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Title: Research on advanced analysis method of semi-rigid steel frames
Authors: Wei, L
Ganping, S
Chan, SL 
Keywords: Curved stability function element
Initial imperfect
Plastic hinge
Semi-rigid steel frames
The advanced analysis method
Issue Date: 2015
Publisher: Bentham Science Publishers B.V.
Source: Open construction and building technology journal, 2015, v. 9, no. 1, p. 12-16 How to cite?
Journal: Open Construction and Building Technology Journal 
Abstract: The advanced analysis method used to analysis semi-rigid steel frames is introduced, and the method could take account of many factors influencing structure mechanical performance, these factors including initial imperfect of structure and members, geometrical nonlinearity (P-Δ,P-δeffects), material nonlinearity and semi-rigid connections. The Curved Stability Function Element (CSF element) is built to taking account of initial imperfect, semi-rigid connections and plastic hinge, and derivate the second-order element stiffness matrix and extend the spatial element stiffness matrix. The nonlinearity behavior of semi-rigid connections and plastic hinge are simulated by the spring element. Judgment criterion of plastic hinge and spring stiffness values are determined, and structure failure criterion is defined. The three semi-rigid steel frames are directly analyzed by the program NIDA, and the results of NIDA are comparatively analysis with test results. It is indicated that the results of NIDA are in accordance with test results better, verifying validity and reliability of the advanced analysis method used to analysis semi-rigid steel frames.
ISSN: 1874-8368
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