Strukturas News

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

Largest infrastructure construction site in Slovakia for Strukturas MSS

Strukturas overhead MSS in Slovakia R2 Kriváň - Mýtna SO 210

R2 Kriváň – Mýtna SO 210 Largest infrastructure construction site in Slovakia, year 2024

2 Strukturas MSS’es are racing in one project with 14 days typical cycle.

Blue Overhead MSS – Povazska
Grey Overhead MSS – Wisla

The highway project R2 Kriváň – Mýtna.

Contractors:

Contractual construction start: 03/2020

Contractual construction completion: 06/2025

Length of the construction site: 9104 m.

This section will include a 5-kilometer-long bridge overpass in the valley of the Krivánske potok.

This overpass is situated at a height of 15-45 meters above the route of the road I/16, in close proximity to high voltage and existing buildings and this is a largest infrastructure construction site in Slovakia.

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

Cross Tay Link Road bridge built with Form Traveller

Cross Tay Link Road bridge in Scotland Form Traveller

Balanced Cantilever bridge of Cross Tay Link Road bridge in Scotland.

Destiny Bridge, the flagship structure within the Cross Tay Link Road project. Balanced cantilever bridge with 56 cast in situ deck segments.

In this project we use Non-symmetrical casting!

The use of this method corresponds to the initial assembly of only one Form Traveller (FT) and casting of the corresponding segment.
This Form Traveller (FT) is then moved to the end of the cast segment, and the pair’s second Form Traveller (FT) is assembled.
The pair’s second segment is then cast.
Subsequent segments will be cast symmetrically.

Max. Segment Length: 5,6 m
Max. Segment Width: 15,44 m
Max. Segment Weight: 261 Tons with 4,6 m

STRUKTURAS
WE MAKE IT SIMPLE!

Client: Royal BAM Group

Photo credits to: Bridge construction consulting

To see more projects we have completed with form travellers 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

Overhead Form Traveller for the Nydal bridge

The Nydal bridge – Nydalsbrua

Roundabout transition to the cable-stayed bridge.

Overhead Form Traveller with segment length of 8,50m.

The Nydalsbrua is a 183-meter long cable-stayed bridge over the Nidelva in Trondheim, which has replaced the existing Sluppen bridge.

Nydalsbrua is the winner of Norwegian Betongtavlen 2023!

Well done Nydalsbrua project team!

Skanska is the bridge’s contractor, Aas-Jakobsen AS designer and Plan arkitekter AS have designed Nydalsbrua.

The Statens vegvesen – Norwegian Public Roads Administration was the client.

Photo credits to Grzegorz Gucwa from Skanska team.

To see more projects we have completed with form travellers 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

Span by span construction of the new TB Heubach bridge

Strukturas MSS Heubach new bridge construction

The Heubach valley bridge consists of two parallel structures, which were demolished and rebuilt in two construction phases.

Demolition of the old bridge and the construction of the new Heubach bridge was awarded by Die Autobahn GmbH des Bundes to the contractor Implenia.

Movable Scaffolding System ensures the minimal intervention to existing infrastructure.
Using MSS for new construction allows the existing highway and the road bellow to remain open throughout most of the construction period.

After finished demolition the same MSS is also used for the construction of the new TT section decks. As a result this approach saves time and resources, by making the construction process more efficient.

The MSS installation works was carried out by professional site team from Strukturas as.

Highlights & Facts:

Max Span: 48,0m
Max MSS Span: 39,1m
Weight of the concrete bridge: Approx 426 KN/m
Width Of Bridge Slab: 18.3m
Min. Hor. Radius: R= 2500m
Max Crossfall: 4.53%
Max Long Slope: 0,63%
Deflection of MSS: MAX L/400

The replacing of old bridge superstructures with MSS is an effective and safe technical solution.

Here is the link to the blog post about the demolition of the same bridge using the same MSS

See the video below and do not hesitate if you wish to consult about your bridge!

STRUKTURAS

WE MAKE IT SIMPLE!

First segments of balanced cantilever bridge are casted at Gostyn Bypass in Poland

We are thrilled to share that first segments of balanced cantilever bridge are casted at Gostyn Bypass in Poland.

On behalf of Strukturas project team leaded by Maciej Masłowski we are sending our congats to Gostyn Bypass MGP/PZDd-14 bridge reinforced concrete team leaded by Alicja Kosz-Koszewska from G&M Sp. z o.o.
The consortium of MIRBUD SA and KOBYLARNIA S.A. is the General Contractor.

Strukturas has a great partner Hünnebeck by BrandSafway Poland team, leaded by Daniel Hutnik.

It’s good to feel a strong support and see great performance in designing and supplying formwork for bridge foundations, piers and hammerheads.

Information about the Form Traveller delivered to this project:
Max. Segment Length: 5,00 meters
Max. Segment Width: 11.78 meters
Max. Segment Weight: 175 tons with 5.0 meters
Max. Longitudinal Slope: 0,7%
Max. Crossfall: 2,0%

Facts:
Assembly of FT is done by Strukturas site team
Hammerhead was asymmetrical with temporary supports on one side – asymmetric FT start
Concreting segments and launching FT is symmetrical on each pendulum
Strukturas is using Hunnebeck H20 wooden beams for external FT formwork.
Besides FT steel structure Strukturas is supplying the client with all wooden parts too

STRUKTURAS
WE MAKE IT SIMPLE!

If you would like to learn more about using form travellers for your bridge, send us an email la@strukturas.no and we will contact you as soon as possible!

Strukturas Overhead MSS for Bridge SO 203

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.

Highlights & 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.

The story of legendary MSS Drammensvogna

The story of legendary MSS Drammensvogna – 50 years in action

Last week we signed one more MSS redesign contract with Skanska, who owns legendary MSS Drammensvogna.

This time it shall be used at bridge Vadløkkjbrua on the E6 south of Trondheim, Norway.

Vadløkkjbrua will be the 19th project made with this MSS!

MSS Drammensvogna, one of the first MSS was builded in 1973 for Norway the motorway bridge in Drammen, Norway.

The E18 motorway bridge in Drammen is a four-lane girder bridge on the E-18 that crosses the outlet of the Drammen river between Brakerøya and Bangeløkka. The bridge has free spans of up to 60 meters and a sailing height of up to 12 metres.

Until now it is the longest bridge in Norway – 1,890 meters!

Revolutionary MSS technology has proven its productivity.

The contractor for the bridge was Ingeniør Thor Furuholmen A/S, one of the largest companies in Norway at the time. They later merged with Ing. F. Selmer A/S to Selmer – Furuholmen AS, which today is Skanska Norge AS.

In collaboration with the consulting company Taugbøl & Øverland A/S (now COWI), the MSS was designed and put into production.

Construction work began in the autumn of 1973. The span by span casting of the bridge deck was carried out with a newly developed type of MSS, 131 meters long (800 tonnes weight), which enabled full casting at a speed of up to 100 meters of bridge per 14 days. Bridge deck has been casted 4 weeks before end of construction schedule.

Since that time the MSS Drammensvogna has been redesigned for many bridge projects in Nordic countries as underslung and overhead MSS.

On the engineering side, competence on the equipment has been maintained internally at Skanska, and there has also been good cooperation with for the consulting with us – company Strukturas as.

All the projects accomplished with the Drammensvogna MSS:

1. E18 Drammen Drammensbrua 1973-75

2. E39 Kristiansand Gartnerløkka bridge 1978

3. Stockholm Johanneshov Bridge 1981-83

4. Strømstad Skee bridge 1986

5. E6 Oslo Lodalen bridges 1986-87

6. Sweden Obbola bridge 1988-89

7. Molde Bolsøy Bridge 1990

8. Skien Menstad bridge 1990-91

9. Askøy Askøy Bridge 1990

10. Storeklubben, Askøy Storeklubben viaduct 1989

11. Troms Dyrøy Bridge 1994

12. Porsgrunn Frednesbrua 1994-95

13. Gardermobanen Mork/Nessa/Kvisldalen 1995-96

14. Sykkylkven Sykkylvsbrua 1999-2000

15. E18 Drammen Parallel motorway bridge 2003-2004

16. E16 Bagn Bagn bridge 2017

17. Nordøyvegen Lauke and Hamnaskjersund bridge 2020-21

18. E16 Bjørum-Skaret Isielva bridges 2022-24

19. Vadløkkjbrua on the E6 south of Trondheim 2024-25

Founder of Strukturas Tore Gjølme has followed this MSS since the beginning and will participate also at the 19th project for Drammensvogna.

He is 78 years old and still going strong!

Credits to Statens vegvesen – Norwegian Public Roads Administration

Link to article

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Underslung Form Traveller Ariari Puerto Lleras, Meta, Colombia

Underslung Form Traveller Ariari – Puerto Lleras, Meta, Colombia

Connecting the downtown area of Puerto Lleras with the existing Vista Hermosa county road, known as “Trocha Siete” with a bridge over the Ariari River.
It is a cable-stayed bridge with a length of 270 m, made up of spans of 70 m, 135 m and 70 m and a deck width of 11.6 m. Bridge supported by two pylons approximately 52 m high and 20 m wide at the base.
The superstructure is made up of a concrete slab that is supported on longitudinal and transverse by structural steel beams.
Balanced cantilever construction method of the deck – Cast-In-Situ with Form Travellers.

The Underslung Form Traveller solution can be adapted to different types of bridge decks, such as arch bridges and cable-stayed bridges, leaving enough room to assemble the temporary or final cable stays, and allowing easy launchback to the initial assembly position.
The external formwork of this type of Form Traveller is supported by the main structure, leaving enough room to install the pre-assembled rebar cage. When the rebar cage is pre-assembled, the Strukturas Underslung Form Traveller is the perfect choice.

Highlighs & Facts:

Segment Length: 7,75m
Length of Hammerhead: 19,9m
MAX Segment Weight: 132,7ton
MAX Width Superstructure: 12,8m
Min.Hor.Radius: R=1195m
Max Long Slope: 7,0%
Crossfall: 0%
Deflection of Main Beam: L/400
Critical Wind Speed During Launching: 20,0 m/sec
Critical Wind Speed During Concreting: 32,0 m/sec
Client: CONCREARMADO LTDA.
Project Location: Puerto Lleras, Meta, Colombia

STRUKTURAS
WE MAKE IT SIMPLE !

See the video below and do not hesitate if you wish to consult about your bridge!

TB Heubach Bridge demolition

Implenia, a leading construction services company, decided to use an Strukturas Movable Scaffolding System (MSS) Underslung for the demolition of existing concrete decks on the TB Heubach Bridge in Germany.

Moreover this same MSS is also used for the construction of the bridge’s new TT section decks.

The Heubach valley bridge consists of two parallel structures, which will be demolished and rebuilt in two construction phases.
Bridge info:
Year of construction of existing building: 1968
Length: 184 meters
Width: 16.5+16.5 meters
Bridge spans: 30,6 + 37,5 + 45 + 37,5 + 30,6 meters
Max. height above ground: 18 meters

Demolition of the old bridge and the construction of the new Heubach bridge was awarded by Die Autobahn GmbH des Bundes.

MSS at assembling final stage

Deck demolition

The Strukturas MSS solution is particularly innovative because it allows the conversion of the MSS formwork from a box section, which is used during the demolition phase, to a TT section, which is used during the construction of the new bridge decks. This approach saves time and resources, making the construction process more efficient.

The challenging conditions on the job site made the assembly of the MSS particularly demanding, and the Strukturas MSS assembly team had to plan and execute the operation to the best of their ability.

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.
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.

MSS general cross section view when used to demolish the existing concrete decks.

Highlights & Facts:
Max Span: 45,0m
Max MSS Span: 45,0m
Weight of the concrete bridge: Approx 250 KN/m
Width Of Bridge Slab: 16.5m
Min. Hor. Radius: R= 2500m
Max Crossfall: 2.1%
Max Long Slope: 0,63%
Deflection of MSS: MAX L/400

The demolition of old bridge structures with MSS is an effective and safe solution for many bridges.

See the video below and do not hesitate if you wish to consult about your bridge!

STRUKTURAS

WE MAKE IT SIMPLE!

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

Largest infrastructure construction site in Slovakia for Strukturas MSS

Cross Tay Link Road bridge built with Form Traveller

Overhead Form Traveller for the Nydal bridge

Span by span construction of the new TB Heubach bridge

First segments of balanced cantilever bridge are casted at Gostyn Bypass in Poland

Strukturas Overhead MSS for Bridge SO 203

Highlights & Facts:

The story of legendary MSS Drammensvogna

Underslung Form Traveller Ariari Puerto Lleras, Meta, Colombia

TB Heubach Bridge demolition

STRUKTURAS - WE MAKE IT SIMPLE !

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