吊装绳索又称千斤绳,目前吊装绳索计算的常用公式为: S=Q/n·1/cosα(1)式中:n——绳索股数;S——每股千斤绳的受力;α——绳索与铅垂线的夹角;Q——被吊物品的重量。按照公式(1)计算吊装绳索常使被吊设备在吊运过程中摆动和倾斜,甚至由于受力过大引起绳索断裂。下面以最简单的用两股绳索吊运的情况说明这个问题。 Lifting rope, also known as jacking rope, rope currently used to calculate the common formula for the rope: S = Q / n · 1 / cosα (1) Where: n - rope shares; S - pounds per rope force; α - the angle between the rope and plumb line; Q - the weight of the item to be suspended. Calculating the hoisting ropes according to the formula (1) often causes the suspended equipment to swing and tilt during hoisting and even cause the rope to break due to excessive stress. Here’s the easiest way to handle this problem with two ropes.