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General method for calculation of response of beams and frames, with lumped mass distribution, traversed by vertical force is presented; process of modal analysis is applied to system with finite number of degrees of freedom; resulting differential equations are integrated by Laplace transform method; expression in closed form is found for dynamic influence lines of deflections of structure; static influence lines are also calculated by modal superposition; method is applied to wide class of structures, and some general conclusions, related to order of magnitude of dynamic effects of moving force, are presented.
General method for calculation of response of beams and frames, with lumped mass distribution, traversed by vertical force is presented; process of modal analysis is applied to system with finite number of degrees of freedom; resulting differential equations are integrated by Laplace transform method; expression in closed form is found for dynamic influence lines of deflections of structure; static influence lines are also calculated by modal superposition; method is applied to wide class of structures, and some general conclusions, related to order of magnitude of dynamic effects of moving force, are presented.
Dynamic influence lines of beams and frames
ASCE -- Proc (J Structural Div)
Filho, F.V. (author)
1966
16 pages
Article (Journal)
English
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