Research Article
Dec 1978
Dynamic Model Studies of Ruck-A-Chucky Bridge
Publication: Journal of the Structural Division
Volume 104, Issue 12
Abstract
The prototype bridge is a 1,300-ft (400-m) span box-girder type with a horizontal radius of 1,500 ft (458 m) and supported on 48 cables individually anchored to the canyon walls. The model scale selected was 1/200 and a distorted model was constructed to study the global behavior of the system to ground shaking applied in all three coordinates. Preliminary testing included the measurement of static live-load response, system damping, and natural frequencies and mode shapes. These are compared with the results of linear analysis. Shaking tests were conducted on a 20-ft x 20-ft (6.1-m x 6.1-m) two-component table. The principal dynamic behavior is shown in the form of time-history plots of selected quantities, and maximum response values are compared with linear analysis. It is concluded that linear analysis provides dynamic response data accurate enough for design purposes, that cable vibrations have little influence on the gross behavior of the system, and that the system damping is not appreciably affected by the cable system.
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Information
Published In
Journal of the Structural Division
Volume 104 • Issue 12 • December 1978
Pages: 1827 - 1844
Copyright
© 1978 American Society of Civil Engineers.
History
Published in print: Dec 1978
Published online: Feb 1, 2021
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Authors
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William G. Godden, M.ASCE
Prof. of Civ. Engrg., Univ. of California, Berkeley, Calif.
Mohammod Aslam, AM.ASCE
Assoc. Development Engr., Univ. of California, Berkeley, Calif.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.