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Structural Engineering and Mechanics Volume 28, Number 5, March30 2008 , pages 571-585 DOI: https://doi.org/10.12989/sem.2008.28.5.571 |
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Earthquake behavior of stiffened RC frame structures with/without subsoil |
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Y. I. Ozdemir and Y. Ayvaz
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| Abstract | ||
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The purpose of this study is to investigate the linear earthquake behavior of the frame structures including subsoil with different stiffening members and to compare the results of each frame considered. These comparisons are made separately for displacement, bending moments and axial forces for frames with different storey and bay numbers for the time history and the modal analyses. The results of both methods are also compared. The results of the frames with subsoil are also compared with the results of the frames without subsoil. It is concluded that all stiffening members considered in this study decrease the lateral displacement of the frame and the bending moment of the columns and increase the axial force in the columns and that configuration of the bracing members come out to be an important parameter in braced frames since the frames with the same type of bracing give different results depending on configuration. It is also concluded that, in general, the absolute maximum displacements of the frames modeled with subsoil are larger than those of the frames modeled without subsoil. | ||
| Key Words | ||
| earthquake behavior; frame structure; moment-resisting frames; braced frames; frames with shear walls; stiffening members; comparative study. | ||
| Address | ||
| Y. I. Ozdemir and Y. Ayvaz: Dept. of Civil Engineering, Karadeniz Technical University, 61080 Trabzon, Turkey | ||