Summary:
STEEL AS A STRUCTURAL MATERIAL
Steel is regarded as a good structural material for the earthquake resistant construction because of its two important characteristics: First, its ability to deform inelastically for very large amounts (i.e., high ductility) and secondly, its large strength-to-weight ratio which results in lighter structures attracting less seismic forces. The steel for use in earthquake resistant construction should be chosen with due consideration to inelastic properties of the steels and their weldability. In general, the steels selected should have following characteristics (AISC -LRFD 1991):
• Ratio of tensile to yield strength between 1.2 to 1.8
• Pronounced stress-strain plateau at yield strength.
• Large inelastic strain capability.
• Tension elongation of 20% or greater in a 50.8 mm gauge length.
• Good weldability for inelastic behaviour.

Format:
Pages : 12 +23
Size: 580 kb + 290 kb
Author :Durgesh C. Rai,Department of Civil Engineering ; Indian Institute of Technology Kanpur

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