Research on advanced analysis method of semi-rigid steel frames

Liu Wei, Shu Ganping, Chan Siulai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

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.
Original languageEnglish
Pages (from-to)12-16
Number of pages5
JournalOpen Construction and Building Technology Journal
Volume9
Issue number1
Publication statusPublished - 1 Jan 2015

Keywords

  • Curved stability function element
  • Initial imperfect
  • Plastic hinge
  • Semi-rigid steel frames
  • The advanced analysis method

ASJC Scopus subject areas

  • Building and Construction

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