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Computers and Concrete Volume 31, Number 1, January 2023 , pages 9-21 DOI: https://doi.org/10.12989/.2023.31.1.009 |
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Experiment and simulation analysis on full scale double-layer concrete shell |
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Thanh Quang Khai Lam and Thi My Dung Do
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| Abstract | ||
| The published studies usually used analytical method, numerical methods or experimental method to determine the stress-strain state and displacement of the single-layer or multi-layer curved shell types, but with a small scale model. However, a full scale multi-layer doubly curved concrete shell roof model should be researched. This paper presents the results of the experiment and simulation analysis involving stress-strain state, sliding between layers, the formation and development of the full scale double-layer doubly curved concrete shell roof when this shell begins to crack. The results of the this study have constructed the load-sliding strain relationship; strain diagram; stress diagram in the shell layers; the Nx, Ny membrane force diagram and deflection of shell. This results by experimental method on a full scale model of concrete have clarified the working of multi-layer doubly curved concrete shell roof. The experimental and simulation results are compared with each other and compared with the Sap2000 software. | ||
| Key Words | ||
| cracking; doubly curved shell; multi-layer shell; sliding; steel fiber concrete; stress-strain; thin shell | ||
| Address | ||
| Thanh Quang Khai Lam and Thi My Dung Do: Faculty of Civil Engineering, Mien Tay Construction University, 20B Pho Co Dieu, Ward 3, Vinh Long, Vietnam | ||