期刊
JOURNAL OF EARTHQUAKE ENGINEERING
卷 22, 期 3, 页码 382-403出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/13632469.2016.1224744
关键词
Non-Rectangular Reinforced Concrete Wall; Initial Stiffness; Stiffness Ratio; Shear Stiffness; Shear Deformation; Shear Lag Effect; Loading Direction
The effective stiffness of a structural wall is an important property in design, which many design codes estimate by the moment inertia of the wall section with a reduction factor. The reduction factor is typically estimated by empirical equations based on configurations of the wall. The existing methods for the reduction factor were proposed based on investigations on rectangular reinforced concrete (RC) walls. The effective stiffness of non-rectangular RC walls can be more complex than that of rectangular RC walls. As such, more research investigations are required. Based on finite element models, the effective stiffness of U-shaped and T-shaped RC walls was investigated in this paper. The numerical results were further adopted to develop methods for calculating the effective stiffness of non-rectangular wall in different loading directions. The proposed method was afterward compared with the experimental data.
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