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Computers and Concrete Volume 19, Number 4, April 2017 , pages 405-411 DOI: https://doi.org/10.12989/cac.2017.19.4.405 |
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Single and multi-material topology optimization of CFRP composites to retrofit beam-column connection |
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Hoang V. Dang, Dongkyu Lee and Kihak Lee
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| Abstract | ||
| Carbon Fiber Reinforced Plastic (CFRP) has commonly been used to strengthen existing RC structures. Wrapping the whole component with CFRP is an effective method and simple to execute. Besides, specific configuration of CFRP sheets (L, X and T shape) has also been considered in some experiments to examine CFRP effects in advance. This study aimed to provide an optimal CFRP configuration to effectively retrofit the beam-column connection using continuous material topology optimization procedure. In addition, Moved and Regularized Heaviside Functions and penalization factors were also considered. Furthermore, a multi-material procedure was also used to compare with the results from the single material procedure. | ||
| Key Words | ||
| topology optimization; 99-line matlab code; multi-material; stress concentration; beam-column joint; retrofitted | ||
| Address | ||
| Hoang V. Dang, Dongkyu Lee and Kihak Lee: Department of Architectural Engineering, Sejong University, 98 Gunja-dong, Gwangjin-gu, Seoul 143-747, Republic of Korea | ||