WIT Press


Reinforced High Strength Concrete Beams Subjected To Air Blast Loading

Price

Free (open access)

Paper DOI

10.2495/SU040061

Volume

73

Pages

10

Published

2004

Size

391 kb

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

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