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BS EN 1996-1-2:2005

Current

Current

The latest, up-to-date edition.

Eurocode 6. Design of masonry structures General rules. Structural fire design

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

07-31-2011

Foreword
Background of the Eurocode programme
Status and field of application of Eurocodes
National Standards implementing Eurocodes
Links between Eurocodes and products harmonised technical
specifications (ENs and ETAs)
Additional information specific to EN 1996-1-2
National Annex for EN 1996-1-2
Section 1. General
 1.1 Scope
 1.2 Normative references
 1.3 Assumptions
 1.4 Distinction between Principles and application Rules
 1.5 Definitions
      1.5.1 Special terms relating to fire design in general
      1.5.2 Special terms relating to calculation methods
 1.6 Symbols
 Section 2. Basic principles and rules
 2.1 Performance requirement
      2.1.1 General
      2.1.2 Nominal fire exposure
      2.1.3 Parametric fire exposure
 2.2 Actions
 2.3 Design values of material properties
 2.4 Assessment methods
      2.4.1 General
      2.4.2 Member analysis
      2.4.3 Analysis of part of the structure
      2.4.4 Global structural analysis
 Section 3. Materials
 3.1 Units
 3.2 Mortar
 3.3 Mechanical properties of masonry
      3.3.1 Mechanical properties of masonry at normal temperature
      3.3.2 Strength and deformation properties of masonry at
             elevated temperature
             3.3.2.1 General
             3.3.2.2 Unit mass
      3.3.3 Thermal properties
             3.3.3.1 Thermal elongation
             3.3.3.2 Specific heat capacity
             3.3.3.3 Thermal conductivity
Section 4. Design Procedures for obtaining fire resistance
            of masonry walls
 4.1 General information on the design of walls
      4.1.1 Wall types by function
      4.1.2 Cavity walls and untied walls comprising independent
             leaves
 4.2 Surface finishes - rendering mortar and plaster
 4.3 Additional requirements for masonry walls
 4.4 Assessment by testing
 4.5 Assessment by tabulated data
 4.6 Assessment by calculation
Section 5. Detailing
 5.1 General
 5.2 Junctions and joints
 5.3 Fixtures, pipes and cables
Annex A (Informative) Guidance on selection of fire
        resistance periods
Annex B (Normative) Tabulated fire resistance of masonry walls
Annex C (Informative) Simplified calculation model
Annex D (Informative) Advanced calculation method
Annex E (Informative) Examples of connections that meet the
        requirements of Section 5

Specifies the design of masonry structures for the accidental situation of fire exposure.

(1)P This Part 1-2 of EN 1996 deals with the design of masonry structures for the accidental situation of fire exposure, and is intended to be used in conjunction with EN 1996-1-1, EN 1996-2, 1996-3 and EN 1991-1-2. This part 1-2 only identifies differences from, or supplements to, normal temperature design.

(2)P This Part 1-2 deals only with passive methods of fire protection. Active methods are not covered.

(3)P This Part 1-2 applies to masonry structures which, for reasons of general fire safety, are required to fulfil certain functions when exposed to fire, in terms of:

  • avoiding premature collapse of the structure (load bearing function)
  • limiting fire spread (flames, hot gases, excessive heat) beyond designated areas (separating function)

(4)P This Part 1-2 gives principles and application rules for designing structures for specified requirements in respect of the aforementioned functions and levels of performance.

(5)P This Part 1-2 applies to structures, or parts of structures, that are within the scope of EN 1996-1-1, EN 1996-2 and EN 1996-3 and are designed accordingly.

(6)P This Part 1-2 does not cover masonry built with Natural Stone units to EN771-6

(7)P This Part 1-2 deals with the following:

  • non-loadbearing internal walls.
  • non-loadbearing external walls.
  • loadbearing internal walls with separating or non-separating functions.
  • loadbearing external walls with separating or non-separating functions.

Committee
B/525/6
DevelopmentNote
Supersedes DD ENV 1996-1.2. (07/2005) National Annex of this document is also available. See BS EN 1996-1-2 NA. (06/2007) Also available as part of BS KIT 210. (08/2010) Together with BS PD6697(2010), BS EN 1996-2 and BS EN 1996-3, it supersedes BS 5628-3(2005). (11/2010)
DocumentType
Standard
Pages
86
PublisherName
British Standards Institution
Status
Current
Supersedes

BS 5502-22(2003) : 2003 BUILDINGS AND STRUCTURES FOR AGRICULTURE - PART 22: CODE OF PRACTICE FOR DESIGN, CONSTRUCTION AND LOADING
BS 6093(2006) : 2006 DESIGN OF JOINTS AND JOINTING IN BUILDING CONSTRUCTION - GUIDE
07/30163355 DC : 0 BS 1991-1-6 - UK NATIONAL ANNEX TO EUROCODE 1 - ACTIONS ON STRUCTURES - PART 1-6: GENERAL ACTIONS - ACTIONS DURING EXECUTION
13/30262060 DC : 0 BS 5502-22+A1 - BUILDINGS AND STRUCTURES FOR AGRICULTURE - PART 22: CODE OF PRACTICE FOR DESIGN, CONSTRUCTION AND LOADING
PD 7974-3:2011 Application of fire safety engineering principles to the design of buildings Structural response and fire spread beyond the enclosure of origin
10/30168896 DC : 0 PD 6697 - RECOMMENDATIONS FOR THE DESIGN OF MASONRY STRUCTURES TO BS EN 1996-1-1 AND BS EN 1996-2
BS 8103-2:2013 Structural design of low-rise buildings Code of practice for masonry walls for housing
13/30262014 DC : 0 BS 8103-2 - STRUCTURAL DESIGN OF LOW RISE BUILDINGS - PART 2: CODE OF PRACTICE FOR MASONRY WALLS FOR HOUSING
13/30277948 DC : 0 BS 6093:2006+A1 - DESIGN OF JOINTS AND JOINTING IN BUILDING CONSTRUCTION - GUIDE
BS 5502-31(1995) : 1995 BUILDINGS AND STRUCTURES FOR AGRICULTURE - PART 31: GUIDE TO THE STORAGE AND HANDLING OF WASTE
PD 6697:2010 Recommendations for the design of masonry structures to BS EN 1996-1-1 and BS EN 1996-2

EN 771-3:2011+A1:2015 Specification for masonry units - Part 3: Aggregate concrete masonry units (Dense and lightweight aggregates)
EN 998-2:2016 Specification for mortar for masonry - Part 2: Masonry mortar
EN 771-4:2011+A1:2015 Specification for masonry units - Part 4: Autoclaved aerated concrete masonry units
EN 1365-1:2012/AC:2013 FIRE RESISTANCE TESTS FOR LOADBEARING ELEMENTS - PART 1: WALLS
EN 1364-1:1999 Fire resistance tests for non-loadbearing elements - Part 1: Walls
89/106/EEC : 1988 COUNCIL DIRECTIVE OF 21 DECEMBER 1988 ON THE APPROXIMATION OF LAWS, REGULATIONS AND ADMINISTRATIVE PROVISIONS OF THE MEMBER STATES RELATING TO CONSTRUCTION PRODUCTS
EN 771-6:2011+A1:2015 Specification for masonry units - Part 6: Natural stone masonry units
EN 1991-1-2:2002/AC:2013 EUROCODE 1: ACTIONS ON STRUCTURES - PART 1-2: GENERAL ACTIONS - ACTIONS ON STRUCTURES EXPOSED TO FIRE
EN 1996-1-1:2005+A1:2012 Eurocode 6 - Design of masonry structures - Part 1-1: General rules for reinforced and unreinforced masonry structures
EN 1366-3:2009 Fire resistance tests for service installations - Part 3: Penetration seals
EN 1991-1-1:2002/AC:2009 EUROCODE 1: ACTIONS ON STRUCTURES - PART 1-1: GENERAL ACTIONS - DENSITIES, SELF-WEIGHT, IMPOSED LOADS FOR BUILDINGS
PREN 12602 : DRAFT 2015 PREFABRICATED REINFORCED COMPONENTS OF AUTOCLAVED AERATED CONCRETE
EN 1363-1:2012 Fire resistance tests - Part 1: General Requirements
EN 1996-3:2006/AC:2009 EUROCODE 6 - DESIGN OF MASONRY STRUCTURES - PART 3: SIMPLIFIED CALCULATION METHODS FOR UNREINFORCED MASONRY STRUCTURES
EN 771-1:2011+A1:2015 Specification for masonry units - Part 1: Clay masonry units
EN 1365-4:1999 Fire resistance tests for loadbearing elements - Part 4: Columns
EN 1996-2:2006/AC:2009 EUROCODE 6 - DESIGN OF MASONRY STRUCTURES - PART 2: DESIGN CONSIDERATIONS, SELECTION OF MATERIALS AND EXECUTION OF MASONRY
EN 1363-2:1999 Fire resistance tests - Part 2: Alternative and additional procedures
EN 1990:2002/A1:2005/AC:2010 EUROCODE - BASIS OF STRUCTURAL DESIGN
EN 13279-1:2008 Gypsum binders and gypsum plasters - Part 1: Definitions and requirements
EN 771-5:2011+A1:2015 Specification for masonry units - Part 5: Manufactured stone masonry units
EN 771-2:2011+A1:2015 Specification for masonry units - Part 2: Calcium silicate masonry units
EN 772-13:2000 Methods of test for masonry units - Part 13: Determination of net and gross dry density of masonry units (except for natural stone)
EN 998-1:2016 Specification for mortar for masonry - Part 1: Rendering and plastering mortar

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