M. H. MALEK and A. W. HENDRY
University of Edinburgh
The state of stress immediately under a concentrated load is one of biaxial compression, and as a result, the masonry can withstand a contact stress in excess of its uni-axial compressive strength. This paper summaries the results of tests on 296 wallettes in 102.5mm and 215mm thick clay brickwork built in mortar designation (i) or (iii) and subjected to concentrated loading through a rigid bearing plate. The effects of loaded area ratio, load position, brick strength and masonry strength have been examined with reference to the strength enhancement factor, based on the characteristic compressive strength of the masonry.