A temporary construction elevator is to be designed to carry workers and materials to a height of
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A temporary construction elevator is to be designed to carry workers and materials to a height of 90 ft. The maximum estimated load to be hoisted is 5000 lbf at a velocity not to exceed 2 ft/s. For minimum sheave diameters and acceleration of 4 ft/s2, specify the number of ropes required if the 1-in plow-steel 6 x 19 hoisting strand is used.
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Since this is a design task a decision set is useful A priori decisions Function load height acceleration velocity life goal Design Factor nd Material ...View the full answer
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