隧道衬砌结构在火灾高温下的变形及力学行为研究

Study on the Deformation and Mechanical Behaviors of the Tunnel Lining Structure Induced by High Temperature in the Fire Scenario

隧道火灾过程中产生的高温会对衬砌结构造成严重破坏,影响衬砌结构的力学性能,从而降低衬砌结构的安全性。基于此,文章利用Ansys软件进行数值模拟,分析隧道衬砌结构在火灾高温下的变形及衬砌内部应力的分布规律。研究结果对隧道衬砌结构耐火性能设计有着重要意义。

The high temperature in a tunnel fire will cause serious damage to the lining structure and affect the mechanical behaviors of the lining structure,finally reducing the safety of the lining structure.In view of this,it analyzes the deformation and stress distribution in the tunnel lining structure under high temperature in course of a fire using the Ansys FEM software,which is of great significance to the fire resistance design of the tunnel lining structure.