斜張橋のケーブルプレストレスの一計算方法

抄録

The purpose of this paper is to present a practical computational method to determine cable prestresses of cable-stayed bridges.
In order to determine cable prestresses a cost function is introduced as the objective function instead of the compatibility condition to which no consideration need to be given. It is shown that the solution is easily obtained from an usual structural analysis of a statically-indeterminate system using modified cross sectional properties of members which depend on costs and allowable stresses of used materials.
A simple method to satifsy constraints which are introduced in order that the solution is acceptable for the design is also described.