STRUCTURAL DUCT BEARING SYSTEM

摘要

The present invention relates to a duct bearing system, more specifically to a structural duct bearing system for specific use in tunnels, and aims at solving the problems and difficulties that arise when using traditional methods for mounting duct bearing structures in tunnels. The system is modular and essentially comprises a stay or beam made of a hollow structural section with a round cross-section secured to the tunnel wall or a trapezoidal bearing structure fastened by screws, said hollow structural section stay or beam comprising one or more points for fastening roller bearing support structures which comprise structural attachment or arresting elements secured by screws to the roller bearing support structure and to the hollow structural section stay or beam. The structure further comprises an upper fitting section for including additional modules that are fastened by screws to the tunnel walls.