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FEXLALifting and supportsB-03

Skirt access opening

A round, obround or tombstone opening in a skirt: stresses and buckling.

Where it stops: Base ring, gussets and anchor chairs are not modelled; the base is held.

Shell model of a tombstone access opening in a skirt — Fig. 1 · Shell model of a tombstone access opening in a skirt

Choose a method

The quickest first. Each opens with a first page for the job: units, code edition and which checks to run.

01Shell model + buckling
Skirt access opening
Tombstone, obround or round opening with sleeve and optional pad, skirt from the base to the head joint; stresses and buckling.
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Use it for

01Tombstone, obround or round opening, with sleeve and optional pad.
02Tall vessels: the skirt round the opening checked for buckling under weight and wind or seismic.

In pictures

Fig. 2 · The agitator connection: thrust, torque and bending at the flange
Fig. 3 · The analysis: stress at the connection, worst point marked
Fig. 4 · A stress result, VIII-2 Part 5

How it works

Method notes: Specialty analyses Worked examples Quick reference

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