Abstract
Synopsis This paper represents a detailed study, based on dimensional analysis, of the factors which seem to affect the shear strength of prestressed concrete beams under one- or two-point loading. Fifty-eight pre-tensioned concrete beams of seven different cross-sections were tested. The load at the first inclined tension crack rather than the ultimate load is taken to limit the capacity of these beams in shear because of the indeterminate factors involved in calculating the latter. An expression for predicting this inclined cracking load is derived and compared, for specific cases, with other published expressions. Other published test results are in a good agreement with the derived expression.
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