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BSI 23/30455838 DC 2023

BSI 23/30455838 DC 2023

$13.70

BS EN 1991-1-3. Eurocode 1. Actions on structures – Part 1-3. Snow loads

Published By Publication Date Number of Pages
BSI 2023 40
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1.1 Scope of EN 1991-1-3 (1) EN 1991-1-3 gives principles and rules to determine the values of loads due to snow to be used for the structural design of buildings and civil engineering works. (2) This Part does not apply to sites at altitudes above 1500 m, unless otherwise specified. NOTE For rules for the treatment of snow loads for altitudes above 1500 m see 6.1. (3) This Part does not give guidance on specialist aspects of snow loading, for example: – impact snow loads resulting from snow sliding off or falling from a higher roof; – changes in shape or size of the construction works due to the presence of snow or the accretion of ice which could affect the wind action; – loads in areas where snow is present all year round; – lateral loading due to snow creep (e.g. lateral loads exerted by drifts); – loads due to artificial snow. 1.2 Assumptions The assumptions given in FprEN 1990:2022, 1.2 apply to EN 1991-1-3.

PDF Catalog

PDF Pages PDF Title
10 1 Scope
1.1 Scope of EN 199113
1.2 Assumptions
2 Normative references
3 Terms, definitions and symbols
3.1 Terms and definitions
12 3.2 Symbols and abbreviations
3.2.1 Latin upper-case letters
3.2.2 Latin lower case letters
13 3.2.3 Greek lower-case letters
14 4 Design situations
4.1 General
4.2 Normal conditions
4.3 Exceptional conditions
5 Modelling of snow load
5.1 Classification of actions
5.2 Design assisted by testing
15 6 Snow load on the ground
6.1 Characteristic values
6.2 Treatment of exceptional snow loads on the ground
7 Snow load on roofs
7.1 Load arrangements
16 7.2 Determination of snow load
7.3 Exposure coefficient
17 7.4 Thermal coefficient
18 7.5 Snow load shape coefficients
7.5.1 Field of application
7.5.2 Flat roofs
21 7.5.3 Pitched roofs
23 7.5.4 Multi-span roofs
24 7.5.5 Cylindrical roofs
26 7.5.6 Domes
27 7.5.7 Roof abutting and close to taller construction works
30 8 Local Effects
8.1 Local verifications
8.2 Drifting at obstructions
31 8.3 Drifting at parapets
32 8.4 Snow overhanging the edge of a roof
33 8.5 Snow loads on snow guards and other obstacles
8.6 Drifting at intersecting pitched roofs
35 Annex A (informative)Ground snow load maps
A.1 Use of this Informative Annex
A.2 Scope and field of application
A.3 Treatment of ground snow load measurements
36 A.4 Zoning
A.5 Climate change effect
37 Annex B (informative)Adjustment of ground snow load to return period
B.1 Use of this Informative Annex
B.2 Scope and field of application
B.3 Adjustment of the ground snow load according to the return period
39 Annex C (informative)Bulk snow weight density
C.1 Use of this Informative Annex
C.2 Scope and field of application
C.3 Bulk snow weight density

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BSI 23/30455838 DC 2023
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