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Computers and Concrete Volume 16, Number 5, November 2015 , pages 703-722 DOI: https://doi.org/10.12989/cac.2015.16.5.703 |
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Performance assessment of advanced hollow RC bridge column sections |
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T.H. Kim, H.Y. Kim, S.H. Lee, J.H. Lee and H.M. Shin
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| Abstract | ||
| This study investigates the performance of advanced hollow reinforced concrete (RC) bridge column sections with triangular reinforcement details. Hollow column sections are based on economic considerations of cost savings associated with reduced material and design moments, as against increased construction complexity, and hence increased labor costs. The proposed innovative reinforcement details are economically feasible and rational, and facilitate shorter construction periods. We tested a model of advanced hollow column sections under quasi-static monotonic loading. The results showed that the proposed triangular reinforcement details were equal to the existing reinforcement details, in terms of the required performance. We used a computer program, Reinforced Concrete Analysis in Higher Evaluation System Technology (RCAHEST), for analysis of the RC structures; and adopted a modified lateral confining effect model for the advanced hollow bridge column sections. Our study documents the testing of hollow RC bridge column sections with innovative reinforcement details, and presents conclusions based on the experimental and analytical findings. Additional full-scale experimental research is needed to refine and confirm the design details, especially for the actual detailing employed in the field. | ||
| Key Words | ||
| performance; hollow; column sections; triangular reinforcement details; cost savings;construction periods | ||
| Address | ||
| T.H. Kim, S.H. Lee: Technology Development Team, Samsung Construction & Trading Corporation,5th Fl., Daerung Gangnam Tower, 826-20 Yeoksam1-dong, Gangnam-gu, Seoul 135-935, Korea H.Y. Kim, J.H. Lee: Department of Civil Engineering, Yeungnam University, 214-1 Dae-dong, Gyeongsan-si,Gyeongsangbuk-do, 712-749, Korea H.M. Shin: School of Civil and Architectural Engineering, Sungkyunkwan University, 300 Cheoncheon-dong, Jangan-gu, Suwon-si, Gyeonggi-do, 440-746, Korea | ||