Concrete Filled Double Steel Plate Shear Wall Response Modification Factor

Document Type : Original Article


1 Assistant Professor, Faculty of Engineering, University of Mohaghegh Ardabili, Ardabil, Iran

2 Assistant Professor Department of Civil Engineering - University of Mohaghegh Ardabili

3 Student


Composite steel shear wall is a newest seismic resistant system that has a high stiffness, strength and ductility. The main advantages of this structural system are lower thickness and weight, don’t need to reinforcement and its easy implementation procedure with compared to concrete reinforced shear walls. Recently, the behavior of various types of this seismic resistant system has been investigated through numerical or experimental studies. Response modification factor, over-strength factor and deflection amplification factor are the most important parameters for analysis and design of any seismic resistant system. The response modification factor of concrete filled double steel plate shear wall (CFDSPSW) is determined in this paper. For this purpose, an eight-story building with two ratios of wall length to wall heights (1.5 and 2) are designed with CFDSPSW system. To investigation the effect of the concrete core thickness, three different thickness (50, 125, 200mm) is considered. The finite-element model of all cases is developed using ABAQUS software and the combination of nonlinear static pushover; nonlinear incremental dynamic and linear dynamic analyses are used for calculation of the response modification factor. The results are shown that the enhancement in the concrete core thickness lead to increasing ductility and decreasing force reduction factor. The over-strength factor and response modification factor are obtained respectively 1.76 and 6.47 for this seismic resistant structural system.


Main Subjects

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