OPTIMUM DESIGN OF PRESTRESSED CONCRETE TRANSMISSION POLES
OPTIMUM DESIGN OF PRESTRESSED CONCRETE TRANSMISSION POLES
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Date
1994-05
Authors
UGA, BITRUS WUYANA
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Abstract
The minimum weight design problems for three different crosssectional
shapes of prestressed concrete transmission poles
subject to stress displacement and buckling load restrictions
is attempted. The poles are idealized using the class one
prestressed conctrete equations. The optimization technique
employed for the solution procedure utilizes the variable
metric method by Davidon-Fletcher-Powell for unconstrained
minimization and cubic interpolation method of one dimensional
search, based on the interior penalty function method. It is
a mathematical programming approach involving gradient based
method. Partial derivatives are computed using a finite
diference technique. The cross-sectional dimensions and tendon
wires are used as design variables. Off-design charts have
been obtained by performing sensitivity analysis about the
final optimum design point. Numerical results for the three
cross-sectional shapes considered are presented along with
flow-charts, computer programs and program outputs
Description
A THESIS SUBMITTED TO THE POSTGRADUATE
SCHOOL, AHMADU BELLO UNIVERSITY, IN
PARTIAL FULFILLMENT OF THE REQUIREMENTS
FOR THE DEGREE OF
MASTER OF SCIENCE(STRUCTURAL ENGINEERING)
DEPARTMENT OF CIVIL ENGINEERING
FACULTY OF ENGINEERING
AHMADU BELLO UNIVERSITY
ZARIA
MAY, 1994
Keywords
OPTIMUM DESIGN,, PRESTRESSED,, CONCRETE,, TRANSMISSION,, POLES