Structurae

DYWIDAG-Systems International (DSI) is a global market leader in the development and application of high-quality systems for the construction and underground markets. The product range for the construction industry includes DYWIDAG Post-Tensioning and DYWIDAG Geotechnical Systems as well as a wide variety of products defined as “Concrete Accessories”.

From the time the first DYWIDAG Post-Tensioning System was installed into the Alsleben arch bridge in Germany in 1927, DSI has continuously improved its systems, always keeping up with the growing demand for innovative construction technology. Today, DYWIDAG Post-Tensioning Systems are renowned worldwide for reliability and performance. DSI is the global market leader for Post-Tensioning Systems.

DSI’s Geotechnical product range includes GEWI®-Piles, DYWI® Drill Hollow Bar Anchors, ground and rock anchors, soil nails and micro piles. These systems are mainly used for slope stabilization, excavations and for foundations. Superior corrosion protection methods and excellent adaptability of system components and equipment ensure highly reliable and efficient applications of all DYWIDAG Geotechnical Systems.

DYWIDAG Post-Tensioning Systems: known worldwide for quality and flexibility

DSI develops, produces and supplies Post-Tensioning Systems to meet the exacting demands of global markets. DYWIDAG and SUSPA Post-Tensioning Systems are characterized by their superior load-carrying performance, durability and simple design. They ensure safe, efficient and economic use in prestressed concrete structures. For many decades, DYWIDAG systems have been famous for their extraordinary versatility and reliability.

To ensure the highest quality standards, DSI’s systems are certified according to DIN ISO 9001 and comply with international specifications and recommendations (ASTM, AASHTO, BS, Eurocode, DIN, Austrian Code, SIA, FIP, fib, EOTA, etc.).

DSI’s business philosophy is based on the establishment and cultivation of a trustworthy business relationship with its clients. Our customers are always at the centre of our actions - in accordance with our slogan: Local Presence-Global Competence.

Products, Services & Application Reports

GEWI ^® Piles

DYNA Bond ^® Anchorages

Because the DYNA Bond^® anchorage can be filled either with cement or epoxy grout, it has excellent fatigue resistance and is protected a ...

DYNA Grip ^® Anchorages

Because the DYNA Grip ^® Anchorage is without bond, load monitoring at any time is easy and individual strands in any cable can be replac ...

DYWI^® Drill Hollow Bar Anchors

DYWIDAG Bar Post-Tensioning System

DYWIDAG Bonded Post-Tensioning Systems Using Strands

DYWIDAG Bonded Post-Tensioning Systems Using Strands have been used for decades: in bridge construction, the construction of reservoirs and for man ...

DYWIDAG External Tendons

DYWIDAG External Tendons are used during the construction of large bridges, especially in the case of box girder bridges. Another field of applicat ...

DYWIDAG Soil Nails and Rock Bolts

DYWIDAG Strand Anchors

DYWIDAG Strand Anchors are used for a wide variety of geotechnical applications including but not limited to temporary and permanent applications a ...

DYWIDAG THREADBAR ^® Anchors

DYWIDAG Bar Anchor Systems are used in a wide variety of geotechnical applications. The principal fields of application include the stabilization o ...

DYWIDAG Unbonded Monostrand System

DYWIDAG Unbonded Monostrand Systems have been utilized flexibly for decades. They are primarily used in the post-tensioning of flat slabs in indust ...

References and Selected Works

17th Street Causeway Bridge

Anilio Tunnel

Debis Tower

Dodoni Tunnel

Eden Project

Grand Palais

Structures & Projects

Participation in the following structures and projects:

• 17th Street Causeway Bridge
• 6th of October Bridge (1996)
• A 43 Motorway (France) (2000)
• AirTrain JFK (2003)
• Algiers Metro Line 1 (2009)
• Anilio Tunnel (2003)
• Apollo Bridge (2005)
• Arthur DiTommaso Bridge (2003)
• Ayalon Bridge
• Baglihar Dam (2004)
• Bal Haf LNG Tanks (2008)
• Bejici Bridge
• Blautalbrücke (2002)
• Bolognesi Bridge (2002)
• Bridge BL 1 (2003)
• Bridge BL 2 (2003)
• Bridge BR1G (2003)
• Bridge BR1K (2003)
• Calicanto Bridge
• Caruachi Dam (2006)
• Central Artery/Tunnel Project (2004)
• Chamera Dam
• Chomutov Railroad Bridge (2002)
• Chomutov Road Bridge (2004)
• Cirialo Bridge
• Clinker Silos
• Crna Draga Bridge
• D 5 Radbuza River Bridge (2000)
• Daniel Alcides Carrion Bridge
• Debis Tower (1997)
• Deutsche Post AG (2002)
• Dodoni Tunnel
• Doosti Dam (2005)
• Dugi Vrh Bridge
• Eden Project (2001)
• EPC Marine Dock
• Evans Crary Sr. Bridge
• Forschungsneutronenquelle Heinz-Maier-Leibnitz (FRM II)
• Fradinina Bridge
• Franjo Tudjman Bridge (2001)
• Gajo Arch Bridge (2008)
• Ganter Bridge (1980)
• Garcon Point Bridge (1999)
• Giggijoch Parking Garage
• Grand Palais (1900)
• Guduca Bridge (2005)
• Hall Cable-Stayed Overpass (1998)
• Hodos-Kotormany Railroad Bridge (2001)
• Homeland Bridge (2006)
• Ibi Gawa Bridge (2001)
• Jonoob LPG Tanks (2005)
• Jurong Water Reclamation Plant Digester Tanks (2003)
• Kamacnik Bridge (2003)
• Karoon IV Dam (2009)
• Karoon-3 Dam (2004)
• Kingdom Trade Center (2002)
• Kiso Gawa Bridge (2001)
• Koinumarukawa Bridge
• Komati River Bridge
• Korea Gas LNG Tanks No. 1, 2 & 3
• Korea Gas LNG Tanks No. 4 & 5
• Korea Gas LNG Tanks No. 6 & 7
• Krka River Bridge (2004)
• Krystallopigi Bridge (2003)
• Kutai Kertanegara Suspension Bridge (2002)
• Lane Avenue Bridge (2004)
• Large Hadron Collider (LHC) (2008)
• Lauertalbrücke (2004)
• Lefkopetra-Veria-Kouloura Tunnel (2006)
• Limburg Tunnel
• Lipon Risteyssilta (2001)
• Mariansky Bridge (1998)
• Marienbrücke (2004)
• Merowe Dam (2009)
• Middle Marsyangdi Hydroelectric Power Plant (2008)
• Milad Tower (2007)
• Millau Viaduct (2004)
• Mura River Bridge (2003)
• Nakanishi Viaduct
• Namma Metro Green Line (2012)
• Nelson Mandela Bridge (2003)
• New Copenhagen Opera House (2008)
• Niederrheinbrücke (2009)
• Norddeutsche Landesbank (2002)
• North Downs Tunnel (2002)
• Oupia Wind Turbines (2004)
• Parking Garage at Wasserburg (2001)
• Pipeline Corridor Bridge (2001)
• Podgrede Bridge
• Pont Charles-Hochart (1997)
• Porte de Paris Overpass
• Qalhat LNG Tanks (1999)
• Qatar Gas LNG Tanks 1, 2 & 3 (2007)
• Rama III Bridge (1999)
• Ras Laffan LNG Tanks 4 & 5 (2005)
• Rodine Glavice Bridge
• Roka Bridge
• Rosario-Victoria Bridge (2002)
• Rovanjska Bridge
• Ruzyné Bridge
• Scardon Viaduct (1997)
• Second Mactan-Mandaue Bridge
• Shikari Bridge (2000)
• Shimoda Bridge
• Sicuani Bridge
• Skye Bridge (1995)
• Staples Center (1999)
• Steinmetz Flyover (2008)
• Suez Canal Bridge (1999)
• Tobiuo Bridge (2003)
• Tulskaya Bridge (2001)
• Vasco da Gama Bridge (1998)
• Vecchio Bridge (1999)
• Viaduc de la ravine des Trois-Bassins (2008)
• Viaduct from Airport Road to Tampines Avenue 10 (2003)
• Volonne Bridge (2006)
• Votonosi Bridge (2004)
• Xiao Lang Di Dam
• Zukci Bridge