NOTE 1 bars can be connected by an electroforge process in a manner that can be demonstrated if required, by calculation or test, that they meet the appropriate design criteria and are fit for the purpose for which they are intended. Alternatively, binding NOTE 2 Where end plates transfer the load from stair treads through a ledge support, the amount of welding can be reduced, if this can be demonstrated by calculation or test. BS 8. However, where the binding bars are subject to load transfer from bearing bars, including end plates for stair treads, the connection between them shall be provided, if welded, by a fillet weld.
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A list of organizations represented on this committee can be obtained on request to its secretary. Information about this documentThis part of BS incorporates some of the requirements of BS that will be removed from BS in due course. It has been assumed in the preparation of this British Standard that the execution of its provisions will be entrusted to appropriately qualified and experienced people, for whose use it has been produced.
Commentary, explanation and general informative material is presented in smaller italic type, and does not constitute a normative element. Requirements in this standard are drafted in accordance with The BSI guide to standardization — Section 2: Rules for the structure, drafting and presentation of British Standards, subclause This means that only those products that are capable of passing the specified test will be deemed to conform to this standard.
Contractual and legal considerationsThis publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. In addition to the definitive requirements, this standard also requires the items detailed in BS , Clause 4 to be documented.
For compliance with this standard, both the definitive requirements and the documented items have to be satisfied. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced documents including any amendments applies.
For compliance with the standard both the definitive requirements specified throughout this part of BS and those specified in BS , Clause 4 and the following documented item shall be satisfied.
Stainless steel shall, as a minimum, conform to the requirements of austenitic steel specified in BS EN Figure 1 Grating terms continued Key1 Erection clearance from inside of toe plate to face of column SpanPressed barBinding barGrating depthBearing bar pitchTransverse barsErection clearanceWidthCurb angle with grouting tangs Top clipBottom clipBoltGrating starting edge2 Wall or column3 Slip resistant strip nosing at top of stair or step-off point and tread4 Cut-out with straight shaping and toe plate5 Bearing bars6 Curb angle used on edge of concrete rebate7 Cut-out with curved shaping and toe plate8 Transverse bar pitch9A Length of serration see 6.
BS 4592-1-2006 Industrial Type Flooring and Stair Treads. Metal Open Bar Gratings - Specification