In-plane cyclic loading of partially grouted masonry: a review and assessment of research needs

The literature on shear tests on partially grouted masonry is reviewed. Little is known about the effect of shear when the spacing of the vertical reinforcement is greater than 800mm. While the strut and tie approach gives good predictions of load capacity in partially grouted masonry with openings and closely spaced reinforcement, there appears to be no similar capability for widespaced, partially grouted masonry. Given the similarity in failure pattern in shear between masonry walls and concrete beams, an equilibrium approach is advocated for examining shear failure in masonry, and tests are suggested to help elucidate basic principles for the analysis of wide-spaced, partially grouted walls subject to in-plane lateral load.