SP 296.1325800.2017 PDF

Full title and description

SP 296.1325800.2017 — "Buildings and structures. Accidental actions" (СП 296.1325800.2017 «Здания и сооружения. Особые воздействия»). A Russian set of rules that defines requirements for accounting special (accidental) loads and impacts in the design of buildings and structures, including measures to limit local damage, internal and external explosion effects, extreme climatic influences and prevention of progressive collapse.

Abstract

SP 296.1325800.2017 establishes principles, classification and calculation rules for accidental (special) actions on buildings and structures of normal and increased levels of responsibility (classes KS-2 and KS-3). The document sets out the design situations to be considered, calculation methods for internal and external explosions, requirements to limit local damage and to ensure structural robustness against progressive collapse, and requirements for accounting extreme climatic impacts and other rare but hazardous events. The standard was approved by the Ministry of Construction of the Russian Federation and introduced into the regulatory framework with subsequent amendments.

General information

• Status: Active / In force (introduced for the first time and maintained with later amendments).
• Publication date: Approved by order of the Ministry of Construction on 3 August 2017; brought into effect in early 2018 (publication/entry into force: 4 February 2018). Updated by Amendments No.1 (2019) and No.2 (2021).
• Publisher: Ministry of Construction, Housing and Utilities of the Russian Federation (Минстрой России).
• ICS / categories: Construction — general requirements (ICS 91.040); national series: SP (set of rules) for structural design and reliability.
• Edition / version: First edition, 2017 (with revisions: Amendment No.1 — 2019; Amendment No.2 — 2021).
• Number of pages: Approximately 30–32 pages (typical published length varies by publisher/format).

Scope

The scope covers requirements for identification, classification and calculation of accidental (special) actions on buildings and structures of classes KS‑2 and KS‑3 (normal and elevated responsibility) for limit states of the first group. It defines design accidental situations to be considered (internal/external explosions, local damage, vehicle impact, extreme climatic and other rare extreme influences), sets rules for combinations with normal loads, and establishes requirements to prevent local failures from triggering progressive collapse and to ensure sufficient robustness and ductility of structural systems.

Key topics and requirements

• Definitions and classification of accidental (special) actions and design accidental situations.
• Assignment of building/structure classes (KS‑2, KS‑3) and determination when accidental design is required.
• Calculation methods and design rules for internal and external explosions, pressure loading and impulses.
• Procedures to assess and limit local damage and avoid progressive collapse (robustness checks and alternative load paths).
• Requirements to account for extreme climatic influences (wind, snow, temperature extremes) when they present accidental-type loads.
• Rules for combinations of accidental actions with service and extreme loads and for selection of partial safety factors and resistance values in accidental situations.
• Prescriptive and verification requirements for detailing, connections, continuity and redundancy to improve structural resilience.
• References to related SP and GOST documents, and requirements for documenting design assumptions and decisions concerning accidental actions.

Typical use and users

Used by structural engineers, design offices, project managers, safety and risk engineers, regulatory authorities, and reviewers involved in the design, assessment and retrofit of buildings and structures where rare but hazardous events must be considered. Typical applications include industrial facilities, public buildings, transport infrastructure and any project classified as KS‑2 or KS‑3 where enhanced reliability and protection against accidental actions is required. Also used in academic and research settings for education and analysis of structural robustness and extreme-event design.

Related standards

Commonly used together with other Russian design documents and standards, including but not limited to: SP 385.1325800.2018 (protection against progressive collapse and related design principles), SP 20.13330 (loads and impacts), SP 43.13330 / SP 56.13330 series (requirements for explosive and industrial facilities and related loadings), GOST standards on materials and testing, and general reliability standards such as GOST 27751. The standard contains normative references to other SP and GOST documents that govern specific load cases, material properties and calculation procedures.

Keywords

Accidental actions; special loads; buildings and structures; robustness; progressive collapse; internal explosion; external explosion; local damage; extreme climatic influences; KS-2; KS-3; structural reliability; SP 296.

FAQ

Q: What is this standard?

A: SP 296.1325800.2017 is a Russian set of rules titled "Buildings and structures. Accidental actions" that specifies how to identify and design for rare or accidental loads and impacts on buildings and structures.

Q: What does it cover?

A: It covers classification of accidental actions, required design accidental situations, calculation rules for internal/external explosions and other special loads, methods to limit local damage, and requirements to ensure structural robustness and prevent progressive collapse.

Q: Who typically uses it?

A: Structural and design engineers, project and safety managers, regulatory reviewers, and specialists involved in the design, assessment or retrofit of buildings and facilities where accidental actions must be considered (notably projects in classes KS‑2 and KS‑3).

Q: Is it current or superseded?

A: The standard was approved by the Ministry of Construction on 3 August 2017 and came into force in early 2018. It remains in force with subsequent Amendments No.1 (2019) and No.2 (2021). Users should verify the official national registry or the publisher for any later amendments or superseding documents before design work.

Q: Is it part of a series?

A: Yes — it is part of the Russian "SP" (set of rules) family of construction design documents and is intended to be used alongside other SP documents that cover loads, materials and specific structural system requirements.

Q: What are the key keywords?

A: Accidental actions, special loads, progressive collapse, internal explosion, external explosion, local damage, robustness, KS‑2, KS‑3, extreme climatic impacts.