Modular Safety Railing System for Hopper Barge Coamings
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Solution Overview
Problem
Existing fall assist and arrest systems are not easily adaptable to the marine industry's specific requirements, particularly for hopper barges and docks, where workers need to access and exit the barge at various points along its perimeter.
Innovation Solution
A safety railing system with a track integral to a handrail, a carrier with a sliding attachment to the track, and the ability to be attached or removed at various points, allowing maximum flexibility for workers to enter or exit safely.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an enclosed track system with locked trolley is used, then fall arrest capability is improved, but flexibility for workers to enter/exit at any point deteriorates
Solution Approach 1:
The railing system is divided into modular sections that can be independently positioned and configured. The track is segmented into discrete sections that can be assembled in different arrangements, allowing workers to enter and exit at multiple points while maintaining fall arrest capability throughout the perimeter.
Solution Approach 2:
The system transitions from a static enclosed track to a dynamic configuration where the carrier can be freely positioned along the track at any location. The track sections can be repositioned and reconfigured to adapt to different operational requirements and access points.
2Stability of the object's composition
If the rail is embedded in building structure, then structural integration is improved, but adaptability to existing barge structures deteriorates
Solution Approach 1:
The railing system uses discrete, modular rail sections that can be independently mounted to the barge structure. Each section can be separately attached to coamings or other structural elements, allowing flexible installation on existing barges without requiring complete structural integration or modification of the entire barge.
Solution Approach 2:
The system introduces intermediate mounting brackets and attachment mechanisms that interface between the rail sections and the existing barge structure. These intermediaries allow the railing to be mounted to various types of coamings and structural elements without requiring the rail to be embedded in the barge structure itself.
3Adaptability or versatility
If multiple obstructions are present on deck edge, then functional requirements are improved, but safety risk from falls deteriorates
Solution Approach 1:
The railing system serves multiple functions simultaneously: it acts as a physical barrier to prevent falls, provides a handrail for worker support and stability, and serves as a track for the fall arrest carrier. This multi-functionality addresses the various deck edge requirements while maintaining safety.
Solution Approach 2:
The system converts the potential harm of deck edge obstructions and slippery surfaces into beneficial features by providing a secure rail system that workers can grip and use for support. The rail becomes a positive safety feature that compensates for the hazardous conditions created by obstructions and slippery surfaces.
Data Source
AI summary
A safety railing system for a hopper barge with a toadstool shaped handrail section attached to the vertical gussets of a coaming of the hopper barge. The handrail section has a hollow head and a hollow stem with a bottom orifice and spaced apart slots long the handrail section. A carrier configured for attachment to a safety lanyard has an anchor at a first end that passes through one of the slots into the hollow stem but not through the orifice of the stem. A bracket latches onto the handrail section and is attached to one of the vertical gussets. Handrail sections may be linked together end to end and are straight or curved.