What are the dangerous sections of the crane hook
The crane hook has three dangerous sections, as shown in the drawing:The three dangerous sections of the hook are
B -B A-A section with the same cross section, B -B section in the sling tension loading, have been straightened and cut off the trend here, shearing stress is maximum, it is also dangerous section.
C -C section of the section is the thinnest part of the hook column in a sling tension, have pulled off the trend. Here the maximum tensile stress, it is also dangerous section.
by the A-A sling tension section on the one hand, the hook has straightened trend; also by the effect of bending moment on the other hand. Because the moment in this section, the bending stress is maximum, this section is a dangerous section.
