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US 4,907,910 AGranted
Roof structure for tunnel
AssigneeTeron International Development Corporation Ltd.
InventorWilliam Teron
Life of this patent
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AssigneeTeron International Development Corporation Ltd.
InventorWilliam Teron
Estimating the term…
A long tunnel structure for covering a depressed highway or railway, which provides substantially increased ventilation and over which parkland or building structures can be built. In the latter case the columns of the tunnel structure can be used as columns for supporting the building. The tunnel structure is comprised of support structures for roof beams, and a plurality of parallel roof beams supported by the support structures extending laterally over the depressed highway. Each of the roof beams is comprised of an elongated slab and a pair of spaced elongated upwardly projecting slab legs each spaced from longer edges of the slab and extending along the slab. The slabs are spaced apart a distance sufficient to allow air flow therebetween. Elongated closure slabs are disposed over the ends of the legs of adjacent slabs along the beams to form vents between adjacent legs of adjacent beams.
A tunnel structure comprising support structures for roof beams, and a plurality of parallel roof beams supported by said support structures extending laterally over a highway, each of said roof beams being comprised of an elongated slab and a pair of spaced elongated upwardly projecting slab legs each spaced from longer edges of the slab and extending along said slab, the slabs being spaced apart a distance sufficient to allow air flow therebetween, and elongated closure slabs each disposed over the ends of the legs of adjacent slabs along said beams to form vents between adjacent legs of adjacent beams.
A tunnel structure comprising support structures for roof beams, and a plurality of parallel roof beams supported by said support structures extending laterally over a highway, each of said roof beams being comprised of an elongated U-shaped cross-section beam having the open part of the U-shape facing upwardly, the beams being laterally spaced apart, a closure slab extending across the tops of and along the legs of adjacent legs of adjacent beams, and means partly closing gaps between the beams at the bottoms of the legs but being sufficiently open to allow air flow into the space between the legs of adjacent beams.
A tunnel structure comprising support structures for a tunnel roof on opposite sides of a highway passing through the tunnel, said roof being formed of a plurality of elongated parallel disposed slabs supported by the support structure and extending laterally over a highway, the slabs being spaced so as to form gaps therebetween, an elongated housing disposed over each of said gaps to form a plurality of vents above said slabs, and means communicating with said vents to exhaust air therefrom.
Dependencies are inferred from the claim text.