Structural Dynamics of Elevator Counterweight Systems and Evaluation of Passive Constraint
Publication: Journal of Structural Engineering
Volume 114, Issue 4
Abstract
Structural dynamic responses imposed by large base excitation and the effectiveness of an intermediate constraint in elevator counterweight systems are studied. A nonlinear contact finite element with nonlinear stiffness and amping approximated by polynomial functions is developed to simulate the dynamic contacts in elevator counterweight systems. A passive vibration control device—intermediate constraint—is proposed and evaluated. Analysis results show that the number of consecutive contacts increases as the excitation frequency decreases; large contact force can occur in current design practice, and constraining the motions of two rails by intermediate ties can reduce the contact load by 40%.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 114 • Issue 4 • April 1988
Pages: 783 - 803
Copyright
Copyright © 1988 ASCE.
History
Published online: Apr 1, 1988
Published in print: Apr 1988
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