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| Energy-dissipation capacity of a self-centering prefabricated coupled shear wall with open-close gap dampers |
| LU Zheng1,2,WANG Yan1,YAN Deyu1 |
| 1.College of Civil Engineering, Tongji University, Shanghai 200092,China； 2.State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092,China |
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Abstract To improve the energy consumption of self-centering prefabricated coupled shear wall, an open-close gap damper (OCGD) was proposed, which can adapt to large deformations near the joints and help the structure achieve both good self-centering and energy-dissipation ability. Static tests were used to obtain the hysteresis curve of the damper, which verified good energy dissipation abilities of the proposed damper. Through simulation by Opensees, it was found that the proposed damper greatly improved the energy consumption of the structure without reducing its original self-centering ability. In addition, the energy was mainly dissipated by the open-close gap dampers. The energy consumption and damage of the structure itself were small, which creates the possibility for quick repair after the earthquake.
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Received: 06 April 2023
Published: 28 March 2024
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