Illinois Society of Architects · Chicago · leaf 243
may be loaded not to exceed4,500 pounds per square foot. (b) If the soil is a layer of firm sandfifteen feet or more in thickness, and with-out admixture of clay, loam or other foreignsubstance, it may be loaded not to exceed5,000 pounds per square foot. (c) If the soil is a mixture of clay… … Fig. 24. Piff. 25. FOOTINGS. Sections 740a, b. Fig. 24 (B) Shall in all cases e.xtcnd 4 0below flnislieil gr.ule at building, unless footings reston bed roclc—Sec. 740a. Fig. 25 (C) Buildings 100 ft. or more in height;footings sball e.\tend at least to a depth drained bysewer in adjacent streets…
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
