Influence of the compaction method on the bond between steel and concrete in composite columns

Abstract

The aim of the present paper is to assess the impact of the compaction method on the bond between concrete and steel in composite columns. The full scale laboratory tests show that the bond between vibrated concrete and steel is better than in case of self-compacting concrete. It is indicated that the higher concrete compressive plastic stress level the more strength the bond. The results obtained on the basis of laboratory tests are compared with calculations performed according to the Eurocode 4. Moreover, the bond considered is modeled by the FE method. The measured strains and thus computed stresses compare favorably with the FE predictions.