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Nonlinear Behavior of Low-rise Steel Structures, subjected to Shifted and/or Separated Concentric Braces

Badali, Aref | 2017

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  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 49696 (53)
  4. University: Sharif University of Technology, International Campus, Kish Island
  5. Department: Science and Engineering
  6. Advisor(s): Mofid, Masood
  7. Abstract:
  8. Despite all the developments of construction industry, there are some limitations in this important industry. For example, one of the common limitations of buildings is restrictions of architectural designs that often rise due to location of lateral load-resisting systems of buildings and usually rise disagreement between structure and architecture engineers. The lateral load-resisting systems and location of them are very important, therefore, in this study we attempt to investigate the changes of their location in structure’s stories. Due to architectural restrictions, the removal and movement of lateral load-resisting systems have been done only in some stories or from a story to the next. In this thesis, the structure has been modelled in OpenSees software (3D) using some regular plans with 25m×15m dimensions (length and width), spans of 5m and story numbers of 7, 9, and 12. It is worth noting that these stories have similar applications and use common X braces and BOX sections in columns. Furthermore, nonlinear analyses and seismic design of structures have been done and structural behaviors of building such as behavior factor of structures, movements, incremental dynamic analysis (IDA) and its results, and fragility curves have been investigated to study seismic behavior of structures before and after movements
  9. Keywords:
  10. Pushover Analysis ; OpenSees Software ; Nonlinear Analysis ; Fragility Curve ; Incremental Dynamic Analysis ; Structure Behavior Coefficient ; Displacment Braces

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