There are four 55-ton shackles, and the safety factor of each shackle is four times the reference number. Four-point hoisting is adopted, and the safety factor is 1.3 times, which meets the requirements of national hoisting specifications. Working radius 14m, heavy arm length 42m, lifting weight 100t. The radius 14m is 298t.
Extended data:
Calculation method of lifting tonnage
According to the maximum horizontal distance. The so-called maximum horizontal distance refers to the horizontal distance that the hook extends into the direction of the object under the premise of normal lifting operation. Generally speaking, it is the horizontal distance from the lower shaft of the crane boom to the hook. The maximum horizontal distance Smax can be determined by the crane station, the basic position of the equipment and the position of the container, which are determined by the actual situation of the construction site.
Cosa=Smax/L( 1)
a=arccos(Smax/L)(2)
In the formula:
A: hoisting angle under the condition of maximum horizontal distance hoisting, Smax: maximum horizontal distance; According to the container weight and the maximum horizontal distance, initially select the crane, measure the arm length L of the crane, calculate the lifting angle A under the lifting condition of the maximum horizontal distance through the calculation formula (2), and check the crane load weight port according to the mechanical performance table preliminarily selected by A and Smax. When the lifting weight G
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