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Experimental study of predamaged columns strengthened by HPFL and BSP under combined load cases
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SYSNO ASEP 0531427 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Experimental study of predamaged columns strengthened by HPFL and BSP under combined load cases Author(s) Huang, H. (CN)
Huang, M. (CN)
Zhang, Wei (UTAM-F) RID, ORCID, SAI
Yang, S. (CN)Number of authors 4 Source Title Structure and Infrastructure Engineering. - : Taylor & Francis - ISSN 1573-2479
Roč. 17, č. 9 (2021), s. 1210-1227Number of pages 18 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords bond steel plates ; combined loading ; cyclic loading ; high-performance ferrocement laminate ; predamaged column ; reinforced concrete ; strengthening Subject RIV JM - Building Engineering OECD category Civil engineering R&D Projects GC17-26353J GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UTAM-F - RVO:68378297 UT WOS 000555215900001 EID SCOPUS 85089017454 DOI 10.1080/15732479.2020.1801768 Annotation After the ground motion, a large number of columns remain intact and can be retrofitted and reused. In this paper, to explore the effects of the loading scenario, predamage level and strengthening measures on the seismic performance of reinforced concrete (RC) columns, seven predamaged specimens strengthened with high-performance ferrocement laminate (HPFL) and bond steel plate (BSP) were tested. The results show that the bearing capacity, ductility, single-cycle energy dissipation and stiffness of all the predamaged specimens can be effectively restored and improved by this strengthening method for different loading cases. This strengthening method also significantly improves the shear capacity and changes the failure modes of the predamaged strengthened specimens from those of the corresponding predamaged unstrengthened specimens. The vertical eccentricity only slightly affects the seismic behavior of the specimens, while the horizontal eccentricity significantly increases the length of the failure region and reduces the seismic behavior of the specimens, considering the bearing capacity, energy dissipation capacity, and stiffness. The effects of different predamage levels are unique. Workplace Institute of Theoretical and Applied Mechanics Contact Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Year of Publishing 2022 Electronic address https://doi.org/10.1080/15732479.2020.1801768
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