Title: Seismic Design Criteria for Circular Lap-Spliced Reinforced Concrete Bridge Columns Retrofitted with Fiber-Reinforced Polymer Jackets

Author(s): Hussein M. Elsanadedy and Medhat A. Haroun

Publication: Structural Journal

Volume: 102

Issue: 3

Appears on pages(s): 354-362

Keywords: bridges; columns; lap splice; reinforced concrete; seismic design

DOI: 10.14359/14406

Date: 5/1/2005

Abstract:
In this study, an object-oriented computer code was developed for predicting the behavior of circular lap-spliced bridge columns retrofitted with advanced composite-material jackets. The numerical model is based on a moment-curvature analysis of the column section with the inclusion of bond-slip mechanism and fiber-reinforced polymer-confined concrete models. The developed software was calibrated through a parametric study comparing the experimental and predicted results for different test data available in the literature. Accordingly, an optimum computational tool was developed to accurately predict the performance of all columns. The emphasis of this paper is on the establishment of a seismic design procedure for circular lap-splice reinforced concrete bridge columns upgraded with fiber-reinforced polymer jackets.