Ordinary non-tempered glass is one of the most widely used materials in the construction industry. Knowing its fire resistance is essential to ensure the safety of emergency personnel as its failure increases the oxygen supply and causes a rapid spread of the fire (flashover phenomenon). Existing approaches for evaluating the structural fire safety of glass façades require expensive experimental tests and/or extensive knowledge of Finite Element modeling. This paper provides a simplified, rational, and reliable approach to assess the structural capacity of ordinary glass panels during fire exposure. A simplified method is developed to predict the temperature difference between the edge and the center of the glass panel. Afterward, a method, based on strain-equilibrium, is developed to predict the corresponding maximum thermal stress. The developed methods are validated by comparisons with experimental work by others.

普通非钢化玻璃是建筑行业中使用最广泛的材料之一。知道其耐火性对于确保急救人员的安全至关重要，因为其故障会增加氧气供应并引起火势迅速蔓延（闪络现象）。现有的评估玻璃幕墙结构防火安全性的方法需要昂贵的实验测试和/或对有限元建模的广泛了解。本文提供了一种简化，合理，可靠的方法来评估普通玻璃板在火灾中的结构能力。开发了一种简化的方法来预测玻璃面板的边缘和中心之间的温度差。之后，开发了一种基于应变平衡的方法来预测相应的最大热应力。