Influence of Seismic and Vibrodynamic Loads on Aerial Optical Fibre Communication Lines

This article presents the results of calculations of joint oscillations of optical cables suspended on cantilever supports. Supports are considered as beams rigidly fixed or having mixed boundary conditions at the anchor points subjected to transverse vibrations during earthquakes. After calculating the response of the entire system to seismic impact in the form of longitudinal displacement, velocity and acceleration at all anchor points, the limiting displacements and accelerations at the anchor points of optical fibre cables under different boundary conditions at the upper anchor point affecting the tension and vibrations of the optical fibre cable are found.