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BS EN 15620:2021

BS EN 15620:2021

$215.11

Steel static storage systems. Tolerances, deformations and clearances

Published By Publication Date Number of Pages
BSI 2021 76
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This document specifies tolerances, deformations and clearances that pertain to the production, assembly and erection and performance under load of pallet racking and cantilever racking. These tolerances, deformations and clearances are important in relation to the functional requirements and ensuring the proper interaction of the handling equipment used by personnel, trained and qualified as competent, in association with the specific type of racking system. The interaction conditions are also important in determining the reliability of the storage system to ensure that the chance of mechanical handling equipment impact, pallet impact or a system breakdown is acceptably low.

This document is limited to:

  1. single deep adjustable beam pallet racking operated with industrial trucks;

  2. single and double deep adjustable beam pallet racking operated with stacker cranes;

  3. drive-in and drive through racking systems operated with industrial trucks;

  4. cantilever racking systems operated with industrial trucks.

This document does not apply to specialized types of equipment such as automated trucks, miniload, satellite systems, systems involving the use of articulated trucks, trucks using intrusive stacking methods or industrial truck serviced rack-clad buildings.

This document specifically excludes the tolerances and deformation of the industrial trucks, stacker cranes and floors.

It is the responsibility of the specifier in cooperation with the client or user to ensure that the tolerances, deformations and clearances, as quoted in this document are acceptable for safe operation of the overall system considering all factors of influence and the user informed by means such as operation instructions. The specifier can carry out appropriate design/calculations to vary some of the parameters provided that an equivalent safe operation is achieved.

This document gives guidance to be used in conjunction with mechanical handling equipment and floor information.

PDF Catalog

PDF Pages PDF Title
2 undefined
10 1 Scope
2 Normative references
11 3 Terms and definitions
14 4 Symbols
16 5 Racking types
5.1 General
5.2 Crane racking Class 100
5.3 Crane racking Class 200
17 5.4 Very narrow aisle racking
5.4.1 General
5.4.2 Very narrow aisle (operator up)
18 5.4.3 Very narrow aisle (operator down)
5.4.4 Operation
5.5 Wide aisle and narrow aisle
5.5.1 Wide aisle
5.5.2 Narrow aisle
19 5.6 Cantilever racking
20 5.7 Drive-In racking
21 6 Racking used with Industrial trucks
6.1 Slab deformation due to settling and slab deflection
6.2 Installation tolerances
6.2.1 General
23 6.2.2 Tolerance field of frames in X direction
26 6.3 Deformation limits
6.3.1 Beam deformation limits in the Y direction
27 6.3.2 Frame deformations
6.3.3 Upright shortening
6.3.4 Guide rail deformation (VNA applications)
6.4 Clearances for unit loads and truck handling equipment in adjustable pallet racking
6.4.1 Clearances relating to the placement of unit loads
6.4.2 Horizontal and vertical clearances in a bay
6.4.2.1 General
29 6.4.2.2 VNA trucks
6.4.2.3 Trucks with visual aids
6.4.2.4 Reach trucks
6.4.2.5 Straddle stacker trucks
30 6.4.3 Clearances for upright protectors
6.4.4 Horizontal clearance in the depth
6.4.4.1 Requirements
33 6.4.4.2 Symmetrical situation, manual Z positioning
6.4.4.3 Non-symmetrical situation and/or Z2 ā‰  50 mm
6.4.5 Aisle width clearances (wide and narrow aisle racking)
6.4.5.1 Minimum aisle clearance for 90Ā° truck turning
34 6.4.5.2 Lowest unit load
6.4.6 Clearances for gangways
36 6.4.7 Aisle width clearances (VNA)
6.4.7.1 Minimum aisle clearance for truck and load
6.4.7.2 Lowest unit load
6.5 Pick up and deposit stations
37 7 Crane racking classes 100 and 200
7.1 General
7.2 Floor tolerances
7.3 Slab deformation due to settling and slab deflection
7.4 Top guide rail manufacturing and assembly tolerances
7.5 Installation tolerances (single deep and double deep)
7.6 Deformation limits
7.6.1 Beam deformation limitations in the Y direction
7.6.2 Frame deformations in the X and Z directions
38 7.6.3 Frame deformations in the X and Z directions for clad rack buildings and wind loads
7.6.4 Elastic shortening of uprights
39 7.7 Safety back stop
7.7.1 Deformations
7.7.2 Clearances
8 Cantilever racking
8.1 Installation tolerances
43 8.2 Verticality tolerances with regard to design and assembly
8.3 Cantilever racking deformation limits
8.3.1 General
44 8.3.2 Arm deformations
8.4 Cantilever column deformations in the X and Z directions
45 8.5 Clearances for unit loads and truck handling equipment
8.5.1 Clearances relating to the placement of unit loads
8.5.2 Horizontal and vertical clearances in a bay
47 9 Drive-In racking
9.1 Installation tolerances
50 9.2 Deformation limits
9.2.1 Beam rail deformation limits in the Y direction
51 9.2.2 Frame deformations
9.2.2.1 Sway
9.2.2.2 Upright bow
9.3 Minimum pallet bearing
9.4 Clearances for unit loads and truck handling equipment
9.4.1 Industrial truck requirement
52 9.4.2 Clearances relating to the placement of unit loads
9.4.3 Horizontal and vertical clearances
53 9.4.4 Horizontal clearances in the depth
9.4.5 Horizontal truck clearances
55 9.4.6 Vertical clearances
10 Racking to warehouse interface
56 Annex A (informative)General safety philosophy
A.1 General
57 A.2 Wide and narrow aisle width manoeuvring clearance
A.3 Environments with additional risk
58 A.4 Truck requirements
59 A.5 Floor tolerances and deformations
A.5.1 Sloping floors
A.5.2 Quasi-rigid floors
60 Annex B (informative)Racking measurement surveys
B.1 General
B.2 Agreed grid lines and datums
B.3 Principal grid lines and datums
B.4 Measurement survey reports
B.4.1 General
B.4.2 Measuring conditions
61 Annex C (informative)Effects of beam hogging and sagging deformations on clearances
C.1 Effects of beam hogging and sagging deformations on clearances X3, X4 and Y1, Y2 and Y3 for non-cantilevered beams
64 C.2 Effects of beam hogging and sagging deformations on X3 X4 and Y1, Y2 and Y3 for cantilevered beams (P & D stations)
66 Annex D (informative)Additional information for determining dimensions and clearances in the depth of the rack (Z direction) in case of palletised loads
D.1 Placement tolerances in the depth of the rack
67 D.2 Larger values of Z2a and Z2b
69 Annex E (informative)Additional information for very narrow aisle trucks in adjustable pallet racking
E.1 Considerations for the Z direction
E.2 Considerations in the Y direction
E.3 Considerations in the X direction
70 Annex F (informative)Consideration of tolerances and deformations in determining clearances
F.1 General
F.2 Storage systems other than single deep adjustable pallet racking
71 Annex G (informative)Sprinkler systems

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BS EN 15620:2021
$215.11