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A Parametric Study on Seismic Behavior of Multi-Story Steel Frames Equipped with Yielding Elements Using FEM

Yarigarrvaesh, Mahdi Reza | 2012

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  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 42918 (53)
  4. University: Sharif University of Technology, International Campus, Kish Island
  5. Department: Science and Engineering
  6. Advisor(s): Mofid, Massoud
  7. Abstract:
  8. In this Thesis Project the Behavior of Multi-story Steel Frames Equipped with Yielding elements has been investigated and analyzed. These elements act against severe earthquakes like fuse and cause dissipation in main part of input energy of structure. The position of these elements are at the cross point of braces. The most advantages of yielding elements in steel frames are ease to use and ability to replace after earthquake The main idea in this research is the effect of number of stories in buildings which are equipped with yielding elements.3,7 and 10-story steel frames with 3 bays and 15,20 and 25-story steel frames with 5 bays are the models for this investigation. At the first part of this project the linear static analysis of these steel frames will be investigated. Next , the effect of four famous earthquakes for finding the seismic behavior of these systems will be discussed. The other target of this research is achieving the ratio of hysteresis energy to input energy of each model to find the ability of mentioned system to absorb energy Finally , because of importance of Response Modification Factor and Index of Ductility in multi-story steel frames ,it has been tried to reach precise values of them by Push Over analysis
  9. Keywords:
  10. Yielding Damper ; Nonlinear Static Analysis ; Hysteresis Energy ; Steel Brace

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