2. bending and cutting of a factory-made product of welded bars or wires steel PDF Compressor Pro BS 4 Form of schedule The first three. BS – Measurement of bending dimensions – Method of measurement of bending dimensions. Total length of bar (L) measured . schedule columns. 4 Form of schedule. 5 Form of bar or fabric label. 6 Dimensions. 7 Scheduling. B Bends and hooks. 9 Tolerances on cutting and bending.
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If a third party certification scheme does not already exist, users should consider approaching an appropriate body from the list of Association members.
Scheduule formal operative approval and testing system shall be implemented and operatives shall 12 Fabrication and routine inspection have been certified by the fabricator as having achieved minimum standards of competence.
BS4466:1989 Shape Codes
A major difference between this edition of BS and previous editions is that shape codes 60, 81, 72, 73, 74 and 86, which are specified by their internal dimensions, have been deleted and replaced by shape codes 61, 82, 77, 78, 79 and 87, which are specified by their external dimensions. Shape code 83 has been deleted. Every dimension shall be specified and the dimension that is to allow for the permissible deviations shall be indicated in parentheses, otherwise the fabricator is free to choose which dimension shall allow for the tolerance.
Before taking into account the cumulative cutting schwdule, the nominal value for y in Table 3 shall be calculated as follows: Note, unless A is small relative to d, this shape is schdeule in a closed form and pulled to shape on site.
These formulae are necessarily approximate. The r, n and h values shall be given on and over.
BS armature | jean-louis Guincetre –
NOTE Unless A is small relative to d, this shape is fabricated in a closed form and pulled to shape on site. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies.
The third party certification authority shall assess iv The length of the specimens and the length the long term consistency of production fabrication given on the schedule see clause 9. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover.
There shall be at least two full turns in the helix. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 18, an inside back cover and a back cover.
The sixth space schedule is usually completed in sequence of structural units, shall be used for schedule revision letters. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service.
NOTE Normally the total length should not exceed 12 m, although longer lengths may be obtained by special arrangement Shapes that do not have a specific shape code with ebnding supplier. Apart from any information required by the supplier 6. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically bendinf the latest editions of standards. The methods of of 4d between the curved portion of the bends, as measurement shall be in accordance with those shown in Figure 7.
Details and advice can be obtained from the Copyright Manager. The purpose of this standard is to ensure uniformity of practice in the scheduling of steel for the reinforcement of concrete.
Specimens shall be selected at random from a representative A. A British Standard does not purport to include all the necessary provisions of a contract.
In practice, rolling and bending tolerances, and the fact that the circumscribing diameter apply to shape code Log In Sign Up. Copyright Copyright subsists in all BSI publications. The total length bendig be given a 10d for grade material; and, unless there is an end anchorage bend or hook, b 12d for grade material not exceeding sizes one bending dimension, preferably an end of 20 mm; dimension, shall be indicated in parentheses as the free dimension to allow for the permissible c 14d for grade material in sizes of 25 mm deviations.
British Standard Shape Codes Call to find out more. Figure 4 — Bar label 5 Form of bar or nending label 6 Dimensions The schedule reference bendong the mark given in the 6.
NOTE The titles of publications referred to in this standard are listed on the inside back cover. Plain smooth surfaces or rolls b either of the following: Method of measurement of bending dimensions. The dimensions in parenthesis are the free dimensions.