Recent advances in research on fire-resistance of long-span spatial structures

The main progress in research on fire-resistance of long-span spatial structures in recent years is summarized and analyzed systematically in this paper.Firstly,temperature field of long-span spatial structures under fire conditions is presented,as well as the algorithm of steel member at elevated temperature in large space fire.Then,the behavior of materials and some kinds of long-span spatial structures under fire condition are illustrated in details.Furthermore,the performance-based design for the fire-resistance of long-span spatial structures and some applications are summarized.Finally,the remained problems and the key problems for further research are pointed out.