Investigation into Impact of Column Rectangularity on Shear Strength of No-Stirrup Rc Members in General Shear
Based on the links among various shear failure modes and the unified model for beam-like shear and symmetrical punching previously proposed, a new approach is presented to allow for the effect of column rectangularity on the shear capacities of members in general shear, which includes punching and beam-like shear as two particular extremes. In succeeded regression analysis, linear metric form is selected out of practical concern, and a lower-bound design equation is finally developed that can not only measure the influence of this variable on members in general shear, but can give a clear physical explanation to the measurement, as is absent in certain codes.
D. Ren and C. Y. Zhou, "Investigation into Impact of Column Rectangularity on Shear Strength of No-Stirrup Rc Members in General Shear", Advanced Materials Research, Vols. 163-167, pp. 1456-1459, 2011