Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 311
any given moment is to be dividedequally between two brackets, then, if we are to have a working ten-sion of 15,000 pounds per square inch in the steel, and a workingcompression of 500 pounds per square inch in the concrete, the areaof the concrete must be 30 times the area of the steel. But since… … Fig. 114. L-Shaped Retaining Wall. 256 MASONRY AND REINFORCED CONCRETE 245 must have twice that area of concrete; or, in other words, the areaof the concrete from the point of the angle down to the face must beGO times the area of the steel. Although these brackets are frequently put in without any…
Architecture · Building
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