Shear strengthening of steel beams using vertical and diagonal CFRP strips", Ind. J. Fund. Appl. Life Sci., 5, 3850-3856.
  38. Sakr, M.A., Sleemah, A.A., Khalifa, T.M. and Mansour, W.N. (2019), "Shear strengthening of reinforced concrete beams using prefabricated ultra-high performance fiber reinforced concrete plates: Experimental and numerical investigation", Struct. Concrete, 20(3), 1137-1153. https://doi.org/10.1002/suco.201800137.
  39. Tayeh, B.A., Aadi, A.S., Hilal, N.N., Bakar, B.A., Al-Tayeb, M.M. and Mansour, W.N. (2019b), "Properties of ultra-high-performance fiber-reinforced concrete (UHPFRC)-a review paper", AIP Conf. Proc., 2157(1), 020040. https://doi.org/10.1063/1.5126575.
  40. Tayeh, B.A., Abu Bakar, B.H., Megat Johari, M.A. and Ratnam, M.M. (2014a), "Existing concrete textures: their effect on adhesion with fibre concrete overlay", Proc. Inst. Civil Eng.- Struct. Build., 167(6), 355-368. https://doi.org/10.1680/stbu.12.00083
  41. Tayeh, B.A., Abu Bakar, B.H., Megat Johari, M.A. and Zeyad, A.M. (2014b), "Microstructural analysis of the adhesion mechanism between old concrete substrate and UHPFC", J. Adhes. Sci. Technol., 28(18), 1846-1864. https://doi.org/10.1080/01694243.2014.925386
  42. Tayeh, B.A., Bakar, B.A. and Johari, M.M. (2012), "Mechanical properties of old concrete-UHPFC interface", Concrete Repair, Rehabilitation and Retrofitting III: 3rd International Conference on Concrete Repair, Rehabilitation and Retrofitting, ICCRRR-3, Cape Town, South Africa, September.
  43. Tayeh, B.A., Bakar, B.A. and Johari, M.M. (2013), "Characterization of the interfacial bond between old concrete substrate and ultra high performance fiber concrete repair composite", Mater. Struct., 46(5), 743-753. https://doi.org/10.1617/s11527-012-9931-1.
  44. Tayeh, B.A., Maraq, M.A.A. and Ziara, M.M. (2020), "Flexural performance of reinforced concrete beams strengthened with self-compacting concrete jacketing and steel welded wire mesh", Struct., 28, 2146-2162. https://doi.org/10.1016/j.istruc.2020.10.035.
  45. Tayeh, B.A., Naja, M.A., Shihada, S. and Arafa, M. (2019a), "Repairing and strengthening of damaged RC columns using thin concrete jacketing", Adv. Civil Eng., 2019, Article ID 2987412. https://doi.org/10.1155/2019/2987412.
  46. Yildizel, S.A., Calis, G. and Tayeh, B.A. (2020), "Mechanical and durability properties of ground calcium carbonate-added roller-compacted concrete for pavement", J. Mater. Res. Technol., 9(6), 13341-13351. https://doi.org/10.1016/j.jmrt.2020.09.070
  47. Zhang, J., Dong, H., Cao, W., Yu, C. and Chi, Y. (2016). Shaking table tests of low-rise shear walls made of recycled aggregate concrete", Struct. Eng. Int., 26(1), 62-73. https://doi.org/10.2749/101686616X14480232444441.
  48. Zsutty, T. (1968), "Beam shear strength prediction by analysis of existing data", ACI J., 65, 943-951.
  49. Zsutty, T. (1971), "Shear strength prediction for separate catagories of simple beam tests", ACI J., 68, 138-143.

피인용 문헌

  1. Influence of substrate roughness and bonding agents on the bond strength between old and new concrete vol.12, pp.1, 2021, https://doi.org/10.12989/acc.2021.12.1.033