ANALYSIS OF STRAIN HARDENING IN STEEL BEAMS USING MILL TESTS

摘要: Publisher Summary Experimental bending tests carried out to assess the reliability of plastic moment resistance formula reveal experimental strengths that typically exceed their theoretical capacities by an average 18%. These findings are based on lightweight sections, whose stress–strain characteristics show strain hardening immediately after yielding, with no significant zone plasticity. It is not understood whether results transferable heavier and this work attempts answer scale effects question. A method for predicting full (elastic postplastic) moment-rotation curves laterally restrained steel beams data from mill explained. comparison between vs. end rotations shows capable strength ductility a high degree accuracy. survey test variety section sizes presented, which used characterize strain-hardening sections differing span depth ratios. Thus, effect size ratio has assessed in chapter.