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http://dx.doi.org/10.5000/EESK.2005.9.2.029

Analytical Study on Inelastic Behavior of RC Bridge Columns with Unbonding of Main Reinforcements at Plastic Hinge Region  

Kim, Tae-Hoon (대우건설기술연구소)
Shin, Hyun-Mock (성균관대학교 토목환경공학과)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.9, no.2, 2005 , pp. 29-36 More about this Journal
Abstract
The purpose of this study is to investigate the inelastic behavior of reinforced concrete bridge columns with unbonding of main reinforcements at plastic hinge region. A computer program, named RCAHEST (Reinforced Concrete Analysis in Higher Evaluation System Technology), for the analysis of reinforced concrete structures was used. Material nonlinearity is taken into account by comprising tensile, compressive and shear models of cracked concrete and a model of reinforcing steel. The smeared crack approach is incorporated. The effect of unbonding of main reinforcements at plastic hinge region has been also taken into account to model the concrete and reinforcing steel. The proposed numerical method for the inelastic behavior of reinforced concrete bridge columns with unbonding of main reinforcements at plastic hinge region is verified by comparison with reliable experimental results.
Keywords
plastic hinge region; unbonding; reinforced concrete bridge columns; inelastic behavior; material nonlinearity;
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