San Francisco : Architect and Engineer, Inc · leaf 28
signing aluminum. The firmof Earl and Wright, San Francisco consulting en-gineers, has certainly performed a wonderful job ofdesigning. They followed closely the SpecificationsFor Heavy Duty Structures of High-Strength Alum-inum Alloy published as paper No. 25,i2 in Volume117 (1952) of the… … FRANCIS J. MURPHYProject Manager lowed by heat-treating. According to these specs, thefollowing factors in structural aluminum design areimportant. Basic allowable tensile working stress is 22,000 psibased on minimum yield strength of 5.i,000 psi andminimum tensile strength of 60,000 psi. Modulus…
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