BSI PD CEN/TS 17551:2021

$142.49

Fixed firefighting systems. Automatic sprinkler systems. Guidance for earthquake bracing

Published By	Publication Date	Number of Pages
BSI	2021	32

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Categories: 13.220.20 - Fire protection, BSI

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This document specifies requirements for earthquake protection of automatic sprinkler systems in accordance with EN 12845. This document applies only to locations in earthquake zones in accordance to EN 1998‑1:2004, 3.2.11 and for area subject to peak ground acceleration above 9 % of g.

This document does not cover all legislative requirements. In certain countries specific national regulations apply and take precedence over this document. Users of this document are advised to inform themselves of the applicability or non-applicability for this document by their national responsible authorities.

PDF Catalog

PDF Pages	PDF Title
2	undefined
7	1 Scope 2 Normative references 3 Terms and definitions 4 Design principles
8	5 Sway bracing and sprinkler pipe support 5.1 General
9	5.2 Sway brace design 5.2.1 Steps in designing sway brace 5.2.2 Step 1, define sway bracing locations 5.2.2.1 Risers
12	5.2.2.2 Vertical distribution pipe or main distribution pipe piping 5.2.2.3 Horizontal changes of direction 5.2.2.4 Ends of main distribution pipes and distribution pipes 5.2.2.5 Unnecessary flexible couplings 5.2.2.6 Straight pipe runs
14	5.2.3 Step 2, calculate seismic design load requirements for each sway bracing location 5.2.3.1 General
15	5.2.3.2 Eurocode method in accordance to EN 1998-1:2004
16	5.2.3.3 Simplified method
17	5.2.3.4 Calculation of design load for four-way sway bracing at risers 5.2.3.5 Calculation of design load for lateral two-way sway bracing 5.2.3.6 Calculation of design load for longitudinal two-way sway bracing
18	5.2.4 Step 3, select the proper sway bracing shape, size and maximum length 5.2.4.1 General 5.2.4.2 For using one vertical and one diagonal brace
19	5.2.4.3 For using two opposing diagonal braces
20	5.2.4.4 For tension only sway bracing
21	5.2.4.5 For the case where the piping is supported firmly against the underside of a structural member 5.2.5 Step 4, select the proper method to attach the sway bracing to the structure and to the piping 5.2.5.1 General
22	5.2.5.2 Attachment to the structure 5.2.5.3 Structural members 5.2.5.4 Fasteners
23	5.2.5.5 Attachment to Sprinkler Piping
25	5.3 Anchorage for in rack sprinklers 5.3.1 General 5.3.2 Storage Racks with In-rack Sprinklers
26	5.4 Type, attachment and locations of hangers
27	6 Flexibility 6.1 General
28	6.2 Flexible Couplings 6.2.1 General 6.2.2 Risers and standpipes 6.2.3 Vertical main distribution pipes and distribution pipes 6.2.4 Horizontal main distribution pipes and distribution pipes 6.2.5 Drops
29	6.3 Seismic separation assemblies
31	7 Clearance 7.1 Clearance around piping through walls or floors 7.2 Clearance at sprinklers 8 Other provisions 8.1 Suspended ceilings 8.2 Water supply