Reinforced High Strength Concrete Beams
Subjected To Air Blast Loading
Author(s)
J. Magnusson & M. Hallgren
Abstract
A total of 49 reinforced concrete beams of both high strength concrete (HSC)
and, for reference, normal strength concrete (NSC) were tested. 38 beams were
subjected to air blast loading in a shock tube and the remaining eleven beams
were tested statically for reference. Concrete with nominal compressive cube
strengths 40, 100, 140, 150 and 200 MPa were used and a few beams also
contained steel fibres. Furthermore, beams with two concrete layers of different
strength were tested. The purpose of this investigation was to study the structural
behaviour of the concrete beams subjected to air blast loading.
All beams subjected to static loading failed in flexure. In the dynamic tests,
beams without fibres and with high ratios of reinforcement exhibited shear
failure. It was observed that the inclus
Keywords
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