Strukturas AS

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Strukturas AS

Strukturas AS Strukturas is a Norwegian engineering company specializing in steel related structures. Strukturas' aim is to help to take steel development further.

Strukturas is a Norwegian engineering company specializing in steel related structures such as Industrial Facilities,
Offshore Structures and Bridge Building Equipment (FT/MSS/LG). Since the 1800’s steel has played a major role in the development of industrialized society and the possibilities
offered are far from exhausted. Despite our focus on steel, we also have experience in structures made fr

om concrete, wood and aluminium. Our services extend from consultancy assignments to complete turnkey contracts.

22/04/2025

DW855 Zaklików –Stalowa Wola project - bridge over San river

Nice and informative article about Strukturas Overhead Movable System at Stalowa Wola where STRABAG is building an extra-dosed bridge over river San.

Construction of the bridge is part of construction of DW855 on the Zaklików - Stalowa Wola section executed by STRABAG Sp. z o. o. team:

Tomasz Mołdysz, Kamil Kaczmarek, Michael Bracha and Piotr Borkowicz

The extra-dosed bridge will be 1.76 km long and will be the longest bridge in the Podkarpacie region in the provincial road network. It will consist of four sections - independent piers.

Highlights and facts:
✅Max. Span: 45,8m / 40m (Approach / River)
✅Max. MSS Span: 42m / 35.5m (Approach / River)
✅Weigth Of Superstructure: 257,2 Kn/M / 439.6 Kn/M (Approach / River)
✅Cantiliver: 9,160m / 6.0m (Approach / River)
✅With Bridge Slab: 16.48m / 19.38m (Approach Span)
✅Min. Hor Radius: 1200m (Approach Span Only)
✅Max. Crossfall: 2%
✅Max Long Slope: 2,5 % / 1,72 % (Approach / River)
✅Deflection Of MSS: L/400

STRUKTURAS
WE MAKE IT SIMPLE!

15/04/2025

SO 203 Motorway bridge over Malši
🏗

800 m bridge was designed as a flyover with 19 spans. It contains 2 parallel decks with the width of 14,4m. The height of the bridge above the ground is 10 m at its highest point.

🔴 Strukturas Overhead MSS named SO 203 was used for construction of long deck of the bridge project D3 in the Czech Republic, close to Ceske Budejovice.

🔝 Highlighs & Facts:

Max Span: 42,0m
Max MSS Span: 35m
Weight of Superstructure: Approx 28,6t/m
Width Of Bridge Slab: 14,4m
Min.Hor.Radius: R= 2700m
Max Crossfall: 2,5%
Max Long Slope: 0,7%
Deflection of MSS: MAX L/400
Client: Doprastav, a.s.

The Movable Scaffolding System was designed as an overhead type with two main I beams. Opening of the formwork and launching the MSS is was ensured by hydraulic cylinders.

The entire steel structure weighing 525 tons was manufactured in China, in a certified factory, and was transported to the construction site in 12 meter containers.

The complete production of the MSS took three months, and its subsequent transport across half the globe took about five weeks.

Assembly took place completely directly on the construction site using 30,000 high-strength bolts.

Typical span by span concreting cycle of 42 m length bridge spans takes 14 days.

STRUKTURAS
WE MAKE IT SIMPLE!

01/04/2025

♻️ 🏗️ ⛔ Span by span
demolition of the bridges using the
MSS Movable Scaffolding System

Contractors Eiffage , , Max Wild GmbH and Arlt Bauunternehmen GmbH are using this demolition method for their client Die Autobahn

The demolition of the old bridge with MSS is an effective and safe solution:

- Minimal intervention to existing infrastructure.
- Using MSS for demolition allows the existing highway to remain open throughout all of the demolishing period.
- MSS allows the existing railway to remain open throughout most of the demolishing period.
- The MSS could be assembled on the ground and later could be lifted with 4 strand jacks.
- After finished demolition MSS could be lowered with 4 strand jacks on the ground for safe and productive MSS dismantling.
- The challenging MSS installation conditions can be carried out by professional site crew from Strukturas.
- The engineering challenge is to avoid an overload of the superstructure during the demolition and to ensure a safe load transfer within the load capacity of the MSS.
- After the demolition this same MSS could also be used for the construction of the bridge deck. This approach saves time and resources, making the construction process more efficient.

If you would like to learn more about bridge demolition using Movable Scaffolding System, send us an email [email protected] and we will contact you as soon as possible!

STRUKTURAS
WE MAKE IT SIMPLE!

25/03/2025

Strukturas GmbH at
Dresdner Brückenbausymposium

Strukturas GmbH has participated at Dresdner Brückenbau symposium 2025.
The venue had a hall for participants to have a great networking space.

Therefore Strukturas GmbH managing director Stefan Flachhuber and Strukturas AS managing director Øyvind Karlsen took a possibility to have a booth at symposium hall to meet the visitors. They are happy for all the contacts and interesting conversations.

With their extensive expertise in bridge construction they are are leading our activities in Germany, Austria and Switzerland.

If you missed this event and want to discus bridge building equipment solutions in Germany, Austria or Switzerland please contact:

STRUKTURAS GmbH
Wallbrunnstrasse 24
D-79539 LÖRRACH
Tel.: +47 35 96 82 00
Mail: [email protected]

STRUKTURAS
WE MAKE IT SIMPLE!

18/03/2025

🔴 🎬 45 Sec. VIDEO 🔄
BALANCED CANTILEVER TYPICAL CYCLE by
OFT - Overhead FormTraveller system 🎥

✅ This solution most commonly used for casting bridge and viaduct decks built with the cantilever method whose span varies from around 60 to 300 meters in length.

✅ A standard Overhead Form Traveller is normally designed to be used in casting segments up to 5 meters in length and up to around 300 tons in weight.

✅ Launchback system allows the Form Traveller (FT) to be disassembled close to the hammerhead, after being used in casting the deck’s last segment.

☝ This procedure streamlines operation and minimises cost!

❗ For longer or heavier segments, “tailor-made” Form Travellers can always be designed to work in these special conditions.

STRUKTURAS
WE MAKE IT SIMPLE!

11/03/2025

Special services for one of our first customers!

Our client Mota-Engil , currently the largest Portuguese construction company present in various markets worldwide, has awarded Strukturas the redesign project of an Overhead MSS originally not provided by Strukturas and which had been stored for several years in clients yard in Poland.

Strukturas’ redesign introduced significant modifications to the MSS, including a hinge joint between the main girder and the front nose, allowing it to be used on plan view curved decks, the addition of a rear concreting support, which allows for the transportation of pre-assembled U-shaped reinforcement using electrical winches, and the supply of a hydraulically operated internal formwork.

Mota-Engil transported the MSS from Poland to Portugal, where it is currently being used in the construction of railway viaducts. The rebuilt MSS steel structure was done in Portugal. Mota-Engil gave a special attention to pre-assembly and testing both at the workshop and at their central yard, due to the MSS being stored in Poland for several years.

Strukturas has been supplying various bridge building equipment, including Formtravellers FT and Movable Scaffolding Systems MSS, to Mota-Engil for around 30 years. Our the first supply was made in Portugal 1994 of an Underslung MSS to the company, that was then called Engil and later included in the Mota group, giving rise to the current Mota-Engil.

STRUKTURAS
WE MAKE IT SIMPLE!

04/03/2025

STRUKTURAS Underslung MSS for bridge SO 205
D1 Hričovské Podhradie - Lietavská Lúčka, Slovakia

Strukturas designed and supplied Underslung Movable Scaffolding System for bridge SO 205

The characteristics of the Movable Scaffolding Systems for bridge SO 205:
- Maximum span: 58.5 m
- Maximum span MSS: 49.3 m
- Capacity: 21.9 Tn/m
- Maximum deck width: 13.55 m
- Deck concrete casting in one phase
- Minimum hor. radius: 1350 m
- Maximum transversal slope: 2.5%
- Maximum longitudinal slope: 2.0%
- Deformations: L/400

STRUKTURAS
WE MAKE IT SIMPLE!

25/02/2025

🎥 Typical Cycle 🎬
Underslung MSS
Movable Scaffolding System
Box Cross Section

✅ The Underslung MSS solution is currently used in the construction of the decks on road and railway bridges and viaducts, with spans normally varying between 20 m and 70 m.
✅ Concreting each box section span using Underslung MSS can be done in one or more stages, depending on the deck design.
✅ The versatility of the Underslung MSS solution makes it possible to be used on decks with a variable plan view radius and up to minimum of 250 m to 300 m.
✅ The search for simple yet effective solutions has guided the work done by Strukturas over its many years in existence.
✅ The underslung MSS is equipped with three pairs of launching wagons with hydraulic jacks and teflon plates, designed to carry out the opening and closing of the two MSS halves and for its longitudinal movement.
✅ Apart from the current solution using Teflon plates in the launching wagons, Strukturas also has solutions using express rollers or wheels to reduce friction during MSS launching whenever this is necessary to ensure the stability of the columns.

STRUKTURAS
WE MAKE IT SIMPLE!

18/02/2025

📢 Important information for
German speaking
bridge builders and designers!

34th Dresden Bridge Building Symposium at
Messe Dresden Messering 6, 01067 Dresden,
March 19/20, 2025 is coming soon.
Strukturas will participate as exhibitor at Stand No. 42.

Let's meet and discuss productive and sustainable cast in situ bridge construction methods using:
✅ Span by span Movable Scaffolding System - MSS
✅ Balanced Cantilever Form Travellers - FT

STRUKTURAS
WE MAKE IT SIMPLE !

11/02/2025

♻️ 2 in 1
Underslung MSS
Movable Scaffolding System

✅ The Underslung MSS solution is currently used in the construction of the decks on road and railway bridges and viaducts, with spans normally varying between 20 m and 70 m.
✅ Concreting each box section span using Underslung MSS can be done in one or more stages, depending on the deck design.
✅ The versatility of the Underslung MSS solution makes it possible to be used on decks with a variable plan view radius and up to minimum of 250 m to 300 m.
✅ The search for simple yet effective solutions has guided the work done by Strukturas over its many years in existence.
✅ The underslung MSS is equipped with three pairs of launching wagons with hydraulic jacks and teflon plates, designed to carry out the opening and closing of the two MSS halves and for its longitudinal movement.
✅ Apart from the current solution using Teflon plates in the launching wagons, Strukturas also has solutions using express rollers or wheels to reduce friction during MSS launching whenever this is necessary to ensure the stability of the columns.
✅ Movable Scaffolding System ensures the minimal intervention to existing infrastructure.
Using MSS for demolition allows the existing highway and the road bellow to remain open throughout most of the demolishing period.
✅ After finished demolition this same MSS will also be used for the construction of the bridge’s new TT section decks.
This approach saves time and resources, making the construction process more efficient.
✅ The challenging conditions on the job site was not easy for Strukturas MSS assembly team to operate.
✅The engineering challenge - to avoid an overload of the superstructure during the demolition and to ensure a safe load transfer within the load capacity of the MSS.

STRUKTURAS
WE MAKE IT SIMPLE!

Aquilino Raimundo

04/02/2025

VISIT US!
B3.332 STRUKTURAS

April 7-13, 2025, Munich

29/01/2025

Thanks and see you next year at !

It was a pleasure to attend 35th Bridge Builder's Day at SVENSKA MÄSSAN – GÖTEBORG, 27 January 2025.

Thank you for opportunity to discuss productive and sustainable cast in situ bridge construction methods using:
✅ Span by span Movable Scaffolding System - MSS
✅ Balanced Cantilever Form Travellers - FT

STRUKTURAS
WE MAKE IT SIMPLE !

Aquilino Raimundo

28/01/2025

⛈️ 🌫️ Weather Protection for
☔ ❄️ Bridge Building Equipment

When this cold, wet and windy weather keeps you staying indoor, just imagine about fixing rebar on top of the high bridge deck formwork...

Just think about your productivity, quality and motivation☝️

✅️Weather protection on Bridge Building Equipment helps general contractors avoid weather delays and maintain project schedules by keeping wind, rain, snow, and other inclement weather out of their workspace. To lessen these difficulties, adequate weather protection at the bridge construction workplace could be installed.

✅️We share some good practices of weather protection application on STRUKTURAS Bridge Building Equipment what helps to take care of site workers and bridge quality.

STRUKTURAS
WE MAKE IT SIMPLE !

Aquilino Raimundo

21/01/2025

📢 Exciting news!
📷 Rader Hochbrücke / BAB A7

We are thrilled to announce that Strukturas started mobilisation of the Special Balanced Cantilever Formwork tailored to the unique engineering challenge of Implenia.

What is special about Strukturas solution?
✅ Tailored for Concreting the massive and geometrically narrow complex hammerhead to extend additional long and heavy segments using the balanced cantilever method.
✅ Prepared for the installation by incremental launching of a steel deck that will seamlessly overlay the partially concreted hammerhead.
✅ Allows continued concreting the hammerhead under the steel deck, integrating it with the deck while maintaining full support and precision.
✅This innovative solution minimise crane and labour needs through hydraulic adjustments, while keeping the Special Form Traveller in place to ensure precise geometry and alignment.

The new Rader bridge Key facts:
✔️1,500m long and 42m high.
✔️Concrete in situ: 49,815 m³
✔️Reinforcement Civil: 9,079 t
✔️Precast Concrete: 1,890 m³

WE MAKE IT SIMPLE!

Aquilino Raimundo

14/01/2025

using the MSS - Movable Scaffolding System

☝ At Raunheim, Mönchhof-Dreieck, 3 level crossing the old viaduct over the A3 and A67 was demolished by Max Wild GmbH .

✅In order to carry out the demolition work efficiently and safely while the motorways were in use, the 3,200-tonne bridge superstructure was first raised by 5.20 metres.

✅130-metre-long Strukturas Underslung MSS was assembled behind the abutment and launched forward below lifted bridge deck.

✅It was minimal intervention to the traffic on the highway below the deck.
✅The challenging MSS installation conditions was carried out by professional site crew from Strukturas.

Thanks for good cooperation to our professional client Max Wild GmbH

The demolition of the old bridge with MSS is an effective and safe solution.

Stay tuned for more information about this exiting project!

❗☝ 💡If you would like to learn more about bridge demolition using Movable Scaffolding System, send us a private message and we will contact you as soon as possible!

STRUKTURAS
WE MAKE IT SIMPLE!

Aquilino Raimundo

Adresse

Hydrovegen 55
Porsgrunn
3936

Nettsted

http://strukturas.no/

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