Analytical study on wind-induced vibration of power transmission towers

This paper describes a method for analyzing wind-induced vibrations of powe r transmission towers coupled with power lines and the results of two case studies. It also discusses the influence on response characteristics of dif ferences in transmission support systems and differences between peak facto rs, computed from a time -series and from power spectrum density. The resul ts of this study show that differences in the way power transmission towers support power lines have an influence on response characteristics, and pea k factors computed from a time-series response are greater than those compu ted from power spectrum density. (C) 1999 Elsevier Science Ltd. All rights reserved.