Journal of Structural and Construction Engineering

Journal of Structural and Construction Engineering

Determining the appropriate thickness of the concrete panel to optimize the seismic behavior of the composite shear wall system

Document Type : Original Article

Authors
1 M.Sc. of Structural Engineering, Civil Engineering Department, School of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
2 Professor, of Structural Engineering, School of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
Abstract
The concrete-encased steel plate shear wall is one of the lateral load-bearing systems in high-rise buildings. This system has been developed to prevent buckling of the steel plate before yielding in shear. In this research, through numerical modeling in the Abaqus software environment and validating the results with experimental data, the optimal thickness of the concrete panel in the composite shear wall under cyclic loading was determined. Three main parameters, including the thickness of the steel plate, the height-to-width ratio of the system, and the shear stud spacing, were considered as key variables. The main assumptions of the models included the placement of the concrete panel on both sides of the steel plate and the introduction of a gap between the boundary elements and the concrete panel, which were considered in all analyses. Furthermore, a mathematical relationship was presented to predict the optimal thickness of the concrete panel based on the system parameters, which can be used in various design conditions. According to the results of this study, the thickness of the concrete panel decreases with the reduction of the system’s height-to-width ratio. For a 10-mm steel plate and shear stud spacing of 500 mm, the optimal thickness of the concrete panel was calculated to be 110 mm and 80 mm for height-to-width ratios of 1 and 0.5, respectively. Additionally, by reducing the shear stud spacing to 250 mm, an 80-mm thickness was recognized as optimal for all conditions. This relationship shows that the code-recommended thicknesses are up to 30% conservative
Keywords

Subjects


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  • Receive Date 23 August 2024
  • Revise Date 08 October 2024
  • Accept Date 28 October 2024