本文主要研究了普通计算模型在结构抗火设计中的应用。计算机模拟为评价承载的组合构件的耐火极限提供了新的可能性。通过三个例子证明了计算机模拟比传统的用抗火试验的方法来进行结构抗火设计要好很多。第一个例子阐述了用于组合柱抗火设计的新的设计表格的形成 ,第二个例子是关于新型薄板梁体系的应用 ,最后介绍了一种组合构件抗火设计的新方法 This paper mainly studies the application of common calculation model in structural fire resistance design. Computer simulations offer new possibilities for assessing the fire resistance of composite components that are carried. Three examples show that computer simulations are much better than traditional methods of fire resistance testing for structural fire resistance design. The first example illustrates the formation of a new design form for combined column fire resistance design. The second example relates to the application of the new sheet-metal beam system. Finally, a new fire-resistant design method for composite components is introduced