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建筑结构的吊装离不了钢丝绳。钢丝绳的种类很多,破断拉力和允许拉力也难记。从手册中虽然可以查到,但也不方便。现介绍一种简便的近似计算法。一、钢丝绳破断拉力的速算法口诀:破断拉力P的千克力数,直径的平方乘以45。侧1:工地上有一根6×19+1的钢丝绳,直径为20毫米,不知型号,试估算它的破断拉力。解:因不知钢丝绳型号,取公称拉力最小值;
The lifting of the building structure can not be separated from the wire rope. There are many kinds of wire ropes, and breaking tension and allowable pull force are hard to remember. Although it can be found in the manual, it is not convenient. A simple approximate calculation method is introduced. First, the speed of wire rope breaking force algorithm Mouth: Break force P kilograms of force, the square of the diameter multiplied by 45. Side 1: A 6×19+1 steel wire rope with a diameter of 20 mm was used on the construction site, and it was estimated that the breaking force was broken. Solution: Because I do not know the wire rope model, take the nominal pull minimum;