Overview

ISO 7221:1984 establishes the principal technical requirements for shipborne barges, series 1, when they are loaded, unloaded and transported on board barge carriers. The standard addresses structural and operational considerations to ensure safe handling, stacking and stowage of barges within a carrier’s hold or on deck. It also highlights the need to account for inertia loadings arising from oscillatory and translatory motion of the carrier and any uneven distribution of load in the barge.

Keywords: shipborne barges, barge carriers, lifting posts, stacking, securing, weather-tight deck openings, ISO 4175.

Key Topics

Scope and purpose
- Defines principal technical requirements for series 1 shipborne barges during loading, unloading and transport on barge carriers.
Conditions of lifting
- Barges shall be constructed and arranged to permit repeated lifting while fully loaded. Lifting arrangements, posts and supporting surfaces must provide reliable, repeatable handling.
Stacking
- Requirements cover stacked barges within a carrier’s hold, with consideration for inertia loadings due to vessel motion and any uneven onboard loads.
Securing on deck and in hold
- Barges must be fitted with special accessories and devices (for example, lifting-post fittings) to enable secure stowage and to interface with the barge carrier’s securing systems. The arrangement and construction of these accessories should conform with the referenced dimensional standard.
Deck openings and weather protection
- All deck and hatch openings where operationally appropriate should be provided with adequate weather-tight protection to prevent ingress of rain or sea water during transport.
Normative reference
- ISO 4175 is referenced for main dimensions and for guidance on the arrangement and construction of fittings and supporting surfaces.

Applications

This standard is primarily intended for:

Shipbuilders and naval architects designing barge carriers and shipborne barges.
Operators and cargo planners who load, stack and transport barges on carriers.
Classification societies and regulatory bodies assessing compliance with structural and securing requirements.

Practical benefits include safer handling and reduced risk of damage to barges and cargo, improved load planning, and clearer requirements for lifting and securing hardware.

Related Standards

ISO 4175 - Shipbuilding: Shipborne barges, series I - Main dimensions (normative reference in ISO 7221).

Note: ISO 7221:1984 focuses on principal technical requirements and cross-references ISO 4175 for dimensional and fitting details. For full implementation consult the complete texts of both standards and any applicable national or maritime regulations.

Overview

Keywords: shipborne barges, barge carriers, lifting posts, stacking, securing, weather-tight deck openings, ISO 4175.

Key Topics

Scope and purpose
- Defines principal technical requirements for series 1 shipborne barges during loading, unloading and transport on barge carriers.
Conditions of lifting
- Barges shall be constructed and arranged to permit repeated lifting while fully loaded. Lifting arrangements, posts and supporting surfaces must provide reliable, repeatable handling.
Stacking
- Requirements cover stacked barges within a carrier’s hold, with consideration for inertia loadings due to vessel motion and any uneven onboard loads.
Securing on deck and in hold
- Barges must be fitted with special accessories and devices (for example, lifting-post fittings) to enable secure stowage and to interface with the barge carrier’s securing systems. The arrangement and construction of these accessories should conform with the referenced dimensional standard.
Deck openings and weather protection
- All deck and hatch openings where operationally appropriate should be provided with adequate weather-tight protection to prevent ingress of rain or sea water during transport.
Normative reference
- ISO 4175 is referenced for main dimensions and for guidance on the arrangement and construction of fittings and supporting surfaces.

Applications

This standard is primarily intended for:

Shipbuilders and naval architects designing barge carriers and shipborne barges.
Operators and cargo planners who load, stack and transport barges on carriers.
Classification societies and regulatory bodies assessing compliance with structural and securing requirements.

Practical benefits include safer handling and reduced risk of damage to barges and cargo, improved load planning, and clearer requirements for lifting and securing hardware.

Related Standards

ISO 4175 - Shipbuilding: Shipborne barges, series I - Main dimensions (normative reference in ISO 7221).

ISO 7221:1984 PDF

Technical details

Abstract

Overview

Key Topics

Applications

Related Standards

Related standards

Abstract

Overview

Key Topics

Applications

Related Standards

Related standards

Shipbuilding — Shipborne barges, series 1 — Main dimensions

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