EN 14024:2004

Metal profiles with thermal barrier - Mechanical performance - Requirements, proof and tests for assessment

This European Standard specifies requirements for assessment of the mechanical strength of metal profiles incorporating a thermal barrier. It also specifies the tests to determine the characteristic values of mechanical properties of the thermal barrier profile and to assess the suitability of the thermal barrier material used.
This European Standard applies to thermal barrier profiles designed mainly for windows, doors, window walls and curtain walls. It does not apply to thermal barriers made only of metal profiles connected with metal pins or screws.
Thermal barrier profiles are used in various fields of applications and demand a differing assessment of their mechanical performance depending on their intended use. This European Standard takes this into account by two fields of application: one for windows, doors and related components and one for profiles in façades.

Metallprofile mit thermischer Trennung - Mechanisches Leistungsverhalten - Anforderungen, Nachweis und Prüfungen für die Beurteilung

Profilés métalliques à rupture de pont thermique - Performances mécaniques - Exigences, preuve et essais pour évaluation

La présente norme européenne spécifie les exigences pour l'évaluation de la résistance mécanique des profilés métalliques à rupture de pont thermique. Elle spécifie également les essais destinés à déterminer les valeurs caractéristiques des propriétés mécaniques des profilés à rupture de pont thermique et à évaluer l'aptitude à l'emploi du matériau utilisé pour la coupure thermique.
La présente norme européenne s'applique aux profilés à rupture de pont thermique conçus principalement pour les fenêtres, les portes, les panneaux de verre et les murs rideaux. Elle ne s'applique pas aux coupures thermiques constituées uniquement de liaisons métalliques ponctuelles ou par des vis.
Les profilés à rupture de pont thermique sont utilisés dans un vaste champ d'applications et demandent une évaluation différente de leurs performances mécaniques en fonction de l'utilisation prévue. Cette norme européenne tient compte de cet élément par deux champs d'application : l'un pour les fenêtres, les portes et les éléments connexes et un autre pour les profilés de façade.

Kovinski profili s prekinjenim toplotnim mostom - Mehanske lastnosti - Zahteve, izračuni in preskušanja

General Information

• Status: Withdrawn
• Publication Date: 05-Oct-2004
• Withdrawal Date: 18-Jul-2023
• ICS: 91.060.10 - Walls. Partitions. Facades
• ICS: 91.060.50 - Doors and windows
• Technical Committee: CEN/TC 33 - Doors, windows, shutters and building hardware
• Drafting Committee: CEN/TC 33 - Doors, windows, shutters and building hardware
• Ref Project: SIST EN 14024:2005 - Metal profiles with thermal barrier - Mechanical performance - Requirements, proof and tests for assessment

Relations

• Replaced By: EN 14024:2023 - Metal profiles with thermal barrier - Mechanical performance - Requirements, proof and tests for assessment
• Effective Date: 08-Jul-2020

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Metallprofile mit thermischer Trennung - Mechanisches Leistungsverhalten - Anforderungen, Nachweis und Prüfungen für die BeurteilungProfilés métalliques a rupture de pont thermique - Performances mécaniques - Exigences, preuve et essais pour évaluationMetal profiles with thermal barrier - Mechanical performance - Requirements, proof and tests for assessment91.060.50Vrata in oknaDoors and windows91.060.10Stene. Predelne stene. FasadeWalls. Partitions. FacadesICS:Ta slovenski standard je istoveten z:EN 14024:2004SIST EN 14024:2005en01-januar-2005SIST EN 14024:2005SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14024October 2004ICS 91.060.10; 91.060.50 English versionMetal profiles with thermal barrier - Mechanical performance -Requirements, proof and tests for assessmentProfilés métalliques à rupture de pont thermique -Performances mécaniques - Exigences, preuve et essaispour évaluationMetallprofile mit thermischer Trennung - MechanischesLeistungsverhalten - Anforderungen, Nachweis undPrüfungen für die BeurteilungThis European Standard was approved by CEN on 29 July 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14024:2004: ESIST EN 14024:2005

Static proof.22 Annex B (informative)
Extrapolation of characteristic data.25 Annex C (informative)
Effective momentum of inertia of thermal barrier profiles.27 Bibliography.29
Figures Figure 1 — Schematic diagram of mechanical design systems.6 Figure 2 — Examples of geometric design types.7 Figure 3 — Transfer of the self-weight of the infill element to the vertical profile by mechanical means.9 Figure 4 — Side view and front view of a test device (schematic) for determining the transverse tensile strength.13 Figure 5 — Test device for determining shear strength and elasticity constant (schematic).14 Figure 6 — Test device (schematic) for ageing method 1.16 Figure 7 — Method 1: Measurement of the remaining deformation.16 Figure 8 — Test device (schematic) for ageing method 2.17 Figure 9 — Method 2: Load cycle.17 Figure 10 — Method 2: Temperature cycle (12 h).18 Figure 11 — Method 2: Measurement of the remaining deformation.18 Figure B.1 — Schematic representation of thermal barriers.26 SIST EN 14024:2005

3 Terms, definitions and symbols For the purposes of this document, the following terms, definitions and symbols apply. 3.1 thermal barrier profile profile composed of two or more metal sections connected by at least one thermally insulating (non-metallic) part NOTE 1 The thermal barrier contributes to load transmission. NOTE 2 The thermal barrier can be continuous or in parts. 3.2 Use categories 3.2.1 category W thermal barrier profiles mainly designed for windows, doors and secondary constituent parts of curtain walls NOTE Thermal barrier profiles designed for windows and doors do not usually require proof by calculation for mechanical resistance. 3.2.2 category CW thermal barrier profiles mainly designed for the constituent parts of curtain walls with spans greater than 2,25 m NOTE Constituent parts of curtain walls usually need proof by calculation relating to mechanical resistance and deflection. SIST EN 14024:2005

NOTE Temperature category TC 2 includes temperature category TC 1. 3.3 Mechanical design systems 3.3.1 type A system system which is designed to transfer shear and in which shear failure will not negatively affect the transverse tensile strength 3.3.2 type B system system which is designed to transfer shear and in which shear failure will negatively affect the transverse tensile strength 3.3.3 type O system system which is designed to transfer no shear to the thermal barrier or profile which has an insufficient shear strength
a) Type A system b) Type B system c) Type O system Key 1
Thermal barrier 2
Metal Figure 1 — Schematic diagram of mechanical design systems SIST EN 14024:2005

a) symmetrically loaded profile (type 1) b) and c) near symmetrically loaded profiles with eccentricity a/b ≤ 5 (type 1) d) and e) asymmetrically loaded profiles with eccentricity a/b > 5 (type 2) f) and g) non-symmetric profiles (type 2) Key 1
Thermal barrier profile 2
Infill elements (i.e. glass or panels) 3
Line load Figure 2 — Examples of geometric design types
A1 design factor for type B
A2 creep factor
Indexes
c characteristic value which has a 95% chance of being exceeded based on a logarithmic normal distribution with 75% confidence
N new, before artificial ageing
M1 after artificial ageing, method 1
M2 after artificial ageing, method 2
M3 after artificial ageing, method 3
mean mean value
req required
max maximum
LT low temperature
RT room temperature
HT high temperature
4 Requirements 4.1 General For assessing the shear depending on the thermal barrier systems, three types A, B and O (see 3.3) shall be distinguished. Because of the intrinsic safety of type A, shear and tensile strength may be considered independently, whereas type B requires an assessment under superposition of loads. The transverse tensile strength of type A and type O shall be determined after simulated shear failure. For type O only the transverse tensile strength shall be determined, no shear strength and elasticity constant will be given. Permanent loads which stress the thermal barrier are not covered by this document with the following exceptions: a) the tension (transversal tensile stress) caused by conventional glazing systems with preformed seals; SIST EN 14024:2005
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