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Earthquakes and Structures
  Volume 7, Number 5, November 2014, pages 877-892

Different macroscopic models for slender and squat reinforced concrete walls subjected to cyclic loads
Jiuk Shin and JunHee Kim

    The purpose of this study is to present adequate modeling solutions for squat and slender RC walls. ASCE41-13 (American Society of Civil Engineers) specifies that the aspect ratios of height to width for the RC walls affect the hysteresis response. Thus, this study performed non-linear analysis subjected to cyclic loading using two different macroscopic models: one of macroscopic models represents flexural failure of RC walls (Shear Wall Element model) and the other (General Wall Element model) reflects diagonal shear failure occurring in the web of RC walls. These analytical results were compared to previous experimental studies for a slender wall (> aspect ratio of 3.0) and a squat wall (= aspect ratio of 1.0). For the slender wall, the difference between the two macroscopic models was negligible, but the squat wall was significantly affected by parameters for shear behavior in the modeling method. For accurate performance evaluation of RC buildings with squat walls, it would be reasonable to use macroscopic models that give consideration to diagonal shear.
Key Words
    macroscopic model; nonlinear analysis; reinforced concrete (RC) wall; aspect ratio
Jiuk Shin: School of Civil and Environmental Engineering, Georgia Institute of Technology,
790 Atlantic Drive, Atlanta, GA 30332-0355, USA

JunHee Kim: Department of Architectural Engineering, Yonsei University, 50 Yonseiro, Seadaemun-gu, Seoul 120-749, Republic of Korea

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