AN ANALYTICAL AND EXPERIMENTAL APPROACH FOR IMPROVED STIFFNESS MATRIX OF BARS WITH SHEAR AND WIDE SUPPORT EFFECTS
Abstract
In
this study, frames including both the shear and the wide support effect was
examined analytically, numerically and experimentally. Stiffness method was
used for analytical solution and finite element method was used for numerical
solution. Explicit expressions for the stiffness matrix that includes both the
shear effect and the wide support effect are presented. A model frame was
tested experimentally, and a maximum deflection result was obtained. The same
frame was modeled and solved with the finite element method and with the
proposed method. The results of three methods were compared. The proposed
method was verified successfully. The proposed method, which includes both the
shear and wide support effects, produced results that were shown to be closer
to the experimental results and the results than were the results of the other
models that were investigated.
Keywords
shear effect,wide support effect,rigid end zone,stiffness matrix
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