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Earthquakes and Structures
  Volume 14, Number 1, February 2018 , pages 021-32

Pushover analysis of prefabricated structures with various partially fixity rates
Mehmet Akkose, Fezayil Sunca and Alperen Turkay

    Prefabricated structures are constructed by bolted connections of separated members. The design and analysis of these structures are generally performed by defining fully hinges for the connection of separated members at the joint of junction. In practice, these connections are not fully hinged. Therefore, the assumption of semi-rigid connections (restrained or partially fixity) instead of fully hinge connections is a more realistic approach for bolted connections used in the prefabricated elements. The aim of this study is to investigate the effects of semi-rigid connections on seismic performance of prefabricated structures. Nonlinear static analysis (pushover analysis) of a selected RC prefabricated structure is performed with SAP2000 structural analysis program by considering various partially fixity percentages for bolted connections. The target values of roof displacements obtained from the analyses according to ATC-40, FEMA-356, FEMA-440, and TEC-2007 codes are compared each other. The numerical results are given in tables and figures comparatively and discussed. The results show that the effects of semi-rigid connections should be considered in design and analysis of the prefabricated structures.
Key Words
    prefabricated structures; semi-rigid connections; nonlinear static pushover analysis
Mehmet Akkose: Department of Civil Engineering, Karadeniz Technical University, Trabzon, Turkey
Fezayil Sunca and Alperen Turkay: Department of Civil Engineering, Cumhuriyet University, Sivas, Turkey

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