# Experimental Study on Ice Melting of Bridge Tower Crossbeams under Different Conditions
## 4 Conclusions  
In this study, we enhanced the temperature of a bridge beam structure using an electric heating method to achieve the effect of melting snow and melting ice. Considering factors such as the ambient temperature and wind speed, we conducted experimental research on the icing and de-icing of a concrete bridge tower bridge beam model with pre-buried carbon fiber heating line. The main conclusions are as follows:  
1. This paper proposes a method for melting snow and ice on bridge tower crossbeams with pre-buried carbon fiber hot wire, which is fast, accurate, stable, energy-saving, and efficient. 2. The ambient temperature and wind speed will affect beam icing. Decreasing the ambient temperature will increase the length of the icicles, whereas increasing the wind speed will increase the length and thickness of the icicles, thus exacerbating the potential threat. 3. The lower the ambient temperature, the higher the ice coverage on the side of the beam, and the higher the adhesion force, making it more difficult to melt the ice. The critical temperature of the bridge beam ice melt is influenced by the ambient temperature and  
Figure 18: Temperature–time variation curves at different wind speeds. (**a**) \(-5\)\({}^{\circ}\)C, 4.5 m/s. (**b**) \(-10\)\({}^{\circ}\)C, 4.5 m/s. (**c**) \(-15\)\({}^{\circ}\)C, 4.5 m/s. \begin{table}
\begin{tabular}{c c c c c c} \hline \hline \begin{tabular}{c} **Ambient** \\ **Temperature** \\ **(\({}^{\circ}\)C)** \\ \end{tabular} & \begin{tabular}{c} **Initial** \\ **Temperature** \\ **(\({}^{\circ}\)C)** \\ \end{tabular} & \begin{tabular}{c} **2 h** \\ **Temperature** \\ **Temperature** \\ **(\({}^{\circ}\)C)** \\ \end{tabular} & \begin{tabular}{c} **0-2 h** \\ **Temperature** \\ **(\({}^{\circ}\)C/h)** \\ \end{tabular} & \begin{tabular}{c} **6 h** \\ **Temperature** \\ **(\({}^{\circ}\)C/h)** \\ \end{tabular} & \
\begin{tabular}{c} **2-6 h** \\ **Temperature** \\ **Rise Rate** \\ \end{tabular} &
\begin{tabular}{c} **8 h** \\ **Temperature** \\ **(\({}^{\circ}\)C/h)** \\ \end{tabular} \\ \hline \(-5\) & \(-2.87\) & 15.99 & 4.72 & 19.03 & 1.52 & 20.28 \\ \(-10\) & \(-8.63\) & 8.8 & 4.36 & 11.88 & 1.54 & 13.36 \\ \(-15\) & 11.19 & 4.53 & 3.93 & 5.87 & 0.67 & 6.04 \\ \hline \hline \end{tabular}
\end{table} 
Table 8: Temperature rise test results for the average internal temperature of electrically heated crossbeam specimens at different wind speeds. wind speed; this is negatively correlated with the ambient temperature and positively correlated with the wind speed. 4. At an ambient temperature of \(-15\)\({}^{\circ}\)C and a wind speed of 4.5 m/s, the average internal temperature of the beam after heating and stabilization is 1.37 \({}^{\circ}\)C, which is higher than the average critical temperature of 1.31 \({}^{\circ}\)C for the beam to melt ice under this condition. This temperature is sufficient to melt ice, verifying the feasibility of this solution and is a reliable reference for the practical application of ice melting in bridge tower beams. This study has certain limitations, because this test was carried out in the laboratory, and only the factors of ambient temperature and wind speed were considered. In actual bridge engineering, there are many other environmental factors that have not been considered. For example, the influence of environmental humidity; different environmental humidity will affect the icing and deicing of bridge beams. Therefore, the results of this study only provided a theoretical basis for reference. In future work, we plan to add icing prevention tests to the bridge beam, i.e., operating carbon fiber heating wires before low-temperature rainfall, so that the surface temperature of the beam cannot be frozen. In addition, we plan to conduct numerical simulation analysis to de-icing tests on a bridge beam, as well as an ice prevention test. We also plan to add more environmental factors to enrich the content.