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For more than 30 years, ArcelorMittal Europe has recognised the importance of construction refurbishment and has a complete offer of modified products and solutions:
- Sheet piles, columns, tubes, and welded sections for addition to or consolidation of existing foundations.
- Structural sections or light steel frame solutions for vertical or horizontal extensions on existing buildings, combined with high strength steel grades for lighter structures.
- Composite flooring solutions, such as Cofraplus®, enable an increase in load bearing capacity on existing structures whatever the material may be.
- Full range of metallic coated and organic coated steels, but also profiles, sandwich panels, and cassettes to create a new envelope system that improves both the aesthetics and the energy efficiency of existing buildings.
- Services such as products delivered directly on site with adapted logistics to meet site constraints, especially in urban areas.
ArcelorMittal’s products and solutions for renovation can be adapted and modified to suit any project and have proven to be efficient in very demanding local conditions.
Renovation
ArcelorMittal has developed a complete range of products and construction solutions adapted to construction renovation.
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by performanceRenovation is increasingly becoming the chosen strategy to enhance energy efficiency, comfort, adaptability, and flexibility and to renew buildings’ aesthetics. It is also a highly utilised approach to improve the attractiveness of historical urban areas. Renovation augments construction sustainability and the contribution of the construction segment to the economy.
Related news & technical articles
Ateliers 3S - Downtown chic with Granite®
17 November 2020Ateliers 3S create contemporary looks for urban areas with ArcelorMittal organic coated steels. Bacacier is a leading supplier of steel roofing, cladding, and flooring applications for industrial and commercial buildings in France. In 2012, the company created a new entity – Ateliers 3S – to work closely with architects who were building or refurbishing buildings in the centres of cities around Europe. Using organic coated steels from ArcelorMittal Europe – Flat Products, Ateliers 3S have developed a range of signature products specifically for the urban environment. One of the latest is the New York® range which allows architects to play with shapes and shades using a ‘toolbox’ of solutions.
Product NewsNew Granite® Impression brochure available!
11 July 2019The new Granite® Impression: Impressive aesthetics for buildings brochure has arrived!
Product NewsComposite flooring solution for Patershof Hotel: steel deck & extra light concrete
The site of the Martin's Patershof Hotel – the result of renovating and transforming a church into a four star hotel – was the first to implement an innovative solution combining composite flooring with lightweight concrete, namely Cofraplus® 77 LS, with Argex concrete consisting of expanded clay aggregates. This project was the culmination of nearly two years of research and development by ArcelorMittal Research Centre and the close attention paid by the engineers to ArcelorMittal Construction's prescription to meet the needs of the builder-promoter.
Article
Ateliers 3S - Downtown chic with Granite®
Ateliers 3S create contemporary looks for urban areas with ArcelorMittal organic coated steels. Bacacier is a leading supplier of steel roofing, cladding, and flooring applications for industrial and commercial buildings in France. In 2012, the company created a new entity – Ateliers 3S – to work closely with architects who were building or refurbishing buildings in the centres of cities around Europe. Using organic coated steels from ArcelorMittal Europe – Flat Products, Ateliers 3S have developed a range of signature products specifically for the urban environment. One of the latest is the New York® range which allows architects to play with shapes and shades using a ‘toolbox’ of solutions.
Inspired by Phillipe Starck
“The idea for Ateliers 3S came when Jean-Christophe Vigouroux, CEO of the parent company Bacacier, met France’s best-known contemporary designer – Philippe Starck – back in 2011,” explains Julien Faisandier, managing director of Ateliers 3S. “That inspired us to create the Starck® range, the first in the Ateliers 3S portfolio. The range is designed as a toolkit which allows architects to design truly unique projects. It includes an exclusive colour palette, panels in five different designs, and a range of accessories.”
Mix and match approach
From there the Ateliers 3S family grew to include Cadence® and Epure®. Like the Starck® range, these products are based on different steels from ArcelorMittal Europe – Flat Products notes Julien Faisandier: “The exact grade we use depends on the aesthetics required by the customer, and the type of environment where the building is located. We use a lot of Granite® HDS and HDX, particularly in metallic colours.”
The Cadence® range includes 11 profiles with squared standing seams and 11 profiles with triangular seams. The products can be mixed and matched to create a specific design. The finish of these panels can be very tactile thanks to the use of ArcelorMittal products such as Granite® Quartz.”
The Epure® range is a standing seam solution from Ateliers 3S and utilises Granite® Storm from ArcelorMittal. It gives architects four zinc colour options and standing seam panels in four different widths. The colours and widths used on a facade can be mixed to create repeating or random patterns of seams and/or colours.
The latest in the series is New York® which represents a real change for Ateliers 3S. “New York® uses a special folding technique and allows architects to play with shapes and shades,” says Julien Faisandier.
Product consistency and support highly valued
The consistency of ArcelorMittal’s offer is a key consideration for Ateliers 3S notes Julien Faisandier: “When we send a sample to an architect, it can take 18 months for them to place an order. During this period, it is critical that the aesthetics of the steel do not change. ArcelorMittal’s ability to produce consistent products – sometimes years apart – is something we value greatly.”
Throughout the development of the Ateliers 3S family, the company has had a lot of support from ArcelorMittal’s Global R&D teams explains Julien Faisandier: “They provide a wealth of samples and advice at every stage in our development cycle. For example, ArcelorMittal helped with the saline tests we needed to conduct before the products could be placed on the market. We also appreciate the availability of the sales and technical teams, particularly when it comes to testing new steels.”
Floirac project
One recent project undertaken by Ateliers 3S saw the company supply over 20 000 m2 of panels from its Cadence® range. The material was used to clad 17 towers located in Floirac (south-west France) which accommodate 453 housing units. The panels were made from Granite® HDS in three different shades.
The project was jointly designed by TAAD Architectes and MOG Architectes. The architects’ specifications required a material which could insulate each building and give them a more modern and aesthetic appearance. To minimise disruption to residents, the Cadence® panels were fixed to a complex wooden frame in the factory and then attached to the buildings. The use of prefabrication enabled the large project to be completed in just six months.
Like all steel facades, the panels are maintenance-free. Due to the high-end coatings used on the steel, the Cadence® panels are guaranteed to remain beautiful for at least 30 years.
About Ateliers 3S
Ateliers 3S provide cladding applications for architectural projects including new builds and refurbishments. As well as supplying material to major projects, Ateliers 3S also provide solutions to individuals who are extending or refurbishing their existing homes.
More info at www.ateliers3s.com
Text: ArcelorMittal Europe Communications, Constructalia
Images: Bacacier
Related link(s)
Ateliers 3S's New York® reflects the skyline of the Big Apple’s main districts.
The Floirac project uses a mix of three complementary shades from Ateliers 3S’s Cadence® range.
The Starck® range gives architects a toolbox of solutions. Hardware store by architect Alain Boudet.
Julien Faisandier, Managing Director of Ateliers 3S
Floirac project from Ateliers 3S with Granite®
The random ribs of Cadence® give each building in the Floirac project a unique look.
New Granite® Impression brochure available!
The new Granite® Impression: Impressive aesthetics for buildings brochure has arrived!
Granite® Impression is multilayer organic steel coating with an offset printed pattern that imitates nature with its smooth, wrinkle, or grained finish, depending on the colour.
Download this brochure and more in our Document library: https://constructalia.arcelormittal.com/en/documents_library
Composite flooring solution for Patershof Hotel: steel deck & extra light concrete
Text & photos: ©ArcelorMittal Construction
The site of the Martin's Patershof Hotel – the result of renovating and transforming a church into a four star hotel – was the first to implement an innovative solution combining composite flooring with lightweight concrete, namely Cofraplus® 77 LS, with Argex concrete consisting of expanded clay aggregates. This project was the culmination of nearly two years of research and development by ArcelorMittal Research Centre and the close attention paid by the engineers to ArcelorMittal Construction's prescription to meet the needs of the builder-promoter.
The aim of the Martin’s Patershof Hotel project was unique: to create, within the heart of a nineteenth century church in Mechelen, Belgium - a five-storeyed hotel with 77 rooms in a single framework. The renovation and transformation of the site was the first to apply composite flooring with lightweight concrete.
Composite flooring
Composite floor slab is a mixed construction system consisting of a steel sheet which serves as shuttering for concrete and reinforces the slab, totally or partially replacing the tensile reinforcements.
It is essential to achieve a bond between the steel and concrete that is stronger than the horizontal stresses to which the slab is exposed.
In this system, the concrete-steel bonding is achieved thanks to the special design of the steel sheets. These sheets are embossed with frustum-shaped projections, repeated indefinitely, both on their horizontal surfaces and on the sloping sides.
During assembly and concrete grouting, the self supporting steel deck constitutes a working platform.
A new solution for renovation
In new constructions, light flooring is particularly useful in multi-storeyed buildings because it significantly reduces the dead weight and lightens the structure and the foundations. But this product has also proved to be useful in renovation works where it is advisable not to overload the existing masonry beyond its limited bearing capacity. In addition, it enables increase in span length without forestay during the concrete grouting.
A solution suited for the Martin’s Patershof Hotel project
ArcelorMittal’s decision to use ArcelorMittal Construction's composite floor Cofraplus® 77 LS combined with Argex concrete is justified for several reasons. First, the configuration of the site required the manual transfer of all the materials through the entrance gate which was only 1.4 m wide.
Then, the thickness of the slab had to be 23 cm, taking the permissible dead weight by adding lightweight concrete up to 1.5 kN / m², which amounted to 450 tonnes for a floor space of 3000 m². The last reasoning was considered decisive by the contractor as the land on which the church is based does not allow the use of conventional composite floors.
The ultimate load bearing capacity was weak. Furthermore, the contractor wanted to avoid the use of concrete props in the middle of this dense structure with five floors.
Despite its well-known rigidity within the range of composite floors, Cofraplus® 77 did not have the permit to cross the limit of 3.2 m with 23 cm of normal concrete. The Argex concrete had the permit to do so. The project technicians used structural concrete with density ranging between 16 and 18 kN/m3 instead of 25 kN/m3. Hence, for a 15 cm thick slab, there was a reduction of about 1 kN / m².
An innovation that met all the objectives: stability and fire resistance for engineers in addition to approved planning and financial savings for the developer-contractor.
Related link(s)
Composite Flooring Solution in Patershof
Concrete Pouring: composite floors in Patershof
ArcelorMittal Construction’s Composite Floor Cofraplus 77 LS Combined With Argex Concrete
Patershof: from church to hotel with steel structure
Hotel Patershof: view of the steel structure & flooring