Detailed criteria for the design of the shell, foundations, and appurtenances.
: Includes sizing for gas passages (height and diameter) and calculating natural draft, draft losses, and heat transfer through stack walls.
“A collapse costs $20 million and maybe a life.”
OSHA climbing compliance; FAA aviation lighting; lightning grounding. Accessing the Official ASME STS-1-2021 PDF Asme Sts-1 2021 Pdf
Industrial steel stacks (commonly referred to as chimneys) are critical components used in power plants, oil refineries, and chemical processing facilities to vent low-pressure combustion gases safely into the atmosphere. Because these tall, slender structures are subject to unique complex dynamics—such as cross-wind vibrations, seismic loads, thermal expansion, and aggressive chemical corrosion—they require specialized engineering metrics beyond standard building codes.
This change means the wind speed for a given job site is now higher, leading to increased wind pressures. However, ASME STS-1-2021 remains an ASD code, so it uses new load factors to adjust these ultimate pressures back to an ASD basis.
ASME STS-1 is a standard published by the American Society of Mechanical Engineers (ASME) that covers the design, fabrication, erection, and maintenance of steel stacks. It applies to stacks where the primary structural element is a steel shell, including both self-supporting stacks and guyed or braced steel stacks. Detailed criteria for the design of the shell,
The 2021 edition is roughly 112–116 pages and covers several critical engineering disciplines: Mechanical Design
Understanding ASME STS-1-2021: Steel Stacks Design and Construction
Response spectrum analysis mapped to local structural building codes. Appurtenances and Safety Accessibility Accessing the Official ASME STS-1-2021 PDF Industrial steel
: Provides mandatory requirements for assessing and controlling wind-induced and seismic-induced vibrations , which are common causes of stack failure.
The wind bit hard across the old coke plant, carrying the ghosts of a thousand fires. Mara Vasquez zipped her frayed Carhartt jacket and pointed a thermal camera at Stack 14. The 200-foot steel chimney had been vibrating for three weeks—not the usual harmonic hum, but a deep, irregular groan.
Grissom was quiet. Then: “Helical strake costs $90k. Shutdown costs $200k a day.”
The standard is currently in its "Current" edition, with the published date often noted as 2022, though the edition is referred to as 2021. The document contains 116 pages.