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BS 4592-1:1995:2003 Edition

BS 4592-1:1995:2003 Edition

$102.76

Industrial type flooring, walkways and stair treads – Specification for open bar gratings

Published By Publication Date Number of Pages
BSI 2003 18
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Materials, sizes, permission deviations, construction, performance and marking. Appendices give methods of test, information to be given in an enquiry or order and recommendations for installation.

PDF Catalog

PDF Pages PDF Title
1 BRITISH STANDARD
2 Committees responsible for this British�Standard
3 Contents
5 1 Scope
2 References
3 Definitions
3.1 types of bar
3.1.1 loadbearing
3.1.2 transverse
3.1.3 pressed
3.1.4 binding
3.1.5 serrated
3.2 nosing
6 3.3 end plate
3.4 support
3.5 curb angle
3.6 cut-out
3.7 straight shaping
3.8 curved shaping
3.9 toe plate
3.10 sizes of gratings
3.10.1 length (span)
3.10.2 width
3.10.3 pitch
3.10.4 depth
3.11 effective span
7 Figure 1 Grating terms
8 4 Information to be supplied
5 Materials
5.1 Steel
5.2 Aluminium
5.3 Protection against corrosion
9 6 Sizes
6.1 The minimum thickness of loadbearing bars shall be 3 mm, subject to the tolerances given in t…
6.2 The cross-sectional area of transverse bars (see�
6.3 The clear distance between loadbearing bars or adjacent panels of grating, providing they are…
6.4 The pitch of transverse bars shall not exceed�165�mm and the pitch of pressed bars shall not …
6.5 For serrations (see
7 Permissible tolerances
7.1 The maximum permissible deviations from work sizes of gratings shall be as shown in
Table 1 Permissible tolerances
7.2 The maximum permissible manufacturing tolerances shall be as given in
10 Table 2 Manufacturing tolerances
8 Construction
8.1 Loadbearing bars shall be provided with lateral restraint by means of transverse bars (see
8.2 Welding of steel shall either be arc welding in accordance with BS 5135 or resistance welding.
8.3 Where the function of binding bars excludes load transfer, they shall be at least secured to …
8.4 Longitudinal ties between supports shall be below the underside of loadbearing bars.
8.5 When binding bars are applied along the length of a grating, they shall be secured at every t…
8.6 Where a cut-out (see
8.7 Where binding bars are loadbearing they shall at least be equivalent in depth to the loadbear…
8.8 Where nosings are specified, they shall be used consistently throughout the stair.
11 9 Performance
Loads
9.1 General
9.2 Flooring and walkways
Table 4 Load factors and combinations
12 9.3 Treads
Figure 2 Imposed load on treads
10 Marking
10.1 The following particulars shall be clearly marked on the delivery note, invoice or supplier’…
10.2 Gratings shall be marked with a reference number to assist assembly on site.
13 Annex A (normative) Method of test for strength and deflection
A.1 Test procedure
A.2 Method of support
A.3 Uniformly distributed load (flooring or walkway)
A.3.1 Load application
A.3.2 Deflection monitoring
A.4 Concentrated load (flooring or walkway)
A.4.1 Load application
A.4.2 Deflection monitoring
A.5 Concentrated load (treads)
A.5.1 Load application
A.5.2 Deflection monitoring
14 Annex B (informative) Recommendations for installation of gratings
B.1 General
B.2 Fixing clips
B.3 Toe plates
B.4 End plates for stair treads
15 B.5 Erection clearances
Figure B.1 Fixing dimensions for bolted end plates

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BS 4592-1:1995
$102.76