Influence on Strength of Slab Track Caused by Insulating Bushing and Epoxy Coating

摘要

The strength of slab track will be reduced when insulating bushing and epoxy coating are used. To make analysis on the bond strength between concrete and reinforcing bar, two-spring simulation and contact-element simulation are used. Research and comparison have been carried out on the mechanical characteristics of the slab track with and without insulating measures. The variation rules of bending moment, shear force and displacement have been generalized. Through calculation and analysis, the strength reduction of slab track can be obtained and reasonable suggestions are put forward.