Fritz Leonhardt

Fritz Leonhardt (12 July 1909 – 30 December 1999) was a German structural engineer who made major contributions to 20th-century bridge engineering, especially in the development of cable-stayed bridges. His book Bridges: Aesthetics and Design is well known throughout the bridge engineering community.

Fritz Leonhardt
Born(1909-07-12)12 July 1909
Stuttgart, Germany
Died30 December 1999(1999-12-30) (aged 90)
NationalityGerman
EducationStuttgart University
Purdue University.
OccupationEngineer
Engineering career
DisciplineStructural engineer
InstitutionsInstitution of Structural Engineers
Practice nameLeonhardt und Andrä
ProjectsCologne-Rodenkirchen Bridge
Stuttgart Television Tower
AwardsWerner von Siemens Ring
Honorary Medal Emil Mörsch
Freyssinet Medal of the FIP
IStructE Gold Medal
Award of Merit in Structural Engineering

Biography

Born in Stuttgart in 1909, Leonhardt studied at Stuttgart University and Purdue University. In 1934 he joined the German Highway Administration, working with Paul Bonatz amongst others. He was appointed at the remarkably young age of 28 as the Chief Engineer for the Cologne-Rodenkirchen Bridge.

In 1954 he formed the consulting firm Leonhardt und Andrä, and from 1958 to 1974 taught the design of reinforced concrete and prestressed concrete at Stuttgart University. He was President of the University from 1967 to 1969.

He received Honorary Doctorates from six universities, honorary membership of several important engineering universities, and won a number of prizes including the Werner von Siemens Ring, the Honorary Medal Emil Mörsch, the Freyssinet Medal of the FIP, and the Gold Medal of the Institution of Structural Engineers. In 1988, he was awarded an Honorary Degree (Doctor of Science) by the University of Bath.[1]

Throughout his career, Leonhardt was as dedicated to research as to design, and his major contributions to bridge engineering technology included:

Major works
First modern TV Tower in Stuttgart

His major structures include the Cologne-Rodenkirchen Bridge, Stuttgart Television Tower, Hamburg's Alster-Schwimmhalle and various cable-stayed bridges in Düsseldorf.

He also worked on the design of several cable-stayed bridges abroad, including the Pasco-Kennewick bridge (1978) in the U.S., and the Helgeland Bridge (1981) in Norway.

Fritz Leonhardt Prize

This prize was established in 1999 on the 90th anniversary of Leonhardt's birth, to recognise outstanding achievements in structural engineering. The first prize was awarded to Michel Virlogeux.[3] Subsequent winners have included Jörg Schlaich (2002), René Walter (2005), and William F. Baker (engineer) (2009).[4]

Bibliography
  • Brücken / Bridges (4th edition), Deutsche Verlags-Anstalt, Stuttgart (Germany), ISBN 3-421-02590-8, 1994 (first published 1982).
  • Ponts/Puentes, Presses polytechniques et universitaires romandes, Lausanne (Switzerland), ISBN 2-88074-099-1, 1986.

Notes
  1. "Honorary Graduates 1989 to present". bath.ac.uk. University of Bath. Retrieved 18 February 2012.
  2. Troyano, Leonardo Fernandez: "Bridge Engineering: A Global Perspective", Thomas Telford Publishing, 2003
  3. Saul, Reiner et al.: "Eminent Structural Engineer: Fritz Leonhardt (1909-1999)", Structural Engineering International 1/2007
  4. "William F. Baker Awarded Fritz Leonhardt Prize For Achievement In Structural Engineering" Archived 2009-09-21 at the Wayback Machine. SOM.com. 2009-07-09. Retrieved on 2009-07-14
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