Effect of Anchorage Length on the Shear Capacity of High Strength Concrete Deep Beams

Gatea A, Maytham Khalid; A.M.Jawad B, Dr. David

doi:10.37649/aengs.2021.171197

	Effect of Anchorage Length on the Shear Capacity of High Strength Concrete Deep Beams
Anbar Journal of Engineering Sciences
Article 5, Volume 12, Issue 1, 2021, Pages 47-56 PDF (3 M)
Document Type: Research Paper
DOI: 10.37649/aengs.2021.171197
Authors
Maytham Khalid Gatea a¹; Dr. David A.M.Jawad b²
¹Department of Civil Engineering, College of Engineering, University of Basrah, Al-Basrah, 61004, Iraq (PhD candidate University of Basrah)
²Department of Civil Engineering, College of Engineering, University of Basrah, Al-Basrah, 61004, Iraq (Asst. Professor University of Basrah)
Abstract
Ten simply supported deep beams with high strength concrete (C55 MPa) have been casted and subjected to a four-point loading test. Different parameters were examined for their influence on specimen behavior. These parameters were the shear span to overall depth ratio (a/h), the overall depth of deep beams (h), and additional anchorage length beyond the centerline of support (la). The experimental results show that the beam capacity decreases as the shear span to the overall depth ratio increases, and the overall depth and embedment length decrease. The major effect of anchorage length on the shear strength is studied. Different failure modes were observed which do not match strut-and-tie failure modes. The shear compression and anchorage failures were con-trolled in the high compressive concrete deep beams due to bottom steel yielding. Finally, the ex-perimental test results are compared with predictions of the strut-and-tie method according to the ACI 318-14 and a good agreement was found.
Keywords
Anchorage Length; Shear Capaci-ty; High Strength Concrete; Deep Beam

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