For skirt compression, deduct the width of openings, G (ft), around the perimeter of the skirt. The following equations take into account the shift in…

The design procedure outlined here is based on cylindrical skirts. (Tapered designs are a special problem and beyond the scope of this manual.) Design of…

Process vessels are normally supported by one of the following methods (See Figure 400-19): • Skirts • Support legs • Support lugs • Ring girders…

For both vertical and horizontal vessels, internal appurtenances create loads that are directly applied to the vessel shell. These design concerns are best handled by…

In horizontal vessels, wind and earthquake loads primarily affect the design of saddles and supports. The design of the shell is normally controlled by other…

Certain “slender” vessels are susceptible to increased stresses as a result of the eccentricity of the vessel weight in the deflected position. Slender vessels are…

Vessels in high seismic zones are subjected to lateral forces during earthquakes that cause large stresses in the vessel wall. Section 100 of the Civil…

Wind loads produce two different effects on vessels. The primary effect is an equivalent static force from the maximum expected wind velocities, which causes lateral…

Nonpressure Parts of Vessel All structural steel not part of the actual pressure vessel should be designed in accordance with AISC Manual of Steel Construction.…

In-Service Conditions Circumferential stresses from internal pressure usually control the design of cylindrical pressure vessels. In horizontal vessels, wind or seismic loads rarely affect the…