Seismic Performance of a Corroded Reinforce Concrete Frame Structure Using Pushover Method

SAP2000 software was used to build the finite element model of a six-storey-three-span reinforced concrete (RC) frame structure. The numerical simulation of the seismic performance of the RC frame structure incorporating different levels of rebar corrosion was conducted using pushover analysis metho...

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Bibliographic Details
Published in:Advances in civil engineering 2018-01, Vol.2018 (2018), p.1-12
Main Authors: Zhao, Guifeng, Li, Yaoliang, Liu, Ran, Zhang, Meng
Format: Article
Language:English
Subjects:
Bearing capacity
Bond strength
Building construction
Cement
Civil engineering
Columns (structural)
Computer simulation
Concrete
Corrosion
Corrosion rate
Cracks
Deformation
Earthquakes
Failure analysis
Finite element analysis
Finite element method
Hinges
Masonry
Mathematical models
Rebar
Reinforced concrete
Reinforcing steels
Seismic analysis
Seismic engineering
Seismic response
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Summary:SAP2000 software was used to build the finite element model of a six-storey-three-span reinforced concrete (RC) frame structure. The numerical simulation of the seismic performance of the RC frame structure incorporating different levels of rebar corrosion was conducted using pushover analysis method. The degradation characteristics of the seismic performance of the corroded structure under severe earthquake were also analyzed. The results show that the seismic performance of the RC frame decreased significantly due to corrosion of the longitudinal rebars. And the interstory drift ratios increase dramatically with the increasing of the corrosion rate. At the same time, the formation and development of plastic hinges (beam hinges or column hinges) will accelerate, which leads to a more aggravated deformation of the structure under rare earthquake action, resulting in a negative effect to the seismic bearing capacity of the structure.
ISSN:1687-8086
1687-8094
DOI:10.1155/2018/7208031