The British Standard for Design of Runway Beams is BS2853:1957. Beam size for the above criteria you would get away with a U/B 457x191mm (98kg/m) but this very close to failure.
In Britain we use BS853:1957 to calculate the design of Runway Beams. A Beam the size of U/B762x267 (173kg/m) would be capable of taking the load you require 10,000kg, taking into account the dynamic load of 125% for the electric hoist, and that the hoist trolly would be running at worst on the...