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Formulas in Roark's Formulas for Stress and Strain. You can approach this in a simplistic way as a plate with simply supported edge. Or you could calculate edge moments and rotation/deflection in the cylinder as well, which should give you a little better idea of stresses in the welds. With...

I ran across this incident while surfing Youtube a bit ago: https://www.reuters.com/world/americas/brazil-probes-risks-chemicals-after-tankers-plunged-off-collapsed-bridge-2024-12-24/

Texas had its own example: https://en.wikipedia.org/wiki/Ocean_Tower

I assumed "vessel" as in Pressure Vessel per ASME Boiler and Pressure Vessel Code, Section VIII. And I assumed "offshore" as in oil/drilling platform. Assuming pressure vessel, it would likely fall under the "non-building structures not similar to buildings" in ASCE 7. So most of the building...

I haven't used Compress, so I don't know what all the capabilities are. But you should be able to use the seismic design aspects for their accelerations. Normal seismic design calculates an elastic response, then divides by R to account for inelastic action and limited damage, and depending on...

If this is a continuing need, it wouldn't be too hard to actually test- see some of the videos on the Project Farm Youtube channel, for example.

I think most tanks would be floating before liquid level reached the opening of a conventional round shell manway. You can anchor tanks to prevent floating, and the amount of hassle involved there depends on the depth involved. Also consider, that while the tank itself may survive the event just...

Step No. 1, contact a fabricator and make sure it can be done at a reasonable cost. You may find it can be done, but have to ship it halfway across the country. Or could be too tight a radius where it's not easily feasible.

Agreed, it's saying you design for yielding, but that yielding can be in the item attached rather than in the bolt itself.

There is also an Applied Technology Council webtool (which I actually prefer) but it is in the process of being phased out. https://hazards.atcouncil.org/

Assume both items are rigid, gasket is flexible with force proportional to deflection, and it's relatively simple to calculate gasket pressures and bolt forces. Justifying or removing those assumptions- considerably more complicated. Showing that the gasket won't leak and the bolts won't loosen-...

Generally, you're allowed to use any process that will produce adequate quality. Assuming that's done, it's usually an economic issue as to which process is used.

Generally, a question like that would depend on the equipment, people, skills, conditions, thicknesses, alloys, economics, etc., and may vary depending on those factors. It might help if we knew the motivation for the question.

They should specify a thickness of corrosion allowance. Surfaces with just one side to the product will have thickness increased by that amount (shell and bottom) Surfaces with both sides exposed to the product will have thickness increased by double that amount (submerged structural, nozzle...

So far as I know, spiral-welded pipe has been viewed as a cheaper option that has not always been viewed as equal to regular pipe. So conventional mill pipe should be fine, or fabbed from plate by local vessel fabricator or steel fabricator should be fine. I'm not familiar with C206. I would...

"while weight of product on bottom plate and bottom plate itself will be transferred to ringwall and backfill inside ringwall by the area proportion, meaning pressure under bottom plate is uniform" That would be the normal assumption. It may be possible to have minor voids at laps or edge of...

For a pontoon-type roof, API has a requirement that the roof float when any two adjacent pontoons and the center deck are compromised. Using fewer pontoons gives you a larger flooded area under this assumption, may require taller pontoons, additional strength, etc. But this reasoning wouldn't...

Is this one tank that you're reducing height and also changing to cone roof? Or two separate tanks, one lowered, one converted to cone? Generally, details of this kind of work would be left up to the contractors doing the work, and might vary depending on tank size, access, surroundings...

"yes... under high stress and temperature over time" This is something I'm rather curious about. As in the case questioned, there's no high temperature at all. Long ago, I recall hearing that truck leaf springs should not be left under load overnight, so one guy insisted on jacking his dump...

Quote: "Who Can File A Mechanic’s Lien In Texas? In Texas, Property Code Chapter 53 allows for three different types of parties to file mechanic’s liens. These include: Any party who furnishes labor or materials Parties who fabricate specialty materials Design professionals" Not sure you'd want...