ISO 5485:1986
(Main)Shipbuilding - Inland vessels - Fixed steel deck stairs
Shipbuilding - Inland vessels - Fixed steel deck stairs
Specifies the technical requirements and main dimensions. Is not applicable to indoor stairs, outboard stairs, emergency and special purpose stairs.
Construction navale — Bateaux de navigation intérieure — Échelles métalliques de pont stationnaires
General Information
Relations
Overview
ISO 5485:1986 is an international standard established by the International Organization for Standardization (ISO) that specifies the technical requirements and primary dimensions for fixed steel deck stairs used on inland vessels. This standard ensures consistent safety, performance, and design quality of stationary steel staircases installed on the decks of river and inland waterway ships. It excludes indoor stairs, outboard stairs, emergency stairs, and specialized staircases.
Developed by ISO Technical Committee 8 (Shipbuilding and Marine Structures), this standard supports the inland navigation sector by providing practical guidelines that enhance vessel safety and operational efficiency.
Key Topics
Scope and Application
ISO 5485:1986 applies exclusively to fixed steel deck stairs on inland vessels. It is not intended for interior vessel stairs, gangways, emergency stairs, or any special-purpose staircases.Design and Construction Requirements
- Stairs must facilitate effective drainage of water, snow, and ice to maintain slip resistance.
- Steel steps (treads) are fabricated either by stamping anti-slip metal sheets, grating forms, or smooth steel plates equipped with anti-slip strips on the front edges.
- Steps should have an inward inclination between 1° and 20° to promote water drainage, except for grated steps which need no inclination.
- Absence of rear protective plates on stair stringers (limons) allows for optimal installation on ship decks.
Materials and Fixing Methods
- Stringers (limons) are made from steel profiles in U-shapes, I-shapes, or other approved cross sections.
- Steps are welded or bolted securely to stringers. The entire stair unit is firmly anchored to the deck with support feet or equivalent fixing means.
- When steps are attached directly to a superstructure wall or bulkhead with adequate strength, welding can be done without additional stringers. Reinforcements may be added at welding points if necessary.
Safety Features
- Fixed steel deck stairs must be equipped with guardrails attached to the stringers.
- Where the stair is adjacent to a bulkhead or ship structure, only the exposed side requires a guardrail.
- For passenger vessels, guardrails must be installed on both sides of the stairs to enhance safety.
Dimensions and Tolerances
ISO 5485 defines key dimensional parameters:- Stair inclination angles of 45°, 50°, or 55°, with recommendations favoring 45° for passenger vessels.
- Stair widths typically range from 600 mm to 1000 mm, with the exposed part of the step (tread) dimensions adjusted according to inclination.
- Step spacing and dimensions have a maximum allowed tolerance of ±3 mm for consistent installation quality.
Applications
ISO 5485:1986 primarily serves naval architects, shipbuilders, and safety engineers within the inland waterway shipping industry. Its specifications ensure fixed steel deck staircases in cargo ships, passenger ferries, tugboats, and other inland vessels offer:
- Improved Safety: Anti-slip surfaces and proper guardrails reduce fall risk during onboard movement.
- Durability: Using steel and sound welding practices ensures longevity even in challenging riverine environments.
- Operational Efficiency: Consistent dimensions and construction methods simplify maintenance and replacement.
- Regulatory Compliance: Adhering to the international standard supports meeting national and regional maritime safety requirements.
Related Standards
For a comprehensive approach to shipbuilding and inland vessel safety, ISO 5485 should be considered together with other maritime standards, including but not limited to:
- ISO 3874 – Shipbuilding and marine structures - Single ladders, vertical ladders, and their tests.
- ISO 13857 – Safety of machinery - Safety distances to prevent hazard zones being reached by upper and lower limbs.
- National inland navigation regulations pertaining to vessel construction and passenger safety.
- ISO 14691 – Shipbuilding - Navigation signs and signals.
By integrating ISO 5485:1986 with complementary standards, stakeholders achieve higher safety and design consistency across inland vessel stair structures.
Keywords: ISO 5485, fixed steel deck stairs, inland vessels, shipbuilding standards, maritime safety, steel stair dimensions, deck stair design, passenger vessel stairs, inland navigation safety, ship structure standards.
Frequently Asked Questions
ISO 5485:1986 is a standard published by the International Organization for Standardization (ISO). Its full title is "Shipbuilding - Inland vessels - Fixed steel deck stairs". This standard covers: Specifies the technical requirements and main dimensions. Is not applicable to indoor stairs, outboard stairs, emergency and special purpose stairs.
Specifies the technical requirements and main dimensions. Is not applicable to indoor stairs, outboard stairs, emergency and special purpose stairs.
ISO 5485:1986 is classified under the following ICS (International Classification for Standards) categories: 47.060 - Inland navigation vessels. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 5485:1986 has the following relationships with other standards: It is inter standard links to ISO 5485-2:1980. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase ISO 5485:1986 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of ISO standards.
Standards Content (Sample)
International Standard
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION.MEX,QYHAPOAHAR OPI-AHM3AWR I-l0 CTAHCIAPTM3AUMM~ORGANISATION INTERNATIONALE DE NORMALISATION
Shipbuilding - Inland vessels - Fixed steel deck stairs
Ba teaux de navigation in thrieure - &helies mb talliques de pon t stationnaires
Construction navale -
First edition - 1986-12-01
Ref. No. ISO 5485-1986 (E)
UDC 629.122.011.57-034.1
Descriptors : shipbuilding, inland navigation, decks, stairways, dimensions, specifications.
Price based on 2 pages
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. Esch 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, govern-
mental and non-governmental, in liaison with ISO, also take part in the work.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the ISO Council. They are approved in accordance with ISO procedures requiring at
least 75 % approval by the member bodies voting.
International Standard ISO 5485 was prepared by Technical Committee ISO/TC 8,
Shipbuilding and marine structures.
This first edition cancels and replaces ISO 5485/2-1980, of which it constitutes a minor
revision.
Users should note that all International Standards undergo revision from time to time
and that any reference made herein to any other International Standard implies its
latest edition, unless otherwise stated.
0 International Organkation for Standardkation, 1986
Printed in Switzerland
INTERNATIONAL STANDARD ISO 5485-1986 (E)
Shipbuilding - Inland vessels - Fixed steel deck stairs
2.2.2 If the superstructure wall is sufficiently solid at the place
1 Scope and field of application
of installation of the stairs, the treads may be welded directly to
the wall without the side plate.
This International Standard specifies the technical require-
ments and main dimensions of fixed steel deck stairs, used in
If necessary,
...
Norme internationale
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION.MEIKAYHAPOAHAR OPI-AHM3AuMR l-l0 CTAH~APTkl3AL&lM.ORGANlSATlON INTERNATIONALE DE NORMALISATION
- Bateaux de navigation intérieure -
Construction navale
Échelles métalliques de pont stationnaires
Shipbuilding - lnland Vesse/s - Fixed steel deck stairs
Première édition - 1986-12-01
CDU 629.122.011.57-034.1 Réf. no : ISO 54851986 (F)
Descripteurs : construction navale, navigation fluviale, pont de bateau, escalier, dimension, spécification.
Prix basé sur 2 pages
Avant-propos
L’ISO (Organisation internationale de normalisation) est une fédération mondiale
d’organismes nationaux de normalisation (comités membres de I’ISO). L’élaboration
des Normes internationales est confiée aux comités techniques de I’ISO. Chaque
comité membre intéressé par une étude a le droit de faire partie du comité technique
créé à cet effet. Les organisations internationales, gouvernementales et non gouverne-
mentales, en liaison avec I’ISO participent également aux travaux.
Les projets de Normes internationales adoptés par les comités techniques sont soumis
aux comités membres pour approbation, avant leur acceptation comme Normes inter-
nationales par le Conseil de I’ISO. Les Normes internationales sont approuvées confor-
mément aux procédures de I’ISO qui requièrent l’approbation de 75 % au moins des
comités membres votants.
La Norme internationale ISO 5485 a été élaborée par le comité techniq ue ISO/TC 8,
Construction navale et structures maritimes.
Cette première édition annule et remplace I’ISO 5485/2-1980, dont elle constitue une
révision mineure.
L’attention des utilisateurs est attirée sur le fait que toutes les Normes.internationales
sont de temps en temps soumises à révision et que toute référence faite à une autre
Norme internationale dans le présent document implique qu’il s’agit, sauf indication
contraire, de la dernière édition.
0 Organisation internationale de normalisation, 1986 0
Imprimé en Suisse
ISO 54854986 (F)
NORME INTERNATIONALE
Construction navale - Bateaux de navigation intérieure -
Échelles métalliques de pont stationnaires
1 Objet et domaine d’application 2.2.2 Si, à l’endroit de la fixation de l’échelle, une cloison de la
superstructure offre une solidité suffisante, les échelons peu-
La présente Norme internationale spécifie les exigences vent être soudés directement à la cloison, sans limon.
techniques et fixe les dimensions principales des échelles
métalliques de pont stationnaires, utilisées sur les bateaux de En cas de nécessité, la cloison, à l’endroit de la soudure des
navigation intérieure. échelons, peut être renforcée de facon appropriée.
Elle n’est pas applicabl
...
Norme internationale
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION.MEIKAYHAPOAHAR OPI-AHM3AuMR l-l0 CTAH~APTkl3AL&lM.ORGANlSATlON INTERNATIONALE DE NORMALISATION
- Bateaux de navigation intérieure -
Construction navale
Échelles métalliques de pont stationnaires
Shipbuilding - lnland Vesse/s - Fixed steel deck stairs
Première édition - 1986-12-01
CDU 629.122.011.57-034.1 Réf. no : ISO 54851986 (F)
Descripteurs : construction navale, navigation fluviale, pont de bateau, escalier, dimension, spécification.
Prix basé sur 2 pages
Avant-propos
L’ISO (Organisation internationale de normalisation) est une fédération mondiale
d’organismes nationaux de normalisation (comités membres de I’ISO). L’élaboration
des Normes internationales est confiée aux comités techniques de I’ISO. Chaque
comité membre intéressé par une étude a le droit de faire partie du comité technique
créé à cet effet. Les organisations internationales, gouvernementales et non gouverne-
mentales, en liaison avec I’ISO participent également aux travaux.
Les projets de Normes internationales adoptés par les comités techniques sont soumis
aux comités membres pour approbation, avant leur acceptation comme Normes inter-
nationales par le Conseil de I’ISO. Les Normes internationales sont approuvées confor-
mément aux procédures de I’ISO qui requièrent l’approbation de 75 % au moins des
comités membres votants.
La Norme internationale ISO 5485 a été élaborée par le comité techniq ue ISO/TC 8,
Construction navale et structures maritimes.
Cette première édition annule et remplace I’ISO 5485/2-1980, dont elle constitue une
révision mineure.
L’attention des utilisateurs est attirée sur le fait que toutes les Normes.internationales
sont de temps en temps soumises à révision et que toute référence faite à une autre
Norme internationale dans le présent document implique qu’il s’agit, sauf indication
contraire, de la dernière édition.
0 Organisation internationale de normalisation, 1986 0
Imprimé en Suisse
ISO 54854986 (F)
NORME INTERNATIONALE
Construction navale - Bateaux de navigation intérieure -
Échelles métalliques de pont stationnaires
1 Objet et domaine d’application 2.2.2 Si, à l’endroit de la fixation de l’échelle, une cloison de la
superstructure offre une solidité suffisante, les échelons peu-
La présente Norme internationale spécifie les exigences vent être soudés directement à la cloison, sans limon.
techniques et fixe les dimensions principales des échelles
métalliques de pont stationnaires, utilisées sur les bateaux de En cas de nécessité, la cloison, à l’endroit de la soudure des
navigation intérieure. échelons, peut être renforcée de facon appropriée.
Elle n’est pas applicabl
...
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