Kidder, Frank E. (Frank Eugene), 1859-1905 · New York, Comstock · leaf 76
(a) (b) Fig. 25. FootiiiRS with Small ami Large Projections. projection, as shown in the figure at (b). In the latter illustrationthe projection x may be great enough to result in causing the up-ward pressure on it from the soil to bend it upward and to cause itsfailure by stresses developed by… … Fig. lb. Concrete Footing with Twisted Reinforcement. Crete spread footings may be used for walls or for piers or columns.Fig. 26 shows the most economical section for a concrete andtwisted iron footing. In building the footings with steel beams, thestrength of the concrete is practically wasted,…
Building · Carpentry · Masonry
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