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FTI Group blog

Here you’ll find a range of articles that detail topical industry information and product news

Exploring the Versatility of Metal Decking Formwork

Metal decking formwork offers unmatched versatility in modern construction. From supporting deep beam style slabs to simplifying box culverts and composite slabs, its flexibility shines through a diverse range of projects.

Whether you’re building high-rise structures or managing stormwater runoff, metal decking formwork is the versatile solution for ensuring structural integrity and efficiency in your projects. FTI Group, recognised leaders in the prefabricated formwork industry, offer decking formwork solutions through their innovative BlueDeck Composite™ system. Let’s delve into metal decking, its applications and benefits.

Where can I use metal decking formwork?

Metal decking formwork is perfect for use in any application as sacrificial formwork. Some metal decking formwork is also certified and compliant for complete composite action, making it applicable for use in even more applications.

Deep Beam Slabs.

A deep beam slab is a type of structural slab that incorporates deep beams within its design. Deep beams are structural elements with a relatively large depth compared to their span.

In a deep beam style slab, these deep beams are integrated into the slab system to provide additional support and distribute loads more efficiently. Deep beam-style slabs offer enhanced structural performance and versatility, making them suitable for a wide range of construction projects where strength and durability are paramount, such as car parking buildings, industrial buildings, or high-rise construction projects.

The deep beams within the slab system help to redistribute loads and minimise deflection, resulting in a more stable and robust structure. Additionally, deep beam-style slabs allow for greater flexibility in architectural design, as they can accommodate longer spans and heavier loads without needing additional support columns.

Band Beam Slabs.

A band beam slab, also known as a beam and slab construction, is a method commonly used in building construction where reinforced concrete beams are used to support the load of the structure. These beams, often called band beams, are placed horizontally around the perimeter of the building or at intermediate levels to provide support and distribute the load evenly with metal decking formwork used in conjunction to create composite action slabs for added strength and efficiency in construction.

The band beams are typically used to transfer loads from walls or columns to the beams. They consist of a continuous concrete band around the perimeter of the building, which helps distribute the load evenly. Band beam slabs are common in residential and low-rise buildings. They play a crucial role in providing the framework for supporting the metal decking during the concrete pouring process.

Composite Slabs.

A composite slab is where a structural slab is constructed by combining two materials: concrete and steel. Typically, metal decking is placed on top of the steel beams, creating a framework that supports the concrete slab during construction. Once the concrete is poured into the metal decking, it forms a bond with the steel beams through the shear studs or similar connections.

The results in a composite action slab where the concrete and steel work together to resist loads, resulting in a stronger and more efficient structural system compared to traditional concrete slabs. This composite action enhances the structural performance, reduces the overall weight of the structure, and allows for longer spans between supports.

The metal decking serves as the formwork during concrete pouring, and after curing, it becomes an integral part of the composite slab. This type of slab is common in commercial and industrial buildings where high strength and long-span capabilities are required.

A composite slab project involves constructing a structural slab using a combination of steel decking and concrete, resulting in a composite action slab that offers enhanced strength and efficiency in construction.

On-Site Detention (OSD) Tanks.

OSD tanks are underground structures designed to temporarily store stormwater runoff from rainfall events. They are commonly used in urban areas, commercial developments, and industrial sites where space for traditional surface detention ponds is limited.

These tanks are typically constructed from concrete or other durable materials and are equipped with outlets and control structures to regulate the flow of stormwater.

For the construction of OSD tanks, metal decking formwork is typically used as sacrificial formwork for the lid of the tank, with a PVC walling system such as Dincel or Rediwall for the walls, which the metal decking is spanned across.

Box Culverts.

Box culverts are rectangular or square-shaped structures used to convey water, typically beneath roads, railways, or other transportation infrastructure.

They are often constructed from precast concrete segments or cast-in-place concrete, making them durable and resistant to corrosion. Box culverts are essential for managing stormwater runoff, preventing erosion, and maintaining the integrity of transportation networks.

For larger box culverts, metal decking formwork is typically used as the sacrificial formwork for the top of the culverts, with precast end caps to span the metal decking across.

Why choose BlueDeck Composite™?

BlueDeck Composite™ is an industry standout. It offers faster installation with short production and delivery lead times, ensuring efficient project timelines. BlueDeck Composite™ is fully certified and compliant for performance and structural integrity. BlueDeck™ has exclusive features like having a better interlocking connection that reduces concrete slurry leakage, resulting in a cleaner finish.

Additionally, FTI Group offers fixed rates for metal decking formwork for the project duration, which gives you stability and predictability in cost management.

Choosing BlueDeck Composite™ gives you peace of mind for quality, performance, and reliability.

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More Updates

Maximising Metal Decking Formwork: Key Design Considerations for Enhanced Safety and Performance

Metal decking formwork is widely used in modern construction for its versatility from civil applications and sacrificial formwork to concrete slabs with full composite action.

Whilst it’s crucial for a product to be certified and compliant with relevant building codes, it’s equally important to have a comprehensive understanding of composite action to realise the full potential of metal decking formwork.

Exploring More Compliance Hurdles in Stair and Handrail Design

In our previous blog, we delved into the top four compliance issues our Design Team encounters while assessing fire cores. In this installment, we’re going deeper into common compliance concerns, highlighting four additional issues that pertain to fire cores, stairs, and handrails.

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You can trust Fast Tread®
to be compliant with:

• AS/NZS1657:2018
for fixed platforms, walkways, stairways, and ladders
• AS/NZS1428.1:2009
for design for access and mobility
• AS/NZS1170.1:2002
for structural design actions
• AS/NZS3990:1993
for mechanical equipment
• AS/NZS4100:1998
for steel structures
• AS/NZS4991:2004
for lifting devices
• AS/NZS1554.1:2011
for structural steel welding
• AS/NZS4761:2001
for steel reinforcing materials

Compliance assured for your peace of mind. For more information, contact our design team.