Structural Monitoring and Maintenance

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Influence of dynamic loading induced by free fall ball on high-performance concrete slabs with different steel fiber contents

  • Al kulabi, Ahmed K. (Department of Civil Engineering, University of Kufa) ;
  • Al zahid, Ali A. (Department of Civil Engineering, University of Kufa)
  • Received : 2018.10.26
  • Accepted : 2019.02.07
  • Published : 2019.03.25
⟨ Previous Next ⟩

Abstract

One way to provide safe buildings and to protect tenants from the terrorist attacks that have been increasing in the world is to study the behavior of buildings members after being exposed to dynamic loads. Buildings behaviour after being exposed to attacks inspired researchers all around the world to investigate the effect of impact loads on buildings members like slabs and to deeply study the properties of High Performance Concrete. HPC is well-known in its high performance and resistance to dynamic loads when it is compared with normal weight concrete. Therefore, the aim of this paper is finding out the impact of dynamic loads on RPC slabs' flexural capacity, serviceability loads, and failure type. For that purpose and to get answers for these questions, three concrete slabs with 0.5, 1, and 2% steel fiber contents were experimentally tested. The tests results showed that the content of steel fiber plays the key role in specifying the static capacity of concrete slabs after being dynamically loaded, and increasing the content of steel fiber led to improving the static loading capacity, decreased the cracks numbers and widths at the same time, and provided a safer environment for the buildings residents.

Keywords

References

  1. Al-Jubory, N.H. (2013), "Mechanical properties of reactive powder concrete (RPC) with mineral admixture", Al-Rafadain Eng. J., 21, 92-101.
  2. AL Zahid, M.A.A. (2016), "Impact resistance of cambered reactive powder concrete slabs with steel stiffeners", PHD Eng. thesis, Babylon University, Babylon, Iraq.
  3. Aravind, M., Senthil, K.V. and Manikandan, G. (2017), "Flexural behavior of high strength reactive powder concrete", SSRG Int. J. Civil Eng., 350-354.
  4. Behbahani, H.P., Nematollahi, B. and Farasatpour, M. (2011), "Steel fiber reinforced concrete: a review", in ICSECM.
  5. Baarimah, A.O. and Mohsin, S.M.S. (2017), "Behaviour of reinforced concrete slabs with steel fibers", in IOP, 271-012099.
  6. Chen, J.J., Ng, P.L., Li, L.G. and Kwan, A.K.H. (2017), "Modern building materials, structures and technologies, MBMST 2016", 172, 165-171.
  7. Dahake, A.G. and Charkha, K.S. (2016), "Effect of steel fibers on strength of concrete", J. Eng. Sci. Management Education, 9, 45-51.
  8. Jia, H., Yu, L. and Wu, G. (2014), "Damage assessment of two-way bending RC slabs subjected to blast loadings", Scientific World J., 2014, 1-12.
  9. Koccaz, Z., Sutcu, F. and Torunbalci, N. (2008), "Architectural and structural design for blast resistance buildings", Proceedings of the 14th WCEE, 12-17.
  10. Maroliya, M.K. and Modhera, C.D. (2010), "Influence of type of superplasticizers on workability and compressive strength of reactive powder concrete", Int. J. Adv. Eng. Technol., 1(2), 123-130.
  11. Patel, P.B., Thakur, L.S., Maroliya, M.K. and Patel, B.A. (2017) "Shear and impact behavior of reactive powder concrete with varying powder content", Kalpa publications in CE, Vol. 1, pp. 307-314. https://doi.org/10.29007/z5zx
  12. Rasol, M.A. (2015) "Effect of silica fume on concrete properties and advantages for Kurdistan region, Iraq", Int. J. Scientific Eng. Res., 6, 170-173.
  13. Singh, S. and Kundu, R. (2016), "Natural reactive powder concrete (Rpc) - in form of a superplasticized portland cement mixture with silica fume, steel fibers and ground fine quartz - a review", Int. J. Technical Res. (IJTR), 5, 217-222.
  14. Vinayagam, P. (2012), "Experimental investigation on high performance concrete using silica fume and superplasticizer", Int. J. Comput. Commun. Eng., 1, 168-171. https://doi.org/10.7763/IJCCE.2012.V1.44
  15. Wu, Z., Shi, C. and Wu, L. (2016), "Effects of steel fiber content and shape on mechanical properties of ultra-high performance concrete", Constr. Build. Mater., 3, 8-14. https://doi.org/10.1016/S0950-0618(89)80035-2