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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS 1722-2:2000 ICS 91.090
2、 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Fences Part 2: Specification for strained wire and wire mesh netting fences Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:22:05 GMT+00:00 2006, Uncontrolled Copy, (c) BSI This British Standard, having been prepared u
3、nder the direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on 15 April 2000 BSI 04-2000 First published March 1951 Second edition April 1963 Third edition October 1973 Fourth edition September 1989
4、 Fifth edition (incorporating BS 1722-3:1986) April 2000 The following BSI references relate to the work on this standard: Committee reference B/201 Draft for comment 99/105511 DC ISBN 0 580 33143 1 BS 1722-2:2000 Amendments issued since publication Amd. No.DateComments Committees responsible for th
5、is British Standard The preparation of this British Standard was entrusted to Technical Committee B/201, Fences, upon which the following bodies were represented: Association of Security Consultants British Precast Concrete Federation County Surveyors Society Department of the Environment, Transport
6、 and the Regions European Fencing Industry Association Fencing Contractors Association Forestry Commission Galvanizers Association National Farmers Union Security Facilities Executive The Open Spaces Society Timber Trade Federation UK Steel Association The following bodies were also represented in t
7、he drafting of the standard, through subcommittees and panels: National Council of Building Materials Producers Society of Chain Link Fencing Manufacturers UK Forest Products Association Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:22:05 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 172
8、2-2:2000 BSI 04-2000i Contents Page Committees responsibleInside front cover Forewordii 1Scope1 2Normative references1 3Terms and definitions1 4Materials for general pattern strained wire fences2 5Installation of general pattern strained wire fences8 6Materials for dropper pattern fences10 7Installa
9、tion of dropper pattern fences10 8Materials for general pattern wire mesh fences11 9Installation of general pattern wire mesh fences17 10Materials for spring steel and high tensile mesh fences18 11Installation of spring steel and high tensile mesh fences19 Annex A (normative) Concrete components22 A
10、nnex B (normative) Steel components23 Annex C (informative) Specifying a strained wire fence23 Annex D (normative) Method for measuring line wire tension24 Figure 1 General characteristics of strained wire fences2 Figure 2 Typical wire fittings13 Figure 3 General characteristics of wire mesh netting
11、 fences13 Figure 4 Suitable method of joining rectangular mesh17 Figure 5 Relative positions of posts and line wires at changes of direction of spring steel fence line20 Figure 6 Suitable methods of tying horizontal wires21 Figure D.1 Wire tension gauge24 Table 1 General requirements for strained wi
12、re fences3 Table 2 Dimensions of concrete fence posts and struts4 Table 3 Dimensions of steel fence posts and struts6 Table 4 Sawn timber fence posts and struts7 Table 5 Round timber fence posts and struts7 Table 6 Types, applications and dimensions of strained wire and wire mesh netting fences12 Ta
13、ble 7 Mesh sizes, wire diameters with widths of hexagonal wire netting15 Table 8 Concrete fences, posts and struts for general pattern fences17 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:22:05 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii BSI 04-2000 BS 1722-2:2000 Foreword This part
14、of BS 1722 has been prepared by Technical Committee B/201, Fences. It is a revision and combination of BS 1722-2:1989 and BS 1722-3:1986, which are withdrawn. BS 1722 is published in the following parts: Part 1: Specification for chain link fences; Part 2: Specification for strained wire and wire me
15、sh netting fences; Part 4: Specification for cleft chestnut pale fences; Part 5: Specification for close-boarded and wooden palisade fences; Part 7: Specification for wooden post and rail fences; Part 8: Specification for mild steel (low carbon steel) continuous bar fences and hurdles; Part 9: Speci
16、fication for mild steel (low carbon steel) fences with round or square verticals and flat horizontals; Part 10: Specification for anti-intruder fences in chain link and welded mesh; Part 11: Specification for woven wood and lap boarded panel fences; Part 12: Specification for steel palisade fences;
17、Part 13: Specification for chain link fences for tennis court surrounds; Part 14: Specification for open mesh steel panel fences; Part 16: Specification for organic powder coatings for use as a plastics finish to components and mesh. The various parts specify requirements for the types of fence that
18、 are considered suitable for standardization. It should be noted that no attempt has been made to standardize fences or gates of a purely decorative nature, or those to suit special requirements; nor to specify requirements for patent proprietary fencing systems. It is recommended, however, that suc
19、h fences or gates should be designed in accordance with the relevant clauses of this part of BS 1722. This standard aims to establish minimum requirements for materials and workmanship for the more common types of fence in order to ensure satisfactory service for the purchaser, and to assist manufac
20、turers and installers by eliminating unnecessary minor variations in the demands of purchasers. It specifies requirements for the components that make up a fence and the way in which the fence needs to be constructed. The standard includes requirements for sizes of components, together with the perm
21、issible tolerances on size. These are minimum requirements and it will normally be acceptable to use larger sizes, except if this could adversely affect the fitting of components or if replacement parts are required to match up with those already present. Choosing a fence is affected by factors such
22、 as intended purpose, desired service life, aesthetic considerations and availability of components. The specifier can match a suitable choice of fence to its intended purpose and also inform those installing the fence of the basic characteristics required. This standard includes requirements for pr
23、otective treatments. However, maintenance requirements of the fence after installation are outside the scope of this standard. Premature failure of the fence can be avoided by taking care not to overstrain coated wire or to damage protective treatments during installation. Ground conditions may indi
24、cate that a variation in the length of a post or strut, or the depth to which it should be set, is desirable. The posts and struts and setting depths specified in this standard are intended for use in normal ground conditions, but if special conditions exist that warrant a change in the specificatio
25、n, e.g. the ground is softer or firmer than usual, such a change should be agreed with the specifier. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:22:05 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BSI 04-2000iii BS 1722-2:2000 Annex C provides details of the fence requirements and instal
26、lation site that should be agreed between the fence supplier and purchaser. However, as conditions vary from site to site, annex C should not be assumed to be exhaustive. It has been assumed in the drafting of this part of BS 1722 that the execution of its provisions is entrusted to appropriately qu
27、alified and experienced people. Before installation commences, the lead installer should either: a) have achieved the appropriate National Vocational Qualification (NVQ) or Scottish Vocational Qualification (SVQ) in fence installation (Level 2) relevant to this part of BS 1722; or b) be currently re
28、gistered for the appropriate NVQ or SVQ in fence installation (Level 2) relevant to this part of BS 1722 provided such registration has not been in place for a period greater than 5 years from the date of registration without successful assessment having taken place. Annexes A, B and D are normative
29、. Annex C is informative. A British Standard does not purport to include all necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages Th
30、is document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 24, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:22:05 GMT+00:00
31、2006, Uncontrolled Copy, (c) BSI ivblank Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:22:05 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BSI 04-20001 BS 1722-2:2000 1) It is envisaged that BS 443 will be withdrawn and replaced by BS EN 10244-1 and BS EN 10244-2. 1 Scope This part of BS 17
32、22 specifies requirements for the construction and installation of general pattern and dropper pattern strained wire fences and rectangular wire mesh fences, including mild steel or high tensile woven wire fencing, welded mesh fencing, hexagonal wire netting fences of the general pattern, and spring
33、 steel wire pattern fences where the mesh is fixed onto spring steel line wires. NOTEFigure 1 illustrates the general characteristics of strained wire fences. It is not intended to illustrate any particular requirements of this standard but provides guidance as to the general layout of a typical fen
34、ce, and on the terminology associated with this form of fencing. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of this British Standard. For dated references, subsequent amendments to, or revision
35、s of, any of these publications do not apply. For undated references, the latest edition of the publication referred to applies. BS 4-1, Structural steel sections Part 1: Specification for hot-rolled sections. BS 12, Specification for Portland cement. BS 4431), Specification for testing zinc coating
36、s on steel wire and for quality requirements. BS 882, Specification for aggregates from natural sources for concrete. BS 1014, Specification for pigments for Portland cement and Portland cement products. BS 1202-1, Specification for nails Part 1: Steel nails. BS 1722-4, Fences Part 4: Specification
37、for cleft chestnut pale fences. BS 1722-7:1999, Fences Part 7: Specification for wooden post and rail fences. BS 1722-16, Fences Part 16: Specification for organic powder coatings to be used as a plastics finish to components and mesh. BS 1881-116, Testing concrete Part 116: Method for determination
38、 of compressive strength of concrete cubes. BS 3892 (all parts), Pulverized fuel ash. BS 4027, Specification for sulfate-resisting Portland cement. BS 4102, Specification for steel wire for general fencing purposes. BS 4320, Specification for metal washers for general engineering purposes Metric ser
39、ies. BS 4449, Specification for carbon steel bars for the reinforcement of concrete. BS 4482, Specification for cold reduced steel wire for the reinforcement of concrete. BS 4483, Steel fabric for the reinforcement of concrete. BS 4652, Specification for zinc-rich priming paint (organic media). BS 5
40、075 (all parts), Concrete admixtures. BS 5589:1989, Code of practice for preservation of timber. BS 6497, Specification for powder organic coatings for application and stoving to hot-dip galvanized hot-rolled steel sections and preformed steel sheet for windows and associated external architectural
41、purposes and for finish on galvanized steel sections and preformed steel coated with powder organic coatings. BS EN 844-9, Round and sawn timber Terminology Part 9: Terms relating to features of sawn timber. BS EN 10024, Hot-rolled taper flange 1 sections Tolerances on shape and dimensions. BS EN 10
42、025:1993, Hot-rolled products of non-alloy structural steels Technical delivery conditions. BS EN 10056-1, Specification for structural steel equal and unequal angles Part 1: Dimensions. BS EN 10210-1, Hot finished structural hollow sections of non-alloy and fine grain structural steels Part 1: Tech
43、nical delivery requirements. BS EN 10210-2, Hot finished structural hollow sections of non-alloy and fine grain structural steels Part 2: Tolerances, dimensions and sectional properties. BS EN 10223-1, Steel wire and wire products for fences Part 1: Zinc and zinc alloy coated barbed wire. BS EN 1022
44、3-2, Steel wire and wire products for fences Part 2: Hexagonal steel wire netting for agricultural, insulation and fencing purposes. BS EN 10223-5:1998, Steel wire and wire products for fences Part 5: Steel wire woven hinged joint and knotted mesh fencing. BS EN 10223-6:1998, Steel wire and wire pro
45、ducts for fences Part 6: Steel wire chain link fencing. BS EN 22063, Metallic and other inorganic coatings Thermal spraying Zinc, aluminium and their alloys. BS EN ISO 1461, Hot dip galvanized coatings on fabricated iron and steel articles Specifications and test methods. 3 Terms and definitions For
46、 the purposes of this part of BS 1722, the terms and definitions given in BS EN 844-9 apply. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:22:05 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 BSI 04-2000 BS 1722-2:2000 a) Typical line wire fence showing concrete posts b) Dropper pattern fe
47、nce Figure 1 General characteristics of strained wire fences 4 Materials for general pattern strained wire fences 4.1 General Strained wire fences shall conform to the general requirements of Table 1. NOTEThe sizes specified are minimum requirements. Larger sizes may be used, except if this could ad
48、versely affect the fitting of components or if replacement parts are required to match with those already present. 4.2 Wire NOTEWire fittings are described in 4.6. All wire shall conform to BS EN 10223 or BS 4102 and shall be one of the following: a) zinc or zinc coated alloy wire with nominal wire
49、diameter of 4.0 mm, 4.5 mm or 5.0 mm; b) zinc or zinc alloy coated high tensile wire with nominal wire diameter of 2.5 mm, 2.55 mm or 3.15 mm; c) organics coated high tensile wire with a zinc or zinc alloy coated core diameter of 3.15 mm and a 4.00 mm overall diameter. Galvanized stirrup wire shall be of low carbon steel (mild steel) and shall have a nominal wire diameter of 2.5 mm. Organics coated stirrup wire shall have a nominal core diameter of 2.5 mm and a nominal outside diamet