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Computers and Concrete Volume 5, Number 2, April 2008 , pages 135-154 DOI: https://doi.org/10.12989/cac.2008.5.2.135 |
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A computational platform for seismic performance assessment of reinforced concrete bridge piers with unbonded reinforcing or prestressing bars |
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T.-H. Kim, J.-G. Park, Y.-J. Kim and H. M. Shin
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| Abstract | ||
| This paper presents a nonlinear finite element analysis procedure for the seismic performance assessment of reinforced concrete bridge piers with unbonded reinforcing or prestressing bars. A computer program named RCAHEST (Reinforced Concrete Analysis in Higher Evaluation System Technology) is used to analyze reinforced concrete structures; this program was also used in our study. Tensile, compressive and shear models of cracked concrete and models of reinforcing and prestressing steel were used account for material nonlinearity of reinforced concrete. The smeared crack approach was incorporated. To represent the interaction between unbonded reinforcing or prestressing bar and concrete, an unbonded reinforcing or prestressing bar element based on the finite element method was developed in this study. The proposed numerical method for the seismic performance assessment of reinforced concrete bridge piers with unbonded reinforcing or prestressing bars is verified by comparison of its results with reliable experimental results. | ||
| Key Words | ||
| seismic performance; reinforced concrete bridge piers; unbonded reinforcing or prestressing bars; material nonlinearity; finite element method. | ||
| Address | ||
| T.-H. Kim1, J.-G. Park2, Y.-J. Kim1 and H. M. Shin*2 1Civil Engineering Research Team, Daewoo Institute of Construction Technology, 60 Songjuk-dong, Jangan-gu, Suwon, Kyonggi-do, 440-210, Korea 2Department of Civil and Environmental Engineering, Sungkyunkwan University, 300 Chunchun-dong, Jangan-gu, Suwon, Kyonggi-do, 440-746, Korea | ||