SIST EN 1996-1-2:2005/AC:2011 - Eurocode 6

Eurocode 6 - Design of masonry structures - Part 1-2: General rules - Structural fire design

(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.

Eurocode 6 - Bemessung und Konstruktion von Mauerwerksbauten - Teil 1-2: Allgemeine Regeln - Tragwerksbemessung für den Brandfall

Eurocode 6 - Calcul des ouvrages en maçonnerie - Partie 1-2: Règles générales - Calcul du comportement au feu

Evrokod 6: Projektiranje zidanih konstrukcij - 1-2. del: Splošna pravila - Požarnoodporno projektiranje

(1)P Ta 1-2. del EN 1996 obravnava projektiranje zidanih konstrukcij za nezgodno izpostavljenost ognju in se uporablja skupaj z EN 1996-1-1, EN 1996-2, 1996-3 in EN 1991-1-2. Ta 1-2. del le prepoznava odstopanja projektiranja pri običajni temperaturi ali njegove dopolnitve.
(2)P Ta 1-2. del obravnava pasivne metode zaščite pred ognjem. Aktivne metode niso
zajete.
3(P) Ta 1-2. del velja za zidane konstrukcije, ki morajo zaradi razlogov splošne varnosti pred ognjem izpolnjevati določene funkcije, kadar so izpostavljene ognju, glede:
- izogibanja prezgodnjemu sesedanju konstrukcij (funkcija nosilnosti bremena);
- omejevanje širjenja ognja (plamen, vroči plini, čezmerna vročina) prek določenih območij (funkcija ločevanja).
(4)P Ta 1-2. del podaja načela in pravila za uporabo za projektiranje konstrukcij za določene zahteve glede na zgoraj omenjene funkcije in ravni delovanja.
(5)P Ta 1-2. del velja za konstrukcije ali dele konstrukcij, ki so na področju uporabe EN 1996-1-1, EN 1996-2 in EN 1996-3, ter so skladno s tem projektirani.
(6)P Ta 1-2. del ne zajema z naravnim kamnom zidanih enot, ki jih zajema EN771-6.
(7)P Ta 1.-2. del obravnava:
- nenosilne notranje zidove;
- nenosilne zunanje zidove;
- nosilne notranje zidove s funkcijami ločevanja ali funkcijami, ki ne ločujejo;
- nosilne zunanje zidove s funkcijami ločevanja ali funkcijami, ki ne ločujejo.

General Information

Status

Published

Publication Date

19-Jan-2011

ICS

13.220.50 - Fire-resistance of building materials and elements

91.010.30 - Technical aspects

91.080.30 - Masonry

Technical Committee

KON - Structures

Current Stage

6060 - National Implementation/Publication (Adopted Project)

Start Date

02-Nov-2010

Due Date

07-Jan-2011

Completion Date

20-Jan-2011

Directive

2005-01-4408 - Pravilnik o mehanski odpornosti in stabilnosti objektov

305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec

89/106/EEC - Construction products

Mandate

M/265 - Mandate to CEN for the conversion of the Eurocodes from ENV into EN concerning the structural and geotechnical design of buildings and civil engineering works

M/BC/CEN/89/11 - Framework mandate to CEN on Eurocode work : execution of a standardization programme on Eurocodes for the structural design of building and civil engineering works

Ref Project

EN 1996-1-2:2005/AC:2010 - Eurocode 6 - Design of masonry structures - Part 1-2: General rules - Structural fire design

Relations

Replaced By

kSIST FprEN 1996-1-2:2024 - Eurocode 6 - Design of masonry structures - Part 1-2: General rules - Structural fire design

Effective Date

02-Oct-2024

Corrects

SIST EN 1996-1-2:2005 - Eurocode 6 - Design of masonry structures - Part 1-2: General rules - Structural fire design

Effective Date

22-Aug-2009

Corrigendum

SIST EN 1996-1-2:2005/AC:2011

English language

40 pages

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Standards Content (Sample)

SIST EN 1996-1-2:2005/AC:2011

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Evrokod 6: Projektiranje zidanih konstrukcij - 1-2. del: Splošna pravila - Požarnoodporno projektiranjeEurocode 6 - Bemessung und Konstruktion von Mauerwerksbauten - Teil 1-2: Allgemeine Regeln - Tragwerksbemessung für den BrandfallEurocode 6 - Calcul des ouvrages en maçonnerie - Partie 1-2: Règles générales - Calcul du comportement au feuEurocode 6 - Design of masonry structures - Part 1-2: General rules - Structural fire design91.080.30Zidane konstrukcijeMasonry91.010.30Technical aspects13.220.50Požarna odpornost gradbenih materialov in elementovFire-resistance of building materials and elementsICS:Ta slovenski standard je istoveten z:EN 1996-1-2:2005/AC:2010SIST EN 1996-1-2:2005/AC:2011en,fr,de01-februar-2011SIST EN 1996-1-2:2005/AC:2011SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1996-1-2:2005/AC
October 2010
Octobre 2010
Oktober 2010 ICS 13.220.50; 91.010.30; 91.080.30 English version Version Française Deutsche Fassung
Eurocode 6 - Design of masonry structures - Part 1-2: General rules - Structural fire design
Eurocode 6 - Calcul des ouvrages en maçonnerie - Partie 1-2: Règles générales -Calcul du comportement au feu
Eurocode 6 - Bemessung und Konstruktion von Mauerwerksbauten - Teil 1-2: Allgemeine Regeln - Tragwerksbemessung für den Brandfall This corrigendum becomes effective on 27 October 2010 for incorporation in the three official language versions of the EN.
Ce corrigendum prendra effet le 27 octobre 2010 pour incorporation dans les trois versions linguistiques officielles de la EN.
Die Berichtigung tritt am 27.Oktober 2010 zur Einarbeitung in die drei offiziellen Sprachfassungen der EN in Kraft.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Tous droits d'exploitation sous quelque forme et de quelque manière que ce soit réservés dans le monde entier aux membres nationaux du CEN. Alle Rechte der Verwertung, gleich in welcher Form und in welchem Verfahren, sind weltweit den nationalen Mitgliedern von CEN vorbehalten. Ref. No.:EN 1996-1-2:2005/AC:2010 D/E/FSIST EN 1996-1-2:2005/AC:2011

"EN 1996-3: Simplified calculation methods for unreinforced masonry structures". National Annex for EN 1996-1-2, 2nd paragraph, add a new item at the very beginning of the list: " −−−− 2.1.3(2) Parametric fire exposure;". National Annex for EN 1996-1-2, 2nd paragraph, list, replace "2.2 (2)" with "2.2(2)". National Annex for EN 1996-1-2, 2nd paragraph, list, replace "2.3 (2)" with "2.3(2)P". National Annex for EN 1996-1-2, 2nd paragraph, list, delete the line:
" −−−− 2.4.2(3)
Member analysis;". National Annex for EN 1996-1-2, 2nd paragraph, list, replace "3.3.3.2 (1)" with "3.3.3.2(1)". National Annex for EN 1996-1-2, 2nd paragraph, list, replace "3.3.3.3" with "3.3.3.3(1)". National Annex for EN 1996-1-2, 2nd paragraph, last list entry, replace "constant c" with"constant c". 2 Modification to 1.2 Reference to EN 1996, replace: "EN 1996 Design of masonry structures:
Part 1.1: Common rules for reinforced and unreinforced masonry structures
Part 2: Design, selection of materials and execution of masonry
Part 3: Simplified and simple rules for masonry structures" with: "EN 1996 Design of masonry structures: SIST EN 1996-1-2:2005/AC:2011

Part 1-1: General rules for reinforced and unreinforced masonry structures
Part 2: Design considerations, selection of materials and execution of masonry
Part 3: Simplified calculation methods for unreinforced masonry structures". 3 Modifications to 1.6 1st paragraph, replace "EN 1991-1-1" with "EN 1996-1-1". List of symbols, delete:
"fb characteristic unit strength". List of symbols, delete: "hef effective height of the wall". List of symbols, replace the definition of “.” with the following one: "the ratio of the applied design load on the wall to the design resistance of the wall;". After the line with "∆t" and its definition, add: " ∆Θ1 average temperature rise of the unexposed side; ∆Θ2 maximum temperature rise of the unexposed side at any point;". 4 Modification to 2.1.2 Paragraph (3), replace "140 °K" with "140 K" and replace "180 °K" with "180 K.". 5 Modifications to 2.1.3 Paragraph (2), in the first bullet point, replace "140°K" with "140 K" and "180°K" with "180 K". Paragraph (2), replace the second bullet point with the following one: " - the average temperature rise of the unexposed side of the construction should be limited to ∆Θ1 and the maximum temperature rise of the unexposed side should not exceed ∆Θ2 during the decay phase.". Paragraph (2), add the following NOTE: "NOTE: The recommended values for maximum temperature rise during the decay phase are ∆Θ1 = 200 K and ∆Θ1 = 240 K. The choice to be made at the national level may be given in the National Annex.". 6 Modifications to 2.4.2 Paragraph (1), 1st line, replace "t=0" with "t = 0". SIST EN 1996-1-2:2005/AC:2011

Table N.B.1.1 Clay Masonry Minimum thickness of separating non-loadbearing walls (Criterion EI) for fire resistance classifications row number material properties:
gross dry density ρ
[kg/m³] Minimum wall thickness (mm) tF for fire resistance classification EI for time (minutes) tfi,d 30 45 60 90 120 180 240 1. Group 1S, 1, 2, 3
and 4 units 1.1 mortar : general purpose, thin layer, lightweight 500 ≤ ρ ≤ 2 400 1.1.1 1.1.2
60/100 (50/70) 90/100 (50/70) 90/100 (60/70) 100/140 (70/100) 100/170 (90/140) 160/190 (110/140) 190/210 (170) Table N.B.1.2 Clay masonry minimum thickness of separating loadbearing single-leaf walls (Criteria REI) for fire resistance classifications row number material properties: unit strength fb [N/mm²] gross dry density ρ
[kg/m³] combined thickness ct
% of wall thickness Minimum wall thickness (mm) tF for fire resistance classification REI for time (minutes) tfi,d 30 45 60 90 120 180 240 1S Group 1S units 1S.1
5 ≤ fb ≤ 75 general purpose mortar 5 ≤ fb ≤ 50 thin layer mortar 1 000 ≤ ρ ≤ 2 400 1S.1.1 1S.1.2 α ≤ 1,0 90 (70/90) 90 (70/90) 90 (70/90) 100 (70/90) 100/140 (90/140) 170/190 (110/140) 170/190 (170/190) 1S.1.3 1S.1.4 α ≤ 0,6 90 (70/90) 90 (70/90) 90 (70/90) 100 (70/90) 100/140 (100/140) 170 (110/140) 170 (140/170) 1 Group 1 units mortar:
general purpose, thin layer 1.2
5 ≤ fb ≤ 75
800 < ρ ≤ 2 400 1.2.1 1.2.2 α ≤ 1,0 90/100 (70/90) 90/100 (70/90) 90/100 (70/90) 100/170 (70/90) 140/170 (100/140) 170/190 (110/170) 190/210 (170/190) 1.2.3 1.2.4 α ≤ 0,6 90/100
(70/90) 90/100
(70/90) 90/100
(70/90) 100/140 (70/90) 140/170 (100/140) 140/170 (110/170) 190/200 (170/190) 1.3 5 ≤ fb ≤ 25
500 ≤ ρ ≤ 800 1.3.1 1.3.2 α ≤ 1,0 100 (100) 200 (170) 200 (170) 200 (170) 200/365 (200/300) 200/365 (200/300) 300/370 300/370 1.3.3 1.3.4 α ≤ 0,6 100 (100) 170 (140) 170 (140) 200 (170) 200/365 (200/300) 200/365 (200/300) 300/370 (300/370) 2 Group
2 units 2.1 Mortar: general purpose, thin layer
5 ≤ fb ≤ 35
800 < ρ ≤ 2 200 ct ≥ 25%
2.1.1 2.1.2 α ≤ 1,0 90/100 (90/100) 90/100 (90/100) 90/100 (90/100) 100/170 (100/140) 140/240 (140) 190/240 (190/240) 190/240 (190/240) 2.1.3 2.1.4 α ≤ 0,6 90/100 (90) 90/100 (90) 90/100 (90/100) 100/140 (100/140) 190/240 (100/140) 190/240 (140/190) 190/240 (190) SIST EN 1996-1-2:2005/AC:2011

[kg/m³] combined thickness ct
% of wall thickness Minimum wall thickness (mm) tF for fire resistance classification REI for time (minutes) tfi,d 30 45 60 90 120 180 240 2.2 Mortar: general purpose, thin layer and lightweight 5 ≤ fb ≤ 25
700 ≤ ρ ≤ 800 ct ≥ 25%
2.2.1 2.2.2 α ≤ 1,0 nvg (100) nvg (100) nvg (90/170) nvg (100/240) nvg (140/300) nvg (170/365) nvg nvg 2.2.3 2.2.4 α ≤ 0,6 nvg (100) nvg (100) nvg (90/140) nvg (100/170) nvg (100/300) nvg (170/300) nvg (190/300) 2.3
mortar: general purpose, thin layer and lightweight
5 ≤ fb ≤ 25
500 < ρ ≤ 900 16% ≤ ct < 25%
2.3.1 2.3.2 α ≤ 1,0 nvg (100) nvg (170) nvg (90/170) nvg (140/240) nvg (140/300) nvg (365) nvg nvg 2.3.3 2.3.4 α ≤ 0,6 nvg (100) nvg (140) nvg (90/140) nvg (100/170) nvg (140/300) nvg (300) 190 nvg 3
Group 3
units mortar: general purpose, thin layer and lightweight 3.1 5 ≤ fb ≤ 35 500 ≤ ρ ≤ 1 200 ct ≥ 12% 3.1.1 3.1.2 α ≤ 1,0 nvg (100) nvg (200) nvg (240) nvg (300) nvg (365) nvg (425) nvg nvg 3.1.3 3.1.4 α ≤ 0,6 300/365 (300/365) 300/365 (300/365) 300/365 (300/365) 300/365 (300/365) 300/365 (300/365) 300/365 (300/365) 365 (365) 4
Walls in which holes in units are filled with mortar or concrete mortar: general purpose, thin layer 4.1 10 ≤ fb ≤ 35 500 ≤ ρ ≤ 1 200 ct ≥ 10% 4.1.1 4.1.2 α ≤ 1,0 90/100 (100) 90/100 (100) 90/100 (100) 140/170 (100) 140/240 (140) 170/240 (170/190) 190/240 (190) 4.1.3 4.1.4 α ≤ 0,6 90/100 (90/100) 90/100 (100) 90/100 (90/100) 100/140 (100/140) 100/170 (100/140) 140/240 (140/190) 190/240 (190) 5
Group 4 units mortar: general purpose, thin layer and lightweight 5.1 5 ≤ fb ≤ 35 500 ≤ ρ ≤ 1 200 5.1.1 5.1.2 α ≤ 1,0 nvg (200/240) nvg (200/240) nvg (200/240)nvg (300) nvg (365) nvg (425) nvg nvg 5.1.3 5.1.4 α ≤ 0,6 nvg (200/240) nvg (200/240) nvg (200/240)nvg (240) nvg (300) nvg (365) nvg nvg
% of wall thickness Minimum wall thickness or length (mm) tF for fire resistance classification R for time (minutes) tfi,d 30 45 60 90 120 180 240 1S Group
1S units 1S.1 5 ≤ fb ≤ 75 general purpose mortar 5 ≤ fb ≤ 50 thin layer mortar 1 000 ≤ ρ ≤ 2 400 1S.1.1 1S.1.2 α ≤ 1,0 100 (100) 100 (100) 100 (100) 240 (100) 365 (170) 490 (240) nvg nvg 1S.1.3 1S.1.4 α ≤ 0,6 100 (100) 100 (100) 100 (100) 170 (100) 240 (100) 300 (200) nvg nvg 1 Group 1 units 1.1 mortar: general purpose, thin layer 5 ≤ fb ≤ 75 800 ≤ ρ ≤ 2 400 1.1.1 1.1.2 α ≤ 1,0 100 (100) 100 (100) 100 (100) 240 (100) 365 (170) 490 (240) nvg nvg 1.1.3 1.1.4 α ≤ 0,6 100 (100) 100 (100) 100 (100) 170 (100) 240 (100) 300 (200) nvg nvg 1.2
5 ≤ fb ≤ 25
500 ≤ ρ ≤ 800 1.2.1 1.2.2 α ≤ 1,0 fb < 5 N/mm² 100 (100) 100 (100) 100 (100) 240 (100) 365 (170) 490 (240) nvg nvg 1.2.3 1.2.4 α ≤ 0,6 fb < 3 N/mm² 100 (100) 100 (100) 100 (100) 170 (100) 240 (100) 300 (200) nvg nvg 2 Group
2 units 2.1 mortar: general purpose, thin layer
5 ≤ fb ≤ 35
800 ≤ ρ ≤ 2 200 ct ≥ 25%
2.1.1 2.1.2 α ≤ 1,0 100 (100) 100 (100) 100 (100) 240 (100) 365 (170) 490 (240) nvg nvg 2.1.3 2.1.4 α ≤ 0,6 100 (100) 100 (100) 100 (100) 170 (100) 240 (100) 300 (200) nvg nvg 2.2
5 ≤ fb ≤ 25 700 ≤ ρ ≤ 800 ct ≥ 25% 2.2.1 2.2.2 α ≤ 1,0 100 (100/240) 100 (100/240) 100 (100/240) 240 (100/240) 365 (170/300) 490 (240/365) nvg nvg 2.2.3 2.2.4 α ≤ 0,6 100 (100/170) 100 (100/170) 100 (100/170) 170 (100/240) 240 (100/240) 300 (200/300) nvg nvg 2.3
mortar: general purpose, thin layer and lightweight
5 ≤ fb ≤ 25
500 ≤ ρ ≤ 900 16% ≤ ct ≤ 25%
2.3.1 2.3.2 α ≤ 1,0 nvg (100/240) nvg (100/240) nvg (100/240) nvg (100/240) nvg (170/300) nvg (240/365) nvg nvg 2.3.3 2.3.4 α ≤ 0,6 nvg (100/170) nvg (100/170) nvg (100/170) nvg (100/240) nvg (100/240) nvg (200/300) nvg nvg
3 Group 3 units SIST EN 1996-1-2:2005/AC:2011

% of wall thickness Minimum wall thickness or length (mm) tF for fire resistance classification R for time (minutes) tfi,d 30 45 60 90 120 180 240 3.1 mortar:
general purpose, thin layer and lightweight 5 ≤ fb ≤ 35 500 ≤ ρ ≤ 1 200 ct ≥ 12%
3.1.1 3.1.2 α ≤ 1,0 nvg (100) nvg (170) nvg (240) nvg (300) nvg (365) nvg (425) nvg 3.1.3 3.1.4 α ≤ 0,6 nvg (100) nvg (140) nvg (170) nvg (240) nvg (300) nvg (365) nvg 4 Walls in which holes in units are filled with mortar or concrete
4.1
mortar:
general purpose, thin layer 10 ≤ fb ≤ 35 500 ≤ ρ ≤ 1 200 ct ≥ 10%
4.1.1 4.1.2 α ≤ 1,0 100 (100) 100 (100) 100 (100) 240 (100) 365 (170) 490 (240) nvg nvg 4.1.3 4.1.4 α ≤ 0,6 100 (100) 100 (100) 100 (100) 170 (100) 240 (100) 300 (200) nvg nvg 5 Group 4
units 5.1 mortar: general purpose, thin layer and lightweight 5 ≤ fb ≤ 35 500 ≤ ρ ≤ 1 200 5.1.1 5.1.2 α ≤ 1,0 nvg (100) nvg (170) nvg (240) nvg (300) nvg (365) nvg (425) nvg nvg 5.1.3 5.1.4 α ≤ 0,6 nvg (100) nvg (140) nvg (170) nvg (240) nvg (300) nvg (365) nvg nvg
Table N.B.1.4 Clay masonry minimum length of non-separating loadbearing single-leaf walls <1,0m in length (Criterion R) for fire resistance classifications row
number material properties: unit strength fb [N/mm²] gross dry density ρ [kg/m³] combined thickness ct
% of wall thickness wall thickness [mm] Minimum wall length (mm) lF for fire resistance classification R for time (minutes) tfi,d 30 45 60 90 120 180 240 1S Group 1S units
1S.1 5 ≤ fb ≤ 75 general purpose mortar 5 ≤ fb ≤ 50 thin layer mortar 1 000 ≤ ρ ≤ 2 400 1S.1.1 1S.1.2 α ≤ 1,0 nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg 1S.1.3 1S.1.4 α ≤ 0,6 nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg 1 Group 1 units 1.1 mortar: general purpose, thin layer 5 ≤ fb ≤ 75
800 ≤ ρ ≤ 2 400 1.1.1 1.1.2. α ≤ 1,0 100 990 (490) 990 (600) 990 (600) nvg (730) nvg nvg nvg nvg nvg nvg 1.1.3 1.1.4 170 600 (240) 730 (240) 730 (240) 990 (365) nvg (365) nvg
nvg nvg
nvg SIST EN 1996-1-2:2005/AC:2011

number material properties: unit strength fb [N/mm²] gross dry density ρ [kg/m³] combined thickness ct
% of wall thickness wall thickness [mm] Minimum wall length (mm) lF for fire resistance classification R for time (minutes) tfi,d 30 45 60 90 120 180 240 1.1.5 1.1.6 240 365 (170) 490 (170) 490 (170) 600 (240) nvg (240) nvg (365) nvg
nvg 1.1.7 1.1.8 300 300 (170) 365 (170) 365 (170) 490 (200) nvg (240) nvg (300) nvg
nvg 1.1.9 1.1.10 α ≤ 0,6 100 600 (365) 730 (490) 730 (490) 990 (600) nvg (730) nvg
nvg nvg
nvg 1.1.11 1.1.12 170 490 (240) 600 (240) 600 (240) 730 (240) 990 (300) nvg
nvg nvg
nvg 1.1.13 1.1.14 240 200 (170) 240 (170) 240 (170) 300 (170) 365 (240) 490 (300) nvg
nvg 1.1.15 1.1.16 300 200 (170) 200 (170) 200 (170) 240 (170) 365 (170) 490 (240) nvg
nvg 1.2 mortar: general purpose, thin layer 5 ≤ fb ≤ 25 500 ≤ ρ ≤ 800 1.2.1 1.2.2 α ≤ 1,0 100 990 (490) 990 (600) 990 (600) nvg (730) nvg nvg nvg
nvg nvg
nvg 1.2.3 1.2.4 170 600 (240) 730 (240) 730 (240) 990 (365) nvg (365) nvg
nvg nvg
nvg 1.2.5 1.2.6 240 365 (170) 490 (170) 490 (170) 600 (240) nvg (240) nvg (365) nvg
nvg 1.2.7 1.2.8 300 300 (170) 365 (170) 365 (170) 490 (200) nvg (240) nvg (300) nvg
nvg 1.2.9 1.2.10 α ≤ 0,6 100 600 (365) 730 (490) 730 (490) 990 (600) nvg (730) nvg
nvg nvg
nvg 1.2.11 1.2.12 170 490 (240) 600 (240) 600 (240) 730 (240) 990 (300) nvg
nvg nvg
nvg 1.2.13 1.2.14 240 200 (170) 240 (170) 240 (170) 300 (170) 365 (170) 490 (240) nvg
nvg 1.2.15 1.2.16 300 200 (170) 200 (170) 200 (170) 240 (170) 365 (170) 490 (240) nvg nvg 2 Group
units 2.1 mortar: general purpose, thin layer
5 ≤ fb ≤ 35
800 < ρ ≤ 2 200
ct ≥ 25% 2.1.1 2.1.2 α ≤ 1,0 100 990 (490) 990 (600) 990 (600) nvg (730) nvg nvg nvg nvg nvg
nvg 2.1.3 2.1.4 170 600 (240) 730 (240) 730 (240) 990 (365) nvg (365) nvg
nvg nvg
nvg 2.1.5 2.1.6 240 365 (170) 490 (170) 490 (170) 600 (240) nvg (240) nvg (365) nvg
nvg 2.1.7 2.1.8 300 300 (170) 365 (170) 365 (170) 490 (200) nvg (240) nvg (300) nvg
nvg 2.1.9 2.1.10 α ≤ 0,6 100 600 (365) 730 (490) 730 (490) 990 (600) nvg (730) nvg
nvg nvg
nvg 2.1.11 2.1.12 170 490 (240) 600 (240) 600 (240) 730 (240) 990 (300) nvg
nvg nvg
nvg 2.1.13 2.1.14 240 200 (170) 240 (170) 240 (170) 300 (170) 365 (240) 490 (300) nvg
nvg 2.1.15 2.1.16 300 200 (170) 200 (170) 200 (170) 240 (170) 365 (170) 490 (240) nvg
nvg SIST EN 1996-1-2:2005/AC:2011

number material properties: unit strength fb [N/mm²] gross dry density ρ [kg/m³] combined thickness ct
% of wall thickness wall thickness [mm] Minimum wall length (mm) lF for fire resistance classification R for time (minutes) tfi,d 30 45 60 90 120 180 240 2.2 5 ≤ fb ≤ 25 700 ≤ ρ ≤ 800
ct ≥ 25%
2.2.1 2.2.2 α ≤ 1,0 100 990 (490) 990 (600) 990 (600) nvg (730) nvg
nvg nvg
nvg nvg
nvg 2.2.3 2.2.4 170 600 (240) 730 (240) 730 (240) 990 (365) nvg (365) nvg
nvg nvg
nvg 2.2.5 2.2.6 240 365 (170) 490 (170) 490 (170) 600 (240) nvg (240) nvg (365) nvg
nvg 2.2.7 2.2.8 300 300 (170) 365 (170) 365 (170) 490 (200) nvg (240) nvg (300) nvg
nvg 2.2.9 2.2.10 α ≤ 0,6 100 600 (365) 730 (490) 730 (490) 990 (600) nvg (730) nvg
nvg nvg
nvg 2.2.11 2.2.12 170 490 (240) 600 (240) 600 (240) 730 (240) 990 (300) nvg
nvg nvg
nvg 2.2.13 2.2.14 240 200 (170) 240 (170) 240 (170) 300 (170) 365 (240) 490 (300) nvg
nvg 2.2.15 2.2.16 300 200 (170) 200 (170) 200 (170) 240 (170) 365 (170) 490 (240) nvg
nvg 2.3 5 ≤ fb ≤ 25 500 ≤ ρ ≤ 900
16% < ct
≤ 25%
2.3.1 2.3.2 α ≤ 1,0 100 nvg (490) nvg (600) nvg (600) nvg (730) nvg
nvg nvg
nvg nvg
nvg 2.3.3 2.3.4 170 nvg (240) nvg (240) nvg (240) nvg (240) nvg (365) nvg (365) nvg
nvg 2.3.5 2.3.6 240 nvg (170) nvg (170) nvg (170) nvg (240) nvg (240) nvg (365) nvg
nvg 2.3.7 2.3.8 300 nvg (170) nvg (170) nvg (170) nvg (200) nvg (240) nvg (300) nvg
nvg 2.3.9 2.3.10 α ≤ 0,6 100 nvg (365) nvg (490) nvg (490) nvg (600) nvg (730) nvg
nvg nvg
nvg 2.3.11 2.3.12 170 nvg (240) nvg (240) nvg (240) nvg (240) nvg (300) nvg
nvg nvg
nvg 2.3.13 2.3.14 240 nvg (170) nvg (170) nvg (170) nvg (170) nvg (240) nvg (300) nvg
nvg 2.3.15 2.3.16 300 nvg (170) nvg (170) nvg (170) nvg (170) nvg (170) nvg (240) nvg
nvg 2.3.17 2.3.18 365 nvg (100) nvg (170) nvg (170) nvg (170) nvg (240) nvg (240) nvg
nvg SIST EN 1996-1-2:2005/AC:2011

number material properties: unit strength fb [N/mm²] gross dry density ρ [kg/m³] combined thickness ct
% of wall thickness wall thickness [mm] Minimum wall length (mm) lF for fire resistance classification R for time (minutes) tfi,d 30 45 60 90 120 180 240 3 Group 3 units 3.1 mortar: general purpose and lightweight
5 ≤ fb ≤ 35 500 ≤ ρ ≤ 1 200
ct ≥ 12% 3.1.1 3.1.2 α ≤ 1,0 240 nvg (240) nvg (240) nvg (240) nvg (300) nvg (300) nvg (365) nvg
nvg 3.1.3 3.1.4 300 nvg (240) nvg (240) nvg (240) nvg (240) nvg (240) nvg (300) nvg
nvg 3.1.5 3.1.6 365 nvg (240) nvg (240) nvg (240) nvg (240) nvg (240) nvg (240) nvg
nvg 3.1.7 3.1.8 α ≤ 0,6 240 nvg (240) nvg (240) nvg (240) nvg (240) nvg (240) nvg (365) nvg
nvg 3.1.9 3.1.10 300 nvg (170) nvg (170) nvg (170) nvg (170) nvg (240) nvg (240) nvg
nvg 3.1.11 3.1.12 365 nvg (170) nvg (170) nvg (170) nvg (170) nvg (240) nvg (240) nvg
nvg 4 Walls in which holes in units are filled with mortar or concrete
4.1 mortar: general purpose and thin layer
10 ≤ fb ≤ 35 500 ≤ ρ ≤ 1 200
ct ≥ 10% 4.1.1 4.1.2 α ≤ 1,0 100 990 (490) 990 (600) 990 (600) nvg (730) nvg
nvg nvg
nvg nvg
nvg 4.1.3 4.1.4 170 600 (240) 730 (240) 730 (240) 990 (365) nvg (365) nvg
nvg nvg
nvg 4.1.5 4.1.6 240 365 (240) 490 (170) 490 (170) 600 (240) nvg (2 40) nvg (365) nvg
nvg 4.1.7 4.1.8 300 300 (170) 365 (170) 365 (170) 490 (200) nvg (240) nvg (300) nvg
nvg 4.1.9 4.1.10 α ≤ 0,6 100 600 (365) 730 (490) 730 (490) 990 (600) nvg (730) nvg
nvg nvg
nvg 4.1.11 4.1.12 170 490 (240) 600 (240) 600 (240) 730 (240) 990 (300) nvg
nvg nvg
nvg 4.1.13 4.1.14 240 200 (170) 240 (170) 240 (170) 300 (170) 365 (240) 490 (300) nvg
nvg 4.1.15 4.1.16 300 200 (170) 200 (170) 200 (170) 240 (170) 365 (170) 490 (240) nvg
nvg SIST EN 1996-1-2:2005/AC:2011

number material properties: unit strength fb [N/mm²] gross dry density ρ [kg/m³] combined thickness ct
% of wall thickness wall thickness [mm] Minimum wall length (mm) lF for fire resistance classification R for time (minutes) tfi,d 30 45 60 90 120 180 240 5 Group 4
units 5.1 mortar: general purpose and lightweight 5 ≤ fb ≤ 35 500 ≤ ρ ≤ 1 200 5.1.1 5.1.2 α ≤ 1,0 240 nvg nvg nvg
nvg nvg
nvg nvg
nvg nvg
nvg nvg
nvg nvg
nvg 5.1.3 5.1.4 300 nvg nvg nvg
nvg nvg
nvg nvg
nvg nvg
nvg nvg
nvg nvg
nvg 5.1.5 5.1.6 365 nvg nvg nvg
nvg nvg
nvg nvg
nvg nvg
nvg nvg
nvg nvg
nvg 5.1.7 5.1.8 α ≤ 0,6 240 nvg nvg nvg
nvg nvg
nvg nvg
nvg nvg
nvg nvg
nvg nvg
nvg 5.1.9 5.1.10 300 nvg nvg nvg
nvg nvg
nvg nvg
nvg nvg
nvg nvg
nvg nvg
nvg 5.1.11 5.1.12 365 nvg nvg nvg
nvg nvg
nvg nvg
nvg nvg
nvg nvg
nvg nvg
nvg
Table N.B.1.5 Clay masonry minimum thickness of separating loadbearing and non-loadbearing single and double leaf fire walls
(Criteria REI-M and EI-M) for fire resistance classifications row number material properties: unit strength fb [N/mm²] gross dry density ρ [kg/m³] combined thickness ct
% of wall thickness Minimum wall thickness (mm) tF for fire resistance classification REI-M and EI-M for time (minutes) tfi,d 30 45 60 90 120 180 240 1S Group 1S units
1S.1 5 ≤ fb ≤ 75 general purpose mortar 5 ≤ fb ≤ 50 thin layer mortar 1 000 ≤ ρ ≤ 2 400 1S.1.1 1S.1.2 α ≤ 1,0 240 (170) 240 (170) 240 (170) 240 (170) 365 (365) 365 (365) nvg nvg 1S.1.3 1S.1.4 α ≤ 0,6 240 (170) 240 (170) 240 (170) 240 (170) 365 (365) 365 (365) nvg nvg 1 Group 1 units 1.1 5 ≤ fb ≤ 75
800 ≤ ρ ≤ 2 400 1.1.1 1.1.2 α ≤ 1,0 240 (170) 240 (170) 240 (170) 240 (170) 365 (365) 365 (365) nvg nvg 1.1.3 1.1.4 α ≤ 0,6 240 (170) 240 (170) 240 (170) 240 (170) 365 (365) 365 (365) nvg nvg 1.2 5 ≤ fb ≤ 25 500 ≤ ρ ≤ 800 1.2.1 1.2.2 α ≤ 1,0 240 (170) 240 (170) 240 (170) 240/300 (170/240) 365 (365) 365 (365) nvg nvg 1.2.3 1.2.4 α ≤ 0,6 240 (170) 240 (170) 240 (170) 240/300 (170/240) 365 (365) 365 (365) nvg nvg SIST EN 1996-1-2:2005/AC:2011

% of wall thickness Minimum wall thickness (mm) tF for fire resistance classification REI-M and EI-M for time (minutes) tfi,d 30 45 60 90 120 180 240 2 Group
units 2.1 mortar: general purpose, thin layer
5 ≤ fb ≤ 35 800 ≤ ρ ≤ 2 200
ct ≥ 25%
2.1.1 2.1.2 α ≤ 1,0 240 (170) 240 (170) 240 (170) 240 (170) 365 (365) 365 (365) nvg nvg 2.1.3 2.1.4 α ≤ 0,6 240 (170) 240 (170) 240 (170) 240 (170) 365 (365) 365 (365) nvg nvg 2.2 mortar: general purpose, thin layer and lightweight 5 ≤ fb ≤ 25 700 ≤ ρ ≤ 800
ct ≥ 25%
2.2.1 2.2.2 α ≤ 1,0 240/365 (170/240) 240/365 (170/240) 240/365 (170/240) 240/365 (170/300) 365 (365) 365 (365) nvg nvg 2.2.3 2.2.4 α ≤ 0,6 240/365 (170/240) 240/365 (170/240) 240/365 (170/240) 240/365 (170/240) 365 (365) 365 (365) nvg nvg 2.3 mortar: general purpose, thin layer and lightweight 5 ≤ fb ≤ 25 500 ≤ ρ ≤ 900
16% ≤ ct ≤ 25% 2.3.1 2.3.2 α ≤ 1,0 365 (170) 365 (170) 365 (170) 365 (170/365) nvg (365) nvg (365) nvg nvg 2.3.3 2.3.4 α ≤ 0,6 365 (170) 365 (170) 365 (170) 365 (170/300) nvg (365) nvg (365) nvg nvg 3 Group 3 units
3.1 mortar: general purpose, lightweight, thin layer,
vertical perforation
5 ≤ fb ≤ 35 500 ≤ ρ ≤ 1 200
ct ≥ 12%
3.1.1 3.1.2 α ≤ 1,0 nvg (365) nvg (365) nvg (365) nvg (365) nvg nvg nvg nvg nvg nvg 3.1.3 3.1.4 α ≤ 0,6 nvg (365) nvg (365) nvg (365) nvg (365) nvg nvg nvg nvg nvg nvg 4 Walls in which holes in units are filled with mortar or concrete
4.1 mortar: general purpose, thin layer,
5 ≤ fb ≤ 35 500 ≤ ρ ≤ 1 200
ct ≥ 10% 4.1.1 4.1.2 α ≤ 1,0 240 (170) 240 (170) 240 (170) 240 (170) nvg nvg nvg
nvg nvg
nvg 4.1.3 4.1.4 α ≤ 0,6 240 (170) 240 (170) 240 (170) 240 (170) nvg
nvg nvg
nvg nvg
nvg
5 Group 4 units 5.1 mortar: general purpose, lightweight, thin layer,
5 ≤ fb ≤ 35 500 ≤ ρ ≤ 1 200
ct ≥ 12%
5.1.1 5.1.2 α ≤ 1,0 nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg SIST EN 1996-1-2:2005/AC:2011

% of wall thickness Minimum wall thickness (mm) tF for fire resistance classification REI-M and EI-M for time (minutes) tfi,d 30 45 60 90 120 180 240 5.1.3 5.1.4 α ≤ 0,6 nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg
Table N.B.1.6 Clay masonry minimum thickness of each leaf of separating loadbearing cavity walls with one leaf loaded
(Criteria REI) for fire resistance classifications row number material properties: unit strength fb [N/mm²] gross dry density ρ
[kg/m³] combined thickness ct
% of wall thickness Minimum wall thickness (mm) tF for fire resistance classification REI for time (minutes) tfi,d 30 45 60 90 120 180 240 1S Group 1S units
1S.1 5 ≤ fb ≤ 75 general purpose mortar 5 ≤ fb ≤ 50 thin layer mortar 1 000 ≤ ρ ≤ 2 400 1S.1.1 1S.1.2 α ≤ 1,0 90 (90) 90 (90) 90 (90) 100 (90) 100 (100) nvg nvg nvg nvg 1S.1.3 1S.1.4 α ≤ 0,6 90 (90) 90 (90) 90 (90) 100 (90) 100 (100) nvg nvg nvg nvg 1 Group 1 units
1.1 mortar: general purpose, thin layer 5 ≤ fb ≤ 75
800 ≤ ρ ≤ 2 400 1.1.1 1.1.2 α ≤ 1,0 90 (90) 90 (90) 90 (90) 100 (90/100) 100/170 (100) nvg nvg nvg nvg 1.1.3 1.1.4 α ≤ 0,6 90 (90) 90 (90) 90 (90) 100 (90) 100/140 (100) nvg nvg nvg nvg 1.2 mortar: general purpose, thin layer 5 ≤ fb ≤ 25 500 ≤ ρ ≤ 800
1.2.1 1.2.2 α ≤ 1,0 100 (100) 170 (140) 170 (140) 240 (200) 365 (300) nvg nvg nvg nvg 1.2.3 1.2.4 α ≤ 0,6 100 (100) 140 (140) 170 (140) 200 (170) 300 (300) nvg nvg nvg nvg 2 Group 2 units 2.1 mortar: general purpose, thin layer,
5 ≤ fb ≤ 35 800 < ρ ≤ 2 200
ct ≥ 25% 2.1.1 2.1.2 α ≤ 1,0 100 (100) 100 (100) 100 (100) 140/170 (100) 170/240 (100/140) nvg nvg nvg nvg 2.1.3 2.1.4 α ≤ 0,6 100 (100) 100 (100) 100 (100) 100/140 (100) 170 (100/140) nvg nvg nvg nvg 2.2 15 ≤ fb ≤ 25
700 ≤ ρ ≤ 800 ct ≥ 25% 2.2.1 2.2.2 α ≤ 1,0 100 (100) 100 (100) 100 (100) 170 (100) 240 (140) nvg nvg nvg nvg 2.2.3 2.2.4 α ≤ 0,6 100 (100) 100 (100) 100 (100) 140 (100) 170 (100) nvg nvg nvg nvg SIST EN 1996-1-2:2005/AC:2011

[kg/m³] combined thickness ct
% of wall thickness Minimum wall thickness (mm) tF for fire resistance classification REI for time (minutes) tfi,d 30 45 60 90 120 180 240 2.3 mortar: general purpose, thin layer and lightweight
5 ≤ fb ≤ 25 500 ≤ ρ ≤ 900
16% ≤ ct < 25%
2.3.1 2.3.2 α ≤ 1,0 nvg (100) nvg (100) nvg (100/170) nvg (100/240) nvg (140/300) nvg nvg nvg nvg 2.3.3 2.3.4 α ≤ 0,6 100 (100) 100 (100) 100 (100/140) 140 (100/170) 170 (100/300) nvg nvg nvg nvg 3 Group 3 units 3.1 mortar: general purpose, thin layer and lightweight 5 ≤ fb ≤ 35 500 ≤ ρ ≤ 1 200 ct ≥ 12% 3.1.1 3.1.2 α ≤ 1,0 nvg (100) nvg (170) nvg (240) nvg (300) nvg (365) nvg nvg nvg nvg 3.1.3 3.1.4 α ≤ 0,6 nvg (100 nvg (140) nvg (170) nvg (240) nvg (300) nvg nvg nvg nvg 4 Walls in which holes in units are filled with mortar or concrete 4.1 mortar: general purpose and thin layer 10 ≤ fb ≤ 35 500 ≤ ρ ≤ 1 200 ct ≥ 10% 4.1.1 4.1.2 α ≤ 1,0 100 (100) 100 (100) 100 (100) 170 (100) 240 (140) nvg nvg nvg nvg 4.1.3 4.1.4 α ≤ 0,6 100 (100) 100 (100) 100 (100) 140 (100) 170 (100) nvg nvg nvg nvg 5 Group 4 units 5.1 mortar: general purpose, thin layer and lightweight 5 ≤ fb ≤ 35 500 ≤ ρ ≤ 1 200 5.1.1 5.1.2 α ≤ 1,0 nvg (100) nvg (170) nvg (240) nvg (300) nvg (365) nvg nvg nvg nvg 5.1.3 5.1.4 α ≤ 0,6 nvg (100) nvg (140) nvg (170) nvg (240) nvg (300) nvg nvg nvg nvg N.B.2 Calcium silicate masonry Calcium silicate units conforming to EN 771-2 SIST EN 1996-1-2:2005/AC:2011

(Criteria EI) for fire resistance classifications row number material properties:
gross dry density ρ [kg/m³] Minimum wall thickness (mm) tF for fire resistance classification EI for time (minutes) tfi,d 30 45 60 90 120 180 240 1 Group 1S , 1, 2 and 3 units
1.1 mortar: general purpose, 600 ≤ ρ ≤ 2 400 1.1.1 1.1.2
70 (50) 70/90
(70) 70/90
(70) 100 (90) 100/140 (90/140) 140/170 (140) 140/200 (170)
1.2 mortar: thin layer 600 ≤ ρ ≤ 2 400 1.2.1 1.2.2
70 (50) 70/90
(70) 70/90
(70) 100 (100) 100/140 (100/140) 140/170 (140) 140/200 (170)
Table N.B.2.2 Calcium silicate masonry minimum thickness of separating loadbearing single-leaf walls
(Criteria REI) for fire resistance classifications row
number material properties: unit strength fb [N/mm²] gross dry density ρ [kg/m³] Minimum wall thickness (mm) tF for fire resistance classification REI for time (minutes) tfi,d
30 45 60 90 120 180 240 1S Group 1S units 1S.1 mortar: general purpose
12 ≤ fb ≤ 75 1 700 ≤ ρ ≤ 2 400 1S.1.1 1S.1.2 α ≤ 1,0 90 (90) 90 (90) 90 (90) 100 (90/100) 100/170 (100/140) 170 (170) 140/190 (140/190) 1S.1.3 1S.1.4 α ≤ 0,6 90 (90) 90 (90) 90 (90) 100 (90/100) 100/10 (100/140) 170 (170) 140/190 (140/190) 1S.2 mortar: thin layer 12 ≤ fb ≤ 15 1 700 ≤ ρ ≤ 2 400 1S.2.1 1S.2.2 α ≤ 1,0 90 (90) 90 (90) 90 (90) 100 (90/100) 100/170 (100/140) 170 (170) 140/190 (140/190) 1S.2.3 1S.2.4 α ≤ 0,6 90 (90) 90 (90) 90 (90) 100 (90/100) 100/170 (100/140) 170 (170) 140/190 (140/190) 1 Group 1 units
1.1 mortar: general purpose 12 ≤ fb ≤ 75 1 400 ≤ ρ ≤ 2 400 1.1.1 1.1.2 α ≤ 1,0 90 / 100 (90 / 100) 90 / 100 (90 / 100) 90 / 100 (90 / 100) 100 (90 /100) 140 / 200 (140) 190 / 240 (170 / 190) 190/240 (140) 1.1.3 1.1.4 α ≤ 0,6 90 / 100 (90 / 100) 90 / 100 (90 / 100) 90 / 100 (90 / 100) 100 (100) 120/40 (100) 170 / 200 (140) 190/200 (140) 1.2 mortar: thin layer 12 ≤ fb ≤ 75 1 400 ≤ ρ ≤ 2 400 1.2.1 1.2.2 α ≤ 1,0 90 / 100 (90 / 100) 90 / 100 (90 / 100) 90 / 100 (90 / 100) 100 (90 /100) 140 / 200 (140) 190 / 240 (170 / 190) 190/240 (140) 1.2.3 1.2.4 α ≤ 0,6 90 / 100 (90 / 100) 90 / 100 (90 / 100) 90 / 100 (90 / 100) 100 (100) 120/40 (100) 170 / 200 (140) 190/200 (140) 2 Group 2 units
number material properties: unit strength fb [N/mm²] gross dry density ρ [kg/m³] Minimum wall thickness (mm) tF for fire resistance classification REI for time (minutes) tfi,d
30 45 60 90 120 180 240 2.1 mortar: general purpose 6 ≤ fb ≤ 35 700 ≤ ρ ≤ 1 600 2.1.1 2.1.2 α ≤ 1,0 100 (100) 100 (100) 100 (100) 100/140 (100) 200 (170) 240 (190) nvg nvg 2.1.3 2.1.4 α ≤ 0,6 100 (100) 100 (100) 100 (100) 100 (100) 140 (100) 200 (140) nvg nvg 2.2 mortar: thin layer 6 ≤ fb ≤ 35 700 ≤ ρ ≤ 1 600 2.2.1 2.2.2 α ≤ 1,0 100 (100) 100 (100) 100 (100) 100/140 (100) 200 (170) 240 (190) nvg nvg 2.2.3 2.2.4 α ≤ 0,6 100 (100) 100 (100) 100 (100) 100 (100) 140 (100) 200 (140) nvg nvg
Table N.B.2.3 Calcium silicate masonry minimum thickness of non-separating loadbearing single-leaf walls ≥1,0m in length (Criterion R) for fire resistance classifications row number material properties: unit strength fb [N/mm²] gross dry density ρ [kg/m³] Minimum wall thickness or length (mm) tF for fire resistance classification R for time (minutes) tfi,d 30 45 60 90 120 180 240 1S Group 1S units
1S.1 mortar: general purpose 15 ≤ fb ≤ 75 1 700 ≤ ρ ≤ 2 400 1S.1.1 1S.1.2 α ≤ 1,0 100 (100) 100 (100) 100 (100) 100/140 (100) 200 (170) 240 (190) nvg nvg 1S.1.3 1S.1.4 α ≤ 0,6 100 (100) 100 (100) 100 (100) 100/140 (100) 170 (170) 200 (170) nvg nvg 1S.2 mortar: thin layer 15 ≤ fb ≤ 75 1 700 ≤ ρ ≤ 2 400 1S.2.1 1S.2.2 α ≤ 1,0 100 (100) 100 (100) 100 (100) 100/140 (100) 200 (170) 240 (190) nvg nvg 1S.2.3 1S.2.4 α ≤ 0,6 100 (100) 100 (100) 100 (100) 100/140 (100) 170 (170) 200 (170) nvg nvg 1 Group 1 units
1.1 mortar: general purpose 12 ≤ fb ≤ 75 1 400 ≤ ρ ≤ 2 400 1.1.1 1.1.2 α ≤ 1,0 100 (100) 100 (100) 100 (100) 140 (100) 200 (170) 240 (190) nvg nvg 1.1.3 1.1.4 α ≤ 0,6 100 (100) 100 (100) 100 (100) 100/140 (100) 170 (100) 200 (170) nvg nvg 1.2 mortar: thin layer 12 ≤ fb ≤ 75 1 400 ≤ ρ ≤ 2 400 1.2.1 1.2.2 α ≤ 1,0 100 (100) 100 (100) 100 (100) 100/140 (100) 200 (170) 240 (190) nvg nvg 1.2.3 1.2.4 α ≤ 0,6 100 (100) 100 (100) 100 (100) 100/140 (100) 170 (100) 200 (170) nvg nvg 2 Group 2 units
(Criterion R) for fire resistance classifications row number material properties: unit strength fb [N/mm²] gross dry density ρ [kg/m³] wall thick-ness [ mm ] Minimum wall length (mm) lF for fire resistance classification R for time (minutes) tfi,d 30 45 60 90 120 180 240 1 Group 1 and Group 2 units 1.1 mortar: general purpose, thin layer 15 ≤ fb ≤ 75 1 700 ≤ ρ ≤ 2 400 1.1.1 1.1.2 α ≤ 1,0 100 490 (365) 630 (490) 630 (490) 990 (730) 1 000 (990) 1 000 nvg 1 000 nvg 1.1.3 1.1.4 140 365 (300) 490 (365) 490 (365) 730 (630) 990 (730) 1 000 nvg 1 000 nvg 1.1.5 1.1.6 150 365 (300) 490 (365) 490 (365) 730 (630) 990 (730) 1 000 nvg 1 000 nvg 1.1.7 1.1.8 170 240 (240) 240 (240) 240 (240) 300 (240) 300 (240) 490 (300) nvg nvg 1.1.9 1.1.10 200 240 (240) 240 (240) 240 (240) 300 (240) 300 (240) 490 (300) nvg nvg 1.1.11 1.1.12 240 170 (nvg) 170 (nvg) 170 (nvg) 240 (170) 240 (170) 365 nvg nvg nvg 1.1.13 1.1.14 300 170 170 170 170 170 300 (200) nvg nvg 1.1.15 1.1.16 365 nvg (100) 170 (nvg) 170 (nvg) 170 (nvg) 170 (nvg) 240 (nvg) nvg nvg 1.1.17 1.1.18 α ≤ 0,6 100 365 (300) 490 (365) 490 (365) 730 (615) 1 000 (990) 1 000 nvg nvg nvg 1.1.19 1.1.20 140 300 (240) 300 (300) 300 (300) 615 (490) 730 (615) 990 (730) nvg nvg 1.1.21 1.1.22 150 300 (240) 300 (300) 300 (300) 615 (490) 730 (615) 990 (730) nvg nvg 1.1.23 1.1.24 170 240 (240) 240 (240) 240 (240) 240 (240) 240 (240) 365 (365) nvg nvg 1.1.25 1.1.26 200 240 (240) 240 (240) 240 (240) 240 (240) 240 (240) 365 (365) nvg nvg 1.1.27 1.1.28 240 170 nvg 170 nvg 170 nvg 170 nvg 170 nvg 300 nvg nvg nvg 1.1.29 1.1.30 300 170 nvg 170 nvg 170 nvg 170 nvg 170 nvg 240 nvg nvg nvg 1.1.31 1.1.32 365 170 nvg 170 nvg 170 nvg 170 nvg 170 nvg 170 nvg nvg nvg
sigle and double leaf
fire walls (Criteria REI-M and EI-M) for fire resistance classifications row number material properties: unit strength fb [N/mm²] gross dry density ρ [kg/m³] Minimum wall thickness (mm) tF for fire resistance classification REI-M and EI-M for time (minutes) tfi,d 30 45 60 90 120 180 240 1S Group 1S units 1S.1 mortar: general purpose 12,5 ≤ fb ≤ 35 1 700 ≤ ρ ≤ 2 400 1S.1.1 1S.1.2 α ≤ 1,0 170/240 nvg 170/240 nvg 170/240 nvg 170/240 nvg 240/300 nvg 240/300 nvg nvg nvg 1S.1.3 1S.1.4 α ≤ 0,6 nvg nvg nvg nvg nvg nvg nvg (170) nvg nvg nvg nvg nvg nvg 1S.2 mortar: thin layer 12,5 ≤ fb ≤ 35 1 700 ≤ ρ ≤ 2 400 1S.2.1 1S.2.2 α ≤ 1,0 170/240 nvg 170/240 nvg 170/240 nvg 170/240 nvg 240/300 nvg 240/300 nvg nvg nvg 1S.2.3 1S.2.4 α ≤ 0,6 nvg nvg nvg nvg nvg nvg nvg (170) nvg nvg nvg nvg nvg nvg 1 Group 1 units
1.1 mortar: general purpose 12,5 ≤ fb ≤ 35 1 400 ≤ ρ ≤ 2 400 1.1.1 1.1.2 α ≤ 1,0 240 nvg 240 nvg 240 nvg 240 nvg 300 nvg 300/365 nvg nvg nvg 1.1.3 1.1.4 α ≤ 0,6 nvg nvg nvg nvg nvg nvg 170 nvg nvg nvg 240 nvg nvg nvg 1.2 mortar: thin layer 12,5 ≤ fb ≤ 35 1 400 ≤ ρ ≤ 2 400 1.2.1 1.2.2 α ≤ 1,0 240 nvg 240 nvg 240 nvg 240 nvg 300 nvg 300/365 nvg nvg nvg 1.2.3 1.2.4 α ≤ 0,6 nvg nvg nvg nvg nvg nvg 170 nvg nvg nvg 240 nvg nvg nvg 2 Group 2 units 2.1 mortar: general purpose 6 ≤ fb ≤ 35 700 ≤ ρ ≤ 1 600 2.1.1 2.1.2 α ≤ 1,0 300 nvg 300 nvg 300 nvg 300 nvg 300/365 nvg 365/490 nvg nvg nvg 2.1.3 2.1.4 α ≤ 0,6 nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg 2.2 mortar: thin layer 6 ≤ fb ≤ 35 700 ≤ ρ ≤ 1 600 2.2.1 2.2.2 α ≤ 1,0 300 nvg 300 nvg 300 nvg 300 nvg 300/365 nvg 365/490 nvg nvg nvg 2.2.3 2.2.4 α ≤ 0,6 nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg
general purpose 8 ≤ fb ≤ 48 1 400 ≤ ρ ≤ 2 400 1.1.1 1.1.2 α ≤ 1,0 90/100 (90/100) 90/100 (90/100) 90/100 (90/100) 100 (90/100) 140/200 (140) 190/240 (170/190) 190/240 nvg 1.1.3 1.1.4 α ≤ 0,6 90/100 (90/100) 90/100 (90/100) 90/100 (90/100) 100 (100) 140 (100) 170/200 (140) 190/200 nvg 1.2 mortar:
thin layer 8 ≤ fb ≤ 48 1 400 ≤ ρ ≤ 2 400 1.2.1 1.2.2 α ≤ 1,0 90/100 (90/100) 90/100 (90/100) 90/100 (90/100) 100 (90/100) 140/200 (140) 190/240 (170/190) 190/240 nvg 1.2.3 1.2.4 α ≤ 0,6 90/100 (90/100) 90/100 (90/100) 90/100 (90/100) 100 (100) 120/140 (100) 170/200 (140) 190/200 nvg 2 Group 2 units 2.1 mortar:
general purpose 6 ≤ fb ≤ 35 700 ≤ ρ ≤ 1 000 2.1.1 2.1.2 α ≤ 1,0 100 (100) 100 (100) 100 (100) 100 (100) 200 (170) 240 (190) nvg nvg 2.1.3 2.1.4 α ≤ 0,6 100 (100) 100 (100) 100 (100) 100 (100) 140 (100) 200 (140) nvg nvg 2.2 mortar:
thin layer 6 ≤ fb ≤ 35 700 ≤ ρ ≤ 1 000 2.2.1 2.2.2 α ≤ 1,0 100 (100) 100 (100) 100 (100) 100 (100) 200 (170) 240 (190) nvg nvg 2.2.3 2.2.4 α ≤ 0,6 100 (100) 100 (100) 100 (100) 100 (100) 140 (100) 200 (140) nvg nvg
Table N.B.3.1 Dense and lightweight aggregate concrete masonry minimum thickness of separating non-loadbearing separating walls (Criteria EI) for fire resistance classifications row number material properties: unit strength fb [N/mm²] gross dry density ρ [kg/m³] Minimum wall thickness (mm) tF for fire resistance classification EI for time (minutes) tfi,d 30 45 60 90 120 180 240 1 Group 1 units mortar:
general purpose, thin layer, lightweight 1.1
lightweight aggregate 2 ≤ fb ≤ 15 400 ≤ ρ ≤ 1 600 1.1.1 1.1.2
50 (50) 70 (50) 70 / 90 (50/70) 70/ 140 (60/70) 70 / 140 (70 / 140) 90 / 140 (70 / 140) 100 / 190 (70 / 170) 1.2 dense aggregate 6 ≤ fb ≤ 35 1 200 ≤ ρ ≤ 2 400 1.2.1 1.2.2
50 (50) 70 (50) 70 / 90 (50 /70) 90/140 (70) 90 / 140 (70/ 90) 100/190 (90 / 100) 100 / 190 (100 / 170) 2 Group 2 units mortar:
general purpose, thin layer, lightweight 2.1
lightweight aggregate 2 ≤ fb ≤ 15 240 ≤ ρ ≤ 1 200 2.1.1 2.1.2
50 (50) 70 (50) 70 / 100 (50/90) 70 / 90 (70) 100 / 140 (70/140) 100 / 200 (90 / 100) 140/200 (100 / 200) 2.2
dense aggregate 6 ≤ fb ≤ 35 720 ≤ ρ ≤ 1 650 2.2.1 2.2.2
50 (50) 70 (50) 70 / 100 (50 / 70) 70 / 90 (70) 90 / 200 (90/140) 100 / 200 (90 / 140) 125 / 200 (100/ 200) 3 Group 3 units mortar:
general purpose, thin layer, lightweight 3.1
lightweight aggregate 2 ≤ fb ≤ 10 160 ≤ ρ ≤ 1 000 3.1.1 3.1.2
nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg 3.2
dense aggregate 6 ≤ fb ≤ 20 480 ≤ ρ ≤ 1 000 3.2.1 3.2.2
100 nvg nvg nvg 150 nvg 200 nvg nvg nvg nvg nvg nvg nvg 4
Walls in which holes in units are filled with mortar or concrete mortar:
general purpose and thin layer
4.1
lightweight aggregate 2 ≤ fb ≤ 10 160 ≤ ρ ≤ 1 000 4.1.1 4.1.2
nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg 4.2
dense aggregate 6 ≤ fb ≤ 20 480 ≤ ρ ≤ 1 000 4.2.1 4.2.2
nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg
Group 1 units mortar:
general purpose, thin layer, lightweight 1.1 lightweight aggregate 2 ≤ fb
≤ 15 400 ≤ ρ ≤ 1 600 1.1.1 1.1.2 α ≤ 1,0 90 / 170 (90 / 140) 90 / 170 (90 / 140) 90 / 170 ( 90 / 140) 100 / 170 (90 / 140) 100 / 190 (90 / 170) 140 / 240 (100 / 190) 150 / 300 (100 / 240) 1.1.3 1.1.4 α ≤ 0,6 70 / 140 (60 / 100) 70 / 140 (60 / 100) 70 / 140 (60 / 100) 90 / 170 (70 / 100) 90 / 170 (70 / 140) 100 / 190 (90 / 170) 100 / 240 (90 / 190) 1.2 dense aggregate 6 ≤ fb ≤ 35 1 200 ≤ ρ ≤ 2 400 1.2.1 1.2.2 α ≤ 1,0 90 / 170 (90/140) 90 / 170 (100/140) 90 / 170 (90/140) 90 / 170 (90/140) 100 / 190 (90/170) 140 / 240 (100/190) 150 / 300 (100/240) 1.2.3 1.2.4 α ≤ 0,6 70 / 140 (60 / 100) 90 / 140 (70/ 100) 70 / 140 (70 / 100) 90 / 170 (70 / 100) 90 / 170 (70 / 140) 100 / 190 (90 / 170) 140 / 240 (100 / 190) 2 Group 2 units mortar:
general purpose, thin layer, lightweight 2.1 lightweight aggregate 2 ≤ fb ≤ 15 240 ≤ ρ ≤ 1 200 2.1.1 2.1.2 α ≤ 1,0 90 / 170 (90 / 140) 100 / 170 (90 / 140) 100 / 170 (90 / 140) 100 / 170 (90/140) 100 / 190 (100/170) 140 / 240 (140/190) 150 /300 (140/240) 2.1.3 2.1.4 α ≤ 0,6 70/140 (70/100) 70/140 (70/100) 90/140 (70/100) 90/170 (70/100) 100/ 170 (90/140) 125/190 (100/170) 140/240 (125/190) 2.2 dense aggregate 6 ≤ fb ≤ 35 720
≤ ρ ≤ 1 650 2.2.1 2.2.2 α ≤ 1,0 90 / 170 (90 / 140) 100 / 170 (90 / 140) 100 / 170 (90 / 140) 100 / 170 (100/140) 100 / 190 (100/170) 140 / 240 (140/190) 150 /300 (150/240) 2.2.3 2.2.4 α ≤ 0,6 90/140 (70/100) 90/140 (90/100) 100/140 (90/100) 100/170 (90/100) 100/170 (100/140) 140/190 (125/170) 150/240 (140/190) 3 Group 3 units mortar:
general purpose, thin layer, lightweight 3.1
lightweight aggregate 2 ≤ fb ≤ 10 160 ≤ ρ ≤ 1 000 3.1.1 3.1.2 α ≤ 1,0 nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg 3.1.3 3.1.4 α ≤ 0,6 nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg 3.2
dense aggregate 6 ≤ fb ≤ 20 480 ≤ ρ ≤ 1 000 3.2.1 3.2.2 α ≤ 1,0 nvg nvg nvg nvg nvg nvg 140 nvg 140/200 nvg 200 nvg nvg nvg 3.2.3 3.2.4 α ≤ 0,6 nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg nvg SIST EN 1996-1-2:2005/AC:2011

Walls in which holes in units are filled with mortar or concrete mortar:
general purpose an
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What is SIST EN 1996-1-2:2005/AC:2011?

SIST EN 1996-1-2:2005/AC:2011 is a corrigendum published by the Slovenian Institute for Standardization (SIST). Its full title is "Eurocode 6 - Design of masonry structures - Part 1-2: General rules - Structural fire design". This standard covers: (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.

What is the scope of SIST EN 1996-1-2:2005/AC:2011?

(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.

What ICS categories does SIST EN 1996-1-2:2005/AC:2011 belong to?

SIST EN 1996-1-2:2005/AC:2011 is classified under the following ICS (International Classification for Standards) categories: 13.220.50 - Fire-resistance of building materials and elements; 91.010.30 - Technical aspects; 91.080.30 - Masonry. The ICS classification helps identify the subject area and facilitates finding related standards.

What standards are related to SIST EN 1996-1-2:2005/AC:2011?

SIST EN 1996-1-2:2005/AC:2011 has the following relationships with other standards: It is inter standard links to kSIST FprEN 1996-1-2:2024, SIST EN 1996-1-2:2005. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

Is SIST EN 1996-1-2:2005/AC:2011 a harmonized European standard?

SIST EN 1996-1-2:2005/AC:2011 is associated with the following European legislation: EU Directives/Regulations: 2005-01-4408, 305/2011, 89/106/EEC; Standardization Mandates: M/265, M/BC/CEN/89/11. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

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기사 제목: SIST EN 1996-1-2:2005/AC:2011 - 유로코드 6 - 석조구조물 설계 - 1-2부: 일반 규칙 - 구조적 화재 설계 기사 내용: 이 EN 1996의 1-2부는 우발적인 화재 노출 상황에서 석조구조물의 설계에 대해 다루며 EN 1996-1-1, EN 1996-2, 1996-3 및 EN 1991-1-2와 함께 사용하기 위해 의도되었다. 1-2부는 일반 온도 설계와의 차이점이나 보완사항만 식별한다. 이 1-2부에서는 수동적인 방화 방법에 대해서만 다룬다. 능동적인 방법은 다루지 않는다. 이 1-2부는 화재에 노출될 때 일정한 기능을 충족하기 위해 일반적인 화재 안전 이유로 일부 석조구조물에 적용된다. 이 기능은 구조의 조기 붕괴를 방지하고 지정된 영역을 넘어서는 화재의 확산을 제한하는 것이다. 이 1-2부는 상기 기능과 성능 수준에 대한 특정 요구 사항에 대한 설계 원칙과 적용 규칙을 제공한다. 이 1-2부는 EN 1996-1-1, EN 1996-2 및 EN 1996-3의 적용 범위 내에 있는 구조물 또는 구조물의 일부에 적용된다. 이 1-2부는 EN771-6에 따라 자연석 재료로 만들어진 석조를 다루지 않는다. 이 1-2부는 다음에 대해 다룬다: 비하중 내벽, 비하중 외벽, 분리 또는 비분리 기능을 갖는 하중 용 수중 내벽, 분리 또는 비분리 기능을 갖는 하중 용 외벽.

記事タイトル：SIST EN 1996-1-2：2005 / AC：2011 - ユーロコード6 - 石積み構造の設計 - 第1-2部：一般ルール - 構造防火設計記事内容：このEN 1996の第1-2部は、火災による偶発的な状況での石積み構造の設計について取り扱い、EN 1996-1-1、EN 1996-2、1996-3、およびEN 1991-1-2と共に使用することを意図しています。この第1-2部は、通常の温度設計との相違点や補完事項のみを明示します。この第1-2部は、受動的な防火方法にのみ対応しています。能動的な方法はカバーされていません。この第1-2部は、火災時に特定の機能を果たす必要がある石積み構造に適用されます。これは、構造の早期崩壊を防止し、指定された領域を超えた火災の拡散を制限することです。この第1-2部は、上記の機能と性能レベルの特定要件に対して、設計の原則と適用規則を提供します。この第1-2部は、EN 1996-1-1、EN 1996-2、およびEN 1996-3の適用範囲内にある構造または構造の一部に適用されます。この第1-2部は、EN771-6に基づく天然石ユニットで構築された石積みには適用されません。この第1-2部は、次の内容について取り扱います：非損傷の内部壁、非損傷の外部壁、分離または非分離機能を持つ耐荷重内部壁、分離または非分離機能を持つ耐荷重外部壁。

This article, titled "SIST EN 1996-1-2:2005/AC:2011 - Eurocode 6 - Design of masonry structures - Part 1-2: General rules - Structural fire design," discusses the design of masonry structures for fire exposure. It is a supplementary guide to be used alongside other codes related to masonry structure design. The article focuses on passive methods of fire protection and applies to masonry structures that need to fulfill certain functions during a fire, such as preventing collapse and limiting the spread of fire. It provides principles and application rules for designing structures that meet these requirements. The article specifically covers non-loadbearing internal and external walls, as well as loadbearing internal and external walls with separating or non-separating functions. It does not include masonry built with Natural Stone units.