Journal
JOURNAL OF STRUCTURAL ENGINEERING
Volume 146, Issue 8, Pages -Publisher
ASCE-AMER SOC CIVIL ENGINEERS
DOI: 10.1061/(ASCE)ST.1943-541X.0002725
Keywords
Combined loadings; Corrosion; Concrete; Ductility; Reinforced concrete column; Seismic
Funding
- National Science Foundation of China [51778060]
- Special Fund for the Basic Scientific Research Service of the Central University [300102289401]
- Natural Science Foundation of Jiangsu Province [BK20191441]
- Research Institutional Grant by Czech Academic of Sciences [RVO 68378297]
- Fundamental Research Funds for the Central Universities PHD [300102280711, 300102280713]
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This research focuses on evaluating the seismic properties of corrosion-damaged RC columns strengthened by bonded steel plate (BSP) and high-performance ferrocement laminate (HPFL). The mechanical properties are experimentally investigated based on various combined loading cases. A total of nine square RC columns with identical structural properties are produced, and five of them are corroded and poststrengthened with BSP and HPFL. The effects of the combined loadings, bearing capacity, failure mode, skeleton curves, hysteretic curves, ductility, stiffness degradation, energy dissipation, and plastic hinge characteristics are analyzed. In particular, a new method for calculating the skeleton curves under different failures modes is proposed and agrees well with the experimental results by comparison. (c) 2020 American Society of Civil Engineers.
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