Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 299
the straight-line formula M, = SObd^,on the basis that p = .0086,we may write the equation: 473,812 = 80 X 28 X d^,from which, d2=211;d = 14.5;A = pbd= .0086 X 28 X 14.5= 3.59 square inches. This area of metal may be furnished by eight |-inch round bars, andtherefore there should be eight |-inch… … 246 MASONRY AND REINFORCED CONCRETE 235 precise theory. The following approximation to it is probablysufficiently precise. The area of each corner section is the squareof 28.5 inches, or 812.25 square inches. At 6,000 pounds per squarefoot, the pressure on such a section will be 33,844 pounds, and…
Architecture · Building
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