Robert Land (engineer)

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Robert Land (born July 21, 1857 in Althammer , † late June 1899 in Kamaran , Ottoman Empire ) was a German civil engineer.

After graduating from high school in Görlitz in 1876, Land studied civil engineering at the TH Dresden , graduating in 1880. Christian Otto Mohr was one of his teachers there . He first worked for the Berlin Stadtbahn , was again at the TH Dresden in 1883 to take the teacher test and from 1883 to 1888 he was at the Reich Institute for Hydraulic Engineering in Alsace-Lorraine . In 1888 he taught mathematics at the technical school in Chemnitz and in 1890 he became a professor at the engineering school in Istanbul .

In 1887, independently of Enrico Betti , he found Betti 's theorem (1872) and then developed a kinematic theory of frame structures in 1887/88, which understands them as a kind of machine.

Fonts

  • About the static and geometric definition of the girders, especially the trusses (at the same time a contribution to the kinematics of the framework), Zentralblatt der Bauverwaltung , Volume 7, 1887, pp. 363-370
  • On the reciprocity of elastic changes in shape as the basis of a general representation of the lines of influence of all types of girders, as well as a general theory of girders in general, Wochenblatt für Baukunde 1887, pp. 14–16, 24–25, 33–35
  • Kinematic theory of statically determined girders, Schweizerische Bauzeitung, Volume 21, 1887, pp. 157–160
  • Kinematic theory of statically determined carriers, Österreichische Ingenieur- und Architekten-Zeitschrift , Volume 40, 1888, pp. 11–39, 162–181
  • Contribution to the determination of the bending lines of flat elastic structures, Journal of the Austrian Architects and Engineers Association, Volume 41, 1889, pp. 157–161

literature

  • Karl-Eugen Kurrer : The History of the Theory of Structures. Searching for Equilibrium , Berlin: Ernst & Sohn 2018, ISBN 978-3-433-03229-9 .
  • Obituary in Zentralblatt der Bauverwaltung, Volume 19, 1899, p. 364

Individual evidence

  1. ^ Karl-Eugen Kurrer: The History of the Theory of Structures. Searching for Equilibrium , Berlin: Ernst & Sohn 2018, article Enrico Betti, p. 971, ISBN 978-3-433-03229-9 .
  2. ^ Karl-Eugen Kurrer: History of structural engineering. In search of balance . Berlin: Ernst & Sohn 2016, p. 496, ISBN 978-3-433-03134-6 .
personal data
SURNAME Country, Robert
BRIEF DESCRIPTION German civil engineer
DATE OF BIRTH July 21, 1857
PLACE OF BIRTH Old hammer
DATE OF DEATH June 1899
Place of death Kamaran , Ottoman Empire