Seismic Performance and Global Ductility of RC Frames Rehabilitated with Retrofitted Joints by CFRP Laminates
This paper presents a new FRP retrofitting scheme to strengthen local beam-column joints in reinforced concrete (RC) frames. The new retrofitting scheme was proposed following a preliminary study of four different existing retrofitting schemes. A numerical simulation was conducted to evaluate the effectiveness of FRP-strengthened reinforced concrete frames by bridging behavior of local joints to the whole structure. Local confinement effects due to varying retrofitting schemes in the joints were simulated in the frame model. The seismic behavior factor was used to evaluate the seismic performance of the strengthened RC frames. The results demonstrated that the new proposed retrofitting scheme was robust and promising, and finite element analysis appropriately captured the strength and global ductility of the frame due to upgrading of the local joints.
M. Fakharifar et al., "Seismic Performance and Global Ductility of RC Frames Rehabilitated with Retrofitted Joints by CFRP Laminates," Earthquake Engineering and Engineering Vibration, vol. 13, no. 1, pp. 59 - 73, Institute of Engineering Mechanics (IEM), Mar 2014.
The definitive version is available at https://doi.org/10.1007/s11803-014-0212-6
Civil, Architectural and Environmental Engineering
Keywords and Phrases
Beam-Column Joints; Behavior Factor; Dynamic Analysis; FRP; Retrofit; Seismic Performance; Computer Simulation; Concretes; Reinforced Concrete; Seismic Waves
International Standard Serial Number (ISSN)
Article - Journal
© 2014 Institute of Engineering Mechanics (IEM), All rights reserved.
01 Mar 2014