Reinhold Krohn

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Reinhold Krohn, around 1912

Reinhold Krohn (born November 25, 1852 in Hamburg , † June 29, 1932 in Danzig - Langfuhr ; full name: Reinhold Friedrich Karl Krohn ) was a German civil engineer and university professor .

Life

Reinhold Krohn studied civil engineering at the Polytechnic Karlsruhe and the Polytechnic Aachen from 1869 to 1873 . In Karlsruhe he joined the Landsmannschaft Frisa , later the Corps Frisia , in Aachen the newly founded Landsmannschaft Teutonia , later the Corps Teutonia . After completing his studies, he initially took on various positions at authorities and construction offices in Hamburg before returning to the Aachen University as an assistant in 1876 . In 1878 he became a private lecturer and in 1881 professor for statics and read in particular about the theory of statically indeterminate frameworks , movable bridges and graphic statics. From 1884 to 1886 he gained further practical professional experience as a bridge construction engineer in the USA, which was then leading in bridge construction. In 1887 he returned to Germany and worked until 1904 as chief engineer and later as head of the Sterkrade bridge construction company at Gutehoffnungshütte , which under his leadership developed into the largest bridge construction company in Germany and built numerous bridges at home and abroad. In 1904 he was one of the founding members of the Association of German Bridge and Iron Construction Factories , which was renamed the German Iron Construction Association in 1913 and the German Steel Construction Association in 1928 .

In the same year, 1904, when the Technical University of Gdansk was founded, he was appointed professor for statics and bridge construction at the new university, where he taught and researched until his retirement . From 1907 to 1909 he was rector of the Technical University of Gdansk. Technically, he and Georg Christoph Mehrtens propagated the use of flux iron instead of welding iron in steel construction . Scientifically, he established the principle of the reciprocity of displacements in the calculation of bridge structures and further developed the theoretical principles of modern bridge construction.

Buildings

Awards

  • 1898: Awarded the Prussian Order of the Crown, 3rd class
  • 1904: Appointment to the secret government council
  • 1906: Awarded an honorary doctorate from RWTH Aachen University (as Dr.-Ing. E. h.)
  • 1908: Appointment as a member of the Prussian mansion for life
  • 1909: Awarded the Prussian Order of the Red Eagle, 3rd class with ribbon
  • 1913: Awarded the Prussian Order of the Crown, 2nd class
  • 1927: Appointment as an honorary member of the German Iron Construction Association, later the German Steel Construction Association

Fonts

  • Results from the theory of bridge building and its application.
    • Volume 1: Girder Bridges. 1879.
    • Volume 2: Arched Bridges. 1883.
  • The principle of the reciprocity of the displacements and application of the same for the calculation of indefinite trusses. 1884.
  • Methods of examining welds and weldability. 1906.
  • Progress in bridge building. 1907.
  • About the engineering profession. 1907.
  • Wooden bridges. 1910.
  • Kink resistance. 1923.

literature

  • Privy Councilor Reinhold Krohn on his 60th birthday. In: Bauwelt , 3rd year 1912, No. 50 (from December 12, 1912), pp. 23–24.
  • Karl-Eugen Kurrer : The History of the Theory of Structures. Searching for Equilibrium. Ernst & Sohn , Berlin 2018, ISBN 978-3-433-03229-9 , p. 94, p. 586 and p. 1019 (biography).

Web links

Individual evidence

  1. ↑ Bernd-A. Kahe, Alfred Priemeier, Ernst Battmer, Nils Höpken: Corps lists of the Braunschweig Seniors' Convent in the WSC, Teutonia, No. 4. Braunschweig 1990.
  2. ↑ Zentralblatt der Bauverwaltung , Volume 24, 1904, No. 51 (from June 25, 1904) ( online ), p. 321 (section official communications ).
  3. ^ The competition for a permanent bridge over the Rhine near Bonn. In: Centralblatt der Bauverwaltung , Volume 15, 1895, No. 5 (from February 2, 1895) ( online ), pp. 49–51.
  4. ↑ The new Rhine bridge near Düsseldorf. In: Centralblatt der Bauverwaltung , Volume 18, 1898, No. 46 (from November 12, 1898) ( online ), pp. 557-560.
  5. ^ The Kornhausbrücke in Bern. In: Centralblatt der Bauverwaltung , Volume 18, 1898, No. 34 (from August 20, 1898) ( online ), pp. 397-399.
  6. ↑ Centralblatt der Bauverwaltung , Volume 18, 1898, No. 49 (from December 3, 1898) ( online ), p. 593 (section official communications ).
  7. ↑ Zentralblatt der Bauverwaltung , Volume 24, 1904, No. 81 (from October 8, 1904) ( online ), p. 501 (section official communications ).
  8. ↑ Zentralblatt der Bauverwaltung , Volume 28, 1908, No. 1 (from January 4, 1908) ( online ), p. 1 (section official communications ).
  9. ↑ Zentralblatt der Bauverwaltung , Volume 29, 1909, No. 63 (from August 7, 1909) ( online ), p. 417 (section official communications ).
  10. ↑ Zentralblatt der Bauverwaltung , 33rd year 1913, No. 5 (from January 18, 1913) ( online ), p. 33 (section official communications ).
personal data
SURNAME Krohn, Reinhold
ALTERNATIVE NAMES Krohn, Reinhold Friedrich Karl (full name)
BRIEF DESCRIPTION German civil engineer and university professor
DATE OF BIRTH November 25, 1852
PLACE OF BIRTH Hamburg
DATE OF DEATH June 29, 1932
Place of death Danzig - Langfuhr