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Earthquakes and Structures
  Volume 12, Number 2, February 2017, pages 191-200
DOI: http://dx.doi.org/10.12989/eas.2017.12.2.191
 


Nonlinear static and dynamic behavior of reinforced concrete steel-braced frames
Reyhaneh Eskandari, Davoud Vafaei, Javid Vafaei and Mohammad Ebrahim Shemshadian

 
Abstract
    In this paper, the seismic performance of reinforced concrete braced frames (RC-BF) under far- and near-fault motions was investigated. Four-, eight-, 12- and 16-story RC-BFs were designed on the basis of a code-design method for a high risk seismic zone. Nonlinear static and dynamic analyses of the frames have been performed using OpenSees software. To consider diverse characteristics of near-fault motions, records with forward-directivity and fling-step effects were employed. From the results obtained in the analytical study it is concluded that the used design method was reasonable and the mean maximum drift of the frames under all ground motion sets were in acceptable range. For intermediate- and high-rise buildings the near-fault motions imposed higher demands than far-faults.
 
Key Words
    reinforced concrete; steel-brace; dual system; nonlinear analysis; far- and near-fault motions
 
Address
Reyhaneh Eskandari, Davoud Vafaei: Department of Civil Engineering, Chabahar Maritime University, Chabahar, Iran

Javid Vafaei: Department of Civil and Environmental Engineering, Amirkabir University of Technology, Tehran, Iran

Mohammad Ebrahim Shemshadian: Department of Civil, Environmental, and Geo-Engineering, University of Minnesota (Twin Cities), Minneapolis, USA
 

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