Railways: surface track – Stringers – Concrete
238 87, 238 91, 238130, 238265, 238267, E01B 334, E01B 338
A cast concrete rail bed is provided which includes plural panels, each panel having a pair of longitudinally extending laterally spaced rail-supporting pedestals, with a connector between them, and each having a rail-receiving slot in its top. Each pedestal has a bottom support surface and inwardly sloping surfaces connected to the top and bottom surfaces. Reinforcement within each pedestal includes a horizontal support below the slot, and a supporting rod extending downwardly from the support and through the bed. A pair of longitudinally extending reinforcing members are supported on the horizontal support, one on each side of the slot, and extending upwardly above the bottom on the slot. A transverse spacer connects the reinforcing members above the horizontal support; tendon ducts are supported by the horizontal support, below the spacer.
patent: 903883 (1908-11-01), Potts
patent: 912219 (1909-02-01), White
patent: 1020973 (1912-03-01), Frisholm
patent: 1109267 (1914-09-01), Thomas
patent: 1195922 (1916-08-01), Fairman
patent: 2300054 (1942-10-01), Mannaberg
patent: 2496850 (1950-02-01), Bertrand
patent: 3948010 (1976-04-01), Sonneville
Husar Francis S.
Maser Thomas O.
Reese Randolph A.
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