火災時における合成梁の終局曲げ耐力に関する実験的研究

概要

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The paper is intended to summarize findings from fire resistance tests on simply supported beams conducted as part of a study on the fire resistance of steel-concrete composite beams. The specimens were comprised of H-shaped steel beam and overlying composite slab with profiled steel decks, with studs at the interface. The composite beams were designed to be partial composite. A total of six models were tested. The test parameters included the level of load, cross section of steel beam and presence of fire protection. Based on the test results, a new formulation is proposed to calculate with a good accuracy the flexural strength of composite beam on the basis of the plastic theory taking account of the heat-induced degradation of steel/concrete materials and shear capacity of studs.
社団法人日本建築学会の論文
2008-12-30