Shehovtsov V. Punching shear strength of reinforced concrete plates by various geometry punches

Object of researches - column-plate joints of reinforced-concrete elements of non-beams framework buildings; a purpose - experimental study of stress-strain and ultimate states of reinforced concrete plates under punching shear by various punches; development of non-linear FE methodic based on general model of reinforced concrete mechanics; methods - punching shear by various geometry punches experiments of reinforced concrete plates. Reinforced concrete mechanics, non-linear FE-elements numerical methods; results -experimental data of cracking, displacement and surface forms under punching shear of reinforced concrete plates are got; novelty - advanced proposals of normative calculate method of ultimate load definition for punching shear by various geometry punches are given; the realization of Karpenko's reinforced concrete mechanical model with cracks in numerical FE investigation for punching shear of reinforced concrete plates; the results of comparison between experimental and numerical results and test results, which confirm reliability of proposed method; it is inculcated - at the development of constructive solutions of slab-column joints designing.