BS EN 15080-12-2011 PDF

Full title and description

STB BS EN 15080-12:2011 — Extended application of results from fire resistance tests — Part 12: Loadbearing masonry walls. This document is the European Technical Standard (EN 15080-12) as adopted by national bodies (British Standard designation BS EN 15080-12:2011 and other national variants such as STN/ŠT/ÖNORM/DIN adoptions) and gives guidance for extending the applicability of fire-resistance test results to loadbearing masonry wall variants.

Abstract

This standard gives procedures and guidance, where appropriate, to allow changes of certain parameters and factors affecting the design of internal and external loadbearing masonry walls that have been tested in accordance with EN 1365-1. It permits the use of existing fire resistance test data as supporting information to extend the application range of test results, thereby reducing the need for repeat testing in some cases. The standard excludes certain masonry unit types and does not apply to reinforced masonry.

General information

• Status: European standard EN 15080-12 issued as national adoptions (e.g., BS EN 15080-12:2011). National adoption/status can vary by country; some listings show national implementations from 2011 while a few records indicate later revisions or withdrawal notices in certain national catalogs — always verify with the relevant national standards body for current validity.
• Publication date: 2011 (EN / national adoptions: many national bodies list publication/adoption dates in 2011; BS adoption commonly referenced as 30 June 2011).
• Publisher: European Committee for Standardization (CEN) as the originator of EN 15080-12; national published versions (e.g., BSI for BS EN 15080-12:2011, DIN/ÖNORM/STN for national editions).
• ICS / categories: 13.220.50 (Fire-resistance of building materials and elements); 91.060.10 (Walls, partitions, façades).
• Edition / version: First EN edition published 2011; national adoptions bear national edition dates (e.g., BS EN 15080-12:2011). Some national catalogs show later administrative actions or project work toward revision.
• Number of pages: National publications list around 15–20 pages depending on publisher/version (BS listing commonly shows 20 pages; DIN listings show 19 pages; some later bibliographic entries list shorter page counts for revised documents).

Scope

Provides guidance and, where applicable, procedures for varying parameters and factors associated with the design of internal and external loadbearing masonry walls that have been subjected to fire resistance testing according to EN 1365-1. The scope allows using data from existing fire-resistance tests as supporting evidence when extending applicability beyond the direct scope of the original test. The standard explicitly excludes masonry units manufactured from certain materials (e.g., units covered by EN 771-5 or EN 771-6) and does not apply to reinforced (reinforced or prestressed) masonry.

Key topics and requirements

• Principles for extending the application of EN 1365-1 fire-resistance test results to geometrical and material variations of loadbearing masonry walls.
• Identification of parameters and factors that may be varied (e.g., dimensions, loading conditions, material properties) and the limits for which test results can be used as a basis for assessment.
• Requirements and exclusions: not applicable to masonry units covered by EN 771-5 (concrete masonry units of aggregate concrete) and EN 771-6 (natural stone masonry units) and not intended for reinforced masonry.
• Use of documented test data as supporting information to justify extended application without full retesting, together with provisions to ensure safe equivalence.
• Reference to complementary EN standards (notably EN 1365-1 for fire-resistance testing) and normative cross-references required for application.

Typical use and users

Architects, structural and fire engineers, product manufacturers (masonry units and wall systems), test laboratories, conformity assessment bodies and regulatory authorities use this standard to evaluate whether fire test results can be extended to similar wall configurations. It is used to reduce unnecessary repeat testing while ensuring fire safety performance is maintained when design or material parameters vary within accepted limits.

Related standards

Closely related to EN 1365-1 (fire-resistance tests for loadbearing elements), and to product standards for masonry units such as EN 771-5 and EN 771-6. It is one part of the EN 15080 series ("Extended application of results from fire resistance tests") which contains other parts addressing different element types or details. Users should consult EN 1365-1 and the relevant EN 771 product standards when applying EN 15080-12.

Keywords

fire resistance, extended application, EN 1365-1, masonry walls, loadbearing walls, masonry units, EN 15080-12, BS EN 15080-12, test data extension, fire engineering.

FAQ

Q: What is this standard?

A: EN 15080-12 (published as national adoptions including BS EN 15080-12:2011) is a European technical standard giving guidance and procedures for extending the applicability of fire-resistance test results to loadbearing masonry wall variants.

Q: What does it cover?

A: It covers methods and limits for using existing EN 1365-1 fire test results to justify changes in wall geometry, materials and loading for unreinforced loadbearing masonry walls, and specifies exclusions (for example certain masonry unit types and reinforced masonry).

Q: Who typically uses it?

A: Fire and structural engineers, test laboratories, masonry manufacturers, certification bodies and regulators use it to assess when existing fire test evidence may be applied to related masonry wall configurations without full retesting.

Q: Is it current or superseded?

A: The original EN 15080-12 edition dates from 2011 and was adopted nationally in 2011 by several bodies (e.g., BS, DIN, STN). National catalog records and bibliographic listings show variations in national status over time — some entries show later administrative actions (project or withdrawal notes in specific catalogs). Because national implementations and revisions can change, you should verify current status with the relevant national standards body (for example BSI, DIN, STN, ÖNORM) before relying on the standard for regulatory or contractual purposes.

Q: Is it part of a series?

A: Yes — EN 15080 is a multi-part series (Extended application of results from fire resistance tests) and Part 12 specifically addresses loadbearing masonry walls. Other parts of EN 15080 address different elements or details — consult the EN 15080 index and related EN documents for the complete series.

Q: What are the key keywords?

A: fire resistance, extended application, masonry, loadbearing walls, EN 1365-1, test evidence, EN 771-5, EN 771-6.