Abstract

This chapter explains the basic formulas, rules of exponents, cables and ropes, belts and shafts, and pipeline pigging. Various kinds of rope and chains are available; the possible strength factors are reviewed in this chapter. They allow for safety factor of 4 as based on mild plow steels. Stress in guy wires is also defined, which states that guys are wire ropes or strands used to hold a vertical structure in position against an overturning force. The most common types of guyed structures are stacks, derricks, masts for draglines, reversible tramways, and radio transmission towers. As a general rule, stresses in guys from temperature changes are neglected, but in structures such as radio masts, this is an important feature and must be subject to special analysis. The number of guys used for any particular installation is contingent on several variable factors such as type of structure, space available, and contour of the ground.

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