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Steel and Composite Structures
  Volume 37, Number 1, October10 2020, pages 91-98

Seismic behavior investigation of the steel multi-story moment frames with steel plate shear walls
Iman Mansouri, Ali Arabzadeh, Alireza Farzampour and Jong Wan Hu

    Steel plate shear walls are recently used as efficient seismic lateral resisting systems. These lateral resistant structures are implemented to provide more strength, stiffness and ductility in limited space areas. In this study, the seismic behavior of the multi-story steel frames with steel plate shear walls are investigated for buildings with 4, 8, 12 and 16 stories using verified computational modeling platforms. Different number of steel moment bays with distinctive lengths are investigated to effectively determine the deflection amplification factor for low-rise and high-rise structures. Results showed that the dissipated energy in moment frames with steel plates are significantly related to the inside panel. It is shown that more than 50% of the dissipated energy under various ground motions is dissipated by the panel itself, and increasing the steel plate length leads to higher energy dissipation capability. The deflection amplification factor is studied in details for various verified parametric cases, and it is concluded that for a typical multi-story moment frame with steel plate shear walls, the amplification factor is 4.93 which is less than the recommended conservative values in the design codes. It is shown that the deflection amplification factor decreases if the height of the building increases, for which the frames with more than six stories would have less recommended deflection amplification factor. In addition, increasing the number of bays or decreasing the steel plate shear wall length leads to a reduction of the deflection amplification factor.
Key Words
    steel plate shear wall; deflection amplification factor (cd); moment frame; multi-story buildings; hysteretic behavior
Iman Mansouri: Department of Civil Engineering, Birjand University of Technology, Birjand, Iran;
Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam
Ali Arabzadeh: Department of Civil Engineering, Higher Education Complex of Hormozan, Birjand, Iran
Alireza Farzampour: Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, United States
Jong Wan Hu: Department of Civil and Environmental Engineering, Incheon National University, Incheon 22012, South Korea;
Incheon Disaster Prevention Research Center, Incheon National University, Incheon 22012, South Korea


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