Wind-Induced Coupling Vibration Effects of High-Voltage Transmission Tower-Line Systems
Table 12
Comparison of the stress at the top of the tower calculated by dynamic analysis in the tower-line system and by the quasi-static calculation for the corresponding single tower.
Wind speed
Distance from the tower bottom (m)
Element number
Axial compressive stress of the main members of the transmission tower (MPa)
TL
QS
m/s
0
3682
183.19
154.59
1.19
9
3273
154.57
128.84
1.20
15
2994
106.71
88.53
1.21
19.8
2991
152.40
126.47
1.21
23.4
2882
97.46
78.96
1.23
25.8
2880
115.32
92.15
1.25
m/s
0
3682
221.35
179.40
1.23
9
3273
187.72
150.63
1.25
15
2994
131.50
104.96
1.25
19.8
2991
185.81
148.35
1.25
23.4
2882
121.75
94.06
1.29
25.8
2880
145.17
109.63
1.32
m/s
0
3682
259.80
193.05
1.35
9
3273
222.67
162.63
1.37
15
2994
157.27
114.00
1.38
19.8
2991
222.00
160.40
1.38
23.4
2882
147.30
102.36
1.44
25.8
2880
177.26
119.25
1.49
m/s
0
3682
306.27
207.47
1.48
9
3273
262.84
175.31
1.50
15
2994
187.08
123.55
1.51
19.8
2991
262.94
173.13
1.52
23.4
2882
176.51
111.11
1.59
25.8
2880
214.15
129.40
1.65
m/s
0
3682
310.00
222.94
1.39
9
3273
265.24
188.91
1.40
15
2994
189.66
133.79
1.42
19.8
2991
263.83
186.79
1.41
23.4
2882
175.59
120.47
1.46
25.8
2880
206.87
140.27
1.47
m/s
0
3682
310.01
239.17
1.30
9
3273
276.54
203.18
1.36
15
2994
197.09
144.52
1.36
19.8
2991
276.08
201.12
1.37
23.4
2882
185.27
130.29
1.42
25.8
2880
225.51
151.67
1.49
m/s
0
3682
310.02
256.14
1.21
9
3273
288.76
218.12
1.32
15
2994
206.41
155.75
1.33
19.8
2991
288.17
216.12
1.33
23.4
2882
192.63
140.53
1.37
25.8
2880
232.08
163.58
1.42
m/s
0
3682
310.12
273.53
1.13
9
3273
310.05
233.45
1.33
15
2994
258.15
167.26
1.54
19.8
2991
310.03
231.52
1.34
23.4
2882
240.35
150.99
1.59
25.8
2880
289.32
175.70
1.65
m/s
0
3682
310.18
286.04
1.08
9
3273
310.11
244.57
1.27
15
2994
280.94
175.59
1.60
19.8
2991
310.07
242.66
1.28
23.4
2882
265.35
158.47
1.67
25.8
2880
304.39
184.38
1.65
m/s
0
3682
310.18
290.20
1.07
9
3273
310.11
261.25
1.19
15
2994
281.28
188.10
1.50
19.8
2991
310.07
259.40
1.20
23.4
2882
271.52
169.82
1.60
25.8
2880
307.75
197.60
1.56
m/s
0
3682
311.69
294.05
1.06
9
3273
310.74
284.45
1.09
15
2994
310.07
205.48
1.51
19.8
2991
310.47
282.72
1.10
23.4
2882
310.00
185.53
1.67
25.8
2880
304.34
215.91
1.41
Note. In the table, TL represents the dynamic calculation results for the tower in the tower-line system, and QS represents the quasi-static calculation results as stipulated by the design code for the corresponding single tower.
