The mass of the entire cable model was measured as 66.0 kg. The cable was suspended by springs at both ends in the transverse direction and by a steel wire in the longitudinal direction as shown in Fig. 1(b). The springs were mounted on a firm steel frame, which was fixed on the ground. The springs were away from the test segment and thus didn׳t affect the wind condition of the cable, enabling the cable to vibrate freely in the horizontal and vertical directions. The test segment was placed at the outlet of the wind tunnel. The cable model was installed with an inclination angle α of 32° and a yaw angle β of 35° ( Fig. 1(a)). The relative yaw angle is calculated as View the MathML source, which represents the angle between the wind direction and the cable axis.