The Structural Engineer > Archive > Volume 66 (1988) > Issues > Issue 17 > Design Rules for Concentrated Loads on Masonry
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Design Rules for Concentrated Loads on Masonry

Design rules for assessing the degree of bearing strength enhancement in solid walls subjected to Concentrated load are presented. These are derived from all previously reported experimental and analytical studies of this problem and apply to all types of masonry built with solid units (clay, light and normal-weight concrete, calcium silicate). Relatively simple design rules are proposed because of the large number of variables involved and the scatter of test results. The bearing strength enhancement is expressed as a function of the loaded area ratio and load location, with all other variables being absorbed in the general scatter of test results. The procedure also includes an allowance for the varying influence of wall size on bearing strength enhancement and, when compared to reported experimental results, yields conservative estimates of strength enhancement in almost all cases. A.W. Page and Professor A.W. Hendry