Analysis of sloping brace stiffness influence on stability and load bearing capacity of a truss

The paper is focused on the numerical study of stability and load bearing capacity of a truss with side elastic braces. The structure is made in reality. The rotational and sliding brace stiffnesses were taken into account. Linear buckling analysis and non-linear static analysis with geometric and material nonlinearity were performed for the beam and shell model of the truss with respect to the angle of sloping braces. As a result the buckling load and limit load in relation to the truss bracing stiffness was obtained. The threshold bracing condition necessary to provide maximum buckling resistance of the structure was proposed. The truss bearing capacity due to Eurocode requirements was calculated.