Strukturas GmbH at Dresdner Brückenbau symposium

Dresden Bridge Building Symposium

Strukturas GmbH has participated at Dresdner Brückenbau symposium 2025. 

The program included topics like:

  • The collapse of the Carola Bridge and its consequences;
  • Measuring instead of estimating – experiences from current structural investigations;
  • Fracture mechanics calculations to determine safe service life intervals for steel railroad bridges;
  • Innovative approaches for structural monitoring in the ASFINAG network;
  • Bridges from a hydraulic engineering perspective;
  • Further development of modular precast solutions in bridge construction;
  • and more.

 

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. 

We would also like to take a chance to invite You to our next big event Bauma2025 exhibition in Munich. We will be there as participants at hall B3.332

To discus bridge building equipment solutions in Germany, Austria, Switzerland please contact:

STRUKTURAS GmbH
Wallbrunnstrasse 24
D-79539 LÖRRACH
Tel.: +47 35 96 82 00
Mail: sfl@strukturas.com

STRUKTURAS

We make it simple!

To see all contacts of agents and branches of Strukturas SEE THIS LINK

Span by span demolition of the bridges using the MSS

Krondorf Demolish first span

Span by span demolition of the bridges using  STRUKTURAS MSS – Movable Scaffolding System.

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

See the video about the project. For more videos about our projects, visit and subscribe to our Youtube channel  STRUKTURAS YOUTUBE CHANNEL

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.

– Moreover 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 la@strukturas.no and we will contact you as soon as possible!

STRUKTURAS

WE MAKE IT SIMPLE!

#SpanBySpan #Bridge #Demolishing

#Brücke #Vorschubrüstung #Rückbau

#Bridge #ConstructionMethods

#Concrete #Project #Innovation

#Engineering #Technology

#Sustainability #Productivity

 

Balanced cantilever bridge project – Rader Hochbrücke / BAB A7

Balanced cantilever bridge project - 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.

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

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.

Stay tuned for this project and follow us on social media to updates.

Span by span bridge demolition using the MSS

Span by span bridge demolition using MSS

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

Strukturas Underslung MSS was assembled behind the abutment and launched forward below the lifted bridge deck.

It was minimal intervention to the traffic on the highway below the deck.

The challenging MSS installation conditions were carried out by a professional site crew from Strukturas.

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 and then a 130-metre-long supporting Underslung Movable Scaffolding System was inserted below. As general contractor, Max Wild GmbH took over the complete service for the demolition work at the Mönchhof Triangle and spent six months preparing and planning the actual demolition.

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 exciting 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 at 35th Bridge Builder’s Day in Sweden

Important information for Swedish Bridge Builders and Designers!

We’re excited to announce that we will be participating as exhibitors on the 35th Bridge Builder’s day in Sweden.

The event will be held at SVENSKA MÄSSAN – GÖTEBORG, 27 January 2025 and it is coming soon.

We will participate as exhibitor at Stand KF17.

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!

This year’s foreign contributions come from the USA and Norway. First out of New Jersey is the new construction of a longer railroad bridge with three extensive steel arches over water, which are assembled with the smallest possible tolerances. Afterwards, a combined infrastructure and urban development project from Miami will be presented, i.a. containing a bridge with a very unique design. The bridge consists of six concrete arches with vertical cables that hold up the bridge decks.

From Norway we then get a presentation of the new Sotra bridge, a roughly 900m long suspension bridge near Bergen, where everything from planning to execution is handled digitally.

Regarding the Swedish projects in this year’s program, we will hear about the extensive renovation of the Tingstad Tunnel that was completed during the year and about the Lilla Lidingö Bridge from an architectural perspective.

Other program items are news and changes in the regulations for bridge construction, insight into a research project at LTH regarding the volume increases that have occurred in civil engineering in recent years and how georadar can be used to check concrete structures.

Strukturas plan

Program

 
08:00Registration and coffee 
09:20IntroductionMaria Fuxborg, West Swedish Chamber of Commerce
09:40News and changes in the regulationsKarl-Magnus Krona, Swedish Transport Agency
10:00 amQuantity increases in constructionIvar Björnsson, Lund University of Technology
10:20New possibilities for clamping systems in the new EurocodeKlaus Lanzinger, General Technologies Inc.
10:40 a.mBreak with refreshments and fruit in the exhibition 
11:10Ground radar for checking concrete structuresChristophe Loraux, Bridgology SA
Jamshid Lodhi, Northscan AB
11:30 amPortal North Bridge, New JerseyDaniel Nola, Skanska US
12:10 p.mLunch and then coffee in the exhibition area 
1:25 p.mInspirational lecture 
14:25Signature Bridge project, MiamiScott Gombar, Florida Department of Transportation
15:05Bridge Builder of the Year 2024The jury
15:10Coffee break and time to mingle in the exhibition 
15:40Lilla Lidingöbron – architecture for users and contractorsMartin Knight, Knight Architects
16:00Sotrasambandet NorwayMarie Broo, Norconsult
16:25Tingstadtunneln, Renovation in cooperationRobert Engström, Swedish Transport Administration
Kristoffer Ekfeldt, PEab
Hristo Sokolov, Sweco
16:50Closing and award ceremony 
16:58“After Bridge” mingling in the exhibition 
19:00Dinner with entertainment at RondoAdvance registration is required!

New Managing Director at Strukturas GmbH

Strukturas in Germany
Stefan Flachhuber Strukturas GmbH

We’re excited to welcome Stefan Flachhuber new Managing Director at Strukturas GmbH.
With his extensive expertise in bridge construction, Stefan is committed to lead our activities in Germany, Austria and Switzerland.
We’re confident that his service will have a significant positive impact on Strukturas services and customer satisfaction.

To discus bridge building equipment solutions with Stefan please contact:

STRUKTURAS GmbH
Wallbrunnstrasse 24
D-79539 LÖRRACH
Tel.: +47 35 96 82 00
Mail: sfl@strukturas.com

STRUKTURAS

We make it simple!

To see all contacts of agents and branches of Strukturas SEE THIS LINK

Elbebrücke underslung MSS relocation

Strukturas MSS Underslung Elbebrucke
Underslung MSS equipped with tower crane 

Elbebrücke underslung MSS relocation in Germany – solution when the tower crane is fixed on MSS – Movable Scaffolding System and moves together during launching boosts span by span construction productivity and saves money.

Complex and sustainable bridge construction by Implenia
Design and build the new A14 Elbe bridge near Wittenberge.

With a total length of 1,100 meters (land and river bridge together), the new Elbe bridge of the A14 near Wittenberge is the longest bridge of the entire A14 northern extension.
Implenia, together with its partners DSD and Stahlbau Niesky, received a 100% evaluation of the technical criteria for the processing of the two planning packages. On the basis of this assessment and the overall economics, the bid of the bidding consortium, which came second in terms of price, was awarded the contract.

Environmental aspects and sustainability play an important role in the planning and construction of the new bridge. The water levels of the Elbe have to be taken into account during construction.
Henning Schrewe, Head of Civil Engineering Germany at Implenia, commented:
“We are delighted to be able to demonstrate our expertise in the planning and execution of challenging bridge projects with this contract. Winning this important contract also testifies to the consistent implementation of Implenia’s strategy of positioning itself as a partner for the realisation of complex major projects.”

Stukturas AS underslung Movable Scaffolding Systems – MSS is equipped with tower crane on it.
During launching the tower crane moves together with MSS.
This is the main cast in situ construction equipment ensuring high productivity and sustainability of Elbe bridge construction.
Stukturas MSS solution ensures continuous bridge construction when water level increases during river floods.

Technical information:

• Bridge max. span length = 50,00 m
• Max. (MSS) span = 41,20 m / max.
• Max. deck weight = 42,70 ton/m
• Cantilever length = 10,00 m
• Width superstructure = 10,50 m
• Height superstructure = 2,10 m
• Min. horizontal radius = 2350 m
• Crossfall = 2,50%
• Max. longitudinal slope = 0,76 %
• Deck geometry = constant

New agent in Sweden

New agent of Strukturas in Sweden

Strukturas is welcoming a new agent in Sweden – Formmax.

Formmax company is leading supplier to the construction sector of the market’s safest, smartest and most flexible assembly support. 

Formmax was founded in 2012 by Mats Hamrén, Tommy Olsson and Rolf Hillberg. Then they bought the business and the products from Hünnebeck. All three of them have worked for the German company for many years and acquired solid expertise in both material and market. Hünnebeck is known for its good quality and they continue in the same spirit. Therefore, they work continuously with both customers and suppliers to constantly develop both the products and safety. They say that the product range is unique to the market. From 2024 they have a new CEO Johan Kanedal and Formmax became a part of Svevik Industri AB.

The feedback they receive from customers confirms this: “Competent, flexible, reliable”. Today, Formmax has a turnover of over 40 million and is in constant growth. More and more people, even outside Sweden’s borders, are discovering the advantages of their products and services.

Therefore we are happy to welcome Mats Hamren from Formmax to be our agent in Sweden. If you have projects to discuss in this region feel free to contact him:

mob.: 070-535 83 60
email: mats.hamren@formmax.se

Mats_Hamren Sweden agent

STRUKTURAS

We make it simple!

To see all agents and branches of Strukturas SEE THIS LINK

Randselva Bridge – Norway (built with no drawings)

Norway Randselva bridge MSS and FT

Randselva Bridge project in Norway – the 1st world’s longest bridge built with no drawings.

Strukturas is proud to have contributed with one Movable Scaffolding System and two Form Traveller pairs to the construction of the deck of this emblematic bridge.

Nestled in the stunning Norwegian landscape near Hønefoss, this remarkable bridge stands as a testament to a groundbreaking approach that redefines the future of engineering.

Few years have passed since the construction of this architectural marvel began, and throughout this remarkable journey remarkably, NOT A SINGLE PAPER DRAWING WAS USED. In an era where paper drawings have long been the cornerstone of construction, the Randselva Bridge project in Norway represents a journey into uncharted territory.

Contractor – PNC PORR Group

Advanced bridge building equipment, including 2 pairs of Form Travelers (FT) and Movable Scaffolding System (MSS), minimized labor and maximized machinery use.

 

Randselva bridge project in Norway isn’t just a means of crossing a river; it’s a symbol of innovation and a shining example of what’s achievable when visionary design meets cutting-edge technology. 

Here is the story of the Randselva Bridge, where the absence of paper drawings signifies a bold leap into the future of engineering.

KEY QUANTITIES:

CONCRETE: – 17040m3 (Abutments and Foundations 2 600 m3, Piers 2 540 m3, Decks 11 900 m3)

PRESTRESSING STEEL: – 620 ton

MILD STEEL: 2 445 ton

COST: 52 M €

Crafting a Vision. The journey of the Randselva Bridge began with a visionary concept design. Architects and designers embarked on a mission to create not just a functional bridge. However, a structure that seamlessly integrated with its stunning natural surroundings. Moreover the design principles prioritized both form and function as well as setting the stage for a bridge that would be as aesthetically pleasing as it was utilitarian.

The Randselva Bridge project in Norway isn’t merely a means of crossing a river; it’s an architectural masterpiece that enhances the landscape. The designers understood the importance of ensuring that the bridge harmonized with the natural beauty of the Norwegian terrain. This commitment to a holistic approach laid the foundation for a truly unique structure.

BIM & Paperless: The Digital Backbone

The project of Randselva bridge embraced a paperless revolution that changed the landscape of construction. In a departure from conventional practices, the entire project was driven by Building Information Modeling (BIM). Evidently this revolutionary approach allowed the project to progress for four years without a single traditional drawing.

BIM became the digital backbone of the Randselva Bridge, facilitating collaboration, communication, and decision-making. It streamlined information transfer, ensuring that everyone involved, from architects to contractors, had access to real-time data. The result was unparalleled efficiency and precision in construction.

The success of the Randselva Bridge project was a result of close cooperation among professionals from different countries. Leveraging the latest communication and data sharing technologies, they created a bridge that transcended boundaries.

Participants that use the BIM model

Oslo, Norway – BIM model coordination and quality control,

Copenhagen, Denmark – Parametric design, reinforcement,

Tampere, Finland – Parametric design, form and post-tensioning,

Katowice, Poland – Tekla reinforcement.

Bridging the Gap. One of the key factors that contributed to the success of the Randselva Bridge project, was the early involvement of contractors, as well as bridge building equipment suppliers.

Construction Method based on rule: Minimum Labor, Maximum Machinery

The Norway’s Randselva Bridge project proved a paradigm shift in the construction industry by embracing the philosophy of “minimum labor, maximum machinery.” Traditionally, bridge construction heavily relied on manual labor. However, this project recognized the advantages of mechanized construction methods.

Mechanized construction not only saved labor but also mitigated risks, shortened project duration, and improved safety and quality. It revolutionized the way bridges were built, leading to greater efficiency and precision.

STRUKTURAS tailored input with MSS and FT Construction Methods

Challenges and solutions:

  • Long spans for MSS with 3 spans of 60m and first span with 48 m. lead to very optimized MSS design.
  • Not much space for assembly at the first span. STRUKTURAS underslung MSS solution with assembly behind the abutment was used. MSS was launched into the first span.
  • The railroad (with traffic) goes diagonally under the bridge at the second span, which makes it impossible to use a traditional scaffolding.
  • The slope is big at the third and fourth spans with difficult support conditions for traditional scaffolding, nevertheless It was not the restriction for MSS.
  • Pier at axis 4 is 40m high. STRUKTURAS MSS Supporting Bracket system with block outs in the piers for load transfer to piers was used.
  • Small horizontal radius -1050 m. STRUKTURAS MSS includes the formwork which is made to adapt a small horizontal radius. However the launching of the MSS at small horizontal radius is possible due to rotation of the noses.
  • Difficult dismantling after finishing the fourth and last concreting between axis 4/5. The costs for dismantling was kept low by lifting up the MSS on the finished deck and transport back to the abutment for transport.

Outcome:

Revolutionizing Construction: STRUKTURAS spearheaded the transformation of construction methods by introducing advanced MSS and FT technologies. It allowed for a dramatic reduction in labor while maximizing the utilization of machinery.

Maximizing Efficiency: STRUKTURAS delivered 2 pairs of FT and 1 Underslung MSS for 60m spans inclusive assembly, operation and dismantling of the MSS.

Precise Execution: STRUKTURAS involvement ensured precise execution at every stage of construction.

Safety and Quality: STRUKTURAS prioritized safety and quality throughout the planning phase. Their input led to the development of construction methods that not only accelerated the project but also enhanced safety standards and overall quality.

Aquilino Raimundo, construction methods expert at Strukturas as, comments as follows: “The collaborative partnership between the designers, contractor and STRUKTURAS, with a significant focus on advancing MSS and FT construction methods showcased how early contractor involvement can lead to visionary designs that are not only aesthetically pleasing but, as a matter of fact, also constructible, efficient, and  innovative in construction.”

STRUKTURAS Integrated Services On-Site

From Supervision to Cambering. STRUKTURAS involvement extended beyond equipment supply. They offered integrated services on-site, ensuring that every aspect of construction was executed with precision. From supervision and mobilization to assembly, launching, and cambering, STRUKTURAS played a vital role in every stage of construction.

Øyvind Karlsen , comments: “The sum of the complex factors from the geometry of the Randselva bridge made the MSS technology from STRUKTURAS perfect. Our integrated services were crucial in ensuring that the project proceeded smoothly”.

Conclusion

The Randselva Bridge stands as a remarkable testament to what can be achieved with visionary design, cutting-edge technology, and global collaboration converge. With a focus on innovative construction methods, the bridge industry is transitioning towards mechanized construction, enhancing efficiency, safety, and quality.

As we look to the future, the lessons from the Randselva Bridge project inspire us to push the boundaries of engineering and redefine what’s possible in bridge construction. It’s a reminder that the future of engineering is not bound by paper but driven by innovation and collaboration.

Global collaboration and early contractor involvement played a key role in its success.

Randselva was the 20th bridge built in a cooperation between Strukturas as and ARMANDO RITO ENGENHARIA, SA . Our cooperation lasts more than 25 years:

1.       E16 Eggemoen – Åsbygda, Norway | Randselva brigde 2019
2.       IC5 – Murça (IP4) / Nó de Pombal, Portugal | Tua bridge 2010
3.       A32/IC2 – Oliveira de Azeméis / IP1 (S. Lourenço), Portugal | Canedo viaduct 2010
4.       A32/IC2 – Oliveira de Azeméis / IP1 (S. Lourenço), Portugal | Ínsua I bridge 2010
5.       Estrada Catete/Muxima – Província do Bengo, Angola | Kwanza II bridge 2009
6.       Estrada Catete/Muxima – Província do Bengo, Angola | Kwanza bridge 2008
7.       A32/IC2 – Oliveira de Azeméis / IP1 (S. Lourenço), Portugal | Uima II bridge 2008
8.       A41 – Picoto (IC2) / Nó da Ermida (IC25), Portugal | Uima I bridge 2008
9.       A17 – Auto-Estrada Marinha Grande / Mira, Portugal | Mondego bridge 2008
10.  Express motorway Benguela / Lobito – Província de Benguela, Angola | Catumbela bridge 2007
11.  A17 – Auto-Estrada Marinha Grande / Mira, Portugal | Mondego bridge 2006
12.  IP3 – Scut Interior Norte, Portugal | Vila Pouca de Aguiar viaduct 2006
13.  Viaduct Rib Alcobertas, Portugal 2006
14.  A11/IP9 Braga-Guimarães – IP4/A4, Portugal | Vizela viaduct 2005
15.  A10 – Auto-Estrada Bucelas / Carregado, Portugal 2004
16.  A11/IP9 Braga-Guimarães – IP4/A4, Portugal | Vizela viaduct 2004
17.  A7 / IC5 Guimarães-Fafe, Portugal | Nepereira viaduct 2003
18.  A25 / IP5 Mangualde – Guarda, Portugal | V1 and V2 viaducts2003
19.  EN125 Portimão, Portugal | Arade bridge 2001
20.  A2 Southern motorway, Alcácer do Sal Portugal | Sado viaduct 1998

Youtube video

The bellow YouTube video explains in detail the Randselva Bridge design and construction as a Drawing Free Project.

Credits: Ministry of Bridges, Tiago Vieira @ ARMANDO RITO ENGENHARIA, SA, Oystein Ulvestad and Sweco

Follow the author at:
https://www.instagram.com/gabrielnevesmob/

https://www.linkedin.com/in/gabriel-neves-90813626/

First bridge span casted at STAWOLA WOLA in Poland (Overhead MSS)

Stalowa Wola Poland Year 2024 project no. 33650 Client STRABAG
New MSS project – STAWOLA WOLA – POLAND
 
We are thrilled to announce that we have started the Overhead Movable System mobilization in Stalowa Wola where STRABAG is building an extradosed bridge over river San. Construction of the bridge is part of STRABAG construction of DW855 on the Zaklików – Stalowa Wola section.

The extradosed 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.
 
Do you wonder what an extradosed bridge is? Check this: https://en.m.wikipedia.org/wiki/Extradosed_bridge
 
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

Photo credits: Screen shots from YouTube video / Miasto Stalowa Wola

STRUKTURAS
WE MAKE IT SIMPLE!

To see more projects we have completed with movable scaffolding systems (MSS) SEE THIS LINK

If you have a project where you would like us to have a look and make a proposal, feel free to contact our local agent or our head office in Norway. CONTACTS