论文部分内容阅读
虽然钢材自身不燃,但钢结构的耐火极限却很低,这是因为当钢材的温度达到一定临界值时,其强度急剧下降,载荷能力减弱。 所谓钢结构的防火措施就是给钢构件提供一层适用于吸热或绝热的材料。这些材料在火中将起到延迟钢构件温升的作用。 为钢构件提供绝热的传统方法可以分为下述几类:
Although the steel itself is not flammable, the fire resistance limit of the steel structure is very low. This is because when the temperature of the steel reaches a certain critical value, its strength decreases sharply and the load capacity decreases. The so-called fire protection measures for steel structures are to provide steel components with a layer of material suitable for heat absorption or thermal insulation. These materials will play a role in delaying the temperature rise of the steel components in the fire. The traditional methods of providing insulation for steel components can be divided into the following categories: