1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 13795:2012Ships and marine technology Ships mooring and towingfittings Welded steelbollards for sea-going vesselsBS ISO 13795:2012 BRITISH STANDARDNational forewordThis Br
2、itish Standard is the UK implementation of ISO 13795:2012.The UK participation in its preparation was entrusted to TechnicalCommittee SME/32/-/4, Ships and marine technology - Outfitting anddeck machinery.A list of organizations represented on this committee can beobtained on request to its secretar
3、y.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 69754 8ICS 47.020.50Compliance with a British Standard cannot confe
4、r immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 November 2012.Amendments issued since publicationDate Text affectedBS ISO 13795:2012 ISO 2012Ships and marine technology Ships mooring and towing fittings Weld
5、ed steel bollards for sea-going vesselsNavires et technologie maritime Corps-morts et ferrures de remorquage de navires Bittes damarrage en acier soudes pour navires de haute merINTERNATIONAL STANDARDISO13795First edition2012-07-01Reference numberISO 13795:2012(E)BS ISO 13795:2012ISO 13795:2012(E)ii
6、 ISO 2012 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2012All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
7、 either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 13795:2012ISO 13795:2012(E) ISO 2012 All rights re
8、served iiiContents PageForeword ivIntroduction v1 Scope 12 Normative references . 13 Terms and definitions . 14 Classification 14.1 Type . 14.2 Nominal sizes . 15 Dimensions . 16 Materials . 27 Construction . 28 Manufacturing and inspection . 29 Marking . 2Annex A (informative) Basis for strength as
9、sessment of welded steel bollards 9Bibliography .12BS ISO 13795:2012ISO 13795:2012(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out thro
10、ugh ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collabor
11、ates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical committees is to prepare International Standard
12、s. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.Attention is drawn to the possibility that some of the elements of this
13、 document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 13795 was prepared by Technical Committee ISO/TC 8, Ships and marine technology, Subcommittee SC 4, Outfitting and deck machinery.iv ISO 2012 All rights reservedBS ISO 1
14、3795:2012ISO 13795:2012(E)IntroductionA bollard is a type of ships mooring and towing fitting installed on board to belay the mooring and towing rope. ISO 2012 All rights reserved vBS ISO 13795:2012BS ISO 13795:2012Ships and marine technology Ships mooring and towing fittings Welded steel bollards f
15、or sea-going vessels1 ScopeThis International Standard specifies the design, size and technical requirements for welded steel bollards suitable for installation on sea-going vessels to meet normal mooring and towing requirements.2 Normative referencesThe following referenced documents are indispensa
16、ble for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.IMO Circular MSC/Circ.1175, Guidance on shipboard towing and mooring equipment3 Terms and definitio
17、nsFor the purposes of this document, the following terms and definitions apply.3.1safe working loadSWLmaximum load in kN on the rope that should normally be applied in service conditions3.2TOWmaximum load on the rope applied to a bollard subjected to tug boat pull by using an eye splice at the end o
18、f the towing rope to connect to the bollard4 Classification4.1 TypeDepending on the construction, welded steel bollards shall be classified as the following two types: Type A with compact base plate; Type B with wide base plate.4.2 Nominal sizesThe nominal sizes, Dn, of bollards are denoted by refer
19、ence to the outside diameter of the post, in millimetres, in terms of the nearest number drawn from a basic series of preferred numbers. For the bollards having the same post diameter, the nominal size is followed by an alphabetical character for the different SWL.The nominal sizes are: 150, 200, 25
20、0A, 250B, 300A, 300B, 350A, 350B, 400A, 400B, 450A, 450B, 500A, 500B, 550A, 550B and 600.5 DimensionsBollards have dimensions and particulars in accordance with Tables 1 and 2, and Figures 1 and 2.INTERNATIONAL STANDARD ISO 13795:2012(E) ISO 2012 All rights reserved 1BS ISO 13795:2012ISO 13795:2012(
21、E)6 MaterialsThe materials of the following components shall be used for manufacturing the bollards: Plates: weldable steel plates having a yield point of not less than 235 N/mm2. Post tubes: weldable steel plates having a yield point of not less than 235 N/mm2or equivalent steel tubes.7 Constructio
22、n7.1 The posts of the bollards shall be constructed from steel tubes or formed from plate.7.2 The fins shall be installed to keep the ropes as low as possible so as to reduce the loads to the bollard posts from the mooring/towing ropes.7.3 The eye plate for tying the stopping-off rope or chain shall
23、 be provided.8 Manufacturing and inspection8.1 All surfaces of the bollards including welding shall be free from any visible flaws or imperfections.8.2 All surfaces in contact with the ropes shall be free from surface roughness or irregularities likely to cause damage to the ropes by abrasion.8.3 Th
24、e bollards shall be coated externally with an anti-corrosion protective finish.8.4 A low-friction surface coating is not recommended so as to increase the holding force of the mooring ropes under figure-of-eight belay.9 Marking9.1 The safe working load (SWL) intended for the use of the bollards shal
25、l be noted in the towing and mooring plan available on board for the guidance of the shipmaster as specified in MSC/Circ.1175.9.2 The actual SWL on board shall be determined by considering the under deck reinforcement, and it shall be marked on the towing and mooring plan. The actual SWL shall not b
26、e over the SWL indicated in this International Standard.9.3 The bollards shall be clearly marked with their SWL by weld bead or equivalent. The SWL shall be expressed in tonnes (letter t) and be placed so that it is not obscured during operation of the fitting.9.4 In case the bollard is used both fo
27、r mooring and towing, the marking shall be provided as below:Both SWLs for mooring and towing purposes shall be marked.EXAMPLE 1 SWL XXX tEXAMPLE 2 TOW XXX t2 ISO 2012 All rights reservedBS ISO 13795:2012ISO 13795:2012(E)Dimensions in millimetresKeyaEdges smooth grinding.bSWL marking.Figure 1 Type A
28、 (for nominal sizes 150, 200, 250A and 250B) ISO 2012 All rights reserved 3BS ISO 13795:2012ISO 13795:2012(E)Table 1 Dimensions and SWL for Type A bollardsDimensions in millimetresNominal sizeDnD1D2D3D4H1H2H3H4b L E t t1t2R150 165,2 185 - 80 330 90 70 60 155 400 - 8,0 6 6 40200 216,3 240 - 130 395 1
29、15 70 60 205 500 - 8,0 6 6 50250A 267,4 290 - 160 505 135 90 75 250 630 - 12,0 9 8 60250B 267,4 290 - 160 505 135 90 75 250 630 - 10,0 8 7 60300A 318,5 340 150 185 600 150 110 85 290 800 300 21,5 16 9 70300B 318,5 340 150 185 600 150 110 85 290 800 300 12,0 9 9 70350A 355,6 380 170 200 685 175 130 1
30、05 340 890 350 26,0 19 11 80350B 355,6 380 170 220 685 175 130 105 340 890 350 14,0 10 9 80400A 406,4 430 190 230 730 185 145 115 380 1 000 380 28,0 20 13 85400B 406,4 430 190 250 730 185 145 115 380 1 000 380 15,0 11 11 85450A 457,2 480 210 265 770 195 160 120 425 1 100 410 29,0 21 14 90450B 457,2
31、480 210 285 770 195 160 120 425 1 100 410 14,5 11 11 90500A 508,0 530 235 295 830 230 200 150 480 1 250 460 32,0 23 16 100500B 508,0 530 235 320 830 230 200 150 480 1 250 460 14,5 11 11 100550A 558,8 580 255 330 900 270 200 180 520 1 380 540 31,0 22 16 110550B 558,8 580 255 350 900 270 200 180 520 1
32、 380 540 21,0 16 11 110600 609,4 630 280 365 950 300 200 200 560 1 550 600 33,0 23 16 1204 ISO 2012 All rights reservedBS ISO 13795:2012ISO 13795:2012(E)Table 1 (continued)Dimensions in millimetresNominal sizeDnWelding leg lengthaSWLbCalculated weightc(kg)For mooring purposes (Figure-of-eight belay)
33、For towing purposes (Eye splice)z1z2One-rope use Two-rope use(kN) (t) (kN) (t) (kN) (t)150 3,5 3,5 54 5,5 49 5,0 383 10 29200 3,5 3,5 82 8,4 65 6,7 579 13 46250A 5,5 4 156 16 134 14 1 315 27 107250B 5,5 4 127 13 108 11 215 22 91300A 10,5 4 332 34 306 31 3 365 62 281300B 10,5 4 186 19 161 16 352 36 1
34、66350A 12,5 5 443 45 418 43 5 062 85 431350B 7 4 244 25 216 22 2 855 50 241400A 12,5 6 594 61 521 53 6 632 106 570400B 8 5 326 33 269 27 3 816 67 322450A 12 7 753 77 612 62 8 201 124 712450B 8 7 382 39 292 30 4 483 78 379500A 12,5 8 992 101 757 77 10 928 154 960500B 8 5 457 47 326 33 5 474 93 465550
35、A 11,5 8 1 131 115 812 83 12 635 165 1 123550B 11,5 5 781 80 541 55 9 280 159 787600 11,5 8 1 401 143 948 97 15 539 193 1 391aWelding with chamfering is available based on the same welding volume/strength.bThe SWL is the maximum applicable rope tension.The SWLs shown in this table are for reference
36、only. These are based on the loadings as mentioned in Annex A.cThe calculated weight is for reference only. ISO 2012 All rights reserved 5BS ISO 13795:2012ISO 13795:2012(E)Dimensions in millimetresKeyaEdges smooth grinding.bSWL marking.Figure 2 Type B6 ISO 2012 All rights reservedBS ISO 13795:2012IS
37、O 13795:2012(E)Table 2 Dimensions and SWL of Type B bollardsDimensions in millimetresNominal sizeDnD1D2H1H2h1h2b L L1E t t1t2R150 165,2 185 320 80 62 70 225 400 670 145 8,0 8 6 40200 216,3 240 365 85 67 70 290 500 860 160 8,0 8 6 50250A 267,4 290 470 100 79 90 360 630 1 065 215 12,0 11 8 60250B 267,
38、4 290 470 100 79 90 360 630 1 065 215 10,0 8 7 60300A 318,5 340 575 125 95 110 430 800 1 300 325 21,5 20 9 70300B 318,5 340 575 125 95 110 430 800 1 300 325 12,0 9 9 70350A 355,6 380 655 145 108 130 480 890 1 475 360 26,0 23.5 11 80350B 355,6 380 655 145 119 130 480 890 1 475 360 14,0 13 9 80400A 40
39、6,4 430 705 160 121 145 550 1 000 1 630 400 28,0 26 13 85400B 406,4 430 705 160 133 145 550 1 000 1 630 400 15,0 13,5 11 85450A 457,2 480 745 170 131 160 620 1 100 1 810 430 29,0 26 14 90450B 457,2 480 745 170 144 160 620 1 100 1 810 430 14,5 13 11 90500A 508,0 530 790 190 146 200 690 1 250 2 040 50
40、0 32,0 29 16 100500B 508,0 530 790 190 162 200 690 1 250 2 040 500 14,5 13 11 100550A 558,8 580 840 210 167 200 750 1 380 2 240 560 31,0 28 16 110550B 558,8 580 840 210 176 200 750 1 380 2 240 560 21,0 19 11 110600 609,4 630 875 225 182 200 820 1 550 2 490 660 33,0 28 16 120Nominal sizeDnWelding leg
41、 lengthaSWLbCalculated weightc(kg)For mooring purposes (Figure-of-eight belay)For towing purposes(Eye splice)z1z2z3z4One-rope use Two- rope use(kN) (t) (kN) (t) (kN) (t)150 3 3 6 4 54 5,5 49 5,0 540 10 45200 3 3 6 4 82 8,4 65 6,7 795 13 68250A 4 4,5 8 6 156 16 134 14 1 736 27 150250B 3 3,5 6 4 127 1
42、3 108 11 216 22 119300A 4 8 12 10 332 34 306 31 4 365 62 383300B 4 5 8 6 186 19 161 16 353 36 203350A 5 10 14 12 443 45 418 43 6 543 85 582350B 4 5,5 8 6 244 25 216 22 3 757 50 333400A 6 11 16 13 594 61 521 53 8 819 106 793400B 5 5,5 8 7 326 33 269 27 4 983 67 441450A 7 11 16 13 753 77 612 62 10 820
43、 124 979450B 7 5,5 8 7 382 39 292 30 5 837 78 517500A 8 12 17 15 992 101 757 77 14 470 154 1 321500B 5 5,5 8 7 457 47 326 33 7 102 93 631550A 8 11 17 14 1 131 115 812 83 16 628 165 1 530aWelding with chamfering is available based on the same welding volume/strength.bThe SWL is the maximum applicable
44、 rope tension.The SWLs shown in this table are for reference only. These are based on the loadings as mentioned in Annex A.cThe calculated weight is for reference only. ISO 2012 All rights reserved 7BS ISO 13795:2012ISO 13795:2012(E)Nominal sizeDnD1D2H1H2h1h2b L L1E t t1t2R550B 5 8 12 10 781 80 541
45、55 11 949 159 1 059600 8 11 17 14 1 401 143 948 97 20 042 193 1 850aWelding with chamfering is available based on the same welding volume/strength.bThe SWL is the maximum applicable rope tension.The SWLs shown in this table are for reference only. These are based on the loadings as mentioned in Anne
46、x A.cThe calculated weight is for reference only.Table 2 (continued)8 ISO 2012 All rights reservedBS ISO 13795:2012ISO 13795:2012(E)Annex A (informative) Basis for strength assessment of welded steel bollardsA.1 GeneralThe strength of the bollards was evaluated by finite element model analysis and s
47、imple beam theory calculation, and determined based on the following design criteria.A.2 LoadingA.2.1 The bollards are to be designed to withstand the loads imposed by the mooring and/or towing ropes.When using two ropes on a bollard, the maximum applicable load on each rope is to be limited as desc
48、ribed under the SWL column “Two-rope use” in Tables 1 and 2. The ropes are to be belayed as low as possible to reduce the bending stress on the posts.NOTE In normal mooring practice, only one mooring rope is fitted per bollard.A.2.2 The load P imposed by a rope belayed in figure-of-eight fashion aro
49、und the bollard produces a resultant load of 2P.A.2.3 When two ropes are used, it is possible to impose 4P as a shear load at the lowest part of the post.A.2.4 The bollards are to be designed to withstand the following load cases.A.2.4.1 Case 1 Bending loads by mooring ropeIt is to be designed to withstand the bending force produced by P imposed at position H 4/5 above the base plate.KeyP mooring forcePareaction force produced by PaShip side.Figure A.1 Bending loads by mooring rope ISO 2012 All righ
