Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
권호 표지
DOI QR코드

DOI QR Code

Shear Behavior Investigation of Biaxial Hollow Slabs Through Non-linear FE Analysis

비선형유한요소해석을 통한 이방향 중공슬래브의 전단거동분석

  • Received : 2016.05.26
  • Accepted : 2016.12.07
  • Published : 2016.12.30
⟨ Previous Next ⟩

Abstract

Recently, biaxial hollow slab system is widely used since it can reduce self-weight of RC slabs. In order to reduce self-weight of slabs, biaxial hollow slabs have void hollow spheres within the webs of the slabs which do not mainly contribute to the flexural behavior of the slabs in ultimate state. However, the partial absence of webs reduces the shear strength of the slabs. Therefore, it is necessary to reasonably understand the shear performance of the biaxial hollow slabs. In this study, the shear behavior of biaxial hollow slabs was analyzed using nonlinear FEM according to various design parameters such as concrete strength, reinforcement ratio, the diameter and spacing of void spheres, and shear span to depth ratio. The existing shear strength models were evaluated to investigate their applicability to the shear strength prediction of biaxial hollow slab system and the strain-based shear strength model was modified to estimate the shear strength of biaxial hollow slab system.

Keywords

Acknowledgement

Supported by : 충북대학교, 한국연구재단

References

  1. ACI Committe 318. (2008) Building Code Requirement for Structural concrete (ACI318-13) and Commentary (ACI318R-13).
  2. Aldejohann. M., Schnellenbach-Held. M. (2005) Biaxial hollow slabs, Theory and tests, Betonwerk + fertigteil - technik, Vol.71, pp.50-59.
  3. BubbleDeck tests and Reports Summary. (2006) Issue 1.
  4. Choi. J.H., Jung. K.H, Kim. T.K., Lee. S.W., & Kim. J.H. (2014) Analysis Evaluation of Torsional Behavior of Hybrid Truss Bridge according to Connection Systems, KCI Structural Journal, Vol.26, No.1, PP.3-12.
  5. Choi. K.K., Park. H.G., & Wight. J.K. (2007) Unified Shear Strength model for Reinforced Concrete Beams - Part I: Development, ACI Structural Journal, Vol.104, No.2, PP.142-152.
  6. Choi. K.K., & Park. H.G. (2007) Unified Shear Strength model for Reinforced Concrete Beams - Part II: Verification and Simplified method, ACI Structural Journal, vol.104, No.2, PP.153-161.
  7. Chung. J.H., Lee. S.C., Choi. C.S., & Choi. H.K.(2012) One-Way Shear Strength of Donut Type Biaxial Hollow Slab Considered Hollow shapes and Materials, KCI journal, Vol.24, No.4, pp.391-398.
  8. Chung. J.H., Choi. H.K., Lee. S.C., & Choi. C.S.(2014) Flexural Strength and Stiffness of Biaxial Hollow Slab with Donut Type Hollow Sphere, AIK Journal, Vol.30, No.5, PP.3-11.
  9. Eom. T.S., Hwang. I.H., & Park. T.W. (2015) Evaluation of shear strength of Non-prestressed Reinforced Concrete Hollow-Core slab, KOSHAM Journal, Vol.15, No.6, PP.43-54.
  10. Han, J.H., Kim, S.D., Kim, S.M., & Ju, Y.K. (2011) Evaluation of shear Behaviour of void slabs with Deck, KOSHAM journal, Vol.11, No.4, pp.1-7
  11. Kim. J.S., & Shin. J.H. (2009) Mechanical Properties of Concrete with Statistical Variations, KCI Structural Journal, Vol.21, No.6, PP.789-796.
  12. Kim. S.M., Jang. T.Y., & Kim. S.S.(2009) Structural performance Tests of Two-way Void slabs, AIK journal, Vol.25, No.8, pp.35-42.
  13. Lee. J.H. (2015) Prestressed Concrete, Dong Myeong Publishers, pp. 85-86.
  14. Lim. J.J., Cho. S.H., Park. I.K., Youn. S.H., & Eom. T.S. (2013) Evaluation of vertical and horizontal shear strength of void slab, KCI journal, Vol.25, No.2, pp.459-460.
  15. Midas Information Technology Co., Ltd. (2008), Midas user's manual, Analysis and Algorithm, Korea.
  16. Park, H.G., & Klingner, R.E. (1997), Nonlinear Analysis of RC Members using Plasticity with Multiple Failure Criteria, ASCE Journal, Vol.123 No.5, May 1997, pp. 543-651.
  17. Park. H.G., Choi. K.K., & Wight. J.K. (2006) Strain-Based Shear strength model for slender Baems without Web Reinforcement, ACI Structural, Vol.103, No.6, pp. 783-793.
  18. Thorenfeldt. E., Tomaszewicz. A., & Jenson. J.J. (1987) Mechanical Properties of High-Strength Concrete and Applications in Design, In Proc. Symp. Utilization of High-Strength Concrete, Tapir.
  19. Vecchio, F.J.(1981) The response of reinforced concrete to in-plane shear and normal stresses, Phd thests, UNiv. of .Toronto. Ont., Canada.
  20. Vecchio, F.J., & Collins. M.P. (1986) The Modified Compression Field Theory for Reinforced Concrete Elements Subjected Shear, ACI Journal, Vol.83 No.22, pp. 219-231.
  21. Zsutty, T.C. (1968), Beam Shear Strength prediction by Analysis of Existing Data, ACI journal, Proceeding Vol.65, No.11, Nov.

Cited by

  1. Two-way Shear Strength Evaluation of Transfer Slab-Column Connections Through Nonlinear FE Analysis vol.31, pp.6, 2018, https://doi.org/10.7734/COSEIK.2018.31.6.315