Skip to main content
Article thumbnail
Location of Repository

Influence of section depth on the structural behaviour of reinforced concrete continuous deep beams

By Keun-Hyeok Yang and Ashraf F. Ashour


YesAlthough the depth of reinforced concrete deep beams is much higher than that of slender beams, extensive existing\ud tests on deep beams have focused on simply supported beams with a scaled depth below 600 mm. In the present\ud paper, test results of 12 two-span reinforced concrete deep beams are reported. The main parameters investigated\ud were the beam depth, which is varied from 400 mm to 720 mm, concrete compressive strength and shear span-tooverall\ud depth ratio. All beams had the same longitudinal top and bottom reinforcement and no web reinforcement to\ud assess the effect of changing the beam depth on the shear strength of such beams. All beams tested failed owing to\ud a significant diagonal crack connecting the edges of the load and intermediate support plates. The influence of\ud beam depth on shear strength was more pronounced on continuous deep beams than simple ones and on beams\ud having higher concrete compressive strength. A numerical technique based on the upper bound analysis of the\ud plasticity theory was developed to assess the load capacity of continuous deep beams. The influence of the beam\ud depth was covered by the effectiveness factor of concrete in compression to cater for size effect. Comparisons\ud between the total capacity from the proposed technique and that experimentally measured in the current investigation\ud and elsewhere show good agreement, even though the section depth of beams is varied

Topics: Reinforced Concrete, Continuous Beams, Structural Behaviour, Deep Beams, Beam Depth
Year: 2007
DOI identifier: 10.1680/macr.2007.59.8.575
OAI identifier:
Provided by: Bradford Scholars

Suggested articles


  1. (1993). Compression response of cracked reinforced concrete. doi
  2. (1984). Construction Industry Research and Information Association. CIRIA Guide 2. The Design of Deep Beams in Reinforced Concrete. Ove Arup and Partners.
  3. (1997). Diagonal cracking and shear strength of reinforced concrete beams. doi
  4. (1996). Effectiveness factor of concrete in continuous deep beams. doi
  5. (1998). Fracture and Size Effect in Concrete and Other Quasibrittle Materials.
  6. (2004). High strength concrete continuous deep beams–with web reinforcement and shear-span variations. doi
  7. High strength concrete continuous deep beams–with web reinforcement and shear-span variations. AdvancesinStructural Engineering,2004,7,No.3,229–243. doi
  8. (1999). Institute. Building Code Requirements for Structural Concrete (318–99) doi
  9. Institute. Building Code Requirements for Structural Concrete and Commentary doi
  10. (1984). Limit Analysis and Concrete Plasticity. PrenticeHall, Englewood Cliffs,
  11. (1991). Model for structural concrete members without transverse reinforcement. doi
  12. (1998). Reinforced concrete two-span continuous deep beams. doi
  13. (1993). Research on shear: a benefit to humanity or a waste of time? The Structural Engineer,
  14. (1999). Sensitivity of shear strength of reinforced concrete and prestressed concrete beams to shear friction and concrete softening according to modified compression field theory. doi
  15. (1999). Shear behavior of large reinforced concrete deep beams and code comparisons. doi
  16. (2003). Shear characteristics of high-strength concrete deep beams without shear reinforcement. Engineering Structures, doi
  17. (1972). Shear strength of large beams.
  18. (1993). Shear strength of reinforced concrete deep beams. doi
  19. (1984). Size effect in shear failure of longitudinally reinforced beams. doi
  20. (1994). Size effects in short beams loaded in shear. doi
  21. (1995). Softened concrete in biaxial tension–compression. doi
  22. (1991). Strain softening under biaxial tension and compression.
  23. (1997). Tests of reinforced concrete continuous deep beams. doi
  24. (1986). Tests of reinforced concrete deep beams. doi
  25. (1994). The numerical determination of shear failure mechanisms in reinforced concrete beams. The Structural Engineer,

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.