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On the Dynamic Response of Funicular Shells and Evaluation of the Behavior Factor

Kadivar, Amin | 2010

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 40526 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Mofid, Masoud
  7. Abstract:
  8. Dynamic behavior of space structures are of great complexities. On the event of severe earthquake these structures exhibit high resistance and on the other hand, their high rigidity and small deformation makes it necessary to pay attention to their dynamic behavior, especially when combined with other types of structural systems. Also due to lack of sufficient codes and references, their dynamic behavior is still unknown to a great extend. Among these kinds of structures, reinforced concrete double curvature shells, and especially funicular shells, are much more important than others. In this thesis, dynamic response of these kind of structures, especially reinforced concrete domes, in nonlinear range has been investigated and the behavior factor and its constituting parameters for domes half plane angles of 45 and 90 degrees and funicular domes and diameter of 30, 45 and 60 meters has been derived by using the nonlinear static procedure, Push-over analysis. Two load patterns have been applied to the models, a vertical distribution proportional to the shape of fundamental mode in the horizontal direction and an adaptive load distribution that changes as the structure displaced, the selected target node is the node which has the most displacement due to these load patterns.


  9. Keywords:
  10. Strength Reduction Factor ; Pushover Analysis ; Funicular Shells ; Reinforced Concrete Dome ; Vibration Period

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