A PRACTICAL MODEL FOR SEISMIC ANALYSIS OF REINFORCED CONCRETE SHEAR WALL BUILDINGS |
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Authors: | TAE-WAN KIM∗ DOUGLAS A. FOUTCH JAMES M. LaFAVE |
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Affiliation: | 1. Department of Civil and Environmental Engineering , University of Illinois at Urbana-Champaign , 3129a NCEL, 205 N. Mathews Ave, Urbana, IL, 61801, USA;2. 3129b NCEL , 205 N. Mathews Ave, Urbana, IL, 61801, USA;3. 3108 NCEL , 205 N. Mathews Ave, Urbana, IL, 61801, USA |
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Abstract: | A simple macro-model for reinforced concrete shear walls is proposed, which consists of spring elements representing flexure and shear behaviour. The model for flexural behaviour is based on section analysis, while the model for shear behaviour is based on key parameters of the flexural behaviour. Four wall test specimens are selected to evaluate the reliability of the model. Modelling parameters for the backbone curves and the hysteretic rules are examined by conducting static and time history analyses, with the hysteretic response of a test specimen compared to that calculated using the proposed model. Results show some differences between measured and calculated shear force versus shear distortion relationships, but the model is acceptable because the differences do not significantly affect calculated global response. Parametric studies are also conducted to examine the influence of modelling parameters on seismic demand and capacity, which are the major design parameters for structural performance evaluation. Differences due to variation in modelling parameters are not significant, further indicating that the proposed model is reasonable. |
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Keywords: | Shear wall reinforced concrete analytical modeling macro-model seismic loads. |
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