Cable raceway for bridges and like structures with channel members having multiple degrees of freedom

摘要

A cable raceway for carrying cables, e.g., fiber optic cables, across interior or exterior spaces is disclosed. The cable raceway includes a series of support channels and a plurality of main channels, each main channel being disposed in an overlaying relationship between successive pairs of support channels. An elongated slot is formed through end portions of the main channels, and bolts pass through spacers attached to the support channels and disposed in the elongated slots. The cable raceway also includes a plurality of covers set over respective channel members. Each cover includes a top portion; a pair of opposing sides extending downward perpendicularly from the top portion; and, a pair of steps formed on inner surfaces of respective sides adjacent to the top portion, thereby extending longitudinally along the length of the cover. The cable raceway includes features for making the raceway weather resistant and compliant with structural motion due to loading, seismic activity, meteorological activity, and/or thermal expansion, thereby making the cable raceway especially suitable for use on external structures such as bridges or the like.