scholarly journals Enhancement of lateral in-plane capacity of partially grouted concrete masonry shear walls

2016 ◽  
Vol 108 ◽  
pp. 59-76 ◽  
Author(s):  
M. Bolhassani ◽  
AA. Hamid ◽  
FL. Moon
Keyword(s):  
Shear Walls ◽  
Concrete Masonry

Behavior of fully grouted reinforced concrete masonry shear walls failing in flexure: Analysis

2009 ◽  
Vol 31 (9) ◽  
pp. 2032-2044 ◽  
Author(s):  
Marwan T. Shedid ◽  
Wael W. El-Dakhakhni ◽  
Robert G. Drysdale
Keyword(s):  
Reinforced Concrete ◽  
Shear Walls ◽  
Concrete Masonry

Seismic Performance of Cantilever-Reinforced Concrete Masonry Shear Walls

2014 ◽  
Vol 140 (9) ◽  
pp. 04014051 ◽  
Author(s):  
Farhad Ahmadi ◽  
Jaime Hernandez ◽  
Jacob Sherman ◽  
Christina Kapoi ◽  
Richard E. Klingner ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Seismic Performance ◽  
Shear Walls ◽  
Concrete Masonry

Effects of in-plane loading on the out-of-plane stability of slender reinforced concrete masonry shear walls

2016 ◽  
pp. 1847-1856 ◽  
Author(s):  
B.R. Robazza ◽  
T.Y. Yang ◽  
K.J. Elwood ◽  
D.L. Anderson ◽  
S. Brzev ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Shear Walls ◽  
Concrete Masonry ◽  
Out Of Plane

scholarly journals The Effect of the Amount, Distribution and End Anchorage Conditions of Bond Beam Reinforcement on the Behaviour of Concrete Masonry Shear Walls

2020 ◽  
Author(s):  
Samira Rizaee ◽  
Shelley S Lissel ◽  
Nigel G. Shrive
Keyword(s):  
Boundary Conditions ◽  
Axial Stress ◽  
Shear Walls ◽  
Reinforcement Ratio ◽  
Lateral Loading ◽  
Dissipated Energy ◽  
Shear Design ◽  
Concrete Masonry ◽  
Fixed End ◽  
Critical Locations

The behaviour of square 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 the smaller bar size increased yielding at critical locations on the rebars. The highest course of the wall should be reinforced and grouted as it 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.

scholarly journals Cyclic loading tests of slender concrete masonry shear walls

1982 ◽  
Vol 15 (1) ◽  
pp. 3-21
Author(s):  
M. J. N. Priestley ◽  
D. McG Elder
Keyword(s):  
Plastic Hinge ◽  
Shear Walls ◽  
Seismic Loading ◽  
Load Level ◽  
Compression Strain ◽  
Concrete Masonry ◽  
Theoretical Predictions ◽  
Loading Tests ◽  
Cyclic Loading Tests ◽  
Design Construction

The design, construction and testing of three slender concrete masonry shear walls is reported. The three walls, modelling 190 mm thick blockwork walls of four to five stories height to a scale of 1:0.737 were subjected
to cyclic reversals of in-plane displacements at gradually increasing ductility factors, simulating the effects of seismic loading. Variables between walls included axial load level, and whether or not confining plates were placed in the mortar beds in the compression zones of the potential plastic hinge region. All walls were constructed by conventional methods, and included lapped starter bars within the plastic hinge. Results indicated that the unconfined walls suffered strength degradation at levels of ductility lower than those required by current ductile design practice. This was particularly the case for the wall with heavy axial> loading, and confirmed theoretical predictions of available ductility based
on a limiting ultimate compression strain of 0.25%. Response of the
confined wall exhibited greatly improved behaviour compared with an
otherwise identical unconfined wall. In all walls behaviour was significantly, and adversely, affected by the lapping of flexural steel at the wall base.

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