科研之友
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摘要
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.\n
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单位名城大学
