Seismic Performance and Global Ductility of RC Frames Rehabilitated with Retrofitted Joints by CFRP Laminates

Abstract

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.

Department(s)

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)

1671-3664

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2014 Institute of Engineering Mechanics (IEM), All rights reserved.

Publication Date

01 Mar 2014

Link to Full Text

Share

 
COinS