Abstract
AbstractHigh strength steel has been employed in modern steel‐framed building structures. It should be highlighted that these steel structures may be built‐up through fabrication of hot‐rolled steel sections or welded high strength steel plates. This study performed an extensive series of compression tests on high strength stub columns. These columns were made of Q620E steel plates through welded steel plates. The ultimate loads and displacements were extracted from the load‐displacement curves observed from the tests. The continuous strength method (CSM) was employed for analysis of the local buckling behavior of stub columns. In addition, a series of tensile strength tests were performed for standard steel coupons. A modified stress‐strain constitutive model was then proposed for design purpose for high strength steels. The predicted ultimate loads were compared with the recorded ultimate loads. It can be found that a reliable predication may be achieved in application of CSM in high strength steel sections.
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