Abstract
Electrical heating is an innovative method of preventing icing of bridge decks during winter. Turning on the heating system before snowfall to prevent the icing of the bridge deck is more advantageous than melting already-formed ice. This article analyzes the heat-transfer performance of a bridge deck with heating cables during preheating before snowfall and predicts the preheating time of the bridge deck. Firstly, the temperature rise law and the state of the bridge deck with heating cables were studied through field experiments. Subsequently, a numerical model was developed. The effects of four factors on the heat-transfer performance of the bridge deck were analyzed. Finally, a bridge deck preheating-time model was established based on a multilayer perceptron regressor. This study enriches the application of neural networks and numerical simulations in preventing ice formation using the electrical heating method and is important for optimizing the heating system scheme and saving energy.
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