EN 1991-1-3:2003/A1:2015
(Amendment)Eurocode 1 - Actions on structures - Part 1-3: General actions - Snow loads
Eurocode 1 - Actions on structures - Part 1-3: General actions - Snow loads
Assessment of loads imposed by snow to be used in the structural design of buildings and civil engineering works on sites at altitudes below 1500 m.
Eurocode 1 - Einwirkungen auf Tragwerke - Teil 1-3: Allgemeine Einwirkungen - Schneelasten
Eurocode 1 - Actions sur les structures - Partie 1-3 : Actions générales - Charges de neige
Evrokod 1: Vplivi na konstrukcije - 1-3. del: Splošni vplivi - Obtežba snega
General Information
- Status
- Withdrawn
- Publication Date
- 01-Sep-2015
- Withdrawal Date
- 13-Apr-2025
- Technical Committee
- CEN/TC 250 - Structural Eurocodes
- Drafting Committee
- CEN/TC 250/SC 1 - Eurocode 1: Actions on structures
- Current Stage
- 9960 - Withdrawal effective - Withdrawal
- Start Date
- 26-Feb-2025
- Completion Date
- 14-Apr-2025
Relations
- Effective Date
- 05-Mar-2025
- Amends
EN 1991-1-3:2003 - Eurocode 1 - Actions on structures - Part 1-3: General actions - Snow loads - Effective Date
- 03-Jul-2013
Frequently Asked Questions
EN 1991-1-3:2003/A1:2015 is a amendment published by the European Committee for Standardization (CEN). Its full title is "Eurocode 1 - Actions on structures - Part 1-3: General actions - Snow loads". This standard covers: Assessment of loads imposed by snow to be used in the structural design of buildings and civil engineering works on sites at altitudes below 1500 m.
Assessment of loads imposed by snow to be used in the structural design of buildings and civil engineering works on sites at altitudes below 1500 m.
EN 1991-1-3:2003/A1:2015 is classified under the following ICS (International Classification for Standards) categories: 91.010.30 - Technical aspects. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 1991-1-3:2003/A1:2015 has the following relationships with other standards: It is inter standard links to EN 1991-1-3:2025, EN 1991-1-3:2003. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 1991-1-3:2003/A1:2015 is associated with the following European legislation: EU Directives/Regulations: 305/2011; Standardization Mandates: M/265. 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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Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2015
Evrokod 1: Vplivi na konstrukcije - 1-3. del: Splošni vplivi - Obtežba snega
Eurocode 1 - Actions on structures - Part 1-3: General actions - Snow loads
Eurocode 1 - Einwirkungen auf Tragwerke - Teil 1-3: Allgemeine Einwirkungen,
Schneelasten
Eurocode 1 - Actions sur les structures - Partie 1-3: Actions générales - Charges de
neige
Ta slovenski standard je istoveten z: EN 1991-1-3:2003/A1:2015
ICS:
91.010.30 7HKQLþQLYLGLNL Technical aspects
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 1991-1-3:2003/A1
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2015
EUROPÄISCHE NORM
ICS 91.010.30
English Version
Eurocode 1 - Actions on structures - Part 1-3: General
actions - Snow loads
Eurocode 1 - Actions sur les structures - Partie 1-3 : Eurocode 1 - Einwirkungen auf Tragwerke - Teil 1-3:
Actions générales - Charges de neige Allgemeine Einwirkungen, Schneelasten
This amendment A1 modifies the European Standard EN 1991-1-3:2003; it was approved by CEN on 17 July 2015.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of
this amendment into the relevant 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 amendment 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1991-1-3:2003/A1:2015 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Modifications to the Foreword . 4
2 Modification to 1.2, Normative references . 4
3 Modifications to 3.3. Exceptional conditions . 4
4 Modifications to 4.3. Treatment of exceptional snow loads on the ground . 5
5 Modifications to 5.2 Load arrangements . 5
6 Modifications to 5.3.1, General . 6
7 Modifications to 5.3.2, Monopitch roofs . 7
8 Modifications to 5.3.3, Pitched roofs . 8
9 Modifications to 5.3.4, Multi-span roofs . 9
10 Modifications to 5.3.5, Cylindrical roofs . 11
11 Modifications to 5.3.6, Roof abutting and close to taller construction works . 13
12 Modification to 6.2 Drifting at projections and obstructions . 13
13 Modification to Annex B (normative), Snow load shape coefficients for exceptional snow
drifts. 13
14 Modifications to Annex C (informative), European Ground Snow Load Maps . 13
European foreword
This document (EN 1991-1-3:2003/A1:2015) has been prepared by Technical Committee CEN/TC 250
“Structural Eurocodes”, the secretariat of which is held by BSI.
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 September 2016, and conflicting national standards
shall be withdrawn at the latest by September 2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
1 Modifications to the Foreword
th
Replace the 5 paragraph:
"Annexes A and B are normative. Annexes C, D and E are informative."
with the following one:
"Annex A is normative. Annexes B, C, D and E are informative.".
rd
In the final part "National Annex for EN 1991-1-3", in the final list, in the 3 line of the numbering of
subclauses, just after "3.3(1)," add "3.3(2),".
th
In the final part "National Annex for EN 1991-1-3", in the final list, in the 5 line of the numbering of
subclauses, just after "5.2(8)" add "5.3.1(1), Note to Table 5.2, 5.3.2(2)".
th
In the final part "National Annex for EN 1991-1-3", in the final list, in the 5 line of the numbering of
subclauses, after "5.3.4(3),", add "5.3.4(4),".
2 Modification to 1.2, Normative references
Delete the NOTE and the following reference:
"
NOTE: The following European Standards, which are published or in preparation, are cited in normative clauses
EN 1991-2 Eurocode 1: Actions on structures
Part 2: Traffic loads on bridges".
3 Modifications to 3.3, Exceptional conditions
Paragraph 3.3(2), replace:
"…….
b) the accidental design situation should be used for snow load cases determined using 5.2(3)P c)
and Annex B.
NOTE: See Annex A case B2."
with:
"…….
b) the accidental design situation should be used for snow load cases determined using 5.2(3)P c)
and appropriate load arrangements and snow load shape coefficients for exceptional snow drifts.
NOTE 1: See Annex A case B2.
NOTE 2: The National Annex may specify the load arrangements to be used for exceptional snow drifts, also
making reference to the informative Annex B, where its use is allowed (see also 5.3 and 6.2).".
Paragraph 3.3(3), replace:
"c) the accidental design situation should be used for the snow load cases determined using 5.2(3)P c)
and Annex B."
with
"
c) the accidental design situation should be used for the snow load cases determined using 5.2(3)P c)
and appropriate load arrangements and snow load shape coefficients for exceptional snow drifts.".
At the end of paragraph 3.3(3), add:
"NOTE 3: The National Annex may specify the load arrangements to be used for exceptional snow drifts, also
making reference to the informative Annex B, where its use is allowed (see also 5.3 and 6.2).".
4 Modifications to 4.3, Treatment of exceptional snow loads on the ground
Note to paragraph 4.3(1), replace:
"NOTE: The coefficient C may be set by the National Annex. The recommended value for C is 2,0 (see also
esl esl
2(3))"
with:
"NOTE: The coefficient C and locations of its application may be set by the National Annex. The recommended
esl
value for C is 2,0 (see also 2(3))".
esl
5 Modifications to 5.2 Load arrangements
Paragraph 5.2(2), replace:
"(2) The load arrangements should be determined using 5.3; and Annex B, where specified in
accordance with 3.3.
NOTE: The National Annex may specify the use of Annex B for the roof shapes described in 5.3.4, 5.3.6 and 6.2, and
will nor
...
SIST EN 1991-1-3:2004/A1:2015の標準は、雪荷重に関する重要な指針を提供しており、建物や土木工事の構造設計において必須となる情報を含んでいます。この標準の範囲は、1500メートル未満の高地における雪によって課せられる荷重の評価に特化しており、地域ごとの気候条件を反映した信頼性の高いデータを提供します。 この標準の強みは、その詳細な計算方法と実用的なアプローチにあります。雪荷重の設計において、実際の環境条件を考慮したモデルを使用するため、構造物の安全性を高めることができます。具体的には、雪の密度、降雪のパターン、風の影響など、様々な要因を取り入れた評価方法が特徴です。これにより、設計者は理論的背景と実務に即したデータを適切に活用でき、より安全な設計が可能になります。 さらに、この標準は、EU全体での建設基準の調和を図るための重要な役割を果たしています。異なる国々が同一の基準に基づいて設計を行うことで、雪荷重に対する一貫したアプローチを確立し、国際的な貿易やプロジェクトの円滑な進行が促進されます。そのため、SIST EN 1991-1-3:2004/A1:2015は、建物や土木工事において信頼性のある基準として、特に雪の影響が重要な地域での適用が期待されます。 このように、SIST EN 1991-1-3:2004/A1:2015は、雪荷重の評価における信頼性、実用性、国際的な整合性を兼ね備えた標準であり、特に建設業界においてその重要性は増しています。
The standard EN 1991-1-3:2003/A1:2015, commonly referred to as Eurocode 1, provides comprehensive guidelines for assessing snow loads that impact the structural design of buildings and civil engineering works. Its primary scope focuses on sites situated at altitudes below 1500 meters, ensuring that it addresses the typical conditions encountered in most European locations. One of the significant strengths of this standard lies in its methodical approach to defining snow loads. It incorporates various factors, including geographical location, terrain, and exposure, thereby offering a nuanced framework that enhances safety and reliability in structural design. The document emphasizes a risk-based assessment, allowing designers to account for the variability in snow accumulation and the potential for load effects, which is critical in preventing structural failures. Moreover, the EN 1991-1-3:2003/A1:2015 aligns with other European standards, promoting consistency and integration within the Eurocode framework. This relevance is underscored by its applicability across different types of structures, making it an essential resource for engineers and architects engaged in the planning and construction of both residential and commercial buildings. In addition, it facilitates a harmonized approach by providing a common set of principles and calculations, which is invaluable for international projects or collaborations across Europe. This not only aids compliance with regulatory requirements but also supports broader sustainability goals by ensuring that structures can withstand the environmental pressures posed by snow loads. Overall, the standard EN 1991-1-3:2003/A1:2015 is pivotal in guiding the engineering community towards safe and efficient design practices concerning snow loads, reinforcing its significance and relevance in today's construction landscape.
SIST EN 1991-1-3:2004/A1:2015는 건축물 및 토목 공사의 구조 설계에 필요한 눈 하중에 대한 일반적인 행동을 규명하는 유로 코드 1의 일환으로, 1500m 이하의 고도에서 적용되는 눈에 의한 하중의 평가를 다룹니다. 이 표준은 기후 조건에 따른 눈 하중의 변동성을 체계적으로 반영하고, 이를 통해 구조물의 안전성 및 내구성을 확보하는 데 중요한 역할을 합니다. 이 표준의 강점은 다양한 지역에서의 눈 하중 데이터와 이를 효과적으로 적용할 수 있는 방법론을 제공한다는 것입니다. 눈 하중의 측정 및 평가에 있어 사용되는 규칙들은 과학적 근거에 기반하고 있으며, 이를 통해 설계자들은 보다 정확한 하중 추정을 할 수 있습니다. 특히, 다양한 지형과 기후에 따른 눈 하중의 특성을 세분화하여 명확하게 정의하고 있어, 각 지역의 특성에 맞는 설계 지침을 제공하는 점이 주목할 만합니다. 또한 SIST EN 1991-1-3은 구조물의 안전성을 높이는 데 필수적인 기준을 제시합니다. 눈 하중을 고려한 구조적 결정을 내리는 것은 건물의 설계뿐만 아니라, 토목 공사에도 직접적인 영향을 미치며, 이로 인해 공공의 안전을 확보하는 데 기여하는 바가 큽니다. 따라서 이 표준은 토대가 되고 있는 유럽 전체의 건축 및 엔지니어링 분야에서 매우 중요한 것으로, 모든 관련 업계 종사자들에게 필수적으로 숙지되어야 할 내용입니다. SIST EN 1991-1-3:2004/A1:2015는 눈 하중의 평가를 체계적으로 접근할 수 있게 해주는 동시에, 구조 설계의 신뢰성을 높이는 핵심적인 역할을 하고 있어, 현재와 미래의 건축 안전 기준을 마련하는 데 필수적이라 할 수 있습니다.
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