Discussion. Wind-Excited Oscillations of Structures.

Abstract

Fox & Partners) remarked on a point which had always seemed a little strange. A smooth cylindrical object was prevented from oscillating in the wind by the addition of helical fins, whereas an object of helical construction, such as a stranded rope, had smooth tape wrapped round it to stop it oscillating. 85. The Forth tower oscillated in an apparently alarming and dangerous manner, but it was not at all dangerous. The connexions between the sections of the tower were made with longitudinal high-tensile bolts of waisted section about 3 ft long, which when overstressed could stretch several inches without any danger of fracture.