Korkh O. Stress-deformed state and reliability of joints of welded steel frames

Object - welded steel frame construction joints; goal - determining valid and reliable units of steel frame structures through analysis of their stress-strain state and the nature of the possible destruction methods - methods of construction mechanics and elasticity theory, the method of boundary integral equations and finite element method in the analysis of stress and strain of steel constructions joints, experimental methods of stress and strain of steel constructions joints, correlation analysis in identifying the degree of bounce depends steel units, methods of reliability theory in assessing the reliability of nodes; novelty - first performed adapting the method of boundary integral equations for numerical analysis of stress and strain of steel frame units, developed and studied mathematical models of steel frames nodes, found typical features of their work, experimental studies of stress-strain behavior of steel frame units and confirmed the results of numerical studies revealed features of workjoints, depending on the design schemes experimentally identified model failures of nodes, based on assessing their reliability, methodology and application of correlation analysis functions reserve load carrying capacity of joint in assessing the reliability of frame steel units with regard to the constructive scheme of the possible destruction, first obtained estimates of reliability for different types of welded assemblies steel frames; industry - construction.