STEEL CONSTRUCTION ENGINEERING
Online ISSN : 1884-0329
Print ISSN : 1880-9928
ISSN-L : 1880-9928
A PROPOSAL FOR EVALUATING MECHANICAL PROPERTIES OF HIGH STRENGTH STEELS AFTER A FIRE
Hanbin GEMotoya SUZUKILan KANGRyota KAWASUMI
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JOURNAL FREE ACCESS

2019 Volume 26 Issue 101 Pages 101_69-101_78

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Abstract

This study is aimed at evaluating the residual properties of high strength structure steel (HSSS) after a fire. Tensile coupons obtained from the HSSS Q690 sheets were heated to various temperatures up to 900 °C, and then were cooled down in furnace to ambient temperature. Tensile coupon tests were carried out to obtain their post-fire mechanical properties and ductile fracture behaviors. Test results showed that the HSSS can keep the unchanged mechanical properties after it experiences temperatures up to 600 °C. As a result, prediction equations are obtained to evaluate the post-fire properties of HSSS.

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© 2019 Japanese Society of Steel Construction
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