FprEN 1991-1-5
(Main)Eurocode 1 - Actions on structures - Part 1-5: Thermal actions
Eurocode 1 - Actions on structures - Part 1-5: Thermal actions
1.1 Scope of EN 1991-1-5
(1) EN 1991-1-5 gives principles and rules for calculating thermal actions on buildings, bridges and other structures including their structural members. Principles needed for cladding and other attachments of buildings are also provided.
(2) This Part describes the changes in the temperature of structural members. Characteristic values of thermal actions are presented for use in the design of structures which are exposed to daily and seasonal climatic changes.
(3) This Part also gives principles for changes in the temperature of structural members due to the paving of hot asphalt on bridge decks.
(4) This Part also provides principles and rules for thermal actions acting in structures which are mainly a function of their use (e.g. cooling towers, silos, tanks, warm and cold storage facilities, hot and cold services, etc.).
NOTE Supplementary guidance for thermal actions on chimneys is provided in EN 13084-1.
1.2 Assumptions
The assumptions given in FprEN 1990:2022, 1.2 apply to EN 1991-1-5.
Eurocode 1 - Einwirkungen auf Tragwerke - Teil 1-5: Allgemeine Einwirkungen - Temperatureinwirkungen
1.1 Anwendungsbereich von EN 1991-1-5
(1) EN 1991-1-5 gibt Prinzipien und Festlegungen zur Berechnung von Temperatureinwirkungen auf Gebäude, Brücken und anderen Tragwerken einschließlich ihrer tragenden Bauteile an. Festlegungen für Außenwandbekleidungen und andere Anbauten von Gebäuden sind ebenfalls angegeben.
(2) Dieser Teil beschreibt die Temperatureinwirkungen auf tragende Bauteile. Es werden die charakteristischen Werte für Temperatureinwirkungen angegeben, die für die Bemessung von Tragwerken benutzt werden können, die durch tägliche und jahreszeitliche Temperaturwechsel beansprucht werden.
(3) Dieser Teil enthält auch Grundsätze für Temperaturänderungen von tragenden Bauteilen infolge des Einsatzes von Heißasphalt auf Brückenüberbauten.
(4) Dieser Teil enthält auch Grundsätze und Regeln für Tragwerke, bei denen sich die Temperatureinwirkungen hauptsächlich aus ihrer Nutzung ergeben (z. B. Kühltürme, Silos, Tanks, warme und kalte Lagereinrichtungen, Wärmekammern und Kühlhäuser usw.).
ANMERKUNG Ergänzende Hinweise zu Temperatureinwirkungen auf Schornsteine sind in EN 13084-1 enthalten.
1.2 Annahmen
Die in Annahmen von FprEN 1990:2022, 1.2 gelten für EN 1991-1-5.
Eurocode 1 - Actions sur les structures - Partie 1-5 : Actions thermiques
1.1 Domaine d'application de l'EN 1991-1-5
(1) L'EN 1991-1-5 donne des principes et des règles de calcul des actions thermiques agissant sur les bâtiments, les ponts et autres structures, y compris sur leurs éléments structuraux. Elle fournit également les principes relatifs aux revêtements extérieurs et autres éléments rapportés des bâtiments.
(2) La présente partie décrit les variations de température des éléments structuraux. Elle donne des valeurs caractéristiques des actions thermiques utilisables pour le dimensionnement des structures exposées à des variations climatiques journalières et saisonnières.
(3) La présente partie donne également des principes pour les variations de température des éléments structuraux dues à la pose d'asphalte chaud sur les tabliers de ponts.
(4) La présente partie fournit également des principes et des règles pour les actions thermiques agissant sur les structures qui dépendent principalement de leur utilisation (par exemple : tours de refroidissement, silos, réservoirs, installations de stockage d’eau chaude et froide, services de distribution d’eau chaude et froide, etc.).
NOTE L'EN 13084-1 donne des recommandations supplémentaires sur les actions thermiques agissant sur les cheminées.
1.2 Hypothèses
Les hypothèses formulées dans le FprEN 1990:2022, 1.2 s'appliquent à l'EN 1991-1-5.
Evrokod 1 - Vplivi na konstrukcije - 1-5. del: Toplotni vplivi
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2023
Evrokod 1 - Vplivi na konstrukcije - 1-5. del: Toplotni vplivi
Eurocode 1 - Actions on structures - Part 1-5: Thermal actions
Eurocode 1 - Einwirkungen auf Tragwerke - Teil 1-5: Allgemeine Einwirkungen -
Temperatureinwirkungen
Eurocode 1 - Actions sur les structures - Partie 1-5 : Actions thermiques
Ta slovenski standard je istoveten z: prEN 1991-1-5
ICS:
91.010.30 Tehnični vidiki Technical aspects
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
EUROPEAN STANDARD
prEN 1991-1-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2023
ICS 91.010.30 Will supersede EN 1991-1-5:2003
English Version
Eurocode 1 - Actions on structures - Part-1-5: General
actions - Thermal actions
Eurocode 1 - Actions sur les structures - Partie 1-5: Eurocode 1 - Einwirkungen auf Tragwerke - Teil 1-5:
Actions générales - Actions thermiques Allgemeine Einwirkungen - Temperatureinwirkungen
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, Türkiye 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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1991-1-5:2023 E
worldwide for CEN national Members.
prEN 1991-1-5:2023 (E)
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 8
1.1 Scope of EN 1991-1-5 . 8
1.2 Assumptions . 8
2 Normative references . 8
3 Terms, definitions and symbols . 8
3.1 Terms and definitions . 8
3.2 Symbols and abbreviations . 9
3.2.1 Latin upper-case letters . 10
3.2.2 Latin lower case letters . 11
3.2.3 Greek lower-case letters . 11
4 Design situations . 11
5 Classification of actions . 11
6 Representation of actions . 11
7 Thermal actions on buildings . 12
7.1 General. 12
7.2 Determination of temperatures . 13
7.3 Determination of temperature profiles . 14
8 Thermal actions on bridges . 15
8.1 Bridge decks . 15
8.1.1 Bridge deck types . 15
8.1.2 Consideration of thermal actions . 15
8.1.3 Uniform temperature component . 16
8.1.4 Temperature difference components . 18
8.1.5 Simultaneity of uniform and temperature difference components . 24
8.1.6 Differences in the uniform temperature component between different structural
members . 24
8.2 Bridge piers . 25
8.3 Thermal actions due to hot paving . 25
9 Thermal actions on industrial chimneys, silos, tanks and cooling towers . 26
9.1 General. 26
9.2 Determination of temperature components . 26
9.3 Values of temperature components . 26
9.4 Simultaneity of temperature components . 27
Annex A (normative) Adjustment of shade air temperature for an annual probability p of
being exceeded . 29
A.1 Field of application . 29
A.2 Adjustment using extreme value distribution . 29
Annex B (normative) Vertical temperature differences with various surfacing thickness
using Approach 2 . 31
prEN 1991-1-5:2023 (E)
B.1 Field of application . 31
B.2 Vertical temperature differences . 31
Annex C (informative) Temperature profiles in buildings and other construction works . 34
C.1 Use of this Informative Annex . 34
C.2 Field of application . 34
C.3 Thermal transmission theory . 34
Bibliography . 36
prEN 1991-1-5:2023 (E)
European foreword
This document (prEN 1991-1-5:2023) 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 1991-1-5:2005.
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 Mandate M/515
issued 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.
prEN 1991-1-5:2023 (E)
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 structure
— 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
— < New parts >
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 1991
(1) EN 1991 provides the actions to be considered for the structural design of buildings, bridges and
other civil engineering works, or parts thereof, including temporary structures, in conjunction with
EN 1990 and the other Eurocodes.
(2) The actions on structures, including in some cases geotechnical structures in conjunction with
EN 1997 as appropriate, provided in EN 1991 are intended to be applied in conjunction with the other
Eurocodes for the verification of safety, serviceability and durability, as well as robustness of
structures, including the execution phase.
(3) The application of this document for the verifications mentioned in (2) follows the limit state
principle and is based on the partial factor method, unless explicitly prescribed differently.
(4) EN 1991 does not cover actions for structures in seismic regions, unless explicitly prescribed by
EN 1998. Provisions related to such requirements are given in EN 1998, which complements and is
consistent with EN 1991.
prEN 1991-1-5:2023 (E)
(5) EN 1991 is also applicable to existing structures for their:
— structural assessment,
— retrofitting (strengthening, repair) design,
— assessment for changes of use.
NOTE In this case additional or amended provisions can be necessary.
(6) EN 1991 is applicable to the design of structures where materials or actions outside the scope of
the other Eurocodes are involved.
NOTE In this case additional or amended provisions can be necessary.
0.3 Introduction to EN 1991-1-5
EN 1991-1-5 gives design guidance for thermal actions arising from climatic and operational
conditions on buildings and civil
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