Influence of steel fibres on the blast response of normal-strength and high-strength reinforced concrete columns

[摘要] This paper examines the influence of steel fibres on the blast performance of normal-strength concrete and high-strength concrete columns. As part of the study, four normal-strength and high-strength concrete columns built with and without steel fibres are tested under simulated blast loads using the shock-tube facility at the University of Ottawa. The specimens include two columns built with plain concrete and two columns built with steel fibre-reinforced concrete. The results show that the addition of steel fibres in reinforced concrete columns leads to important enhancements in blast performance, with improved control of mid-span displacements at equivalent blasts and increased damage tolerance.

[发布机构] Department of Civil Engineering, University of Ottawa, Ottawa; ON; K1N5S5, Canada^1

[关键词] High-strength concrete columns;High-strength reinforced concrete;Mid-span displacements;Normal strength concrete and high strength concretes;Reinforced concrete column;Shock tube facility;Steel fibre reinforced concrete;University of Ottawa