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References (15)
-
(1974)
Effective lengths of columns in multistory buildings -
(1988)
Effective length factors for columns in braced frames -
(1999)
Historical note on K-factor equations -
R. Bridge, D. Fraser (1987)
Improved G‐Factor Method For Evaluating Effective Lengths of ColumnsJournal of Structural Engineering-asce, 113
-
J. Hellesland, R. Bjorhovde (1996)
Closure of "Restraint Demand Factors and Effective Lengths of Braced Columns"Journal of Structural Engineering-asce, 124
-
(1996)
“ Discussion of ‘ buckling analysis of one - story frames ’ by A . Zweig and H . Kahn ” -
(1994)
Stability of Steel Structures, Theory and Application, Science publishing house, Beijing -
H. Essa (1998)
Effective length factor of columns in semirigid and unbraced framesJournal of Structural Engineering-asce, 124
-
J. Yura (1971)
The effective length of columns in Unbraced frames, 8
-
L. Duan, Wai-Fah Chen (1988)
Effective Length Factor for Columns in Unbraced FramesJournal of Structural Engineering-asce, 115
-
A. Zweig, A. Kahn (1968)
Buckling Analysis of One-Story FramesJournal of the Structural Division, 94
-
(1999)
MS. candidate in Department of Civil Engineering at Zhejiang University. He received his B.E -
(1992)
Analysis and Design of Highrise Structures, Press of Polytechnic University of Southern China, Guanzhou -
J. Hellesland, R. Bjorhovde (1996)
Improved Frame Stability Analysis with Effective LengthsJournal of Structural Engineering-asce, 122
-
Asce (1997)
Effective Length and Notional Load Approaches for Assessing Frame Stability : Implications for American Steel Design
- Publisher
- SAGE
- Copyright
- © 2004 SAGE Publications
- ISSN
- 1369-4332
- eISSN
- 2048-4011
- DOI
- 10.1260/1369433042863279
- Publisher site
- See Article on Publisher Site
Abstract
Through an analysis of a simple two-story frame, this paper revealed that the assumptions used in conventional effective length method led to an unrealistic distribution of beam restraints among the connected columns. With three assumptions of the conventional approach discarded, a new approach is proposed by which column effective length considering inter-story interaction can be obtained in unbraced two- or three-story frames. A quadratic equation for two-story frames and a cubic equation for three-story frames are derived from which the rotational restraints provided to each column may be solved and the effective length factors can then be determined by the traditional formula or tables. For frames of more than 3 stories, the weakest story is selected and a three-story sub-assemblage including the weakest column is taken out, and the proposed method is applied, the effective length of the weakest column is thus obtained, the effective length of the remaining columns are computed through a predefined relations. Because the sub-assemblage included beams at far ends of the columns above and below the column under consideration, the far end condition (hinged or fixed) may be considered easily.
Journal
Advances in Structural Engineering – SAGE
Published: Oct 1, 2004