The 25 km Jokeri Light Rail tram line, including 16 km in Helsinki and the remaining 9 km in Espoo, will replace the current main bus line 550, which is the busiest in the region. Around 91 000 passengers are expected to use the Jokeri tram on weekdays by 2030. The budget for the 25 km line is 386 million euros. The line will have a total of 33 stations and will open in June 2024.

Supplied rails

In total, the project includes the supply of:

• 77 400 metres of rail from Królewska and Dąbrowa in Poland, representing 3823 tonnes, and
• 23 500 metres of grooved rails from Rodange, representing 1400 tonnes.

These quantities also include the supply of curved rails necessary for making the bends during the laying of the tram tracks in the city. These curved rails were made in the new finishing centre that has been in the Rodange plant since the beginning of 2020.

A complex project

The complexity of this project requires the imperative respect of deadlines and delivery timing, requirements to which the ArcelorMittal plants have been able to respond to by being efficient in terms of manufacturing times and deliveries. Each week, an area of the city is neutralised and reserved for the laying of the rails. The stakes are high as each delay can cause many difficulties in setting up the project which currently employs more than 700 workers.

Text:
ArcelorMittal Luxembourg, Constructalia

Images:
ArcelorMittal

Related link(s)

Rodange rails

Jokeri tram line

Join Steligence for this free English-language webinar on Thursday 28 January 2021 at 11.00 CET.

Topic: Performance-based approaches: How the revision of EN 1991-1-2 will impact the fire design of structures

Natural fire safety concepts are being used more and more frequently in structural fire engineering. They allow us to more realistically assess the thermal actions induced by fire and, therefore, to optimise building designs while ensuring a sufficient level of safety.

EN 1991-1-2 includes guidance to predict the thermal impact of compartment fires and localised fires on structural elements. This document was recently revised by European experts to provide additional options for fire engineers.

This webinar will deliver a review of the different parts of this standard and related amendments made in the scope of the second generation of Eurocodes.

Related link(s)

Registration

Last year, the German city of Mülsen - just a few kilometres from the birthplace of legendary car brands Horch, Audi, and Trabant - became home to the country’s most modern kart racing track, Arena E. Built using ArcelorMittal steel, the track is operated by the Allgemeiner Deutscher Automobil Club (ADAC) with former kart racer Kevin Illgen as managing director.

Multiple uses

The 18-hectare site offers motorsport enthusiasts a place to do laps with karts and pocket- and mini-bikes. ADAC also envisages the racetrack being used by the Zwickau University of Technology for research driving and testing.

High visibility for our steel

ArcelorMittal Construction Deutschland supplied various products for the construction of the complex:

• 1003BM sandwich panels in the colours AM 7016 (anthracite) and AM 9006 (white aluminium)
• flat sheets (in the same colours)
• 135/310 supporting shells

Our sandwich panels were used to build the facade of the indoor karting hall; the start-finish tower, which meets the most modern requirements and houses the race office, speakers, and timekeeping system; and the central building complex, comprised of reception and conference rooms, catering, and the race hall. Our flat sheets were used to build the folded parts, and our supporting shells - supplied by our Brehna plant - were used in the roof construction.

Overall, the functional units, cladded with anthracite panels and separated by silver sandwich panels, match perfectly with the colour of the track creating a coherent visual environment.

Arena E will host up to 18 racing events a year, helping to showcase our steel to international audiences.

Text:
ArcelorMittal Europe Communications
Constructalia

Images:
ArcelorMittal

Related link(s)

Arena E kart racing track

Arena E indoor track

Arena E complex and track

Arena E

• Thanks to investment in the new continuous casting of the Avilés Steelworks and the necessary adaptations carried out on the Gijón heavy plate mill, the plant is already supplying steel plates that respond to the new needs of the wind power sector - particularly for offshore wind farm projects.
  
  
• The first of these plates, weighing almost 18 tons, was produced on the heavy plate mill in October 2020 with a length of 10 m, a width of 2.5 m, and a thickness of 90 mm.

Comprehensive remodelling

The Avilés Steelworks completed its second phase of comprehensive remodelling in January 2020, which involved the modernisation of its no.2 continuous casting machine. This has enabled the production of slabs of greater widths (2200 mm) and greater thicknesses (365 mm). The work undertaken on the continuous caster responds to the needs of our European customers to benefit from heavier plates required in the fabrication of the latest generations of wind towers.

The ability to manufacture plates of about 20 tons improves competitive position

In addition to the modernisation carried out at the Avilés Steelworks, the Gijón heavy plate mill has been adapted to be able to receive the new large slabs and carry out their rolling.

After the production improvements carried out in recent months, in which the Avilés Steelworks has been gradually increasing the thickness of its slabs, the heavy plate mill at the Gijón factory is now capable of producing plates of close to 20 tons unit weight.

The revamping of the no. 2 continuous casting line in Avilès also includes the implementation of state-of-the-art technologies such as Dynamic soft reduction (DSR) and new systems allowing better control of inclusions improving the quality of the slabs, which will be rolled to produce heavy plates.

Therefore, the plates produced from these slabs in our nearby Gijón heavy plate mill are benefitting from these technologies with better internal (less segregation, better internal quality, better homogeneity) and external (cleaner surface aspects) conditions.

These upgrades allow us to extend our technical offer and to supply the full specification of different sizes and grades for more required projects in the wind sector and also in the oil & gas, shipbuilding, and civil engineering sectors.

Text:
ArcelorMittal Spain

Images:
©ArcelorMittal Spain, ©Ian Dick

Related link(s)

Heavy plates at ArcelorMittal Asturias

Meeting the new standards

The increase in renewable energies and the progress in telecommunication technologies (e.g. G5) require the construction of new and/or the reinforcement of existing transmission lines and telecommunication towers.

The European Network of Transmission System Operators for Electricity (ENTSO-E) expect 18 000 kilometres of new transmission lines to be constructed in Europe by 2035 to cover the demand of renewable energies.

Weight reduction using S460

Steel lattice towers made of fully recyclable hot rolled angle profiles are a typical solution for transmission and telecommunication towers.

The use of high strength steel (e.g. S460) in steel lattice towers reduces the weight of standardised towers up to 20% compared to normal steel grades (e.g. S355), leading to lighter structures which are easier and faster to erect.

Innovative solutions

The reinforcement of existing steel lattice towers with carbon fibre reinforced polymer (CFRP) strips increases the resistance of the main bearing elements by 50% and allows a quick and easy upgrade of the towers to higher voltage and bigger G5-antennas.

Text:
ArcelorMittal Commercial Sections
Constructalia

Images:
ArcelorMittal
Angelhy

Related link(s)

Mike Tibolt, ArcelorMittal Global R&D

Angelhy: Innovative solutions for design and strengthening of telecommunications and transmission lattice towers using large angles from high strength steel and hybrid techniques of angles with FRP strips

Angelhy steel lattice tower banner

Steel roofing is a popular choice in the construction and renovation market. The numerous advantages of steel roofing are what make it so convincing.

The advantages of steel roofing

The roof is one of the most visible, eye-catching elements of a house. If you are looking for an aesthetic, light, and easy-to-install roof with convenient options, all at an affordable price, then you should definitely consider steel roof tiles. It is a solution that has been successfully used for years for roofing in millions of homes and other types of buildings.

A wide range of organic coated steels for roofing applications

ArcelorMittal's range of organic coated Granite® steel for roofing offers a combination of a variety of textures and rich colours. For example: Granite® Storm works impeccably in demanding conditions, Granite® Ultramat offers a distinctive texture and matt finish, and Granite® Impression Cloudy is a steel with unique aesthetics including an appearance resembling natural materials such as clay or terracotta. These coatings are extremely durable and are corrosion and UV resistant.

Challenges in the creation of steel roof tiles

It would seem that there is nothing more pleasant when creating a steel roof tile than inventing its shape - a bend that will enhance the colour or reflect light in a unique way. However, not everyone is aware of the technical and material requirements that should or have to be met. Forming complex shapes on curved, convex, and concave surfaces in addition to the required flexibility of the varnish coat are challenging factors in the creation of steel roof tiles.

A partner in testing ArcelorMittal coatings

To ensure even longer use and greater durability of ArcelorMittal steel roofing, we began working with DACHPOLL to test Granite® Ultramat. Additionally, different tile shapes were tested by analysing bend radii. Thanks to our partner, the shape of the steel roof tiles have been adjusted in such a way so as not to exceed the required parameters for the varnish coat and to offer patterns of roof tiles that meet customers’ expectations.

About DACHPOLL

DACHPOLL have 40 years of experience in profiling roofing sheets and is a manufacturer of sheet metal profiling machines. DACHPOLL have also been conducting research in the field of profiling and sheet metal pressing for many years. A qualified team of engineers and specialists are constantly working to develop even better technological solutions in order to improve the quality of devices and products. As a result, their profiling machines are used by leaders in the roofing industry in Poland and abroad. The dynamic development of the company is also evident via the registration of several hundred industrial designs in patent offices in Poland, the European Union, Russia, and Ukraine. The patented industrial designs of DACHPOLL roofing sheets are currently setting trends in the roofing industry, and ArcelorMittal ensures that our Granite® Ultramat coating is being used at its best.

Text: Constructalia
Images: DACHPOLL

Related link(s)

DACHPOLL: Profiling machine

DACHPOLL: Production line for profiling steel roof tiles

Roof made of ArcelorMittal steel, profiled by DACHPOLL machines

Roof made of ArcelorMittal steel, profiled by DACHPOLL machines

Roof tiles profiled on DACHPOLL's profiling line

Roof tiles profiled on DACHPOLL's profiling line

Steel sheet piles have been used for decades in the construction of underground car parks, and this trend is increasing as the demand for underground car parks rises in densely populated areas. Steel sheet pile walls are a sustainable solution for underground car parks up to three or four levels below the surface.

This R&D report explores design methods, vertical loads and bearing capacity, innovative installation techniques, fire design methods, design software, sealing systems, and sustainability for underground car parks with steel sheet piles.

Paper abstract

Vehicle traffic and lack of parking space is one of the main challenges for big cities. Especially in city centres, land is very expensive and the trend to increase parking capacity is to build underground structures. In this article, an innovative, economical, and environmentally-friendly solution for underground car parks built with steel sheet piles is described. Several aspects like fire safety, impervious walls, vertical bearing capacity, environmental impacts, and reduction of traffic due to construction vehicles are discussed.

Research paper, abstract, images:
© João Martins, ArcelorMittal Commercial RPS; Michał Januszewski, ArcelorMittal Commercial Long Polska

Intro:
Constructalia

Related link(s)

Markthal underground car park in Rotterdam, The Netherlands

R&D report: Innovative and sustainable steel sheet pile solutions for undergound car parks

The 2021 edition of ArcelorMittal Sheet Piling’s general catalogue ‘Steel foundation solutions’ is now available!

This new edition introduces the new HZ 630M profile for HZ-M/AZ combined walls.

We also detailed the methodology used for running our life-cycle assessment to obtain our specific Environmental Product Declarations.

Download the new catalogue below or from our Document library.

Related link(s)

ArcelorMittal Sheet Piling: Steel Foundation Solutions

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