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Providing of the vitality of steel frames of high-rise buildings under action of fire
(КНУБА, 2019) Daurov, M. K.; Bilyk, A. S.
High-rise buildings are sensitive to progressive collapse – when the local destruction leads to the collapse of the entire building or disproportionately large part of it. Current Ukrainian norms are requiring the vitality of high-rise buildings under the action of unidentified factors and, since 2017, - under the action of fire, which is considered in this article.
Stress-strain state of beam corrugated web under patch loading
(КНУБА, 2019) Semchuk, I. Y.; Nilova, T. O.
It’s presented results of numerical investigation via the finite elements method (FEM) of stress-strain state of beam corrugated web under local load action in its plane. It’s concluded that the values of local normal stresses at the level of the web and the flange connection are directly dependent on the web thickness, the flexural and the longitudinal rigidity of the flanges and virtually don’t depend on the web height. A practical technique for determining the limit values of local normal stresses in the web and its stress-strain state is developed.