ISO 13795:2012

Ships and marine technology — Ship's mooring and towing fittings — Welded steel bollards for sea-going vessels

This 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.

Navires et technologie maritime — Corps-morts et ferrures de remorquage de navires — Bittes d'amarrage en acier soudées pour navires de haute mer

General Information

• Status: Withdrawn
• Publication Date: 24-Jun-2012
• Withdrawal Date: 24-Jun-2012
• ICS: 47.020.50 - Deck equipment and installations
• ICS: 47.040 - Seagoing vessels
• Technical Committee: ISO/TC 8/SC 4 - Outfitting and deck machinery
• Drafting Committee: ISO/TC 8/SC 4 - Outfitting and deck machinery
• Current Stage: 9599 - Withdrawal of International Standard
• Completion Date: 28-Aug-2020

Relations

• Revised: ISO 13795:2020 - Ships and marine technology — Ship's mooring and towing fittings — Welded steel bollards for sea-going vessels
• Effective Date: 30-Sep-2017

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 13795
First edition
2012-07-01
Ships and marine technology — Ship’s
mooring and towing fittings — Welded
steel bollards for sea-going vessels
Navires et technologie maritime — Corps-morts et ferrures de
remorquage de navires — Bittes d’amarrage en acier soudées pour
navires de haute mer
Reference number
ISO 13795:2012(E)
©
ISO 2012

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ISO 13795:2012(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2012
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
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ii © ISO 2012 – All rights reserved

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ISO 13795:2012(E)
Contents Page
Foreword .iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classification . 1
4.1 Type . 1
4.2 Nominal sizes . 1
5 Dimensions . 1
6 Materials . 2
7 Construction . 2
8 Manufacturing and inspection . 2
9 Marking . 2
Annex A (informative) Basis for strength assessment of welded steel bollards . 9
Bibliography .12
© ISO 2012 – All rights reserved iii

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ISO 13795:2012(E)
Foreword
ISO (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 through 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 collaborates 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 Standards. 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 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.
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ISO 13795:2012(E)
Introduction
A bollard is a type of ship’s mooring and towing fitting installed on board to belay the mooring and towing rope.
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INTERNATIONAL STANDARD ISO 13795:2012(E)
Ships and marine technology — Ship’s mooring and towing
fittings — Welded steel bollards for sea-going vessels
1 Scope
This 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 references
The following referenced documents are indispensable 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 equipment
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
safe working load
SWL
maximum load in kN on the rope that should normally be applied in service conditions
3.2
TOW
maximum load on the rope applied to a bollard subjected to tug boat pull by using an eye splice at the end of
the towing rope to connect to the bollard
4 Classification
4.1 Type
Depending 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 sizes
The nominal sizes, D , of bollards are denoted by reference to the outside diameter of the post, in millimetres,
n
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, 250A, 250B, 300A, 300B, 350A, 350B, 400A, 400B, 450A, 450B, 500A,
500B, 550A, 550B and 600.
5 Dimensions
Bollards have dimensions and particulars in accordance with Tables 1 and 2, and Figures 1 and 2.
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ISO 13795:2012(E)
6 Materials
The materials of the following components shall be used for manufacturing the bollards:
2
— Plates: weldable steel plates having a yield point of not less than 235 N/mm .
2
— Post tubes: weldable steel plates having a yield point of not less than 235 N/mm or equivalent steel tubes.
7 Construction
7.1 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 be provided.
8 Manufacturing and inspection
8.1 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 The 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 Marking
9.1 The safe working load (SWL) intended for the use of the bollards shall 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 be 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 for mooring and towing, the marking shall be provided as below:
Both SWLs for mooring and towing purposes shall be marked.
EXAMPLE 1 SWL XXX t
EXAMPLE 2 TOW XXX t
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ISO 13795:2012(E)
Dimensions in millimetres
Key
a
Edges smooth grinding.
b
SWL marking.
Figure 1 — Type A (for n
...