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1、BRITISH STANDARD BS 1722-14: 1992 Fences Part 14: Specification for open mesh steel panel fences Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:21:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1722-14:1992 This British Standard, having been prepared under the direction of the Road Engi
2、neering Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 31 March 1992 BSI 07-1999 The following BSI references relate to the work on this standard: Committee reference RDB/34 Draft for comment 88/13495 DC ISBN 0 580 19493 0 Committees res
3、ponsible for this British Standard The preparation of this British Standard was entrusted by the Road Engineering Standards Policy Committee (RDB/-) to Technical Committee RDB/34, upon which the following bodies were represented: Aluminium Federation British Independent Steel Producers Association B
4、ritish Precast Concrete Federation Ltd. British Steel Industry British Timber Merchants Association Country Landowners Association County Surveyors Society Department of Agriculture and Fisheries for Scotland Department of the Environment (Building Research Establishment) Department of the Environme
5、nt (Property Services Agency) Department of Transport Electricity Supply Industry in United Kingdom Fencing Contractors Association Forestry Commission Institute of Clerks of Works of Great Britain Inc. Landscape Institute Ministry of Agriculture, Fisheries and Food National Council of Building Mate
6、rial Producers National Farmers Union Royal Institution of Chartered Surveyors Society of Chain Link Fencing Manufacturers Timber Growers United Kingdom Timber Research and Development Association Wire Products Association The following bodies were also represented in the drafting of the standard, t
7、hrough subcommittees and panels: British Gas plc British Wire Netting Association Cold Rolled Sections Association Consumer Policy Committee of BSI Fencing Industry Association Institute of Leisure and Amenity Management Timber Trade Federation Amendments issued since publication Amd. No.DateComment
8、s Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:21:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1722-14:1992 BSI 07-1999i Contents Page Committees responsible Inside front cover Foreword ii Section 1. General 1.1Scope1 1.2Dimensions and general characteristics1 Section 2. Materials 2
9、.1Infill4 2.2Steel posts4 2.3Fittings4 2.4Other materials4 Section 3. Design 3.1Loading5 3.2Test methods5 3.3Test requirements5 3.4Toppings5 3.5Security against burrowing5 Section 4. Foundations and sills 4.1General6 4.2Holes for post foundations6 4.3Concrete sills6 4.4Concrete for post foundations
10、and sills6 Section 5. Gates 5.1Construction7 5.2Additional items7 5.3Erection7 Section 6. Erection 6.1Level and line8 6.2Posts8 6.3Infill panels8 6.4Cranked tops and extension arms8 6.5Bolts8 Appendix A Specifying a panel fence9 Appendix B Steel components and protective treatment9 Appendix C Calcul
11、ation of wind forces10 Appendix D Test methods10 Appendix E Ground sloping conditions12 Figure 1 Method 1. Test rig: horizontal testing of fence system11 Figure 2 Method 2. Test rig: vertical testing of fence system13 Figure 3 Method 1. Up to 2014 Figure 4 Method 2. Over 2014 Figure 5 Method 3. Appr
12、oximately 4515 Figure 6 Alternatives to figures 3, 4 and 516 Table 1 Basic characteristics of suitable expanded metal for panel fences2 Table 2 Basic characteristics of suitable welded mesh for panel fences3 Table 3 Post foundations for general purpose fences8 Table 4 Drag coefficients of fences (CD
13、)10 Publication(s) referred to Inside back cover Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:21:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1722-14:1992 ii BSI 07-1999 Foreword This Part of BS 1722 has been prepared under the direction of the Road Engineering Standards Policy Comm
14、ittee. It is a new standard that takes into account the growing current practice of the use of established materials as fencing in panel form. BS 1772 is published in separate Parts as follows: Part 1: Specification for chain link fences; Part 2: Specification for rectangular wire mesh and hexagonal
15、 wire netting fences; Part 3: Specification for strained wire fences; Part 4: Specification for cleft chestnut pale fences; Part 5: Specification for closeboarded fences; Part 6: Specification for wooden palisade fences; Part 7: Specification for wooden post and rail fences; Part 8: Specification fo
16、r mild steel (low carbon steel) continuous bar fences; Part 9: Specification 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 boar
17、ded panel fences; Part 12: Specification for steel palisade fences; 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
18、1). The various Parts specify requirements for the types of fence that 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 to suit special requirements, or to specify requirements for “patent”
19、proprietory fencing systems. It is recommended that the structure of such fences or gates should comply with those clauses of this Part of BS 1722 that are applicable. It has been assumed in the drafting of this British Standard that the execution of its provisions is entrusted to appropriately qual
20、ified and experienced people. The purpose of this standard is to establish minimum performance requirements for materials and workmanship. It specifies requirements for open mesh steel panel fences of four types: a) a fence for boundary or general purposes up to 2 400 mm in height; b) a fence for se
21、curity purposes of minimum 2 400 mm in height; c) a fence for high security use of minimum 3 000 mm in height; d) a fence for maximum security of minimum 3 000 mm in height. The general purpose fence is intended for use as a boundary marker or for those locations where it is deemed necessary merely
22、to deter the casual intruder or trespasser. The security fence is designed for use in areas where greater protection is required from vandalism or trespass, and can be considered suitable for use for general industrial security such as for industrial estates, airfields and oil installations. 1) In p
23、reparation. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:21:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1722-14:1992 BSI 07-1999iii The high security fence is designed for areas where protection against determined intrusion is required. However, it should be appreciated that it is
24、not possible to erect a fence that cannot be negotiated by a determined intruder given adequate time, freedom from observation and suitable climbing aids or tools for forcing an entry. The maximum security fence does not permit finger holds and therefore cannot be scaled without climbing aids. The c
25、hoice of a fence is affected by factors such as the intended purpose of the fence, the desired service life2), aesthetic considerations and the availability of components. The specifier of the fence will know its intended purpose and by reference to Table 1 and Table 2, a suitable choice can be made
26、. This then gives those erecting the fence the basic characteristics that need to be provided. This standard includes requirements for steel components to be galvanized. However an important aspect of providing an extended service life is the maintenance of the fence after its erection which is outs
27、ide the scope of the standard. Premature failure can be avoided by taking care not to damage protective treatments during installation. Ground conditions may indicate that a variation in the length of a post or strut, or of the depth to which it should be set, is desirable. The posts and struts and
28、setting depths specified in this standard are intended for use in normal ground but if special conditions exist that warrant a change in the specification, e.g. ground that is softer or firmer than usual, such a change needs to be agreed with the specifier, as for other variations. To assist those s
29、pecifying and/or providing a fence, Appendix A provides guidance on the more important details that often take the form of selected options which need to be specified at the time of ordering a fence. A British Standard does not purport to include all the necessary provisions of a contract. Users of
30、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 This document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 16, an inside back cover and a back
31、cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. 2) The service life/durability is dependent on environmental conditions and may vary considerably. For this reason, service li
32、fe/durability is not included in this standard. For information relating to finishes and durability refer to the manufacturer. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:21:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08
33、:21:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1722-14:1992 BSI 07-19991 Section 1. General 1.1 Scope This Part of BS 1722 specifies basic requirements for open mesh steel panel fences in four categories. a) Category 1: general purpose fences up to 2 400 mm high; b) Category 2: security fences
34、 at least 2 400 mm high; c) Category 3: high security fences at least 3 000 mm high; d) Category 4: maximum security fences at least 3 000 mm high. Requirements for the performance of panel fences for this standard are based upon loadings described in section 3. Maintenance of the fence after erecti
35、on is outside the scope of the standard. NOTEThe titles of the publications referred to in this standard are listed on the inside back cover. 1.2 Dimensions and general characteristics Panel fences shall be constructed to the requirements of Table 1 and Table 2 and shall comply with section 3. NOTED
36、etails of the general design are referred to in Appendix A. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:21:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1722-14:1992 2 BSI 07-1999 Table 1 Basic characteristics of suitable expanded metal for panel fences CategoryHeight of fenceTypica
37、l applicationsTypical expanded metal specifications BS 405 reference Long way of mesh (LW) Short way of mesh (SW) StrandMassSolidity ThicknessWidth 1 mm As specifiedGeneral purpose boundary fencingSpecial mm 76 Vertical mm 64 mm 2.00 mm 2.00 kg 0.96 % 12 General purpose boundary fencingEX41100 Verti
38、cal 502.502.692.0811 2Minimum 2 400 Security. Anti intruderSpecial76 Vertical 643.003.002.2114 Security. Anti intruderEX42100 Vertical 503.003.533.10616 3Minimum 3 000 High securityEX44100 Vertical 503.005.033.6620 High securityEX3776 Vertical 343.003.584.9624 High securityEX3250 Vertical 233.003.12
39、6.5231 4Minimum 3 000 Maximum securitySpeciala10 Aperture vertical 70 Aperture 3.005.50 Main strand 9.0038 NOTE“Special” refers to meshes designed by manufacturers in accordance with BS 405 but they do not have a specific reference number. a Category 4. Aperture finger grip proof. Probe “no go” 11 m
40、m diameter. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:21:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1722-14:1992 BSI 07-19993 Table 2 Basic characteristics of suitable welded mesh for panel fences CategoryHeight of fenceTypical applications Typical welded mesh specifications Ve
41、rtical mesh spacing Horizontal mesh spacing Vertical wire diameter Horizontal wire diameter Solidity mmmmmmmmmm% 1Maximum 2 400General purpose boundary fence 200 50 75 50 and 12.5 50 50 25 50 and 12.5 5 3 3 3 7 3 3 3 14 12 16 2Minimum 2 400Security75 50 25 50 3 3 3 3 16 12 3Minimum 3 000High securit
42、y 50 75 25 25 50 12.5 75 75 4 3 4 3 4 3 4 3 16 21 16 16 4Minimum 3 000aMaximum security 75 75 12.5 12.5 12.5 12.5 4 3 4 4 3 4 36 21 58 a Category 4. Aperture finger grip proof. Probe “no go” 11 mm diameter. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:21:22 GMT+00:00 2006, Uncontrolled
43、Copy, (c) BSI BS 1722-14:1992 4 BSI 07-1999 Section 2. Materials 2.1 Infill Typical infill meshes shall be as given in Table 1 and Table 2. NOTESpecifications for expanded metal and welded mesh are contained in BS 405 and BS 4102. 2.2 Steel posts NOTE 1See 2.3 for steel fittings. Steel posts shall c
44、omply with section 3 and with the materials and protective treatment detailed in Appendix B. NOTE 2Tolerances of + 50 mm and 25 mm are permissible on the specified lengths of steel posts when determining the actual lengths. 2.3 Fittings Panel to post connections shall be of sufficient strength to tr
45、ansfer the specified panel load to the posts. NOTERefer to section 3. Protective treatment shall be carried out in accordance with Appendix B. 2.4 Other materials Posts can be manufactured from materials other than steel but they shall be capable of withstanding the loading conditions stated in sect
46、ion 3. NOTEFor comment on service life/durability see the foreword. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:21:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1722-14:1992 BSI 07-19995 Section 3. Design 3.1 Loading 3.1.1 Wind loading The wind loading for a particular fence system
47、shall be established in accordance with Appendix C. NOTE 1The design requirements of this standard are based upon a dynamic wind loading (q) (see CP3:Chapter V-2) at right angles to the plane of the fence of 900 N/m2. NOTE 2The wind loading is dependent upon the dynamic pressure, solidity and drag c
48、oefficient. NOTE 3In situations of extreme exposure or abnormal loading it will be necessary to carry out a special appraisal and for the design criteria to be specified. 3.1.2 Personnel loading The fencing components shall be capable of resisting a load of 700 N every metre at a height of 1.25 m ab
49、ove ground level. 3.1.3 General purpose: category 1 NOTELoad testing is not required. The steel mesh infill shall have strand thickness of not less than 2 mm. The steel post sections shall have a section moment of inertia of not less than 5.4 cm4 for fences up to 1 800 mm high and 12.5 cm4 for fences over 1 800 mm high. Posts manufactured from material other than steel shall be of equivalent strength. 3.1.4 Security: category 2 The fencing system shall, when tested in accordance with Appendix D, carry the load
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