prEN 1996-3
(Main)Eurocode 6 - Design of masonry structures - Part 3: Simplified calculation methods for unreinforced masonry structures
Eurocode 6 - Design of masonry structures - Part 3: Simplified calculation methods for unreinforced masonry structures
1.1 Scope of prEN 1996 3
(1) The scope of EN 1996-1-1 applies also to this this document.
(2) 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 loads;
- 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.
NOTE For those types of masonry structures or parts of structures not covered by (2), the design can be based on EN 1996-1-1.
(3) 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.
(4) The rules given in this document assume that concrete floors are designed according to EN 1992 1 1.
(5) This document applies only to those masonry structures, or parts thereof, that are described in EN 1996-1-1 and EN 1996-2.
(6) The simplified calculation methods given in this document do not cover the design of double-leaf walls.
(7) 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.
Eurocode 6 - Bemessung und Konstruktion von Mauerwerksbauten - Teil 3: Vereinfachte Berechnungsmethoden für unbewehrte Mauerwerksbauten
1.1 Anwendungsbereich von prEN 1996 3
(1) Der Anwendungsbereich von EN 1996 1 1 gilt auch für dieses Dokument.
(2) Dieses Dokument enthält vereinfachte Berechnungsmethoden, mit denen die Bemessung und Konstruktion der folgenden unbewehrten Mauerwerkswände unter bestimmten Anwendungsbedingungen erleichtert werden:
- vertikal und durch Windlast beanspruchte Wände;
- Wände unter Einzellasten;
- Wandscheiben;
- Kellerwände, beansprucht durch horizontalen Erddruck und vertikale Lasten;
- horizontal, jedoch nicht vertikal beanspruchte Wände.
ANMERKUNG Tragwerke oder Teile von Tragwerken aus Mauerwerk, die nicht den unter (2) genannten entsprechen, können nach prEN 1996 1 1 bemessen werden.
(3) Die in diesem Dokument angegebenen Regeln entsprechen denen in EN 1996 1 1, sind jedoch hinsichtlich der Anwendungsbedingungen und -grenzen konservativer.
(4) Die in diesem Dokument angegebenen Regeln setzen voraus, dass Betondecken nach EN 1992 1 1 bemessen sind.
(5) Dieses Dokument gilt nur für die Mauerwerksbauten oder Teile von diesen, die in prEN 1996 1 1 und EN 1996 2 beschrieben sind.
(6) Die in diesem Dokument angegebenen vereinfachten Berechnungsmethoden gelten nicht für die Bemessung von zweischaligen Wänden ohne Luftschicht.
(7) Die in diesem Dokument angegebenen vereinfachten Berechnungsmethoden gelten nicht für die Bemessung von außergewöhnlichen Einwirkungen.
1.2 Annahmen
(1) Für dieses Dokument gelten die Annahmen von prEN 1990.
Eurocode 6 - Calcul des ouvrages en maçonnerie - Partie 3: Méthodes de calcul simplifiées pour les ouvrages en maçonnerie non armée
1.1 Domaine d'application du prEN 1996 3
(1) Le domaine d'application du prEN 1996-1-1 s'applique aussi au présent document.
(2) Le présent document énonce des méthodes de calcul simplifiées destinées à faciliter le calcul des murs en maçonnerie non armée suivants, soumis à certaines conditions d'application :
- murs soumis à des charges verticales, et aux charges dues au vent ;
- murs soumis à des charges concentrées ;
- murs de contreventement ;
- murs de soubassement soumis à une poussée latérale des terres et à des charges verticales ;
- murs soumis à des charges latérales, mais non soumis à des charges verticales.
NOTE Pour les types d'ouvrages ou parties d'ouvrages en maçonnerie non couverts par (2), le calcul peut être effectué sur la base du prEN 1996-1-1.
(3) Les règles données dans le présent document sont cohérentes avec celles données dans le prEN 1996-1-1, mais sont plus conservatrices en ce qui concerne les conditions et les limitations de leur emploi.
(4) Les règles données dans le présent document admettent par hypothèse que les planchers en béton sont calculés conformément à l'EN 1992 1 1.
(5) Le présent document s'applique uniquement aux ouvrages en maçonnerie, ou aux parties de ces ouvrages, décrits dans le prEN 1996-1-1 et l'EN 1996-2.
(6) Les méthodes de calcul simplifiées données dans le présent document ne s'appliquent pas aux murs à double paroi.
(7) Les méthodes de calcul simplifiées données dans le présent document ne s'appliquent pas aux situations accidentelles.
1.2 Hypothèses
(1) Les hypothèses du prEN 1990 s'appliquent au présent document.
Evrokod 6: Projektiranje zidanih konstrukcij - 3. del: Poenostavljene računske metode za nearmirane zidane konstrukcije
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 1996-3:2021
01-december-2021
Evrokod 6: Projektiranje zidanih konstrukcij - 3. del: Poenostavljene računske
metode za nearmirane zidane konstrukcije
Eurocode 6 - Design of Masonry structures - Part 3: Simplified calculation methods for
unreinforced masonry structuresEurocode 6 - Bemessung und Konstruktion von Mauerwerksbauten - Teil 3: Vereinfachte
Berechnungsmethoden für unbewehrte MauerwerksbautenEurocode 6 - Calcul des ouvrages en maçonnerie - Partie 3: Méthodes de calcul
simplifiées pour les ouvrages en maçonnerie non armée
Ta slovenski standard je istoveten z: prEN 1996-3
ICS:
91.010.30 Tehnični vidiki Technical aspects
91.080.30 Zidane konstrukcije Masonry
oSIST prEN 1996-3:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------oSIST prEN 1996-3:2021
---------------------- Page: 2 ----------------------
oSIST prEN 1996-3:2021
DRAFT
EUROPEAN STANDARD
prEN 1996-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2021
ICS 91.010.30; 91.080.30 Will supersede EN 1996-3:2006
English Version
Eurocode 6 - Design of Masonry structures - Part 3:
Simplified calculation methods for unreinforced masonry
structures
Eurocode 6 - Calcul des ouvrages en maçonnerie - Eurocode 6 - Bemessung und Konstruktion von
Partie 3: Méthodes de calcul simplifiées pour les Mauerwerksbauten - Teil 3: Vereinfachte
ouvrages en maçonnerie non armée Berechnungsmethoden für unbewehrteMauerwerksbauten
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 250.If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1996-3:2021 E
worldwide for CEN national Members.---------------------- Page: 3 ----------------------
oSIST prEN 1996-3:2021
prEN 1996-3:2021 (E)
Contents Page
European foreword ....................................................................................................................................................... 4
0 Introduction ...................................................................................................................................................... 5
1 Scope .................................................................................................................................................................... 7
1.1 Scope of prEN 1996-3 ..................................................................................................................................... 7
1.2 Assumptions ...................................................................................................................................................... 7
2 Normative references .................................................................................................................................... 7
3 Terms, definitions and symbols ................................................................................................................. 8
3.1 Terms relating to wall types ....................................................................................................................... 8
3.2 Symbols ............................................................................................................................................................... 8
4 Basis of design .................................................................................................................................................. 9
4.1 General rules ..................................................................................................................................................... 9
4.1.1 Basic requirements ........................................................................................................................................ 9
4.2 Principles of limit state design ................................................................................................................... 9
4.3 Basic variables ................................................................................................................................................. 9
4.3.1 Actions ................................................................................................................................................................. 9
4.3.2 Material, and product properties .............................................................................................................. 9
4.4 Verification by the partial factor method ............................................................................................ 10
4.4.1 Design values of actions ............................................................................................................................. 10
4.4.2 Design values of material properties .................................................................................................... 10
4.4.3 Combination of actions .............................................................................................................................. 10
4.4.4 Ultimate limit states .................................................................................................................................... 10
5 Materials .......................................................................................................................................................... 10
5.1 General ............................................................................................................................................................. 10
5.2 Characteristic compressive strength of masonry ............................................................................. 11
5.3 Characteristic flexural strength of masonry ...................................................................................... 11
6 Design of unreinforced masonry walls using simplified calculation methods ...................... 11
6.1 General ............................................................................................................................................................. 11
6.2 Conditions for application ........................................................................................................................ 11
6.3 Walls subjected to vertical and wind loading .................................................................................... 13
6.3.1 General ............................................................................................................................................................. 13
6.3.2 Effective height of walls ............................................................................................................................. 13
6.3.3 Vertical load resistance ............................................................................................................................. 15
6.3.4 Walls subjected to wind load ................................................................................................................... 19
6.4 Walls subjected to concentrated loads ................................................................................................. 19
6.5 Walls subjected to inplane shear loading ............................................................................................ 20
6.6 Basement walls subjected to lateral earth pressure ....................................................................... 20
6.7 Partition walls subjected to limited lateral load but no vertical loads .................................... 22
6.8 Walls subjected to uniform lateral load but no vertical loads ..................................................... 22
Annex A (informative) Simplified calculation method for shear walls ................................................. 23
A.1 Use of this Informative Annex ................................................................................................................. 23
A.2 Scope and field of application .................................................................................................................. 23
A.3 Method ............................................................................................................................................................. 23
---------------------- Page: 4 ----------------------oSIST prEN 1996-3:2021
prEN 1996-3:2021 (E)
Annex B (informative) Simplified calculation method for the design of partition walls not
designed for vertical loads and with limited lateral load .............................................................. 25
B.1 Use of this Informative Annex .................................................................................................................. 25
B.2 Scope and field of application .................................................................................................................. 25
B.3 Conditions for use ......................................................................................................................................... 25
B.4 Minimum wall thickness and limiting dimensions .......................................................................... 26
Annex C (informative) Simplified calculation method for the design of walls subjected to
uniform lateral design load and no vertical loads ............................................................................ 29
C.1 Use of this Informative Annex .................................................................................................................. 29
C.2 Scope and field of application .................................................................................................................. 29
C.3 Method .............................................................................................................................................................. 29
Annex D (normative) Simplified method of determining the characteristic strengths of
masonry ........................................................................................................................................................... 35
D.1 Use of this annex ........................................................................................................................................... 35
D.2 Scope and field of application .................................................................................................................. 35
D.3 Characteristic compressive strength ..................................................................................................... 35
D.4 Characteristic flexural strengths ............................................................................................................ 38
Bibliography ................................................................................................................................................................. 40
---------------------- Page: 5 ----------------------oSIST prEN 1996-3:2021
prEN 1996-3:2021 (E)
European foreword
This document (prEN 1996-3:2021) has been prepared by Technical Committee CEN/TC 250
“Structural Eurocodes”, the secretariat of which is held by BSI. CEN/TC 250 is responsible for all
Structural Eurocodes and has been assigned responsibility for structural and geotechnical design
matters by CEN.This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1996-3:2006, including EN 1996-3:2006/AC:2009.
The first generation of EN Eurocodes was published between 2002 and 2007. This document forms part
of the second generation of the Eurocodes, which have been prepared under a Mandate M/515 given to
CEN by the European Commission and the European Free Trade Association.The Eurocodes have been drafted to be used in conjunction with relevant execution, material, product
and test standards, and to identify requirements for execution, materials, products and testing that are
relied upon by the Eurocodes.The Eurocodes recognize the responsibility of each Member State and have safeguarded their right to
determine values related to regulatory safety matters at national level through the use of National
Annexes.---------------------- Page: 6 ----------------------
oSIST prEN 1996-3:2021
prEN 1996-3:2021 (E)
0 Introduction
0.1 Introduction to the Eurocodes
The Structural Eurocodes comprise the following standards generally consisting of a number of Parts:
— EN 1990 Eurocode: Basis of structural and geotechnical design— EN 1991 Eurocode 1: Actions on structures
— EN 1992 Eurocode 2: Design of concrete structures
— EN 1993 Eurocode 3: Design of steel structures
— EN 1994 Eurocode 4: Design of composite steel and concrete structures
— EN 1995 Eurocode 5: Design of timber structures
— EN 1996 Eurocode 6: Design of masonry structures
— EN 1997 Eurocode 7: Geotechnical design
— EN 1998 Eurocode 8: Design of structures for earthquake resistance
— EN 1999 Eurocode 9: Design of aluminium structures
—
The Eurocodes are intended for use by designers, clients, manufacturers, constructors, relevant
authorities (in exercising their duties in accordance with national or international regulations),
educators, software developers, and committees drafting standards for related product, testing and
execution standards.NOTE Some aspects of design are most appropriately specified by relevant authorities or, where not
specified, can be agreed on a project-specific basis between relevant parties such as designers and clients. The
Eurocodes identify such aspects making explicit reference to relevant authorities and relevant parties.
0.2 Introduction to EN 1996 Eurocode 6EN 1996 Eurocode 6 standards, applies to the design of building and civil engineering works, or parts
thereof, in unreinforced, reinforced, prestressed and confined masonry.EN 1996 deals only with the requirements for resistance, serviceability and durability of structures.
Other requirements, for example, concerning thermal or sound insulation, are not considered.
EN 1996 does not cover the special requirements of seismic design. Provisions related to such
requirements are given in EN 1998, which complements, and is consistent with EN 1996.
EN 1996 does not cover numerical values of the actions on building and civil engineering works to be
taken into account in the design. They are provided in EN 1991.0.3 Introduction to prEN 1996-3
This document describes simplified calculation methods to facilitate the design of unreinforced
masonry walls based on the principles from EN 1996-1-1.---------------------- Page: 7 ----------------------
oSIST prEN 1996-3:2021
prEN 1996-3:2021 (E)
This document is intended to be used, for direct application, together with EN 1990, EN 1991,
EN 1996-1-1, EN 1996-1-2 and EN 1996-2.0.4 Verbal forms used in the Eurocodes
The verb “shall" expresses a requirement strictly to be followed and from which no deviation is
permitted in order to comply with the Eurocodes.The verb “should” expresses a highly recommended choice or course of action. Subject to national
regulation and/or any relevant contractual provisions, alternative approaches could be used/adopted
where technically justified.The verb “may" expresses a course of action permissible within the limits of the Eurocodes.
The verb “can" expresses possibility and capability; it is used for statements of fact and clarification of
concepts.0.5 National annex for prEN 1996-3
National choice is allowed in this standard where explicitly stated within notes. National choice includes
the selection of values for Nationally Determined Parameters (NDPs).The national standard implementing this document can have a National Annex containing all national
choices to be used for the design of buildings and civil engineering works to be constructed in the
relevant country.When no national choice is given, the default choice given in this standard is to be used.
When no national choice is made and no default is given in this standard, the choice can be specified by
a relevant authority or, where not specified, agreed for a specific project by appropriate parties.
National choice is allowed in prEN 1996-3 through notes to the following:4.4.4 (1) 6.2 (1) – 2 choices D.1 (1) D.2 (1)
National choice is allowed in prEN 1996-3 on the application of the informative annexes:
Annex A Annex C Annex D, D.3 (1) – 6 choices Annex D, D.4 (1) – 2 choicesAnnex B
The National Annex can contain, directly or by reference, non-contradictory complementary
information for ease of implementation, provided it does not alter any provisions of the Eurocodes.
---------------------- Page: 8 ----------------------oSIST prEN 1996-3:2021
prEN 1996-3:2021 (E)
1 Scope
1.1 Scope of prEN 1996-3
(1) The scope of prEN 1996-1-1 applies also to this this document.
(2) 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 loads;
— 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.
NOTE For those types of masonry structures or parts of structures not covered by (2), the design can be
based on prEN 1996-1-1.(3) The rules given in this document are consistent with those given in prEN 1996-1-1, but are more
conservative in respect of the conditions and limitations of their use.(4) The rules given in this document assume that concrete floors are designed according to
EN 1992-1-1.(5) This document applies only to those masonry structures, or parts thereof, that are described in
prEN 1996-1-1 and EN 1996-2.(6) The simplified calculation methods given in this document do not cover the design of double-leaf
walls.(7) The simplified calculation methods given in this document do not cover the design for accidental
situations.1.2 Assumptions
(1) The assumptions of prEN 1990 apply to this document.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
NOTE See the Bibliography for a list of other documents cited that are not normative references, including
those referenced as recommendations (i.e. in ‘should’ clauses), permissions (‘may’ clauses), possibilities ('can'
clauses), and in notes.prEN 1990, Eurocode — Basis of structural and geotechnical design
EN 1991 (all parts), Eurocode 1: Actions on structures
prEN 1996-1-1:2019, Eurocode 6 — Design of masonry structures — Part 1-1: General rules for
reinforced and unreinforced masonry structuresEN 1996-2, Eurocode 6 — Design of masonry structures - Part 2: Design considerations, selection of
materials and execution of masonryEN 1997-1, Eurocode 7 — Geotechnical design - Part 1: General rules
---------------------- Page: 9 ----------------------
oSIST prEN 1996-3:2021
prEN 1996-3:2021 (E)
3 Terms, definitions and symbols
For the purposes of this document, the terms and definitions given in prEN 1990, prEN 1996-1-1 and
the following apply.3.1 Terms relating to wall types
3.1.1
basement wall
retaining masonry wall constructed partly or fully below ground level
3.2 Symbols
For the purposes of this document, the material-independent symbols given in prEN 1990, the material-
dependent symbols given in prEN 1996-1-1 and the following material-dependent symbols apply.
Latin upper case lettersK earth pressure coefficient;
N design value of the maximum vertical load at mid height of the fill;
Ed,max
N design value of the minimum vertical load at mid height of the fill.
Ed,min
Latin lower case letters
c constant;
h clear storey height;
h average height of the building;
h vertical distance between the ground level and the face of the bottom support of the wall;
h maximum height of a building allowed with the simplified calculation method;l length of a wall in the horizontal direction;
l plan dimension of a building in the x-direction;
l plan dimension of a building in the y-direction;
l spacing of cross walls or other buttressing elements;
l effective span of a floor;
f,ef
l span of floor i;
f,i
l span of floor i perpendicular to the considered wall;
f,ix
l span of floor i parallel to the considered wall;
f,iy
l reference value for the span of the floor;
ref,c
l reference value for the span of the floor;
ref,t
---------------------- Page: 10 ----------------------
oSIST prEN 1996-3:2021
prEN 1996-3:2021 (E)
l length of a shear wall orientated in the x-direction;
l length of a shear wall orientated in the y-direction;
l length of the analysed wall loaded by wind;
t bearing length of the floor or roof on the wall;
w characteristic wind load per unit area;
w design wind load per unit area;
Greek upper case letters
Φ capacity reduction factor;
Greek lower case letters
α is the ratio between the characteristic value of the permanent vertical load in a shear wall
and the design value of the resistance A f of a shear wall;β constant accounting for uniaxial or biaxial load transfer in basement walls;
ρ density of the soil;
ρ reduction factor for the effective height obtained from a simplified rule.
4 Basis of design
4.1 General rules
4.1.1 Basic requirements
(1) The design of masonry structures shall be in accordance with the general rules given in prEN 1990
and the specific design provisions for masonry structures given in prEN 1996-1-1.
4.2 Principles of limit state design(1) For masonry structures, the ultimate limit state and serviceability limit state shall be considered for
all aspects of the structure including ancillary components in the masonry according to prEN 1996-1-1.
4.3 Basic variables4.3.1 Actions
(1) The characteristic values of actions shall be obtained from the relevant parts of EN 1991.
4.3.2 Material, and product properties(1) Properties of materials and construction products and their geometrical data to be used for design
should be those specified in the relevant European Standards (EN), European Technical Specifications
(TS) or according to a transparent and reproducible assessment that complies with all the requirements
of a European Assessment Document (EAD), unless otherwise indicated in this document.
---------------------- Page: 11 ----------------------oSIST prEN 1996-3:2021
prEN 1996-3:2021 (E)
4.4 Verification by the partial factor method
4.4.1 Design values of actions
(1) Partial factors for actions shall be obtained from prEN 1990.
(2) Design values of indirect actions arising from interacting components of other materials shall be
determined using the relevant code and applicable partial safety factors.(3) For serviceability limit states, imposed deformations should be introduced as estimated (mean)
values.4.4.2 Design values of material properties
(1) The design value for a material property is obtained by dividing its characteristic or declared value
by the relevant partial factor for materials, γ .4.4.3 Combination of actions
(1) Combination of actions shall be in accordance with the general rules given in prEN 1990.
4.4.4 Ultimate limit states(1) The relevant values of the partial factor for materials γ shall be specified for the ultimate limit state
either for persistent or transient design situations, or for accidental design situations.
NOTE The value of γ is given in Table 4.1 (NDP) unless the National Annex gives different values for use in a
country.Table 4.1 (NDP) — Partial factors on materials for masonry buildings
Material γ
Masonry made with:
A Units of Category I, designed mortar 2,0
B Units of Category I, prescribed mortar 2,2
a, b, c
C Units of Category II, any mortar 2,5
Requirements for designed mortars are given in EN 998-2 and EN 1996-2.
Requirements for prescribed mortars are given in EN 998-2 and EN 1996-2.
When the coefficient of variation for Category II units is not greater than 25 %.
5 Materials5.1 General
(1) The materials used in the masonry walls referred to in this document shall be in accordance with
prEN 1996-1-1:2019, Clause 5.(2) Masonry units should be grouped as Group 1, Group 1S, Group 2, Group 3 or Group 4 according to
prEN 1996-1-1:2019, 5.1.2.NOTE Normally the manufacturer will state the grouping of units in the product declaration.
(3) Annex D provides a simplified method for the determination of material properties. These material
properties may be used instead of those given in prEN 1996-1-1.---------------------- Page: 12 ----------------------
oSIST prEN 1996-3:2021
prEN 1996-3:2021 (E)
5.2 Characteristic compressive strength of masonry
(1) The characteristic compressive strength of masonry should be determined according to
prEN 1996-1-1:2019, 5.7.1.5.3 Characteristic flexural strength of masonry
(1) The characteristic flexural strength of masonry should be determined according to
prEN 1996-1-1:2019, 5.7.4.6 Design of unreinforced masonry walls using simplified calculation methods
6.1 General
(1) The overall stability of a building, of which the wall forms a part, should be verified.
NOTE A method for verification of the stability is given in Annex A.(2) A structure should have shear walls placed in two orthogonal directions. At least in one direction
two shear walls not in the same plane should be present. When the eccentricity between the resultant of
the wind load and the resulting shear force is smaller than 0,05 times the width of the area loaded by
the wind, the torsional effect may be neglected.(3) The slenderness ratio of a wall h /t should not be greater than 27.
(4) The detailing rules according to prEN 1996-1-1:2019, 10.1 and 10.5 should be taken into account.
(5) An analysis of bending moments in the walls may be omitted, because the simplified calculation
methods take the effects of wind, earth pressure and floor-wall-interaction into account. If other
horizontal loads act on a loadbearing wall or conditions regarding the loads are not fulfilled, the
analysis shall be performed as specified in prEN 1996-1-1.(6) In case of concrete floors, an increase in the eccentricity owing to a change in the position of the axis
of a loadbearing wall from storey to storey due to a change in wall thickness may be neglected, if the
cross-section of the thinner wall falls in plan within that of the thicker one.(7) The analysis of free-standing walls shall be performed in accordance with prEN 1996-1-1.
6.2 Conditions for application(1) For use of the simplified method, the following conditions shall be complied with:
— the height of the building above ground level does not exceed h ; for buildings with a sloping roof
the height h shall be determined as average height h indicated in Figure 6.1;m a
Figure 6.1 — Determination of average height
---------------------- Page: 13 ----------------------
oSIST prEN 1996-3:2021
prEN 1996-3:2021 (E)
NOTE 1 The value of h is 20 m, unless the National Annex gives a different value for use in a country.
— the characteristic values of the variable actions on the floors and the roof does not exceed
5,0 kN/m ;— the span of the roof and the floors supported by the walls does not exceed 7,0 m, except in the case
of a lightweight trussed roof structure where the span shall not exceed 14,0 m;— the clear wall height of loadbearing walls does not exceed 4,0 m; for bearing lengths t /t < 0,65 the
clear wall height of loadbearing walls does not exceed 3,0 m;— the minimum thickness is according to prEN 1996-1-1:2019, 10.1.2;
— the maximum clear height of walls acting as end support to floors or the roof is additionally limited
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.