Seismic Design Guidelines for Squat Composite- Jacketed Circular and Rectangular Reinforced Concrete Bridge Columns

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Title: Seismic Design Guidelines for Squat Composite- Jacketed Circular and Rectangular Reinforced Concrete Bridge Columns

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

Publication: Structural Journal

Volume: 102

Issue: 4

Appears on pages(s): 505-514

Keywords: bridge; column; reinforced concrete; seismic

Date: 7/1/2005

Abstract:
An object-oriented computer code, based on a moment-curvature analysis with inclusion of fiber-reinforced polymer-confined concrete models, was developed to predict the seismic performance of reinforced concrete squat bridge columns. The study involved seismic assessment of as-built shear-deficient columns in addition to performance prediction of ductile composite-jacketed columns. For as-built columns, the code assessed the accuracy of several shear strength models using experimental data of 65 shear-deficient columns. For composite-jacketed columns, the developed software was calibrated through a parametric study of two displacement models and six different concrete confinement models. Subsequently, a methodology for the seismic design of shear-deficient columns upgraded with composite-material jackets was devised.