Elastoplastic Quasi-Static and Impact Load Response of Steel Structure Sub-Assemblage with CFRP Strips

Ali Al Aloosi and Zia Razzaq
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Ali Al Aloosi: Turner Construction, USA
Zia Razzaq: Old Dominion University, USA

European Journal of Engineering and Technology Research, 2023, vol. 8, issue 2, 13-15

Abstract: Presented in this paper is the outcome of an experimental investigation of the elastoplastic quasi-static and impact load response of a steel sub-assemblage constructed using a pair of hollow square section members with or without Carbon Fiber Reinforced Polymer (CFRP) strips. The sub-assemblage consists of a long structural member welded to a short member, thus representing a typical combination of a column and a beam on the face of a multi-story steel building frame. The column is subjected to a lateral quasi-static or impact load. Tests are conducted on four separate steel sub-assemblages. The first two tests are conducted with a gradually increasing flexural load applied at the midspan of the column up to the collapse condition without and with CFRP strips, respectively. Additional two tests are performed with a flexural impact load applied at midspan of the column also both without and with CFRP strips, respectively. The results of the study show that CFRP strips substantially increase the quasi-static collapse load of the sub-assemblage. However, when subjected to an impact load, the steel structure sub-assemblage with CFRP strips developed smaller strains in comparison with those without the CFRP strips. The post-impact time-dependent strains also became considerably smaller for the sub-assemblage with CFRP strips.

Keywords: Elastoplastic; Quasi-Static; Impact Load Response; Steel Structure Sub-Assemblage; Carbon Fiber Reinforced Polymer (CFRP) Strips (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:epw:ejeng0:v:8:y:2023:i:2:id:62968

DOI: 10.24018/ejeng.2023.8.2.2968

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