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Freyssinet head office

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Where we come from

Eugène Freyssinet: an inspirational founder

Freyssinet’s particularly rich history tells the story of a strong and resilient company, founded on the fundamental values of its founder and developed over time to meet the challenges of its time.

Société Technique pour l’Utilisation de la Précontrainte (STUP), now known as Freyssinet, was born in February 1943 out of engineer Eugène Freyssinet’s inventions and his determination, together with Edme Campenon (founder of Campenon Bernard), to develop these inventions.

Exceptional inventiveness

Following the initial inventions, prestressing in 1928, flat jack in 1938 and anchor cones in 1939, a large number of patents were filedby STUP and then Freyssinet International, some of which are groundbreaking: neoprene bearings (1957), reinforcement tensioning and anchoring process and system (1967), cable stay system (1974), Isotension system (1989). In 1981, the number of patentstotalled 231. These inventions were to revolutionize the building industry. Today, they still account for Freyssinet’stechnolog

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STRUCTURAL ENGINEERING FORUM OF INDIA [SEFI]

Dr. N. Subramanian
General Sponsor



Joined: 21 Feb 2008
Posts: 5553
Location: Gaithersburg, MD, U.S.A.
Posted: Wed Jan 29, 2014 3:25 pm    Post subject: Eugène Freyssinet - inventor of prestressed concrete
I found this excellent paper on the Internet and am happy to share it (see Enclosure).


Freyssinet was born in at Objat, Corrèze, France. He worked in the École Nationale des Ponts et Chaussées in Paris, France where he designed several bridges until the First World War intervened. His tutors included Charles Rabut. He served in the French Army from 1904–1907 and again from 1914-1918 as a road engineer.


His most significant early bridge was the three span Pont le Veurdre near Vichy, built in 1911. At the time, the 72.5 m spans were the longest so far constructed. Freyssinet's proposal was for three reinforced concretetrussspans, and was significantly less expensive than the standard masonry arch design. The design used jacks to raise and connect the arches, effectively introducing an element
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Eugène Freyssinet

Biography:
– Freyssinet born in Objat, Corrèze, France
– Worked at École Nationale des Ponts et Chaussées in Paris
– Designed several bridges until WWI
– Served in French Army as road engineer
– Noted for innovative bridge designs and use of reinforced concrete

Major Contributions:
– Introduced concept of prestressed concrete
– Designed significant bridges like Pont le Veurdre and Pont De La Liberation
– Developed forced steam curing for concrete
– Increased record for concrete arch span at St Pierre du Vauvray
– Worked on Plougastel Bridge with detailed study on creep and prestressing

Innovations and Failures:
– Developed new techniques for thin-shell structures
– Designed airship hangars and aircraft hangars
– Built cargo ships using reinforced concrete
– Failed business venture in building prestressed concrete electricity pylons
– Consolidated maritime station of Le Havre using prestressing

Notable Projects:
– Designed first

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