The ASME STS-1-2021 standard, titled "Steel Stacks," provides established guidelines for the mechanical and structural design, fabrication, and maintenance of steel stacks used to convey nonflammable gases.
The 2021 edition is a revision of the 2016 version and is currently the active, most up-to-date standard. Core Areas of the Standard
Mechanical Design: Covers gas passage sizing (diameter and height), draft calculations, and heat transfer through stack walls.
Structural Design: Detailed principles for structural integrity, including load calculations for dead loads, live loads, and wind/seismic-induced vibrations.
Materials & Fabrication: Guidelines for selecting durable materials, coatings, and linings, as well as recommended practices for fabrication and erection.
Safety & Inspection: Requirements for access points (ladders and platforms) based on OSHA standards, electrical grounding, lightning protection, and routine maintenance procedures. Official Access and Availability
The standard is typically available in PDF format through authorized distributors: Steel Stacks - ASME Asme Sts-1 2021 Pdf
STS-1 - 2021 * Publisher: * 2022. * 116. * EN-US. * 9780791874813. The American Society of Mechanical Engineers - ASME ASME STS-1-2021 - Steel Stacks - ANSI Webstore
The ASME STS-1-2021 is the current structural engineering standard for the design, fabrication, and maintenance of steel stacks. It provides mandatory requirements and non-mandatory guidelines for stacks used in industrial and commercial facilities to convey gases at low internal pressures. Key Sections and Requirements
The standard is divided into several critical areas to ensure stack stability and safety:
Mechanical Design: Covers the sizing of gas passages (height and diameter) based on volume and draft, as well as heat transfer and differential expansion of stack components.
Structural Design: Establishes methods for stacks to resist external and internal loads, including dead loads, wind, and seismic activities.
Dynamic Wind and Seismic Loads: Provides specific criteria for controlling vibrations induced by wind and earthquakes, essential for tall, slender structures. Official Access and Availability The standard is typically
Material Selection & Protection: Includes guidelines for selecting steel materials, as well as the application of linings and coatings to prevent corrosion and erosion.
Fabrication and Construction: Details recommended practices for welding, assembly, and erection at the site.
Access and Safety: Outlines requirements for climbing safety, platforms, lighting, and lightning protection, often aligned with OSHA standards.
Maintenance and Inspection: Defines the necessary intervals and procedures for ongoing inspections to ensure long-term structural integrity. Document Specifications Steel Stacks - ASME
ASME STS-1-2021 is the definitive American National Standard for the design, fabrication, and maintenance of steel stacks
(industrial chimneys) where the primary supporting shell is steel. This 2021 edition succeeds the 2016 version and provides updated guidelines for structures used to vent combustion gases at low internal pressures. The American Society of Mechanical Engineers - ASME Core Scope & Applications Types Covered For flammable gases
: Includes single-walled and multiple-walled stacks, which can be either lined or unlined. Support Structures
: Applies to free-standing, guyed, or tower-supported stacks, whether they are on a foundation or integrated into another structure. Intended Use
: Primarily designed for nonflammable gases (e.g., combustion exhaust) at low internal pressure. For flammable gases, the standard requires additional modifications and compliance with codes like ASME B31.3 ASME BPVC Section VIII The American Society of Mechanical Engineers - ASME Key Design Pillars
The standard organizes its requirements into several critical engineering domains: Steel Stacks - ASME
I cannot directly provide a PDF file or a downloadable link for the ASME STS-1-2021 standard. ASME standards are copyrighted documents, and distributing them for free is a violation of copyright law.
However, I can provide you with the official details about the document and where you can legally purchase or access it.
ASME STS-1-2021 completely rewrites the seismic section to harmonize with ASCE 7-16’s Risk-Targeted Maximum Considered Earthquake (MCER) ground motions. Owners in high-seismic zones (e.g., California, Alaska, Japan) must pay close attention to Chapter 8, which introduces new response modification coefficients for stacks lined with brick or castable refractory.
The document is typically organized into the following sections: