LI Zhong-you, LIU Yuan-xue, LIU Shu-lin, et al. Theoretical analysis model of deformation behavior of tunnel linings subjected to fire load[J]. 2012, 33(S2).
LI Zhong-you, LIU Yuan-xue, LIU Shu-lin, et al. Theoretical analysis model of deformation behavior of tunnel linings subjected to fire load[J]. 2012, 33(S2).DOI:
Tunnel fire accidents can lead to the damage of inner structure and the degradation of mechanical properties of lining materials; and then cause the increase of deformation of tunnel linings which are danger to the safety of tunnel structures. Based on the theory of geometric and material nonlinearity
a theoretical analysis model of linings deformation of tunnel subjected to fire load is presented. In the model
the influences of thermal damage and thermal expansion are taken into account. In a example
the analytical solution of cross-section slope and radial deflection of tunnel lining subjected to fire load is presented. The influence of fire duration on the deformation of lining is analysed
which can provide the theory basis to practice engineering.