GOST 24756-81 PDF

Full title and description

GOST 24756-81 — "Сосуды и аппараты. Нормы и методы расчета на прочность. Определение расчетных усилий для аппаратов колонного типа от ветровых нагрузок и сейсмических воздействий" (English: "Vessels and apparatus. Norms and methods of strength calculation. Determination of design actions for column-type apparatus from wind loads and seismic impacts").

This standard provides formulas, coefficients, tables and procedural rules for calculating wind- and seismic-induced efforts (bending moments, forces, accelerations) in column-type vessels and apparatus with constant or varying cross-sections.

Abstract

GOST 24756-81 sets out the methodology to determine design (rated) loads and internal efforts caused by wind and seismic actions on vertical column-type process vessels and apparatus. It covers determination of natural vibration period, static and dynamic wind components, distributed wind forces per section, seismic forces and resulting bending moments, and includes tables, charts and example coefficients used in strength calculations for design and verification of such equipment.

General information

• Status: Withdrawn / not in force in Russia (replaced by national successor standard ГОСТ Р 51273-99).
• Publication date: Approved 15 May 1981; introduced 1 July 1981.
• Publisher: Издательство стандартов (USSR standards publisher).
• ICS / categories: Chemical / pressure-vessel equipment classification (Russian category examples: 71.120 — equipment for chemical industry / vessels and apparatus).
• Edition / version: Original issue — 1981 (ГОСТ 24756-81).
• Number of pages: 18 pages.

Scope

The standard applies to vertical column-type apparatus (process columns, towers and similar vessels) with constant or variable cross-section. It establishes procedures for: determination of the fundamental period of oscillation; calculation of static and dynamic components of wind loads along the column height; distribution of wind pressure by sections; calculation of seismic inertial forces and corresponding bending moments and shear forces; and assembly of these actions into design efforts used for strength calculations of shell, supports and foundations. The standard is intended for use during design, strength verification and assessment of column-type vessels subject to wind and seismic effects.

Key topics and requirements

• Definition and calculation of the natural period of the column (modal estimate methods and formulae).
• Separation of wind loading into static and dynamic components and calculation of distributed wind pressure per section.
• Formulas for bending moment, horizontal forces and reduced accelerations from wind and seismic actions.
• Use of aerodynamic coefficients, height zoning (wind pressure zones) and tabulated numerical factors for different column heights and shapes.
• Rules to combine wind- and seismic-induced efforts for design verification (including recommended partial factors and combinations typical for the era of the standard).
• Reference tables, charts and example calculation procedures to support design implementation.

Typical use and users

Mechanical and structural engineers, pressure-vessel designers, petrochemical and refinery equipment designers, seismic and wind-load analysts, standards specialists and technical auditors use this standard when performing strength and stability calculations for tall vertical process columns, distillation towers, scrubbers and similar apparatus. It is used in design offices, equipment manufacturers and regulatory/inspection bodies for historical reference or where legacy designs reference the 1981 methodology.

Related standards

Key related documents and successors include: ГОСТ 14249-89 (general norms and methods of strength calculation for vessels and apparatus), ГОСТ Р 51273-99 (successor/replacement for column-type apparatus wind and seismic calculation), and other GOSTs in the "vessels and apparatus" series (for example standards covering shells, heads, reinforcements and high‑pressure vessels). The standard also references contemporary USSR/industry normative tables and regional seismic/wind zoning used at the time of issue.

Keywords

column-type apparatus, vessels, wind load, seismic load, bending moment, strength calculation, design actions, natural period, aerodynamic coefficients, ГОСТ 24756-81

FAQ

Q: What is this standard?

A: ГОСТ 24756-81 is a Soviet-era national standard that prescribes norms and calculation methods to determine design wind- and seismic-induced efforts for vertical column-type vessels and apparatus used in process industries.

Q: What does it cover?

A: It covers methods to determine the natural vibration period of column-type apparatus, calculation of static and dynamic wind loads by height, calculation of seismic inertial forces, derivation of bending moments and horizontal forces, and the use of tables and coefficients needed for these calculations.

Q: Who typically uses it?

A: Structural and mechanical engineers, designers of process equipment (distillation columns, towers, scrubbers), and technical specialists involved with strength verification of tall vertical vessels — particularly when dealing with legacy designs or historical documentation that references ГОСТ 24756-81.

Q: Is it current or superseded?

A: It has been superseded/replaced in the Russian system by ГОСТ Р 51273-99 and is no longer the active normative reference in modern Russian practice; it remains of historical or legacy interest.

Q: Is it part of a series?

A: Yes — it belongs to the series of GOST standards on "Vessels and apparatus. Norms and methods of strength calculation" and is frequently referenced alongside other GOSTs on shells, heads, reinforcements and specific calculation methods for pressure equipment.

Q: What are the key keywords?

A: Column-type apparatus, wind loads, seismic actions, strength calculation, design efforts, bending moment, natural period, ГОСТ 24756-81.