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Structural Engineering and Mechanics Volume 21, Number 1, September10 2005 , pages 35-52 DOI: https://doi.org/10.12989/sem.2005.21.1.035 |
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Yu-Chi Sung, Kuang-Yen Liu, Chin-Kuo Su, I-Chau Tsai and Kuo-Chun Chang
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| Abstract | ||
| This paper proposes a realistic approach to pushover analyses of reinforced concrete (RC) structures with single column type and frame type. The characteristic of plastic hinge of a single RC column subjected to fixed axial load was determined first according to column? three distinct failure modes which were often observed in the experiments or earthquakes. By using the determined characteristic of plastic hinge, the pushover analyses of single RC columns were performed and the analytical results were investigated to be significantly consistent with those of cyclic loading tests. Furthermore, a simplified methodology considering the effect of the variation of axial force for each RC column of the frame structure during pushover process is proposed for the first time. It would be helpful in performing pushover analysis for the structures examined in this study with efficiency as well as accuracy. | ||
| Key Words | ||
| performance-based design; pushover analysis; reinforced concrete column; plastic hinge. | ||
| Address | ||
| Yu-Chi Sung; Department of Civil Engineering, National Taipei University of Technology, No.1, Sec. 3, Chung-Hsiao E. Rd., Taipei, 10608, Taiwan, R.O.C. Kuang-Yen Liu; Department of Civil Engineering, National Taiwan University, No.1, Sec. 4, Roosevelt Road, Taipei, Taiwan, 106, Taiwan, R.O.C. Chin-Kuo Su; Department of Civil Engineering, National Taipei University of Technology, No.1, Sec. 3, Chung-Hsiao E. Rd., Taipei, 10608, Taiwan, R.O.C. I-Chau Tsai and Kuo-Chun Chang; Department of Civil Engineering, National Taiwan University, No.1, Sec. 4, Roosevelt Road, Taipei, Taiwan, 106, Taiwan, R.O.C. | ||