Stress state of steel frame with variant modeling of truss joints
Abstract
Stress state of steel frame with variant modeling of truss joints
Incoming article date: 06.04.2024Research of modeling methods of steel structures's joints with the use of computer-aided engineering (CAE) systems is important, because scheme that most accurately reflects an actual state of the elements makes it possible to select their rational design. The aim of the article is to analyze an influence of modeling variations of truss joints on the stress state of a transverse frame. The object of the research is the plane frame of a two-story building with the truss made of hot-rolled steel equal leg angles. The subject of the study is the stressed state of the structure. In the article the following problems are solved: two models of the frame (with flexible and rigid truss joints) were created with the use of LIRA-SAPR CAE program, loads were calculated, results were obtained, the values of bending moments and shear forces in the elements were analyzed. Conclusions were drawn about the influence of variant modeling of truss joints on the stress state of construction.
Keywords: CAE, flexible joint, joint, plane frame, rigid knot, static scheme, steel, steel angle, stress-strain state, truss