Abstract
The present study aims at the reliability analysis of steel towers against the limit state of
deflection. For this purpose tip deflection of the tower has been obtained after carrying out the dynamic
analysis of the tower using modal method. This tip deflection is employed for subsequent reliability analysis.
A limit state function based on serviceability criterion of deflection is derived in terms of random variables. A
complete procedure of reliability computation is then presented. To study the influence of various random
variables on tower reliability, sensitivity analysis has been carried out. Design points, important for
probabilistic design of towers, are also located on the failure surface. Some parametric studies have also been
included to obtain the results of academic and field interest. The present study aims at the reliability analysis of steel towers against the limit state of
deflection. For this purpose tip deflection of the tower has been obtained after carrying out the dynamic
analysis of the tower using modal method. This tip deflection is employed for subsequent reliability analysis.
A limit state function based on serviceability criterion of deflection is derived in terms of random variables. A
complete procedure of reliability computation is then presented. To study the influence of various random
variables on tower reliability, sensitivity analysis has been carried out. Design points, important for
probabilistic design of towers, are also located on the failure surface. Some parametric studies have also been
included to obtain the results of academic and field interest. KCI Citation Count: 2