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http://dx.doi.org/10.7734/COSEIK.2014.27.6.663

Analytical Models of Beam-Column joints in a Unit Modular Frame  

Choi, Kyung-Suk (Department of Architectural Engineering, University of Seoul)
Kim, Hyung-Joon (Department of Architectural Engineering, University of Seoul)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.27, no.6, 2014 , pp. 663-672 More about this Journal
Abstract
Recently, modular structural systems have been applicable to building construction since they can significantly reduce building construction time. They consists of several unit modular frames of which each beam-column joint employs an access hole for connecting unit modular frames. Their structural design is usually carried out under the assumption that their load-carrying mechanism is similar to that of a traditional steel moment-resisting system. In order to obtain the validation of this assumption, the cyclic characteristics of beam-column joints in a unit modular frame should be investigate. This study carried out finite element analyses(FEM) of unit modular frames to investigate the cyclic behavior of beam-column joints with the structural influence of access holes. Analysis results show that the unit modular frames present stable cyclic response with large deformation capacities and their joints are classified into partial moment connections. Also, this study develops a simple spring model for earthquake nonlinear analyses and suggests the Ramberg-Osgood hysteretic rule to capture the cyclic response of unit modular frames.
Keywords
unit modular frame; steel moment connection; nonlinear analytical model; moment-rotation relation;
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Times Cited By KSCI : 1  (Citation Analysis)
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