Nonlinear modelling and seismic behaviour of precast concrete structures with steel shear walls

  • Farhad Behnamfar Isfahan University of Technology, Esfahan, Iran https://orcid.org/0000-0002-4435-3540
  • Rafeek Artoonian Isfahan University of Technology, Esfahan, Iran
  • Mehdi Ghandil Isfahan University of Technology, Esfahan, Iran

Abstract

A new structural system consisting of precast concrete frames and steel shear walls (SSW's) is introduced and studied numerically in this paper. Two different models, first using ''exact'' FEM and second using approximate equivalent strip model (ESM), are utilized for analysis of such a system with nonlinear static (pushover) procedure. In the FEM model use is made of shell elements while the ESM benefits from simple links that replace the wall panels in the model and are oriented such that they work in tension. Because of good agreement observed between the results of the models in smaller structures, for taller buildings only the ESM approach is followed where computationally applying the FEM approach is impractical. The lateral behaviour of the systems under consideration is investigated with regard to parameters such as number of stories and beam-column connection type. As a result, the ductility, overstrength and response modification factors are calculated for this new structural system as quantities required for their practical design.

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Published
2016-12-31
How to Cite
Behnamfar, F., Artoonian, R., & Ghandil, M. (2016). Nonlinear modelling and seismic behaviour of precast concrete structures with steel shear walls. Bulletin of the New Zealand Society for Earthquake Engineering, 49(4), 293-304. https://doi.org/10.5459/bnzsee.49.4.293-304
Section
Articles