CABLE-STAYED VERSUS CLASSICAL SUSPENSION BRIDGE

The development of cable-stayed bridges is traced back to the 1600's. The cable-stayed bridge is a new type of bridge concept that has just started to attract the attention of bridge engineers in the United States. A comparative study of existing bridges has shown that cable-stayed bridges have a definite place in the economical design of bridges for intermediate spans and challenge the supremacy of the conventional suspension bridge in the long-span range. A comparison between classical suspension and cable-stayed is presented on the basis of stiffness, optimization of cable-weight, and aerodynamics. A general conclusion is stated that a cable-stayed system is stiffer and more economical than a suspension system of camparable span. Wind effects have been investigated very thoroughly for suspension bridges and such analysis is also required for cable-stayed bridges. It is indicated that because of inherent system stiffness and damping, the cable-stayed system is not as sensitive to wind oscillation as a conventional suspension system.

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Filing Info

  • Accession Number: 00148436
  • Record Type: Publication
  • Report/Paper Numbers: ASCE #12130
  • Files: TRIS
  • Created Date: Mar 30 1977 12:00AM