INFLUENCE OF STABILIZING CABLES ON SEISMIC RESPONSE OF A MULTISPAN CABLE-STAYED BRIDGE

The Ting Kau Bridge in Hong Kong is one of the limited applications of using multispan cable-stayed bridges in practice. It adopts 8 longitudinal stabilizing cables (LSCs) up to 465 m long each, to provide restraint to the slender central tower from unbalanced traffic and wind loading. In this article, the modal properties of the Ting Kau Bridge and the influence of the LSCs on bridge seismic response were studied with a validated 3D finite element model and under the assumption of synchronous excitation. The results indicate that the LSCs bring about a number of global modes with strong modal interaction among the deck, towers and cables. The seismic response and internal force in the central tower are found to be much larger than those in the side towers. As a whole, the stabilizing cables act favorably in reducing the seismic response of the bridge.

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  • Corporate Authors:

    Blackwell Publishing

    350 Main Street
    Malden, MA  United States  02148
  • Authors:
    • Ni, Y Q
    • Wang, J Y
    • Lo, L C
  • Publication Date: 2005-3

Language

  • English

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Filing Info

  • Accession Number: 00986829
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 23 2005 12:00AM