Volume 05,Issue 01

Numerical Study on Ductility and Energy Dissipation of High-rise Composite Shear Walls

Authors

Amirhoshang Akhaveissy, Kambiz Daneshvar, Morteza Amooie, Dina Ghazi-Nader

Abstract
Shear walls are used in buildings as a lateral load resisting system. In recent years, research on seismic behavior of composite steel-concrete shear walls has increased. The seismic behavior of shear walls is characterized by strength, ductility, and energy dissipation capacity. The objective of this study is to investigate the effect of some parameters including the height of the wall, compressive strength of concrete and reinforcement ratio on ductility and energy dissipation of composite shear walls. To do so, twelve specimens of high-rise composite shear walls under cyclic loading have been modeled. Finite element method has been carried out via OpenSees software to simulate shear walls. The results indicate that Concrete compressive strength and height of the wall have no significant effect on the ductility of composite shear walls, and increasing the reinforcement ratio reduces the ductility. In addition, it is observed that increasing the reinforcement ratio and height of shear wall increases energy dissipation, and the effect of concrete strength on increasing the energy dissipation of the wall is very low. The effect of reinforcement ratio on energy dissipation is greater than that of ductility.

Keyword: Composite shear walls, Ductility, Energy dissipation, Finite element analysis, OpenSees.

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