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DYNAMIC ANALYSIS OF A CHANNEL BEAM DUE TO A MOVING LOAD

✍ Scribed by J.-S. Wu; K.-Z. Chen

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
405 KB
Volume
188
Category
Article
ISSN
0022-460X

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✦ Synopsis

Based on the physical properties and sectional dimensions of a conventional channel beam, a new channel beam (called the ''iso-moment-of-inertia'' beam), with area moment of inertia about the unsymmetrical principal axis of the cross-section equal to that about the symmetrical one, is obtained. The dynamic responses of the new channel beam subjected to a moving load are then investigated. It is found that the dynamic behaviors of coupled vibration and uncoupled vibration of the iso-moment-of-inertia beam are very different. The degree of divergence has something to do with the moving load speed and the effects of shear deformation, rotatory inertia, and warping torsion.

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