Marcus' method

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Marcus's method is a structural analysis used in the design of reinforced concrete slabs. The method was developed by Henri Marcus and described in 1938 in {{langx|de|Die Theorie elastischer Gewebe und ihre Anwendung auf die Berechnung biegsamer Platten|label=none}}.{{Cite book |last=Hahn |first=J. |title=Structural Analysis of Beams and Slabs |date=1966 |publisher=Sir Isaac Pitman and Sons Ltd |location=London |page=143 & note 3 |translator-last=Amerongen |translator-first=C. V.}} The method adapts the strip method and is based on an elastic analysis of torsionally restrained two-way rectangular slabs with a uniformly distributed load. Marcus introduced a correction factor to the existing Rankine Grashoff theory in order to account for torsional restraints at the corners.