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Seismic performance of steel-PEC spliced frame beam
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SYSNO ASEP 0561256 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Seismic performance of steel-PEC spliced frame beam Author(s) Yao, Y. (CN)
Huang, H. (CN)
Zhang, Wei (UTAM-F) RID, ORCID, SAI
Ye, Y. (CN)
Xin, L. (CN)
Liu, Y. (CN)Number of authors 6 Article number 107456 Source Title Journal of Constructional Steel Research. - : Elsevier - ISSN 0143-974X
Roč. 197, October (2022)Number of pages 11 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords the steel-PEC spliced frame beam (SPSFB) ; seismic behavior ; flexural capacity ; deformation OECD category Civil engineering Method of publishing Limited access Institutional support UTAM-F - RVO:68378297 UT WOS 000848330200004 EID SCOPUS 85135305458 DOI 10.1016/j.jcsr.2022.107456 Annotation In this paper we propose a novel form known as the steel-PEC spliced frame beam (SPSFB), which is intended to maintain the advantages of the PEC beam while reducing the consumption of steel. In the SPSFB, an independent H-beam (mid-portion beam) is replaced by the PEC beam with a thinner flange. The PEC and stub beams are connected by web bolts, a welded flange, and a girth welded flange cover plate to improve flexural capacity. Low cycle loading tests were conducted on five SPSFB specimens testing the variables of the concrete strength, the length of the stub beam, and the length of flange-plates. Two failure modes were observed, and the related seismic behavior was investigated. When the damage occurred at the bottom of the PEC beam, higher grade concrete was correlated with better seismic performance. When the damage occurred at the bottom of the stub beam, setting an appropriate length of stub beam and flange-plate can improve the hysteretic capacity and further reduce steel consumption. Based on elastic and plastic analysis, the bearing capacities and deformation were calculated. The calculated results agreed well with the experimental results. Workplace Institute of Theoretical and Applied Mechanics Contact Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Year of Publishing 2023 Electronic address https://doi.org/10.1016/j.jcsr.2022.107456
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