Architectural iron and steel, and its application in the construction of buildings ... specifications of ironwork ... tables selected expressly for this work ... by Wm. H. Birkmire (1905)
Birkmire, Wm. H. (William Harvey), 1860-1924 · New York, J. Wiley · leaf 124
SECTION A-B three quarters of an inch to one inch thick, from 12 to 16inches wide, with -§• inch clearance on each side for putty; thelength should not be over 30 inches. But as the glass is liableto break unless it be perfectly flat, it is preferable to have FLOOR LIGHTS AND SKYLIGHTS. I05 it… … Seltion c-d Section E-f In calculating the strength of bearing bars, deduct the areaof hole punched out for the one-inch-square bars. Then forsafe load uniformly distributed use the following formula: Io6 ARCHITECTURAL IRON AND STEEL. 2.6AD Safe load in tons = lL where A = area of section ;D =…
Building, Iron and steel
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