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Online ISSN : 1884-0329
Print ISSN : 1880-9928
ISSN-L : 1880-9928
Investigation of Steel Mechanical Properties for Bridge
Kuniaki MINAMIChitoshi MIKI
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2004 Volume 11 Issue 42 Pages 121-132


Recently, the quality of steel has been remarkably improved, and high performance steel for bridge has also been developed. However, when it comes to how much, it has not been clarified. In this paper, first, we investigated the number of 1412 steel on the basis of the mill sheet in order to clarify their quality. Investigated items were tensile strength, yield strength, charpyabsorbed-energy, PcM(cracking parameter of material) and Ceq(carbon equivalent), and these steel mechanical properties were shown. Then, we also showed the degree of improvement in the quality, comparing with the data 30 years ago.

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