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Effect of shear walls on the behavior of reinforced concrete buildings under earthquake loading
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Date
2009
Author
Çömlekoğlu, Hakkı Gürhan
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An analytical study was performed to evaluate the effect of shear wall ratio on the dynamic behavior of mid-rise reinforced concrete structures. The primary aim of this study is to examine the influence of shear wall area to floor area ratio on the dynamic performance of a building. Besides, the effect of shear wall configuration and area of existing columns on the seismic performance of the buildings were also investigated. For this purpose, twenty four mid-rise building models that have five and eight stories and shear wall ratios ranging between 0.51 and 2.17 percent in both directions were generated. These building models were examined by carrying out nonlinear time-history analyses using PERFORM 3D. The analytical model used in this study was verified by comparing the analytical results with the experimental results of a full-scale seven-story reinforced concrete shear wall building that was tested for U.S.-Japan Cooperative Research Program in 1981. In the analyses, seven different ground motion time histories were used and obtained data was averaged and utilized in the evaluation of the seismic performance. Main parameters affecting the overall performance were taken as roof and interstory drifts, their distribution throughout the structure and the base shear characteristics. The analytical results indicated that at least 1.0 percent shear wall ratio should be provided in the design of mid-rise buildings, in order to control observed drift. In addition; when the shear wall ratio increased beyond 1.5 percent, it was observed that the improvement of the seismic performance is not as significant.
Subject Keywords
Civil engineering.
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http://etd.lib.metu.edu.tr/upload/2/12611277/index.pdf
https://hdl.handle.net/11511/19238
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Graduate School of Natural and Applied Sciences, Thesis
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H. G. Çömlekoğlu, “Effect of shear walls on the behavior of reinforced concrete buildings under earthquake loading,” M.S. - Master of Science, Middle East Technical University, 2009.