<![CDATA[Steel rope is one of the most important parts of the aircraft's systems lifter. Strength steel cord vary, depending on the terms of usage and requirements of a building. Construction steel rope which is typical for elevator consists of 8-spun wound together, the direction to the left or right with the middle core. Each spun steel strap consists of 19 wires is 9.9.1, which means outside the wire 9, 9 inside and one in the center. Sectional area of the steel rope (F152) based on the tensile stress to a steel rope (S) is 1.9 cm. Tensile stress occurs in the steel cord is equal to (S) = 1894 kg. While the tensile stress is permitted (Smax) = 2800 kg. Actual breaking strength steel strap (P) by the safety factor with the types of mechanisms and operating conditions (K) is (P) = 10417 kg. The lifetime of steel ropes obtained from this analysis is 120 months or 10 years in normal use 8 hours per day. Steel rope used types : 8 x 19 = 152 + 1 Fiber Core specification: diameter steel rope (d): 10 mm, weight of the rope (W): 1.15 kg / m, the burden of broken steel rope (Pb): 15,400 kg, rope fracture stress (σb): 140-159 kg / mm². Due to the tensile stress (ST) = 1894 kg less than the tensile stress that is authorized (Smax) = 2800 kg, it can be concluded that the steel straps secure against tensile loads that occur]]>
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