CEN/TC 250/SC 6 - Eurocode 6: Design of masonry structures

1.1   Scope of prEN 1996-1-2
(1) This document gives rules for the design of masonry structures for the accidental situation of fire exposure. This document only identifies differences from, or supplements to, normal temperature design.
(2) This document applies to structures, or parts of structures, that are within the scope of EN 1996-1-1 or EN 1996-3 and are designed accordingly.
(3) This document gives rules for the design of structures for specified requirements in respect of the aforementioned functions and the levels of performance.
(5) This document does not cover masonry built with natural stone units according to EN 771-6.
(6) This document deals with:
-   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.
1.2   Assumptions
(1) The assumptions of EN 1990 and EN 1996-1-1 apply to this document.
(2) This document is intended to be used together with EN 1990, EN 1991-1-2, EN 1996-1-1, EN 1996 2 and EN 1996-3.
(3) In addition to the general assumptions of EN 1990 and EN 1996-1-1, the following assumptions apply:
-   the choice of the relevant design fire scenario is made by appropriate qualified and experienced personnel, or is given by the relevant national regulation;
-   any fire protection measure taken into account in the design will be adequately maintained.

(1) This document gives basic rules for the selection of materials and execution of masonry to enable it to comply with the design assumptions of the other parts of Eurocode 6.
(2) This document deals with ordinary aspects of masonry design and execution including:
-   selection of masonry materials;
-   factors affecting the performance and durability of masonry;
-   masonry detailing, joint finishes, movement joints, resistance of buildings to moisture penetration;
-   storage, preparation and use of materials on site;
-   execution of masonry;
-   masonry protection during execution;
(3) This document does not cover the following items:
-   aesthetic aspects;
-   applied finishes;
1.2   Assumptions
(1) The assumptions of EN 1990 apply to this document.
(2) This document is intended to be used together with EN 1990, EN 1991, EN 1996 1-1, EN 1996-1-2 and EN 1996-3.
(3) The design of masonry is carried out in accordance with EN 1996 1 1.

1.1   Scope of EN 1996-3
(1)   This document provides simplified calculation methods to facilitate the design of the following unreinforced masonry walls, subject to certain conditions of application:
-   walls subjected to vertical and wind loading;
-   walls subjected to concentrated loads;
-   shear walls;
-   basement walls subjected to lateral earth pressure and vertical loading;
-   walls subjected to lateral loading but not subjected to vertical loading.
NOTE 1   For those types of masonry structures or parts of structures not covered by (1), the design can be based on EN 1996-1-1.
NOTE 2   The rules given in this document are consistent with those given in EN 1996-1-1 but are more conservative in respect of the conditions and limitations of their use.
(2) This document applies only to those masonry structures, or parts thereof, that are described in EN 1996-1-1 and EN 1996-2.
(3) The simplified calculation methods given in this document do not cover the design of double-leaf walls.
(4) The simplified calculation methods given in this document do not cover the design for accidental situations.
1.2   Assumptions
(1) The assumptions of EN 1990 apply to this document.
(2) This document is intended to be used, for direct application, together with EN 1990, the EN 1991 series, EN 1996 1-1, EN 1996-1-2 and EN 1996-2.
(3) The rules given in this document assume that concrete floors are designed according to EN 1992-1-1.

(1) The basis for the design of building and civil engineering works in masonry is given in this Part 1-1 of EN 1996, which deals with unreinforced masonry, reinforced masonry and confined masonry. Principles for the design of prestressed masonry are also given. This Part 1-1 of EN 1996 is not valid for masonry elements with a plan area of less than 0,04 m2.
(2) For those types of structures not covered entirely, for new structural uses for established materials, for new materials, or where actions and other influences outside normal experience have to be resisted, the provisions given in this Part 1-1 of EN 1996 may be applicable, but may need to be supplemented.
(3) Part 1-1 of EN 1996 gives detailed rules which are mainly applicable to ordinary buildings. The applicability of these rules may be limited, for practical reasons or due to simplifications; any limits of applicability are given in the text where necessary.
(4) Part 1-1 of EN 1996 does not cover:
-   resistance to fire (which is dealt with in EN 1996-1-2);
-   particular aspects of special types of building (for example, dynamic effects on tall buildings);
-   particular aspects of special types of civil engineering works (such as masonry bridges, dams, chimneys or liquid-retaining structures);
-   particular aspects of special types of structures (such as arches or domes);
-   masonry where gypsum, with or without cement, mortars are used;
-   masonry where the units are not laid in a regular pattern of courses (rubble masonry);
-   masonry reinforced with other materials than steel.

(1)P The basis for the design of buildings and civil engineering works in masonry is given in this Part 1-1 of Eurocode 6, which deals with unreinforced masonry and reinforced masonry where the reinforcement is added to provide ductility, strength or improve serviceability. The principles of the design of prestressed masonry and confined masonry are given, but application rules are not provided. This Part is not valid for masonry with a plan area of less than 0,04 m2.
(2) For those types of structures not covered entirely, for new structural uses for established materials, for new materials, or where actions and other influences outside normal experience have to be resisted, the principles and application rules given in this EN may be applicable, but may need to be supplemented.
(3) Part 1-1 gives detailed rules which are mainly applicable to ordinary buildings. The applicability of these rules may be limited, for practical reasons or due to simplifications; any limits of applicability are given in the text where necessary.

TC - Modifications to the English mother version to the Foreword, to Clauses 1, 2 and 5 and to Annexes B, C and D.
2013: Originator of XML version: first setup pilot of CCMC in 2012

TC - Modifications in the E mother reference version in "National Annex for EN 1996-2", in 3.3.2 and in A.2.
2013: Originator of XML version: first setup pilot of CCMC in 2012

(1)P The scope of Eurocode 6 for Masonry Structures as given in 1.1.1 of EN 1996-1-1 applies also to this Part 2.
(2)P Part 2 of Eurocode 6 gives basic rules for the selection of materials and execution of masonry to enable it to comply with the design assumptions of the other parts of Eurocode 6. With the exception of the items given in 1.1(3)P, the scope of Part 2 deals with ordinary aspects of masonry design and execution including:
   the selection of masonry materials;
   factors affecting the performance and durability of masonry;
   resistance of buildings to moisture penetration;
   storage, preparation and use of materials on site;
   the execution of masonry;
   masonry protection during execution;
NOTE 1. Where general guidance only is given, additional guidance based on local conditions and practice may be made available in non contradictory complementary documents which may be referred to in the National Annex.
NOTE 2. The scope of Eurocode 6 excludes seismic, thermal and acoustic functional performance of masonry structures;
(3)P Part 2 of Eurocode 6 does not cover the following items:
   those aspects of masonry covered in other parts of Eurocode 6;
   aesthetic aspects;
   applied finishes;
   health & safety of persons engaged in the design or execution of masonry;
   the environmental effects of masonry buildings, civil engineering works and structures on their surroundings.

(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.

TC - Modifications to Subclause 4.2.1.2 and to Clause D.1 in the E mother reference version.
2013: Originator of XML version: first setup pilot of CCMC in 2012

(1)P This Part 3 of Eurocode 6 provides simplified calculation methods to facilitate the design of the following unreinforced masonry walls, subject to certain conditions of application:
   walls subjected to vertical loading and wind loading;
   walls subjected to concentrated loads;
   shear walls;
   basement walls subjected to lateral earth pressure and vertical loads;
   walls subjected to lateral loads but not subjected to vertical loads.
(2)P The rules given in Part 3 are consistent with those given in Part 1-1, but are more conservative in respect of the conditions and limitations of their use.
(3) For those types of masonry structure or parts of structures not covered by (1), the design shall be based on Part 1-1.
(4) This Part 3 applies only to those masonry structures, or parts thereof, that are described in Part 1-1 and Part 2.
(5) The simplified calculation methods given in this Part 3 do not cover the design for accidental situations.

1.1.1   Scope of Eurocode 6
(1)P Eurocode 6 applies to the design of buildings and civil engineering works, or parts thereof, in unreinforced, reinforced, prestressed and confined masonry.
(2)P Eurocode 6 deals only with the requirements for resistance, serviceability and durability of structures. Other requirements, for example, concerning thermal or sound insulation, are not considered.
(3)P Execution is covered to the extent that is necessary to indicate the quality of the construction materials and products that should be used and the standard of workmanship on site needed to comply with the assumptions made in the design rules.
(4)P Eurocode 6 does not cover the special requirements of seismic design. Provisions related to such requirements are given in Eurocode 8 which complements, and is consistent with Eurocode 6.
(5)P Numerical values of the actions on buildings and civil engineering works to be taken into account in the design are not given in Eurocode 6. They are provided in Eurocode 1.
1.1.2   Scope of Part 1-1 of Eurocode 6
(1)P The basis for the design of buildings and civil engineering works in masonry is given in this Part 1-1 of Eurocode 6, which deals with unreinforced masonry and reinforced masonry where the reinforcement is added to provide ductility, strength or improve serviceability. The principles of the design of prestressed masonry and confined masonry are given, but application rules are not provided. This Part is not valid for masonry with a plan area of less than 0,04 m2.
(2) For those types of structures not covered entirely, for new structural uses for established materials, for new materials, or where actions and other influences outside normal experience have to be resisted, the principles and application rules given in this EN may be applicable, but may need to be supplemented.
(3) Part 1-1 gives detailed rules which are mainly applicable to ordinary buildings. The applicability of these rules may be limited, for practical reasons or due to simplifications; any limits of applicability are given in the text where necessary.
(4)P The following subjects are dealt with in Part 1-1:
-   section 1 : General;
-   section 2 : Basis of design;
-   section 3 : Materials;
-   section 4 : Durability;
-   section 5 : Structural analysis;
-   section 6 : Ultimate Limit State;
-   section 7 : Serviceability Limit State;
-   section 8 : Detailing;
-   section 9 : Execution;
(5)P Part 1-1 does not cover:
-   resistance to fire (which is dealt with in EN 1996-1-2);
-   particular aspects of special types of building (for example, dynamic effects on tall buildings);
-   particular aspects of special types of civil engineering works (such as masonry bridges, dams, chimneys or liquid retaining structures);
-   particular aspects of special types of structures (such as arches or domes);
-   masonry where gypsum, with or without cement, mortars are used;
-   masonry where the units are not laid in a regular pattern of courses (rubble masonry);
-   masonry reinforced with other materials than steel.
1.2   Normative references
1.2.1   General
(1)P This European standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to, or revisions of, any of these publications apply to this European standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments).

TC - Modifications in the E mother reference version in "Links between Eurocodes and...", in "National annex for EN 1996-1-1", in Clauses 1 to 8 and in Annexes C, E, G and H.
2013: Originator of XML version: first setup pilot of CCMC in 2012

General rules for the structural design of buildings and civil engineering works in reinforced, unreinforced, prestressed and confined masonry. Detailed rules for use in structural design of buildings.

This ENV 1996-3 provides either simplified calculation methods or simple rules to facilitate the design of the following unreinforced masonry walls, subject to certain conditions of application. Simplified calculation methods are given for: - walls subjected to vertical loading, including wind loading; - walls subjected to concentrated loads; - shear walls; - basement walls subjected to lateral earth pressure and vertical loads; - walls subjected to vertical loading where the height of the building does not exceed 3 storeys above ground level;...

The scope of Eurocode 6 for Masonry Structures as given in 1.1.1 of ENV 1996-1-1 applies also to this Part 2. This Part 2 provides the necessary Principles and Application Rules for masonry to be designed and constructed satisfactorily in order to comply with the design assumptions of the other Parts of Eurocode 6. Except for the items as given in 1.1(3)P, it deals with ordinary aspects of masonry design and construction including: - the selection of materials; - methods of combining masonry materials and of incorporating other materials
required to give functional performance;...

(1)P This Part 1-3 of ENV 1996 deals with the design of unreinforced masonry walls subjected to lateral wind loads and horizontal accidental loads (other than seismic actions) and shall be used in conjunction with ENV 1996-1-1. (2) This Part 1-3 of ENV 1996 gives Principles and Application Rules (see clause 1.2 in ENV 1996-1-1) for designing structures for specified requirements in respect of the aforementioned functions and levels of performance.

Migrated from Progress Sheet (TC Comment) (2000-07-10): All dates refer to ENV. No Enquiry nor stanstill. ++ REAL dates of ENV taken out bec. of 2-Y-R; REAL32 =9201; REAL40/49=9403; ++ REAL41/51/53=9406; REAL60 = 9506.

Migrated from Progress Sheet (TC Comment) (2000-07-10): All dates refer to ENV. No Enquiry nor standstill. ++ Dates of ENV taken out bec. of 2-Y-R; REAL32=9211,REAL40/REAL49=9403, REAL41/51 ++ = 9406, REAL60 = 9507.