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Steel and Composite Structures
  Volume 4, Number 1, February 2004 , pages 9-21

Reliability analysis of latticed steel towers against wind induced displacement
M.A. Khan, N.A. Siddiqui and H. Abbas

    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.
Key Words
    latticed tower; structural reliability; first order reliability method.
Department of Civil Engineering, Aligarh Muslim University, Aligarh 202002, India

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