Bernhard Fritz (engineer)

from Wikipedia, the free encyclopedia

Bernhard Fritz (born March 7, 1907 in Mannheim ; † August 16, 1980 in Karlsruhe ) was a German civil engineer.

biography

Bernhard Fritz went to school in Villingen and Karlsruhe and studied civil engineering at the TH Karlsruhe from 1925 to 1929 . He then worked as an assistant at the chair for bridge construction and structural engineering with Ernst Gaber , where he received his doctorate in 1933 ( theory and calculation of full-walled arch girders taking into account the influence of system deformation ). From 1933 he was a structural engineer and structural engineer at Dortmund Union Brückenbau AG. In 1936 he was back at the TH Karlsruhe, completed his habilitation in 1937 ( Additional Tensions in Road Grating ), was a lecturer in structural engineering and bridge construction and in 1939 he was an associate professor and in 1953 a full professor of structural engineering. In 1960 he founded the Institute for Structural Analysis and Measurement Technology, which he headed until his retirement in 1973.

With the implementation of large-span concrete arch bridges in the 1930s, their calculation also had to be reconsidered. In his dissertation, Fritz succeeded in synthesizing the elastic arc theory and the second order theory, which he also tested through experiments.

He developed simplified calculation methods for composite girder bridges , examined the friction losses during subsequent prestressing with long tendons (Fritz observed a settling effect or slack effect in a wide-span bridge in the Alb and followed up on this in experiments and theoretically) and prestressing in wide-span steel pipe structures. In his institute he developed measuring techniques for buildings and took on orders for tests and tests on prestressed concrete bridges and composite bridges, dams and nuclear power plants (e.g. testing Rhine bridge Speyer, Jungbusch bridge Mannheim, nuclear research reactor Karlsruhe).

He was married to Eva Lindner and had a son with her. In his spare time he played the violin and in 1967 he was one of the founders of the Collegium Musicum of the TH Karlsruhe and its first concertmaster.

literature

  • Klaus Stiglat : Civil engineers and their work , Ernst and Son 2004, p. 153
  • Otto Steinhardt: Professor Bernhard Fritz 60 Years , The Civil Engineer, Volume 42, 1967, p. 162

Fonts

  • Theory and calculation of full-walled arched supports taking into account the influence of system deformation., Springer 1934
  • Calculation of circular vaults - Ready-to-use tables for the static calculation of vaults with a circular axis, Berlin 1940
  • Simplified calculation method for steel girders with a concrete pressure plate taking into account creep and shrinkage, Bautechnik, Volume 27, 1950, No. 2, pp. 37-42
  • Suggestions for the calculation of continuous beams in composite construction. A. Composite solid wall girder. B. Verbund-Truss, Civil Engineer, Volume 25, No. 6, 1950, pp. 271-277.
  • The chair for structural engineering and technical mechanics, in: Friedrich Raab (ed.): The technical university Fridericiana Karlsruhe - Festschrift for the 125th anniversary, Karlsruhe 1950, p. 219
  • Composite girders - calculation method for bridge building practice, Berlin: Springer 1961.

Web links

Individual evidence

  1. ^ Karl-Eugen Kurrer : The History of the Theory of Structures. Searching for Equilibrium . Berlin: Ernst & Sohn 2018, p. 195, ISBN 978-3-433-03229-9 .
  2. ↑ Autobiography of his assistant Heinrich Bechert in Klaus Stiglat, Civil Engineers and Her Work, Berlin: Ernst & Sohn 2004, pp. 71–77, ISBN 3-433-01665-8
personal data
SURNAME Fritz, Bernhard
BRIEF DESCRIPTION German civil engineer
DATE OF BIRTH March 7, 1907
PLACE OF BIRTH Mannheim
DATE OF DEATH August 16, 1980
Place of death Karlsruhe