Abstract
Microwave lattice towers of heights up to about 100 m are constructed in large numbers for the requirement of an increasing network of electronic communication systems. Wind load, which is basically dynamic in nature, is the main design force for these free-standing lattice towers. The dynamic response of wind sensitive structures subjected to a random wind force can be computed using stochastic analysis. In this paper, a spectral approach for computation of the along-wind response and the gust response factor of microwave lattice towers is presented. A computer program has been developed for the calculation of the gust response factor, the along-wind response of lattice towers and wind characteristics using this spectral method. The gust response factor computed for a microwave lattice tower of 101 m height by this method is compared with the values calculated using the formulae recommended in the Indian, the Australian, the British and the ASCE Standards.
Published Version
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