Single And Double Beam Crane Hook

The crane hook has three dangerous sections, as shown in the attached figure: The three dangerous sections of the hook are: (1) the a-a section is affected by the sling tension on the one hand, and the hook tends to be straightened; On the other hand, it is also affected by the bending moment....

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The crane hook has three dangerous sections, as shown in the attached figure:


The three dangerous sections of the hook are:


(1) the a-a section is affected by the sling tension on the one hand, and the hook tends to be straightened;

On the other hand, it is also affected by the bending moment.

This section is a dangerous section because it has the greatest bending moment and the greatest bending stress.


(2) the b-b section is the same as a-a section. Under the action of sling tension, b-b section tends to be straightened and sheared, where the shear stress is the largest. Therefore, it is also A dangerous section.


(3) c-c section. This section is the thinnest part of the hook column. Under the action of sling tension, it tends to be pulled.

The tensile stress is greatest here, so it is also a dangerous section.


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