Beach Boardwalk Upgrade

Introduction

Incon was engaged by DM Composites to deliver structural design review and certification for multiple FRP beach access ramps and platforms located at Glenelg and South Brighton Beach, South Australia. The project forms part of a coastal accessibility upgrade, improving safe public access between promenade levels and beach areas.

Project
description

The project comprised three primary structures:

Glenelg 1 – Small Platform
Glenelg 2 – Medium Platform
South Brighton Beach Ramp & Landing

These systems included:

Elevated FRP access ramps and landings
Modular FRP grating deck systems
Stair access elements (Glenelg platforms)
Stainless steel handrails and balustrades
FRP structural framing including:

Bearers
Joists
Columns
Bracing systems

The structures follow modular layouts with repetitive framing grids enabling efficient prefabrication and installation.

Challenge

Structures are subjected to:

Salt-laden air (corrosion risk)
UV exposure
Sand abrasion→ requiring durable FRP and SS316 stainless steel components

FRP is orthotropic and sensitive to fabrication practices, requiring strict adherence to manufacturer guidelines and standards
Each platform and ramp had different geometry and loading conditions, requiring separate verification while maintaining consistency
Interface with contractor-designed elements

Piles / footings by others
Site conditions and levels to be verified on-site → required careful assumption management and coordination

Solution

Incon delivered a structured design review and certification package, including:

Design checks for:

Bearers, joists, columns, and bracing systems
FRP grating support systems

Validation against manufacturer design guides and standards
Structural review of stair systems (Glenelg platforms)
Ramp performance checks for serviceability and load compliance
Verification of all bolted and proprietary connections
Consideration of FRP-specific detailing (hole tolerances, sealing, etc.)
Review of handrail systems for:

Load resistance
Safety compliance
Durability in coastal conditions

Value
Delivered

Enabled certified, compliant FRP access infrastructure across multiple sites
Supported prefabrication efficiency through clear and coordinated markups
Ensured long-term durability in harsh coastal exposure conditions
Delivered within a tight programme and cost-efficient fee
Strengthened collaboration with specialist FRP contractor

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