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- Title
The effect of the amount, distribution, and end anchorage conditions of bond beam reinforcement on the behaviour of concrete masonry shear walls.
- Authors
Rizaee, Samira; Lissel, Shelley; Shrive, Nigel G.
- Abstract
The behaviour of squat shape partially grouted concrete masonry shear walls with fixed-end boundary conditions subjected to constant average axial stress and cyclic lateral loading was investigated. Two replicas were tested of each combination of horizontal reinforcement ratio (0.12%, 0.06%, and 0.03%) and four end anchorage conditions (straight, 90°, 180°, and shear studs). The behaviour of the walls was compared in terms of strength, ductility, stiffness, and dissipated energy. While the effect of horizontal bar size was greater than that of end anchorage, neither improved end anchorage nor smaller bar size increased yielding at critical locations on the rebars. The highest course of the wall should be reinforced and grouted, as that improves performance of the walls. In addition, the amount of horizontal reinforcement did not significantly affect the strength of the shear walls, therefore changes to the shear design equations in the Canadian Standard are recommended.
- Subjects
CONCRETE masonry; SHEAR walls; AXIAL stresses; ANCHORAGE; CYCLIC loads
- Publication
Canadian Journal of Civil Engineering, 2021, Vol 48, Issue 12, p1583
- ISSN
0315-1468
- Publication type
Article
- DOI
10.1139/cjce-2020-0260