BS EN 29519-1991 Shipbuilding and marine structures - Rungs for dog-step ladders《造船和海上建筑物 踏步阶梯级》.pdf

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1、BRITISH STANDARD BS EN29519: 1994 ISO9519:1990 Incorporating Amendment No.1 Shipbuilding and marine structures Rungs for dog-step ladders The European Standard EN29519:1993 has the status of a British Standard UDC 629.12.046BSEN29519:1994 This British Standard, having been prepared under the directi

2、onof the General Mechanical Engineering Standards Policy Committee, waspublished under the authorityof the Standards Boardand comes intoeffecton 30August1991 BSI 11-1999 The following BSI references relate to the work on this standard: Committee reference GME/32 Draft for comment 89/74088DC ISBN 0 5

3、80 19911 8 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the General Mechanical Engineering Standards Policy Committee (GME/-) to Technical Committee GME/32, upon which the following bodies were represented: British Marine Equipment Counci

4、l British Maritime Technology British Motor Ship Owners Association British Waterways Board Department of Transport (Marine Directorate) General Council of British Shipping Lloyds Register of Shipping Ministry of Defence North East Coast Institution of Engineers and Shipbuilders Shipbuilders and Shi

5、prepairers Association Amendments issued since publication Amd. No. Date Comments 8251 July 1994 Indicated by a sideline in the marginBSEN29519:1994 BSI 11-1999 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 1 Scope 3 2 Normative references 3 3 Types 3 4 Ma

6、terial 3 5 Manufacture 3 6 Dimensions 3 7 Mass 4 8 Installation 4 9 Designation 4 Figure 1 Rung type A 4 Figure 2 Rung type B 4 Figure 3 Installation details 5 Publication(s) referred to Inside back coverBSEN29519:1994 ii BSI 11-1999 National foreword This British Standard has been prepared under th

7、e direction of the General Mechanical Engineering Standards Policy Committee. It is identical with ISO9519:1990 “Shipbuilding and marine structures Rungs for dog-step ladders”, published by the International Organization for Standardization (ISO). In1993 the European Committee for Standardization (C

8、EN) accepted ISO9519:1990 as European Standard EN29519:1993. As a consequence of implementing the European Standard this British Standard is renumbered as BSEN29519 and any reference to BS7468 should be read as a reference to BSEN29519. Cross-references. The Technical Committee has reviewed the prov

9、isions of ISO630:1980, ISO1035-2:1980 and ISO2768-1:1989 to which reference is made in the text, and has decided that they are acceptable for use in conjunction with this standard. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards a

10、re 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, pagesi andii, theENtitle page, pages2 to6, an inside back cover and a back cover.

11、 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.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 29519 June1993 UDC 629.12.046 Descriptors: Shipbuilding, ladders, steps (stairs)

12、, specifications, dimensions, designation English version Shipbuilding and marine structures Rungs for dog-step ladders (ISO 9519:1990) Construction navale et structures maritimes Echelons pour marchepieds (ISO 9519:1990) Schiffbau und Meerestechnik Wand- und Mastsprossen (ISO9519:1990) This Europea

13、n Standard was approved by CEN on1993-06-21. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning

14、 such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own langu

15、age and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and U

16、nitedKingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1993 Copyright reserved to CEN members Ref.No.EN29519:1993EEN29519:1993 BSI 11-1999 2 Foreword In1992, the International Sta

17、ndard ISO9519:1990 Shipbuilding and marine structures Rungs for dog-step ladders was submitted to the CEN Primary Questionnaire procedure. Following the positive result of the CEN/CS Proposal, ISO9519:1990 was submitted to the Formal Vote. The result of the Formal Vote was positive. This European St

18、andard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December1993, and conflicting national standards shall be withdrawn at the latest by December1993. According to the CEN/CENELEC Internal Regulations, the following

19、countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom.EN29519:1993 BSI 11-1999 3 1 Scope This International Standard specif

20、ies the types, dimensions, material, manufacture and designation of rungs for dog-step ladders; it also lays down the installation and composition of single rungs forming a dog-step ladder. Dog-step ladders, formed from single rungs, may only be used where fixed vertical ladders with stringers 1)can

21、not be installed. Dog-step ladders fitted to the ships structure should serve only to bridge minor differences in height. Dog-step ladders as specified in this International Standard may also be fitted to marine structures other than ships to serve equivalent purposes. NOTE 1Users of this Internatio

22、nal Standard should note that they should ensure compliance with such statutory requirements, rules and regulations as may be applicable to the individual ship or marine structure concerned. 2 Normative references The following standards contain provisions which, through reference in this text, cons

23、titute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of

24、 the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO630:1980, Structural steels. ISO1035-2:1980, Hot-rolled steel bars Part2:Dimensions of square bars. ISO2768-1:1989, General tolerances Part1:Tolerances for linear and angular dime

25、nsions without individual tolerance indications. 3 Types Rungs for dog-step ladders are divided into the following two types: Type A for ships structure; Type B for ships masts. 4 Material 4.1 Semi-finished product The rungs shall be formed from steel square bars meeting the specification of ISO1035

26、-2. 4.2 Steel quality The bars shall be made of steel meeting the specification of ISO630, grade Fe360, as the minimum quality. NOTE 2Alternatively, ship quality steel may be used provided that it has equivalent mechanical and welding properties. 5 Manufacture 5.1 Defects Rungs shall be free from de

27、fects likely to cause injury to persons using the dog-step ladder. 5.2 Surface finish Standard finish of rungs shall be raw and without preservation. By special agreement only, rungs may be sandblasted and preserved. 6 Dimensions The dimensions of rungs shall be in accordance with Figure 1 and Figur

28、e 2 as appropriate. 6.1 Dimensions for type A Type A rungs shall meet the requirements shown in Figure 1. Where type A rungs are to be installed against insulated walls, the leg-length of the rungs shall be lengthened, preferably to300mm. At the same time the clearance between the rung and the insul

29、ation surface indicated in Figure 3 shall be maintained. If such a type of rung is needed, it shall be given as an element of the designation. 6.2 Dimensions for type B Type B rungs shall meet the requirements shown in Figure 2. 6.3 Tolerances Tolerances for dimensions in Figure 1, Figure 2 and Figu

30、re 3 shall correspond to accuracy grade v (verycoarse) given in ISO2768-1. 1) For example, as specified in ISO3797:1976, Shipbuilding Vertical steel ladders.EN29519:1993 4 BSI 11-1999 7 Mass The mass of a rung shall be as follows: type A: . 2,2kg; type B: . 0,72kg. 8 Installation 8.1 Rungs shall be

31、installed in accordance with Figure 3. The bottom rung shall be as near as possible to300mm above the lower access level. 8.2 Rungs shall be welded to the ships structure or to the ships mast in such a way as to support a load of1000N with a safety factor of1:5. This can be achieved with one all-rou

32、nd fillet weld of4mm minimum at the weld-on ends of the rungs. 9 Designation For reference and ordering purposes, rungs and ladders formed from rungs according to this International Standard shall be designated as given in9.1 and9.2. 9.1 Elements for designation The following elements shall be indic

33、ated, in the order given: a) denomination: rung (for a single rung) or ladder (for composition of rungs); b) number of this International Standard; ISO9519; c) type, code letter: A or B (seeclause3); d) leg length (for insulated walls only):300mm or more, as appropriate; e) number of rungs forming a

34、 ladder (for ladder designation, only). 9.2 Examples of designation 9.2.1 Example for single rung A rung according to this International Standard, of typeA, is designated as follows: Rung ISO9519 A 9.2.2 Example for ladder A ladder according to this International Standard, formed from rungs of typeB

35、, number of rungs6, is designated as follows: LadderISO9519 B6 Figure 1 Rung type A Figure 2 Rung type BEN29519:1993 BSI 11-1999 5 Tolerances: see6.3. a) Ladder for ships structure (formed from rungs type A) b) Ladder for ships masts (formed from rungs type B) Figure 3 Installation details6 blankBSE

36、N29519:1994 BSI 11-1999 Publication(s) referred to See national foreword.BS EN29519: 1994 ISO9519:1990 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Euro

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