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Introduction OF Coupling Panels in Steel Plate Shear Walls and Optimized Design Method

Sadeghi Eshkevari, Soheil | 2016

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 48313 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Mofid, Massood; Mohtasham Dolatshahi, Kiarash
  7. Abstract:
  8. Coupling beams have had a widespread application as performance enhancing devices within concrete structures and more recently, also in steel structures. However, the conventional coupling beams are not so efficient in coupling distant walls. In this paper, a novel form of coupling members, namely, Coupling Panels is proposed and then, the application for a nine-storey building is investigated. Coupling panels are steel plate shear walls which are exerted in the intermediate spans between adjacent shear walls, and act as a mega coupling beam. First, a verified finite element model is constructed to demonstrate coupling panel behavior along with its global structural mechanism. Subsequently, a nine story building is designed and retrofitted as a new and existing building, using coupling panels. Moreover, an innovative optimization algorithm is proposed in order to achieve the best plate configuration to improve the structural performance using Nonlinear Static Analysis, Modal Pushover Analysis and Time History Analysis, and corresponding results are compared. In summary, it is shown that coupling panels can considerably control structural deformation demands toward a uniform pattern and reduce demands of main shear walls. The optimized design method also leads to a more economical design in comparison with force-based design approaches
  9. Keywords:
  10. Steel Plate Shear Wall (SPSW) ; Optimization ; Finite Element Method ; Nonlinear Static Analysis ; Nonlinear Time History Analysis ; Performance Based Design ; Passive Control ; Modal Pushover ; Coupling Panele ; Coupling Beam

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