Parametric Study of Tuned Mass Dampers for Long Span Transmission Tower-Line System under Wind Loads

Table 3

Vibration reduction ratio of TMD with different sag-span ratio (%).

Response	Line sag (m)	Sag-span ratio	Wind angle of 90°	Wind angle of 0°
Axial force	50	0.045	19.6	29.7
	55	0.049	17.2	28.3
	60	0.054	19.1	30.1
Displacement	50	0.045	4.2	5.7
	55	0.049	3.8	6.2
	60	0.054	4.6	5.6
Acceleration	50	0.045	46.1	60.1
	55	0.049	50.2	61.3
	60	0.054	45.6	63.4