Wind-Induced Coupling Vibration Effects of High-Voltage Transmission Tower-Line Systems

Table 10

Comparison of the dynamic stress results of the main members of the transmission tower in the tower-line system with the corresponding single tower under a wind speed of  m/s.

Element number	Stress of transmission tower members (MPa)
	Maximum value			Average			Root mean square
	TL	ST	TL/ST	TL	ST	TL/ST	TL	ST	TL/ST
3682	−310	−78.6	3.9	−246	−55	4.5	15.1	3.3	4.6
3800	251	30.5	8.2	187	27	6.9	15.7	2.9	5.4
3860	−310	−70.5	4.4	−306	−49	6.2	6.7	3.0	2.2
3944	167	41	4.1	113	10	11.3	11.2	3.2	3.5

Note. In the table, TL represents the response value of the transmission tower in the tower-line system, and ST represents the response value of the corresponding single tower. The minus sign stands for the compressive stress.