Field Study on Dynamic Properties of Tower-cable Coupling Systems including Hanging Jumper Beams

2. Response Properties under Not So Strong Winds

Abstract

Some basic data to predict wind responses of a tower-cable coupling system including hanging jumper beams are acquired by some excitation tests under calm as report No.1. However few investigations of the response based on the data measured under strong winds with an actual tower are reported. The authors try to comprehend the responses under strong winds. So this paper discusses the responses under light winds based on the some data measured at this time, which is a basic data to comprehend the responses under strong winds. As a result, it became evident that the cable vibrations had much effect on the oscillations of the tower and the hanging jumper beams and the effects of the cable vibrations on the both were different.