Friedrich Engesser

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Friedrich Engesser (born February 12, 1848 in Weinheim an der Bergstrasse, † August 29, 1931 in Achern ) was a German civil engineer.

biography

Engesser attended the Bender private institute in Weinheim and the grammar school in Mannheim and studied at the TH Karlsruhe (then polytechnic) from 1865 to 1869 with the completion of the Baden state examination. He then worked as an engineer for the Black Forest Railway (from 1874 in the central management in Karlsruhe) and was then central inspector of the Baden State Railway in Karlsruhe. In 1876 he became a first-class engineer, in 1884 a railway construction inspector and in 1885 a state railway construction officer. In 1885 he became professor of statics, bridge construction and railway engineering at the newly renamed Technical University in Karlsruhe. He held his chair until 1915, but taught until 1923. In 1910 he became a Privy Councilor. His successor at the chair was Wilhelm Schachenmeier .

He dealt primarily with structural engineering and structural engineering, for example in timber construction, steel construction, solid construction, railways, hydraulic engineering, strength theory and the properties of building materials. He also developed an earth pressure theory in foundation engineering. He worked on statically indeterminate frameworks (additional forces, secondary stresses) and the buckling strength of bars.

After Karl-Eugen Kurrer , he formed the “triumvirate of classical structural engineering” with Heinrich Müller-Breslau and Christian Otto Mohr and “contributed like no other to the structural foundation of steel construction”.

He was an honorary doctor of the TH Braunschweig . A street on the campus of the University of Karlsruhe was named after him. Friedrich Engesser was an honorary member of the Tulla fraternity in Karlsruhe . On the occasion of Engesser's 100th birthday, Otto Steinhardt extensively paid tribute to his scientific and technical life's work.

He was considered a conscientious, thorough, and tireless teacher. Heinrich Leitz and Karl Kriemler are among his numerous students .

Fonts (selection)

  • The calculation of frame beams. Ernst and Son, Berlin 1913, 2nd edition 1919.
  • The additional forces and secondary tensions of iron truss bridges. I. The additional forces , Julius Springer, Berlin 1892 Internet Archive
  • The additional forces and secondary tensions of iron truss bridges. II. The secondary tensions , Julius Springer, Berlin 1893 Internet Archive
  • Theory and calculation of arched trusses without a vertex joint. Springer, Berlin 1880.
  • About the buckling strength of straight bars , magazine of the architects and engineers in Hanover, 1889, p. 455
  • About the calculation of the buckling strength stressed bars made of welding iron and fluoro iron , Journal of the Austrian Association of Engineers and Architects, 1893, p. 506.
  • About the determination of the buckling strength of structured rods , Österreichische Ingenieur- und Architekten-Zeitschrift , issue 47, 1913

literature

Web links

Individual evidence

  1. Engesser: On the theory of the subsoil. Centralblatt der Bauverwaltung, Berlin, 1893, pp. 306–308; Geometric earth pressure theory. Z. Bauwesen, Volume 30, 1880, p. 189; About the earth pressure against inner retaining walls. Deutsche Bauzeitung, Volume 16, 1882, pp. 91–93.
  2. Holdings B2 - files of honorary doctors - Engesser, Friedrich (1848–1931) ( Memento from June 26, 2013 in the Internet Archive ) on biblio.tu-bs.de (PDF; 214 kB)
  3. Karlsruhe Burschenschaft Tulla 1893-1993 . Karlsruhe 1993 p. 29
  4. Otto Steinhardt: Friedrich Engesser . CF Müller, Karlsruhe 1949.