Glass in building - Determination of the lateral load resistance of glass panes by calculation

This document gives a method of determining the design value of the bending strength of glass. It gives:the general method of calculation, and guidance for lateral load resistance of linearly supported glazed elements used as infill panels
NOTE   Examples of lateral loads are wind loads, snow loads, self weight of sloping glass, and cavity pressure variations on insulating glass units.
This document gives recommended values for the following factors for glass as a material:
- material partial factors, M;A and M;v ;
- factors for the load duration, kmod ;
- factor for stressed edges, ke.
Most glass in buildings is used as infill panels.  This document covers those infill panels that are in a class of consequence lower than those covered in EN 1990, so proposed values for the partial load factors, yQ and yG, are given for these infill panels.
The action of cavity pressure variations on insulating glass units is not covered by Eurocodes, so this document also gives proposed values of partial factors, 0, 1 and 2, for this action.
This document does not determine suitability for purpose. Resistance to lateral loads is only one part of the design process, which could also need to take into account:
-   in-plane loading, buckling, lateral torsional buckling, and shear forces,
-   environmental factors (e.g. sound insulation, thermal properties),
-   safety characteristics (e.g. fire performance, mode of breakage in relation to human safety, security).
This document does not apply to channel shaped glass, glass blocks and pavers, or vacuum insulated glass units.

Glas im Bauwesen - Bestimmung des Belastungswiderstandes von Glasscheiben durch Berechnung

Dieses Dokument legt ein Verfahren zur Bestimmung der Bemessungswerte für die Biegefestigkeit von Glas fest. Es legt das allgemeine Berechnungsverfahren und eine Leitlinie für den Querbelastungswiderstand von linear gestützten verglasten Elementen fest, die als Ausfachungen verwendet werden.
ANMERKUNG   Beispiele für Querbelastungen sind Wind  und Schneelasten, das Eigengewicht schräg installierter Glaselemente sowie Druckschwankungen des Scheibenzwischenraums von Mehrscheiben-Isolierglas.
Dieses Dokument enthält empfohlene Werte für die folgenden Faktoren für den Werkstoff Glas:
-   Teilsicherheitsbeiwerte γM;A und γM;v;
-   Beiwerte für die Lasteinwirkungsdauer kmod;
-   Kantenbelastungsbeiwert ke.
In Gebäuden wird Glas hauptsächlich als Ausfachung verwendet. Dieses Dokument deckt solche Ausfachungen ab, die in eine niedrigere Schadensfolgeklasse eingeordnet werden als die von der EN 1990 abgedeckten Ausfachungen, sodass Vorschläge für die Werte für die Teilsicherheitsbeiwerte γQ und γG für diese Ausfachungen angegeben werden.
Die Einwirkung von Druckschwankungen des Scheibenzwischenraums auf Mehrscheiben-Isolierglas wird von den Eurocodes nicht abgedeckt, sodass dieses Dokument ebenfalls Vorschläge für Werte für die Teilsicherheitsbeiwerte ψ0, ψ1 und ψ2 für diese Einwirkung enthält.
Dieses Dokument legt nicht die Gebrauchstauglichkeit fest. Der Querbelastungswiderstand ist nur ein Teil des Konstruktionsprozesses, bei dem auch Folgendes berücksichtigt werden könnte:
-   Belastungen in der Ebene, Beulen, seitliches Torsionsknicken und Schubspannungskräfte;
-   umgebungsbezogene Faktoren (z. B. Schalldämmung, thermische Eigenschaften);
-   Sicherheitsmerkmale (z. B. Brandverhalten, Bruchverhalten in Bezug auf den Schutz von Personen, Sicherheit).
Dieses Dokument gilt nicht für U Glas, Glassteine und Betongläser oder Vakuum-Mehrscheiben-Isolierglas.

Verre dans la construction - Détermination par calcul de la résistance des vitrages aux charges perpendiculaires à leur plan.

Ce document donne une méthode de détermination du calcul de la résistance du verre soumis à la flexion. Elle donne la méthode générale de calcul, et un document d’orientation pour la résistance aux charges perpendiculaires des éléments vitrés supportés linéairement.
NOTE Les charges dues au vent et les charges dues à la neige, ainsi que le poids propre du verre incliné et la pression interne aux lames de gaz de vitrage isolant sont des exemples de charges perpendiculaires.
Ce document donne des valeurs recommandées pour les coefficients suivants pour le produit verrier :
- les coefficients partiels des matériaux, γM;A et γM;v ;
- les coefficients désignant une durée d’application des charges kmod ;
- les coefficients partiels pour les actions, γG, γQ, et ψ ;
- le coefficient pour les bords soumis à contraintes, ke.
La plupart des vitrages pour bâtiments sont utilisés en tant qu’éléments de remplissage. Ce document couvre les éléments de remplissage qui ont une classe de conséquence inférieure à celles couvertes par la EN 1990, par conséquent, les valeurs proposées pour les coefficients partiels de charge, γQ et γG sont donnés pour ces éléments de remplissage.
L’action des variations de charges internes dans les lames de gaz d’un vitrage isolant n’est pas couverte par les Eurocodes, par conséquent, ce document propose des valeurs de coefficients de combinaison de charges, ψ0, ψ1 et ψ2, pour cette action.
Ce document ne préjuge pas de l’aptitude à l’emploi. La résistance aux charges perpendiculaires.n’est qu’une partie du processus de conception, qui peut également devoir prendre en compte :
- le chargement dans le plan, le flambage, le déversement et les forces de cisaillement ;
- les facteurs environnementaux (par exemple l’isolation acoustique, les propriétés thermiques) ;
- les caractéristiques de sécurité (par exemple le comportement au feu, les caractéristiques de rupture vis-à-vis de la sécurité des personnes, la sécurité).
Ce document ne s’applique pas au verre profilé en U, ni aux pavés de verre, ni aux vitrages isolants à lame de vide.

Steklo v gradbeništvu - Določevanje bočne nosilnosti steklenih plošč z izračunom

Ta evropski standard podaja metodo za določevanje konstrukcijske vrednosti upogibne trdnosti stekla. Podaja:
– splošno metodo izračuna in
– smernice za bočno nosilnost linearno podprtih zastekljenih elementov, ki se uporabljajo kot polnilne plošče.
OPOMBA: Primeri bočnih obremenitev so obremenitev stekla z vetrom in snegom ter lastna teža poševnega stekla in podnebne obremenitve na izolacijskih steklenih enotah.
Standard priporoča vrednosti za naslednje faktorje stekla kot materiala:
– delne faktorje materiala (γM;A in γM;v);
– faktorje za trajanje obremenitve (kmod);
– delne faktorje vplivov (γG , γQ , in ψ);
– faktor za obremenitev robov (ke).
Steklo se v stavbah uporablja večinoma kot polnilne plošče.  Polnilne plošče so v nižjem razredu posledic, kot je določen v standardu EN 1990, zato sta za polnilne plošče podana delna faktorja obremenitve γQ in γG. Vpliv podnebnih obremenitev na izolacijske steklene enote ni zajeto z evrokodom, tako da ta dokument podaja tudi vrednosti delnih faktorjev ψ0, ψ1 in ψ2 za te vplive. Ta evropski standard ne določa primernosti za namen. Odpornost na bočne obremenitve je le en del procesa načrtovanja, pri katerem je treba upoštevati še na primer:
– obremenitve v ravnini, uklon, bočni torzijski uklon in strižne sile,
– okoljske dejavnike (npr. zvočna izolacija, toplotne lastnosti),
– varnostne značilnosti, ki jih ni mogoče izračunati (npr. požarne lastnosti, lastnosti loma v zvezi z varnostjo oseb, zaščita, zadrževanje).
Ta evropski standard se ne uporablja za steklo v obliki kanala.

General Information

Status
Published
Publication Date
15-Oct-2019
Withdrawal Date
29-Apr-2020
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
16-Oct-2019
Due Date
04-Apr-2020
Completion Date
16-Oct-2019

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SLOVENSKI STANDARD
01-februar-2020
Steklo v gradbeništvu - Določevanje bočne nosilnosti steklenih plošč z izračunom
Glass in building - Determination of the lateral load resistance of glass panes by
calculation
Glas im Bauwesen - Bestimmung des Belastungswiderstandes von Glasscheiben durch
Berechnung und Prüfung
Verre dans la construction - Détermination par calcul de la résistance des vitrages aux
charges latérales
Ta slovenski standard je istoveten z: EN 16612:2019
ICS:
81.040.20 Steklo v gradbeništvu Glass in building
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 16612
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2019
EUROPÄISCHE NORM
ICS 81.040.20
English Version
Glass in building - Determination of the lateral load
resistance of glass panes by calculation
Verre dans la construction - Determination de la Glas im Bauwesen - Bestimmung des
resistance des feuilles de verre par calcul et par essai Belastungswiderstandes von Glasscheiben durch
Berechnung und Prüfung
This European Standard was approved by CEN on 21 July 2019.

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. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 16612:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 7
4 Symbols and abbreviations . 8
5 Requirements . 13
5.1 Basis of determination of load resistance of glass . 13
5.2 Material partial factor . 14
5.3 Process of determining the load resistance of glass . 14
6 Mechanical and physical properties of glass . 14
6.1 Values . 14
6.2 Approximate values . 15
7 Actions . 15
7.1 Assumptions related to the actions and combinations of actions . 15
7.2 Combinations of actions . 15
8 Strength and stress . 16
8.1 Design value of bending strength for annealed glass. 16
8.2 Design value of bending strength for prestressed glass . 18
9 Calculation principles and conditions . 19
9.1 General method of calculation . 19
9.2 Calculation method for laminated glass and laminated safety glass . 22
9.3 Calculation method for insulating glass units . 22
Annex A (informative) Parameters . 23
Annex B (informative) Calculation formulae for stress and deflection for large deflections of
rectangular panes supported on all edges . 32
Annex C (informative) Calculation process for insulating glass units. 36
Annex D (informative) Simplified calculation method for laminated glass . 48
Bibliography . 52

European foreword
This document (EN 16612:2019) has been prepared by Technical Committee CEN/TC 129 “Glass in
Building”, the secretariat of which is held by NBN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by April 2020 and conflicting national standards shall be
withdrawn at the latest by April 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: 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 the
United Kingdom.
Introduction
This document gives a method of determining the lateral load resistance of linearly supported glass
elements.
The method of determining the load resistance of glass is in accordance with the principles of structural
Eurocode EN 1990: Basis of structural design. The actions are determined in accordance with the
structural Eurocode 1 series for actions on structures, e.g. EN 1991-1-1, EN 1991-1-3 and EN 1991-1-4,
including the National annexes. In the design processes, the reliability is part of national competency.
For that reason, this document foresees that, to conform with the rules applied by the Eurocodes, the
following parameters are subject to national determination:
— material partial factors, γ and γ ;
M;A M;v
— factors for the load duration, k ;
mod
— factor for stressed edges, k .
e
1 Scope
This document gives a method of determining the design value of the bending strength of glass. It gives
the general method of calculation, and guidance for lateral load resistance of linearly supported glazed
elements used as infill panels.
NOTE Examples of lateral loads are wind loads, snow loads, self weight of sloping glass, and cavity pressure
variations on insulating glass units.
This document gives recommended values for the following factors for glass as a material:
— material partial factors, γ and ;
M;A γM;v
— factors for the load duration, k ;
mod
— factor for stressed edges, k .
e
Most glass in buildings is used as infill panels. This document covers those infill panels that are in a
class of consequence lower than those covered in EN 1990, so proposed values for the partial load
factors, γ and γ , are given for these infill panels.
Q G
The action of cavity pressure variations on insulating glass units is not covered by Eurocodes, so this
document also gives proposed values of combination factors, ψ , ψ and ψ , for this action.
0 1 2
This document does not determine suitability for purpose. Resistance to lateral loads is only one part of
the design process, which could also need to take into account:
• in-plane loading, buckling, lateral torsional buckling, and shear forces,
• environmental factors (e.g. sound insulation, thermal properties),
• safety characteristics (e.g. fire performance, mode of breakage in relation to human safety,
security).
This document does not apply to channel shaped glass, glass blocks and pavers, or vacuum insulated
glass units.
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.
EN 410, Glass in building — Determination of luminous and solar characteristics of glazing
EN 572-1, Glass in building — Basic soda-lime silicate glass products — Part 1: Definitions and general
physical and mechanical properties
EN 673, Glass in building — Determination of thermal transmittance (U value) — Calculation method
EN 1279-5, Glass in building — Insulating glass units — Part 5: Product standard
EN 1288-2, Glass in building — Determination of bending strength of glass — Part 2: Coaxial double ring
test on flat specimens with large test surface areas
EN 1288-3, Glass in building — Determination of the bending strength of glass — Part 3: Test with
specimen supported at two points (four point bending)
EN 1748-1-1, Glass in building — Special basic products — Borosilicate glasses — Part 1-1: Definition and
general physical and mechanical properties
EN 1748-2-1, Glass in building — Special basic products —Glass ceramics — Part 2-1: Definitions and
general physical and mechanical properties
EN 1863-1, Glass in building — Heat strengthened soda lime silicate glass — Part 1: Definition and
description
, Eurocode — Basis of structural design
EN 1990:2002
EN 1991-1-1, Eurocode 1: Actions on structures — Part 1-1: General actions — Densities, self-weight,
imposed loads for buildings
EN 1991-1-3, Eurocode 1: Actions on structures — Part 1-3: General actions - Snow loads
EN 1991-1-4, Eurocode 1: Actions on structures — Part 1-4: General actions - Wind actions
EN 12150-1, Glass in building — Thermally toughened soda lime silicate safety glass — Part 1: Definition
and description
EN 12337-1, Glass in building — Chemically strengthened soda lime silicate glass — Part 1: Definition and
description
EN 13024-1, Glass in building — Thermally toughened borosilicate safety glass — Part 1: Definition and
description
EN 14178-1, Glass in building — Basic alkaline earth silicate glass products — Part 1: Float glass
EN 14179-1, Glass in building — Heat soaked thermally toughened soda lime silicate safety glass — Part
1: Definition and description
EN 14321-1, Glass in building — Thermally toughened alkaline earth silicate safety glass — Part 1:
Definition and description
EN 14449, Glass in building — Laminated glass and laminated safety glass — Evaluation of
conformity/Product Standard
EN 15681-1, Glass in building — Basic alumino silicate glass products — Part 1: Definitions and general
physical and mechanical properties
EN 15682-1, Glass in building — Heat soaked thermally toughened alkaline earth silicate safety glass —
Part 1: Definition and description
EN 16613, Glass in building — Laminated glass and laminated safety glass — Determination of interlayer
mechanical properties
1 This document is impacted by the amendment EN 1990:2002/A1:2005 and the corrigendum
EN 1990:2002/A1:2005/AC:2010.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
infill panel
panel that closes openings in buildings but does not contribute to the stability of the load bearing
members
3.2
annealed glass
glass which ha
...

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