Structural and experimental analysis of composite trusses

Abstract

The composite trusses can be used for greater spans up to 30m, which allows better use of internal space without restricting columns. To create the interaction between steel and concrete, it is necessary to prevent the relative slip at the steel and concrete interface using the shear connectors. But the local effects of a concentrated longitudinal force and the distribution of the shear force between the steel section and concrete slab, as a special task, should be appropriately examined. The finite element analyses were used to investigate numerically this structural system behavior, exploiting several computer procedures. Four steel-concrete composite truss beams were fabricated and experimentally tested to validate theoretical values. The outputs of this research are presented in the paper.