Structural Engineering and Mechanics

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Crack-controlled design methods of RC beams for ensuring serviceability and reparability

  • Chiu, Chien-Kuo (Department of Civil and Construction Engineering, National Taiwan University of Science and Technology) ;
  • Saputra, Jodie (Department of Civil and Construction Engineering, National Taiwan University of Science and Technology) ;
  • Putra, Muhammad Dachreza Tri Kurnia (Department of Civil and Construction Engineering, National Taiwan University of Science and Technology)
  • Received : 2021.06.12
  • Accepted : 2022.04.03
  • Published : 2022.06.25
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Abstract

For the design of flexural and shear crack control for reinforced concrete (RC) beams related to serviceability and reparability ensuring, eight simply-supported normal-strength reinforced concrete (NSRC) beam specimens are tested and the existing high-strength reinforced concrete (HSRC) experimental data are included in the investigation of this work. According to the investigation results of flexural and shear cracks, this works modifies the existing design formulas to determine the spacing of the tensile reinforcement for the flexural crack control of a HSRC/NSRC beam design. Additionally, for a specified shear crack width of 0.4 mm, the allowable stresses of the shear reinforcement are also identified. For the serviceability and reparability ensuring of HSRC/NSRC beams, this works proposes the relationship curves between the maximum flexural width and allowable stress of the tensile reinforcement, and the relationship curves between the shear crack width and allowable shear force that can be used to do the crack width control directly.

Keywords

Acknowledgement

The authors would like to thank the Ministry of Science and Technology of the Republic of China, Taiwan, for financially supporting this research under contract MOST 107-2221-E-011 -012 -MY3.

References

  1. ACI (2014), Building Code Requirements for Structural Concrete and Commentary (ACI 318-14), American Concrete Institute, Farmington Hills, MI, USA.
  2. ACI (2019), Building Code Requirements for Structural Concrete and Commentary (ACI 318-19), American Concrete Institute, Farmington Hills, MI, USA.
  3. ACI Committee 224 (2001), Control of Cracking of Concrete Structures (ACI 224R-01), Farmington Hills, MI, USA.
  4. AIJ (1999), Tekkin Konkurito zo Tatemono no Utsubo-sei Hosho-Gata Taishin Sekkei Shishin do Kaisetsu (Design Guidelines for Earthquake Resistant Reinforced Concrete Buildings Based on Inelastic Displacement Concept), Architectural Institute of Japan; Tokyo, Japan.
  5. AIJ (2010), Standard for Structural Calculation of Reinforced Concrete Structures, Architectural Institute of Japan, Tokyo, Japan.
  6. BSI (2004), Eurocode 2: Design of Concrete Structures, British Standards Institution, London, UK.
  7. Chiu, C.K., Chi, K.N. and Ho, B.T. (2018), "Experimental investigation on flexural crack control for high-strength reinforced-concrete beam members", Int. J. Concrete Struct. Mater., 12(1), 41. https://doi.org/10.1186/s40069-018-0253-8.
  8. Chiu, C.K., Chi, K.N. and Lin, F.C. (2014), "Experimental investigation on the shear crack development of shear-critical high-strength reinforced concrete beams", J. Adv. Concrete Technol., 12(7), 223-238. https://doi.org/10.3151/jact.12.223.
  9. Chiu, C.K., Sihotang, F.M.F. and Hao, D. (2015), "Crack-based damage assessment method for HSRC shear-critical beams and columns", Adv. Struct. Eng., 18(1), 119-135. https://doi.org/10.1260/1369-4332.18.1.119.
  10. Chiu, C.K., Ueda, T., Chi, K.N. and Chen, S.Q. (2016), "Shear crack control for high strength reinforced concrete beams considering the effect of shear-span to depth ratio of member", Int. J. Concrete Struct. Mater., 10(4), 407-424. https://doi.org/10.1007/s40069-016-0161-8.
  11. FIB (2010), fib Model Code for Concrete Structures, The International Federation for Structural Concrete, Paris, France.
  12. Frosch, R.J. (1999), "Another look at cracking and crack control in reinforced concrete", Struct. J., 96(3), 437-442. https://doi.org/10.14359/679.
  13. JSCE (2007), Standard Specifications for Concrete Structures-2007 ''Design'', Japan Society of Civil Engineers, Tokyo, Japan.
  14. Lee, J., Lee, D.H., Lee, J. and Choi, S. (2015), "Shear behavior and diagonal crack width for reinforced concrete beams with high-strength shear reinforcement", ACI Struct. J., 112(3), 323-334. http://doi.org/10.14359/51687422.
  15. NCREE (2019), Design Guideline for Building of High-Strength Reinforced Concrete Structures (Draft), National Center for Research on Earthquake Engineering, Taipei, Taiwan.
  16. Saputra, J. (2020), "Flexural and shear cracking control for reinforced concrete beams under monotonic and cyclic loading", Master Dissertation, National Taiwan University of Science and Technology, Taipei, Taiwan.
  17. Shimazaki, K. (2009), "Kyoyo sendan tairyoku o shihyo to shita sendan kurakku haba no hyoka", AIJ J. Technol. Des., 15(29), 139-142. (in Japanese) https://doi.org/10.3130/aijt.15.139.
  18. Silva, S.D., Mutsuyoshi, H. and Witchukreangkrai, E. (2008), "Evaluation of shear crack width in I-shaped prestressed reinforced concrete beams", J. Adv. Concrete Technol., 6(3), 443-458. https://doi.org/10.3151/jact.6.443.
  19. Soltani, A., Harries, K.A. and Shahrooz, B.M. (2013), "Crack opening behavior of concrete reinforced with high strength reinforcing steel", Int. J. Concrete Struct. Mater., 7(4), 253-264. https://doi.org/10.1007/s40069-013-0054-z.
  20. Zakaria, M., Ueda, T., Wu, Z. and Meng, L. (2009), "Experimental investigation on shear cracking behavior in reinforced concrete beams with shear reinforcement", J. Adv. Concrete Technol., 7(1), 79-96. https://doi.org/10.3151/jact.7.79.