Comparison of nonlinear behavior of steel moment frames accompanied with RC shear walls or steel bracings

Esmaeili, H ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1002/tal.751
  3. Publisher: 2013
  4. Abstract:
  5. In this paper, the seismic behavior of dual structural systems in forms of steel moment-resisting frames accompanied with reinforced concrete shear walls and steel moment-resisting frames accompanied with concentrically braced frames, have been studied. The nonlinear behavior of the mentioned structural systems has been evaluated as, in earthquakes, structures usually enter into an inelastic behavior stage and, hence, the applied energy to the structures will be dissipated. As a result, some parameters such as ductility factor of structure (μ), over-strength factor (Rs) and response modification factor (R) for the mentioned structures have been under assessment. To achieve these objectives, 30-story buildings containing such structural systems were used to perform the pushover analyses having different load patterns. Analytical results show that the steel moment-resisting frames accompanied with reinforced concrete shear walls system has higher ductility and response modification factor than the other one, and so, it is observed to achieve suitable seismic performance; using the first system can have more advantages than the second one
  6. Keywords:
  7. Dual system ; Shear wall ; Concentrically braced frames ; Dual system ; Reinforced concrete shear walls ; Response modification factors ; Seismic behavior ; Steel bracing ; Steel moment frames ; Steel moment resisting frame ; Concretes ; Ductility ; Reinforced concrete ; Seismic response ; Shear walls ; Seismic design
  8. Source: Structural Design of Tall and Special Buildings ; Volume 22, Issue 14 , 2013 , Pages 1062-1074 ; 15417794 (ISSN)
  9. URL: http://onlinelibrary.wiley.com/doi/10.1002/tal.751/abstract