Hoyt, Charles Hamilton, Burr, William H. (William Hubert), 1851-1934, United States. Bureau of Public Roads · Washington : U.S. Dept. of Agriculture, Office of Public Roads : G.P.O. · leaf 19
M:ty;S.k >/-=/:/ J:J\ /xA vOT-//-M/ / yyj … Fig. 2.—Reinforced concrete floor,for distributing pressure over a greater area and for protecting foundation from erosion. than the plank floor, and it may also be strengthened for greaterspans by constructing concrete beams beneath the floor to supportit. Tins is then known as the T-beam type of…
Bridges Design and construction · Culverts
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