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Structural Engineering and Mechanics Volume 67, Number 1, July10 2018 , pages 079-85 DOI: https://doi.org/10.12989/sem.2018.67.1.079 |
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Topology optimization of reinforced concrete structure using composite truss-like model |
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Yang Zhiyi, Zhou Kemin and Qiao Shengfang
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| Abstract | ||
| Topology optimization of steel and concrete composite based on truss-like material model is studied in this paper. First, the initial design domain is filled with concrete, and the steel is distributed in it. The problem of topology optimization is to minimize the volume of steel material and solved by full stress method. Then the optimized steel and concrete composite truss-like continuum is obtained. Finally, the distribution of steel material is determined based on the optimized truss-like continuum. Several numerical results indicate the numerical instability and rough boundary are settled. And more details of manufacture and construction can be presented based on the truss-like material model. Hence, the truss-like material model of steel and concrete is efficient to establish the distribution of steel material in concrete. | ||
| Key Words | ||
| strut-and-tie; topology optimization; truss-like continuum; steel; concrete | ||
| Address | ||
| Yang Zhiyi and Zhou Kemin: College of Civil Engineering, Huaqiao University, Jimei, Xiamen, 361021, China Qiao Shengfang: School of Civil Engineering and Transportation, South China University of Technology, Tianhe, Guangzhou, 510641, China | ||