An access hatch is provided at the top of the central cylinder supporting the saddle
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Is it possible to install a manhole at the top of the central cylinder supporting the double saddle of a horizontal container?
From a practical manufacturing perspective, it’s fine to have it located in the middle. The information states that it is best to avoid creating manholes above the saddle area, as this can lead to deformation; however, in some cases of manufacturing this is not a problem, possibly because the cylinder already has sufficient rigidity and the end caps also serve to reinforce it.
Try not to make holes here, as the stress levels are high; holes will reduce the performance of the tank. If it is unavoidable, reinforcement measures must be taken!
As long as the calculation passes, there’s no problem
In general, it is best to avoid creating manholes directly above the two saddles, as this area experiences the greatest tensile stress; the stress is concentrated here, making it prone to flattening
Does the poster mean the top of the cylinder between the two saddles? If so, it is not advisable to make holes here either, as the bending moment on the cylinder at this location is the greatest, and therefore the stress levels are also highest. Both areas above the saddles are regions with high stress, so holes should be avoided in these areas as much as possible
Agree with what was said above. But it is also possible to \"provide an access hatch at the top of the central cylinder supporting the double saddles in the horizontal container\", as long as the necessary reinforcement measures are taken
I think it’s fine to install manholes in any of the above locations, as the manholes actually serve a reinforcing purpose.
There is no specific rule stating that holes cannot be made here; they can be made