Abstract
Lack of shear reinforcement in older squat reinforced concrete (RC) bridge columns caused brittle shear failures during past earthquakes. This article reports on an object-oriented computer code, based on a moment-curvature analysis with inclusion of fiber-reinforced polymer-confined concrete models, that was developed to predict the seismic performance of reinforced concrete squat bridge columns. The study involved the seismic assessment of 65 as-built shear-deficient columns in addition to the performance prediction of ductile composite-jacketed columns. For the composite-jacketed columns, the developed software was calibrated through a parametric study of two displacement models and six different concrete confinement models. Subsequently, the authors devised a methodology for the seismic design of shear-deficient columns upgraded with composite-material jackets. The authors conclude that the UCSD shear strength model provides the best correlation with all experimental data.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.