Vol. 6, No. 1, pp. 567-577 (2010)
TOTAL INCREMENTAL ITERATIVE FORCE RECOVERY METHOD AND
THE APPLICATION IN PLASTIC HINGE ANALYSIS OF STEEL FRAMES
Fawu Wang 1,* and Yaopeng Liu 2
1 Department of Civil Engineering, Nanjing University of Aeronautics and Astronautics, Yudao Street, Nanjing, China
2 Department of Civil and Structural Engineering, The Hong Kong Polytechnic University, Hunghom, Kowloon, Hong Kong
*(Corresponding author: E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.)
Received: 15 January 2008; Revised: 15 February 2008; Accepted: 20 October 2008
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ABSTRACT
In this paper a total incremental iterative force recovery method suitable to plastic hinge analysis is proposed and it is found that this incremental iteration force recovery procedure has a convergence rate comparable to total secant method. The incremental force recovery manner makes this method be capable of recovering member internal forces and deformations correctly and conveniently in the existence of plastic hinge. The capability of the proposed total incremental iterative force recovery method to cope with plastic hinge is illustrated by two benchmark examples.
KEYWORDS
Nonlinear analysis; steel frames; force recovery procedure; plastic hinge
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