Strength of reinforcement rings for atmospheric pressure cylindrical vessels
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This post was last edited by Yu Leilanchi on 2019-3-29 at 10:55. In the NB/T47003.1 standard, for the reinforcement rings of rectangular containers only their moment of inertia is taken into account – is it still necessary to conduct strength checks?
Consider this, designers! All safety risks must be taken into account!
As long as the inertial distance is sufficient, there is generally no issue with strength
However, when selecting profiles as reinforcement elements based on their moment of inertia and checking their strength, the section modulus of these profiles often fails to meet the required standards.
The equipment is 6 m long, with a load of 23.9 N per mm; calculated as a beam fixed at both ends, the bending moment is 71,700 N·m. If the inertia moment is defined according to standard values, a 25b channel steel can be used, with an inertia moment of 3530 and a section modulus of 282. 71700/282=254.2MPa