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Experimental and Analytical Studies on Hysteretic Behavior of Trapezoidally Corrugated Steel Shear Walls

Emami, Fereshteh | 2013

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  1. Type of Document: Ph.D. Dissertation
  2. Language: Farsi
  3. Document No: 44316 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Mofid, Masoud; Vafai, Abolhassan
  7. Abstract:
  8. Steel shear wall system has been used in recent years as the lateral-load resisting system in the design and retrofit of high-rise buildings. This system consists of infill shear panel is framed by surrounding steel frames. Infill shear panel can be applied in two types: stiffened or unstiffened. Considering to the previous studies, the stiffened type is more convenient in the seismic performance and utility condition. However, in the stiffened system, the construction cost is considerably higher because of the complicated construction details. This dissertation concentrates on the experimental and analytical studies of trapezoidally corrugated steel shear walls as an option for removing the problems of unstiffened steel shear walls. Therefore, a series of experimental studies were carried out on the half-scale, one-story, single-bay steel shear walls with unstiffened and trapezoidally corrugated panels. This experimental study was conducted to compare the hysteretic behavior of three different steel shear walls: unstiffened, trapezoidally vertical corrugated and trapezoidally horizontal corrugated. Gravity loads were not applied at the top of the walls and horizontal load was applied at the top of each specimen. The results reveal that although the ultimate strength of the unstiffened specimen larger compared to that of the corrugated specimens, energy dissipation capacity, ductility ratio and the initial stiffness of the corrugated specimens are larger compared to the unstiffened specimen. Furthermore, finite element analyses which include both material and geometric nonlinearities are employed for the examination. The results from finite element analyses are verified through tested specimen findings. The existing methods of analyzing unstiffened steel shear walls were also employed to evaluate the corrugated specimens. Although fairly good correlations were found between experimental and analytical studies in the initial stiffness and ultimate strength, more studies need to be carried out
  9. Keywords:
  10. Steel Plate Shear Wall (SPSW) ; Ductility ; Lateral Resistance ; Corrugated Plate ; Shear Buckling ; Quasi-Static Loading

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