Abstract
The adaptively shifted integration technique is applied to the finite-element collapse analysis of beams and framed structures composed of brittle materials. Linear Timoshenko beam elements are employed for the analysis. Plastic deformation and cracking on a cross section are treated using the layered approach. Points at which plastic deformation and cracking occur along the element length are accurately determined by the adaptive shifting of a numerically integrated section in each element. Numerical studies for beams and frames with and without ductile reinforcements are carried out to demonstrate the validity of the proposed numerical technique.
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