Stress analysis of centrifuged concrete filled steel tube elements

Abstract

This paper describes the complex behaviour of Hollow Concrete Filled Tubes (HCFT) with centrifuged concrete under axial load and includes both theoretical and experimental parts of stress state investigation for various period of loading. The main goal of this investigation was to compare theoretical and test values on the external surfaces of steel shell and concrete core and to derive expression how to find 3D stresses in the interaction surfaces between HCFT components.