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http://dx.doi.org/10.5000/EESK.2018.22.2.095

Efficient Simulation of Hysteretic Behavior of Diagonally Reinforced Concrete Coupling Beams  

Koh, Hyeyoung (Department of Architectural Engineering, Hanyang University)
Han, Sang Whan (Department of Architectural Engineering, Hanyang University)
Lee, Chang Seok (Department of Architectural Engineering, Hanyang University)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.22, no.2, 2018 , pp. 95-101 More about this Journal
Abstract
Diagonally reinforced concrete coupling beams (DRCB) play an important role in coupled shear wall systems since these elements dissipate most of seismic input energy under earthquake loading. For reliable seismic performance evaluation using nonlinear response history analysis, it is important to use an accurate analytical model for DRCBs. In this study, the Pinching4 model is used as a base model to simulate the cyclic behavior of DRCBs. For simulating the cyclic behavior of DRCBs using the Pinching4 model, the analytical parameters for backbone curve, pinching and cyclic deterioration in strength and stiffness should be computed. To determine the proper values of the constituent analytical parameters efficiently and accurately, this study proposes the empirical equations for the analytical parameters using regression analyses. It is shown that the hysteretic behavior of coupling beams can be simulated efficiently and accurately using the proposed numerical model with the proposed empirical equations of model parameters.
Keywords
Diagonally reinforced concrete coupling beam; Numerical parameter; Regression; Shear wall; Empirical equation;
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