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Rigidité D'un Portique


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Bonsoir ;

ma question est la suivante :comment peut-on déterminé la rigidité totale d'un portique (illustré dans la photo jointe) avec le chargement harmonique P(t)=AcosPt.

prière de me répondre sur la méthode de résolution ! est-ce que on considère la structure comme étant un élément a plusieurs segment ?


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