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Infrastructure Division

Composite Girder Systems

Engineering excellence in steel-concrete composite structures designed for maximum span and minimal maintenance.

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Project Overview

This flagship project demonstrates the superior load-bearing capabilities of our composite girder technology. By strategically combining high-strength steel girders with a reinforced concrete deck, we achieved a span length previously thought impossible for this terrain without intermediate supports.

The composite action allows for shallower structural depths, increasing overhead clearance below while reducing the overall material weight by approximately 20% compared to traditional concrete-only solutions.

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Reduced Dead Load

Lightweight steel maximizes efficiency.

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Rapid Installation

Prefabricated components speed up on-site assembly.

weight 500T Load Capacity
straighten 120M Span Length
layers S460 Steel Grade
calendar_clock 14mo Completion Time

On-Site Installation

Watch the precision engineering during the critical lifting phase.

Time lapse video thumbnail of crane lifting large steel girder beam
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Implementation Phases

architecture

Design & Fab

CAD modeling and precision steel fabrication in controlled facility.

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Logistics

Transport of oversized girder sections using specialized trailers.

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Erection

Crane lifting and temporary shoring setup for main spans.

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Deck Casting

Pouring of reinforced concrete deck to enable composite action.

Material Specifications

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Structural Steel

High-tensile S460 grade steel plates, thermo-mechanically rolled for superior weldability and toughness at low temperatures.

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Concrete Mix

C45/55 high-performance concrete with silica fume additives to reduce permeability and enhance durability against chlorides.

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Shear Connectors

22mm diameter headed shear studs automatically welded to the top flange to ensure full composite interaction.

Project Gallery

Close up detail of steel girder connections and bolts

Connection Details

Workers welding on top of a steel structure
Finished bridge view from below showing the underside structure

Ready to Build With Confidence?

Contact JWS GROUP today to discuss how our composite girder solutions can optimize your next infrastructure project.