STRUCTURAL DUCT BEARING SYSTEM
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United States of America Patent
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Issued Date -
May 10, 2012
app pub date -
May 14, 2010
filing date -
May 20, 2009
priority date (Note) -
Abandoned
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Abstract
The present invention is related to a duct bearing system, more specifically to a 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 system 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, the 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 farther comprises an upper fitting section for including additional modules that are fastened by screws to the tunnel walls.
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