## 3 Numerical Calculation Results and Analysis
### Impact of the Antenna Arrangement Layers on the Wind Load of Telecommunication Towers
In order to further analyze the impact of the antenna arrangement layers on the wind load of the telecommunication tower, the maximum values of wind loads for all wind directions were used to eliminate the influence of wind direction, as shown in Figure 26.  
The values of the drag coefficient and the windward base overturning moment coefficient are very close to those of the overturning force coefficient and the overturning moment coefficient. With the increase in the antenna arrangement layers, the lateral force coefficient and the crosswind base overturning moment coefficient of the telecommunication tower gradually increase. Moreover, the rate of increase in both coefficients with antenna arrangement layers is significantly influenced by the antenna arrangement number per layer, with the highest rate of increase when four antennas are arranged per layer, and the lowest when six antennas are arranged per layer. Figure 23: Variation curve of crosswind base overturning moment coefficient of telecommunication tower with antenna arrangement layers. (**a**) Three antennas per layer. (**b**) Four antennas per layer. (**c**) Five antennas per layer. (**d**) Six antennas per layer. The overturning force coefficient of the telecommunication tower increases approximately linearly with the increase in antenna arrangement layers, showing good consistency. Furthermore, the greater the antenna arrangement number per layer, the higher the rate of increase in the overturning force coefficient with antenna arrangement layers. Specifically, when four antennas are arranged per layer, the growth rate of the telecommunication tower's overturning force coefficient with antenna arrangement layers is significantly higher than the case with three antennas per layer, but the difference narrows significantly compared to the cases with five or six antennas per layer. As the antenna arrangement layers increase, the overturning moment coefficient of the tower also gradually increases, but the rate of increase gradually decreases. Similar to the overturning force coefficient, the rate of increase in the tower's overturning moment coefficient with the antenna arrangement layers is significantly higher when four antennas are arranged per layer compared to the case with three antennas per layer, but the gap narrows significantly when compared to cases with five and six antennas per layer. Figure 24: Variation curve of overturning force coefficient of telecommunication tower with antenna arrangement layers. (**a**) Three antennas per layer. (**b**) Four antennas per layer. (**c**) Five antennas per layer. (**d**) Six antennas per layer. Figure 27 shows the flow field around the telecommunication tower when six antennas are arranged per layer, with antenna arrangement layers varying from one to three. The figure reveals that the interference effect between antennas arranged on different layers is weak, which explains why the overturning force coefficient approximately exhibits a linear increase with antenna arrangement layers. Calculation Method for Wind Load on Telecommunication Towers Considering Antenna Arrangement Parameters  
Through a three-dimensional numerical simulation, the overturning force coefficient \(C_{F}\) and overturning moment coefficient \(C_{M}\) of the telecommunication tower were obtained for each condition. The maximum values of the telecommunication tower's overturning force coefficient \(C_{Fmax}\) and the overturning moment coefficient \(C_{Mmax}\) under all wind directions (\(\alpha\) = 0\({}^{\circ}\) to 180\({}^{\circ}\)) were determined, as shown in Figure 17:0  
Figure 17:1 Variation curve of overturning moment coefficient of telecommunication tower with antenna arrangement layers. (**a**) Three antennas per layer. (**b**) Four antennas per layer. (**c**) Five antennas per layer. (**d**) Six antennas per layer. Figure 17:2 Influence of the antenna arrangement layers on the wind load of the telecommunication tower. (**a**) Drag coefficient. (**b**) Windward base overturning moment coefficient.