Cost Function Analysis At The Structural Optimization Of Steel Frames
Author(s)
L. Pavlovčič, A. Krajnc & D. Beg
Abstract
Cost function analysis at the structural
optimization of steel frames
L. ~ a v l o v ~ i ~ ' , A. ~rajnc' & D. ~ e ~ '
' ~ a c u l t ~ of Civil and GeodeticEnginsering,
University of Ljubljana, Slovenia.
2 Ainet design of3ce, Slovenia.
Abstract
An objective function used at the structural optimization should be formulated in
such way that the most economic solution can be found. However, the objective
function is usually simplified to represent the weight of the structure,
disregarding the fabrication and erection costs of the structure. The aim of the
paper is to present the developed objective function as a cost function dealing
with the self-manufacturing costs of the whole structure. The cost function
includes all essential fabrication and erection activities. It is formulated in an
open manner, offering users the possibility to define their own parameters on the
basis of a certain production line. The cost Eunction is implemented into the
optimization system for planar steel frames.
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