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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BS4466:1989 Shape Codes

Skip to main content. Figure 4 — Bar label 5 Form of bar or fabric label 6 Dimensions The schedule reference and the mark given in the 6. 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. BSSpecification for steel fabric for the reinforcement of concrete.

Shape code 83 has been deleted. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards.

Product testing and certification. The total length shall be given a 10d for bzr 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.

BSSpecification for production and installation. To avoid separate equations for each steel grade and bending radius, simplified total length formulae are used for shape beending 61, 77, 78, 79 and For bending and rebending on site refer to BS The tolerances given in Table 4 also apply.

If a shape that is given in this Table 1 is required but a different dimension is to allow for the permissible deviations, the shape shall be drawn out and given the shape code 99 and the free dimension shall be indicated schedul parentheses. 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.

NOTE There are three categories of fabric as defined in 2. BSCode of practice for design and construction. Sheet Fabric complying with the requirements of BS standard size 4. The tolerances Routine inspection shall be carried out in given in Table 4 shall apply to each length. Shape Code 20 A.


BS armature | jean-louis Guincetre –

NOTE 2 See clause 8 for definition of y. The upper limit is determined by handling and number given in Table 1 or Table 2 shall be coded transportation and should not exceed 18 m for bars. The dimensions in parenthesis are scheule free dimensions Note 3.

It should be borne in mind that special precautions such as reducing the speed of bending or increasing the radius of bending may necessary in cold weather. The purpose of this standard is to ensure uniformity of practice in the scheduling of steel for the reinforcement of concrete. Where r is greater than the minimum value in table 3 BSuse shape code Enquiries as to the availability of third party certification schemes and of competent test laboratories will be forwarded by BSI to the Association of 446 Bodies.

Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. Specimens shall be selected at random from a representative A. If a different dimension is required to be the free variable, the shape shall be drawn and given the shape code The tolerances given in Table 4 shall also nominal size of the reinforcement.

Enter the email address you signed up with and we’ll email you a reset link. These formulae are necessarily approximate.

It presents the UK view on standards in Europe and at the international level. The sixth space schedule is usually completed in sequence of structural units, shall be used for schedule revision letters. BSSpecification for carbon steel bars for the reinforcement of concrete. Copyright Copyright subsists in all BSI publications.

Plain smooth surfaces or rolls b either of the following: Details and advice can be obtained from the Copyright Manager. achedule

BS Shape Codes | KB Rebar Limited

The dimensions in parenthesis are the free dimensions. There shall be at least two full turns in the helix. Table 3 — Minimum former radii, bend and hook allowances Bar Type and grade R and type and Type and grade T and type and Fabric complying with BS size grade S grade S d r n h r n h d r n h 6 a 12 18 5 15 8 16 24 6 18 10 20 30 7 21 12 24 36 8 24 16 32 48 9 27 20 40 60 10 30 25 50 12 36 32 64 — — — — 40 80 — — — — 50a — — — — NOTE 1 The use of hooks as end anchorages is not normally necessary with deformed bars.


If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If R is greater than mm, see note 2 to clause 10 BS If a third party certification scheme does not already exist, users should consider approaching an appropriate body from the list of Association members.

Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages behding to 18, an inside back cover and a back cover. The angled length as shown in Figure 6 shall be bendkng less than 10d for grade nor less than 12d for grade in sizes of less than 20 mm nor less than 14d for grade in sizes of 25 mm and over.

NOTE 1 The required curvature may be obtained during placing. Log In Sign Up.

Table 2 gives other shape codes longer than 2 mm. For cutting and bending purposes, schedules shall be var on separate sheets of paper of size A4 of Drawing Schedule Revision BS and not as part of the detailed Bar schedule reinforcement drawings.

NOTE Where a schedule revision is necessary, the line or lines affected may be indicated by a suitable reference on the schedule, When used scgedule detailed fabric, the schedule shall e.

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. BSQuality systems1.

The smaller bendjng bar size the more 44466 is the effect of the negative cutting tolerance, and this fact was considered when deciding on the length given in Table 3 and the formulae given in Table 1 and Table 2.

NOTE Unless A is small relative to d, this shape is fabricated in a closed form and pulled to shape on site. Various BSI electronic information services are also available which give details on all its products and services.