Main use cases
Prestressed structures
Freyssinet bar systems are widely used to create prestressed structures, especially for repair and strengthening.
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Bridges, dams
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Buildings
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Civil engineering structures
Blisters
When fitting additional prestressing tendons to existing structures, sheaves and deviation points need to be created. The anchoring system for the ends of the tendons is fitted to the sheaves, while the main runs are guided through the deviation points. In this case, Freyssinet prestressing bars are used to fix the sheaves to the existing structure that needs strengthening by generating a transverse nailing force that creates the necessary friction between each sheaf and the structure.
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Bridges decks
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Beams
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Slabs
Anchoring structural elements
To create a stable and long-lasting joint between structural elements, such as securing steel and concrete components, they can simply be tightened together with prestressing. The Freyssinet system ensures a long-term compression joint.
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Wind turbines
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Towers
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Antennas
Assembling precast elements
Whether for temporary or permanent applications, Freyssinet bar system offers a simple and effective solution for assembling concrete elements with prestressing bars.
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Viaducts built with launching gantries
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Floating caissons, bridge piers, silos
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3D-Printed buildings
Moving heavy loads
The Freyssinet system and its accessories are easy to use and deliver superior strength and reliability for moving heavy loads. The system transfers the force that is required to move the structure using extremely light equipment.
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Sliding, pushing
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Hoisting
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Driving
Connection with a foundation
Micropiles and post-tensioning bars can be combined to create a simple and effective foundation for an existing or precast structure. The prestressing bars create a friction joint between the structure and the sole plate, which is built on micropiles, without the need for a complex and dense arrangement of reinforcement.
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Bridge piers
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Columns
Fixing launching noses
Fixing a launching nose to a deck requires the use of high prestressing forces in a confined space. Designers are often faced with the problem of how to arrange the bars in the available space. The wide range of possibilities offered by Freyssinet bar systems makes this process much easier, since they improve the forces applied to each assembly while reducing the number of bars.
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Incrementally launched bridges
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De-launching
Carriage form travelers and launching gantries
When it comes to temporarily fixing a carriage form traveler or launching gantry, a quick, easy and reliable solution is needed that can be used over and over again. The Freyssinet system ticks all the boxes, which explains why its use has become widespread.
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Construction of bridge decks
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Decks
Fixing brackets
The principle of transferring the load from a bracket to a structure by friction can be achieved using prestressing bars. Controlling the force applied during the process is essential for the performance of the joint and the safety of the structure.
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Jacking structures
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Widening pier caps and decks
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Balconies
Prestressed structures
Freyssinet bar systems are widely used to create prestressed structures, especially for repair and strengthening.
-
Bridges, dams
-
Buildings
-
Civil engineering structures
Blisters
When fitting additional prestressing tendons to existing structures, sheaves and deviation points need to be created. The anchoring system for the ends of the tendons is fitted to the sheaves, while the main runs are guided through the deviation points. In this case, Freyssinet prestressing bars are used to fix the sheaves to the existing structure that needs strengthening by generating a transverse nailing force that creates the necessary friction between each sheaf and the structure.
-
Bridges decks
-
Beams
-
Slabs
Anchoring structural elements
To create a stable and long-lasting joint between structural elements, such as securing steel and concrete components, they can simply be tightened together with prestressing. The Freyssinet system ensures a long-term compression joint.
-
Wind turbines
-
Towers
-
Antennas
Assembling precast elements
Whether for temporary or permanent applications, Freyssinet bar system offers a simple and effective solution for assembling concrete elements with prestressing bars.
-
Viaducts built with launching gantries
-
Floating caissons, bridge piers, silos
-
3D-Printed buildings
Moving heavy loads
The Freyssinet system and its accessories are easy to use and deliver superior strength and reliability for moving heavy loads. The system transfers the force that is required to move the structure using extremely light equipment.
-
Sliding, pushing
-
Hoisting
-
Driving
Connection with a foundation
Micropiles and post-tensioning bars can be combined to create a simple and effective foundation for an existing or precast structure. The prestressing bars create a friction joint between the structure and the sole plate, which is built on micropiles, without the need for a complex and dense arrangement of reinforcement.
-
Bridge piers
-
Columns
Fixing launching noses
Fixing a launching nose to a deck requires the use of high prestressing forces in a confined space. Designers are often faced with the problem of how to arrange the bars in the available space. The wide range of possibilities offered by Freyssinet bar systems makes this process much easier, since they improve the forces applied to each assembly while reducing the number of bars.
-
Incrementally launched bridges
-
De-launching
Carriage form travelers and launching gantries
When it comes to temporarily fixing a carriage form traveler or launching gantry, a quick, easy and reliable solution is needed that can be used over and over again. The Freyssinet system ticks all the boxes, which explains why its use has become widespread.
-
Construction of bridge decks
-
Decks
Fixing brackets
The principle of transferring the load from a bracket to a structure by friction can be achieved using prestressing bars. Controlling the force applied during the process is essential for the performance of the joint and the safety of the structure.
-
Jacking structures
-
Widening pier caps and decks
-
Balconies
Find out more in our case studies
Build
Hong Kong
TMCLK Link in Hong-Kong: balanced cantilever erection
As part of the design-build project for a set of precast segmental bridges, choice of the erection method was key to its achievement. Opting for the balanced cantilever erection with launching gantry made the difference.
As part of the design-build project for a set of precast segmental bridges, choice of the erection method was key to its achievement. Opting for the balanced cantilever erection with launching gantry made the difference.
West Gate Tunnel project, Australia
West Gate Tunnel project, Australia
Hebron oil platform, Canada
LGV Tanger-Kenitra Lahlou viaduc, Morocco
Ischigualasto bridge, Argentina
Orly airport bridge, France
RER station under the CNIT, Paris area, France
Tuen Mun–Chek Lap Kok Link, Hong-Kong
North West rail link, Australia | Copyright: F. Courbet
Kherrata gorges, Algeria
Our post-tensioning systems
Post-tensioning strand systems for buildings
For over 50 years Freyssinet has been involved in the construction of buildings, optimising their structure using the benefits of post-tensioned slab technology. Our expertise and know-how contributes to the realisation of ever more functional and durable structures.
Post-tensioning strand systems for civil engineering structures
Our post-tensioning systems are CE marked, which ensures product performance, quality control and state-of-the-art installation methods.
Post-tensioning bar systems
Prestressing bars are a simple and efficient solution for securing and tying down structural elements together or transferring compressive forces to generate the necessary friction between the surfaces in contact.
Post-tensioning systems
As an undisputed pioneer, Freyssinet offers a complete range of strand and bar post-tensioning systems (PT systems), covering all possible applications in the civil engineering and building sectors. Our in-house teams ensure professional execution of PT work, handling all stages of design, installation, stressing and grouting.
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