Adopting flexibility of the end-plate connections in steel moment frames

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Title: Adopting flexibility of the end-plate connections in steel moment frames
Authors: Ghassemieh, M.
Baei, Mahmoud
Kari, Amir
Goudarzi, A.
Laefer, Debra F.
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Date: May-2015
Abstract: The majority of connections in moment resisting frames are considered as being fully-rigid. Consequently, the real behavior of the connection, which has some level of flexibility, is ignored. This may result in inaccurate predictions of structural response. This study investigates the influence of flexibility of the extended end-plate connections in the steel moment frames. This is done at two levels. First, the actual microbehavior of extended end-plate moment connections is explored with respect to joint flexibility. Then, the macro-behavior of frames with end-plate moment connections is investigated using modal, nonlinear static pushover and incremental dynamic analyses. In all models, the P-Delta effects along with material and geometrical nonlinearities were included in the analyses. Results revealed considerable difference between the behavior of the structural frame with connections modeled as fully-rigid and those when flexibility was incorporated regarding to natural periods, strength and maximum inter-story drift angle.
Type of material: Journal Article
Publisher: Techno-Press
Journal: Steel and Composite Structures
Volume: 18
Issue: 5
Start page: 1215
End page: 1237
Keywords: Extended end-plate moment connectionFlexibilityModal analysisPushover analysisIncremental dynamic analysis
DOI: 10.12989/scs.2015.18.5.1215
Language: en
Status of Item: Peer reviewed
Appears in Collections:Civil Engineering Research Collection

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