《BS-8666-2005.pdf》由会员分享，可在线阅读，更多相关《BS-8666-2005.pdf（32页珍藏版）》请在三一文库上搜索。
1、BRITISH STANDARD BS 8666:2005 Incorporating Amendment No. 1 Scheduling, dimensioning, bending and cutting of steel reinforcement for concrete Specification ICS 77.140.15; 91:080.40 ? BS 8666:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee o
2、n 21 September 2005 First published April 2000 BSI 2008 First revision September 2005 The following BSI references relate to the work on this standard: Committee reference ISE/9/1 Draft for comment 04/30109898 DC ISBN 978 0 580 60699 1 Committees responsible for this British Standard The preparation
3、 of this British Standard was entrusted by Technical Committee ISE/9, Steel for concrete reinforcement, to Subcommittee ISE/9/1, Bars, wire and fabric for concrete reinforcement, upon which the following bodies were represented: British Coatings Federation British Precast Concrete Federation Concret
4、e Society Department of Transport Highways Agency Galvanizers Association Institution of Structural Engineers UK Certification Authority for Reinforcing Steels UK Steel Association Amendments issued since publication DateComments Amendment No. 131 January 2008 Changes to Table 1. Amd No. BS 8666:200
5、5 i Contents Page Committees responsibleInside front cover Forewordii 1Scope 1 2Normative references 1 3Terms and definitions 1 4Notation 2 5Form of schedule 3 6Form of bar or fabric label 4 7Dimensions 8 8Scheduling 8 9Tolerances on cutting and bending dimensions 21 10Radius of bending 21 11Bending
6、 of fabric reinforcement 22 12Fabrication and routine inspection 23 Annex A (informative) Third party certification and batch testing 25 Figure 1 Form of bar schedule 5 Figure 2 Form of fabric schedule 6 Figure 3 Purpose made fabric example 7 Figure 4 Dimensioning of an acute angle 9 Figure 5 Dimens
7、ioning of cranked bars 9 Figure 6 Example of bar with more than one bend 10 Figure 7 Bending instruction sketches 22 Figure 8 Position of welded transverse bars 22 Table 1 Notation of steel reinforcement 2 Table 2 Minimum scheduling radii, former diameters and bend allowances 11 Table 3 Standard sha
8、pes, their method of measurement and calculation of length 12 Table 4 Standard fabric types and stock sheet size 20 Table 5 Tolerances 21 Table 6 Maximum limit for which a preformed radius is required 21 Table 7 Frequency of inspection 24 BSI 2008 BS 8666:2005 ii Foreword This British Standard has b
9、een prepared by Subcommittee ISE/9/1. It supersedes BS 8666:2000, which is withdrawn. The standard has been revised to incorporate: shape codes available under BS EN ISO 3766:2003; revised notation in accordance with BS 4449:2005 and BS EN 10080:2005; revisions to BS 4449:2005 (including the omissio
10、n of grade 250 and grade 460 reinforcement), BS 4482:2005 and BS 4483:2005; the requirements of BS 4483:2005 have caused the withdrawal of standard fabrics A98 and B196, and changes to standard fabrics C503, C385 and C283; the provisions of BS EN 1992-1-1 (including the preclusion of wire to BS 4482
11、:2004 for use for structural purposes); rationalization of notes to the table of standard shapes (Table 3); electronic data files; revisions to fabrication and routine inspection. Assessed capability. Users of this British Standard are advised to consider the desirability of quality system assessmen
12、t and registration against BS EN ISO 9001:2000 by an accredited third-party certification body (see Annex A). This standard comes into effect on 1 January 2006. . This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct applicatio
13、n. Compliance with a British Standard cannot confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 26, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when
14、 the document was last issued. The start and finish of text introduced or altered by Amendment No. 1 is indicated in the text by tags !“ BSI 2008 BS 8666:2005 1 1 Scope This British Standard specifies requirements for the scheduling, dimensioning, bending, and cutting of steel for the reinforcement
15、of concrete conforming to BS 4449:2005, BS 4483:2005 and BS 6744, designed to BS EN 1992-1-1, BS EN 1992-2, BS EN 1992-3 and BS 8110. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies
16、. For undated references, the latest edition of the referenced document (including any amendments) applies. BS 4449:2005, Carbon steel bars for the reinforcement of concrete Specification. BS 4483:2005, Steel fabric for the reinforcement of concrete Specification. BS 6744, Austenitic stainless steel
17、 bars for the reinforcement of concrete Specification. BS 8110-1, Structural use of concrete Code of practice for design and construction. BS EN 1992-1-1, Eurocode 2: Design of concrete structures Part 1.1: General rules and rules for buildings. BS EN 1992-2, Eurocode 2: Design of concrete structure
18、s Part 2: Concrete bridges Design and detailing rules. BS EN 1992-3, Eurocode 2: Design of concrete structures Part 3: Liquid retaining and containment structures. BS EN ISO 216:2001, Writing paper and certain classes of printed matter Trimmed sizes. A and B series. BS EN ISO 3766:2003, Construction
19、 drawings Simplified representation of concrete reinforcement. 3 Terms and definitions For the purposes of this British Standard the following terms and definitions apply. 3.1 bar steel product of any cross-section conforming to BS 4449:2005 or BS 6744 3.2 nominal size nominal diameter diameter of a
20、 circle, d, with an area equal to the effective cross-sectional area of the bar, sometimes referred to as its size 3.3 bar mark fabric mark identifying mark which cross-refers individual line entries on the schedule to the detailed drawing NOTE The bar (or fabric) mark also appears on the delivery l
21、abel. 3.4 shape code two-digit coded designation of the reinforcement shape NOTE See Table 3. 3.5 pitch centre-to-centre spacing of bars in a sheet of fabric 3.6 mesh rectangle defined by the pitch of the longitudinal bars and the pitch of the cross bars in a sheet of fabric BSI 2008 BS 8666:2005 2
22、3.7 fabric factory-made product consisting of welded bars conforming to BS 4483:2005 3.8 standard fabric fabric reinforcement where the bar and mesh arrangement can be defined by an identifiable fabric reference NOTE See Table 4. 3.9 purpose made fabric fabric manufactured according to users specifi
23、c requirements NOTE Purpose made fabric is therefore not included in Table 4. See Figure 3. 3.10 fabric reference alpha numeric designation denoting fabric in accordance with Table 4 3.11 bar schedule list of reinforcement types and sizes, quantities, shape codes, dimensions and bar mark numbers cro
24、ss- referring to the detailed drawing NOTE The preparation of the list is known as scheduling. See Figure 1. 3.12 fabric schedule list of fabric types, dimensions, quantities, and fabric mark numbers cross-referring to a detailed drawing NOTE See Figure 2. 3.13 link bent bar used to resist shear 4 N
25、otation The type and grade of steel reinforcement shall be designated as follows: Table 1 Notation of steel reinforcement Type of steel reinforcement Notation to BS 4449:2005 For diameters 12mm, Grade B500B or Grade B500C conforming to BS 4449:2005“ H Grade B500A conforming to BS 4449:2005 A Grade B
26、500B or Grade B500C conforming to BS 4449:2005 B Grade B500C conforming to BS 4449:2005 C A specified grade and type of ribbed stainless steel conforming to BS 6744:2001 S Reinforcement of a type not included in the above list having material properties that are defined in the design or contract spe
27、cification. X !NOTE 1 In the Grade description B500A, etc., “B” indicates reinforcing steel. NOTE 2 Within the ranges given, the grades(s) supplied for notations H and B are at the supplier s discretion.“ BSI 2008 !For diameters u 12mm, Grade B500A, Grade B500B or Grade B500C conforming BS 8666:2005
28、 3 5 Form of schedule 5.1 General For bar reinforcement, a bar schedule shall be prepared in accordance with the example given in Figure 1. The information and the order in which it is presented shall follow this example, but details of presentation are left to the individual. Standard fabric types
29、(see Table 4) may be called up on bar schedules, in which case the word fabric shall be followed by the fabric reference and area in m2 required across the width of the schedule. NOTE Standard fabrics may also be scheduled in accordance with the example given in Figure 2. The bar (or fabric) mark sh
30、all comprise simple and consecutive numbers or letters with a maximum of six characters. Where special end preparation is required (e.g. for couplers), the bar mark shall commence with “E”. The bar (or fabric) mark shall be used for labelling purposes in accordance with Clause 6. Purpose made fabric
31、s shall be scheduled in accordance with either Figure 2 or Figure 3. In the “type and size” column of the schedule, the notations specified in Clause 4 for the type and grade of reinforcement shall be given and this shall be followed by the nominal size in millimetres. The bar or fabric schedule sha
32、ll include the statement “This schedule conforms to BS 8666:2005”. 5.2 Paper-based schedules For schedules that are not produced on a computer, the minimum width of the columns in the bar and fabric schedules shall be as shown in Figure 1 and Figure 2. For computer produced schedules, the column wid
33、ths and the size of the schedule may vary from those shown in Figure 1 and Figure 2, but the sequence of columns shall be maintained. A schedule can consist of one or several sheets. Each sheet shall not be significantly larger than size A4 in accordance with BS EN ISO 216:2001. The schedule referen
34、ce shall be included at the top right-hand corner of the schedule form and shall be consecutively numbered. The schedule reference shall include: the last relevant characters of the relevant detailed drawing number or reference; up to two characters for the sheet number; one character for the revisi
35、on; one character (if necessary) for the schedule status. The styles “1 (of 6)” and “6 (and last)” may be used on manually prepared schedules but the words in parentheses shall not form part of the schedule reference. Where used, the status character shall be defined on the schedule (e.g. P prelimin
36、ary, T tender, C construction) but the character shall not form part of the schedule reference. EXAMPLE Where a schedule revision is necessary, the line or lines affected shall be indicated by a suitable reference on the schedule, e.g. “A” at the right-hand side of the schedule in Figure 1. The sing
37、le revision character in the schedule reference shall be revised in ascending order. Schedule reference Drawing No046 Sheet No03Revision A StatusC BSI 2008 BS 8666:2005 4 5.3 Electronic data files By agreement, bar and fabric schedules may be in the form of electronic data files (compared to say dig
38、ital images of paper based schedules); such files shall be prepared generally in accordance with 5.1 and 5.2 above. Each file shall include identification of: the system, software or industry standard and version number being used; contract information; drawing reference; schedule reference; creator
39、 of the schedule (with contact details); date of preparation; checker; date of checking; reviser; revision number or revision letter; date of last revision; member identifiers or names; data for each bar mark. The data for each bar mark shall be in the same sequence as the columns shown in Figure 1
40、and Figure 2. Each file shall be considered as a single entity; any revision should require the whole file to be issued as a new revision. 6 Form of bar or fabric label The schedule reference and the mark given in the “bar (or fabric) mark” column of the schedule shall be put on the labels attached
41、to the reinforcement. EXAMPLE The labels shall be durable and securely tied to the reinforcement. Apart from any information required by the supplier for his own identification and internal system, no other information shall appear on the label. Bar schedule reference04603A Bar mark7 BSI 2008 BS 866
42、6:2005 5 Figure 1 Form of bar schedule Paper width = 210 82515151510101010151515151510 302010 23 x 10 =230 Paper length = 297 MemberBar mark Type and size Length of each bar mm No. of mbrs No.of bars in each Total no.EIR* mm D* mm C* mm B* mm A* mm This schedule conforms to BS 8666:2005 * Specified
43、in multiples of 5 mm. Specified in mutliples of 25 mm. Shape codeRev letter Status: P Preliminary T Tender C Construction 7 BSI 2008 BS 8666:2005 6 Figure 2 Form of fabric schedule Purpose made fabric example 04 05 L L This schedule conforms to BS 8666: 2005 * Specified in multiples of 5 mm. Specifi
44、ed in multiples of 25 mm Status: P Preliminary T Tender C Construction Paper width = 210 BS reference or sheet detailsSpecial details and/or bending dimensions Fabric mark No. of wires Type and size mm Pitch mm Sheet length “L“ m Sheet width “B“ m Length mm O O mm 1 3 O O mm 2 4 Overhangs NO. of she
45、ets Shape code Bending instruction A* mm B* mm C* mm D* mm EIR* mm 302010 8129991599121212918 Paper length = 297 23 x 10 = 230 Rev letter 9999977 BSI 2008 BS 8666:2005 7 Figure 3 Purpose made fabric example Sheet width 2100 50200200150200 3H8-100 1200 7H8-100 100 2H8 Sheet length 5100 175 1400 8H6-2
46、00 15 00 11H6-150 15 00 8H6-200 175175175 Longitudinal bars Cross bars 12H850000.39523.7000.355 27H621000.22212.5870.189 36.2870.544 15 No. per sheet Size mm Length m Mass kg/m Mass/ sheet kg No. of sheets Total mass t Longitudinal Cross Fabric to BS 4483 Bending to BS 8666: 2005 BSI 2008 BS 8666:20
47、05 8 7 Dimensions 7.1 The dimensions given on the schedule shall be measured as shown in Table 3. For deformed reinforcement, the outside surface shall be the extremities of the ribs. The total length dimension specified on the schedule for each bar or for bars in each sheet or fabric shall be round
48、ed up to a multiple of 25 mm. 7.2 The bending dimensions of reinforcement shall be in accordance with Table 2. For bends (bobs) and hooks the minimum straight length beyond the end of the curved portion shall be 5d. For shear links, for bends less than 150, the minimum straight free length beyond th
49、e end of the curved portion shall be 10d, but U70 mm. The values of minimum end dimension P given in Table 2 include 5d or 10d of straight length beyond a bend of minimum radius, r, or minimum practical limits for cutting. Minimum scheduling radius, former diameter and bend allowances for type and grade X shall be specified in co