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Renewal Application Research in Design of Suspension Bridge Stiffened by Steel Slab Girder

Autor(en):

Medium: Fachartikel
Sprache(n): Englisch
Veröffentlicht in: Structural Engineering International, , n. 3, v. 17
Seite(n): 214-216
DOI: 10.2749/101686607781645815
Abstrakt:

This paper introduces application research in the design of a suspension bridge stiffened with a steel slab girder, with special reference to the Hongguang Bridge in Liuzhou. This bridge is a renewed application of this type of structure after the collapse of old Tacoma Bridge. The bridge is a suspension bridge with the main span of 380 m stiffened by an orthotropic steel slab. The width of the stiffening girder is 27, 8 m and the height is 2, 2 m. The center spacing is 22, 8 m between two longitudinal side beams and 2, 75 m between adjacent diaphragms. Correspondingly the transversal distance between the anchorage points of the hangers is 22, 8 m and the longitudinal panel length is 8, 25 m. In order to ensure the safety and wind-resistance of the bridge, some of the results of the research on wind-resistance, conducted on the Tacoma Narrows Bridge were used in the design. At the same time, detailed theoretical analysis and wind tunnel tests were carried out. As a result, longitudinal dampers, middle buckles and wind guide skirts are adopted to improve the dynamic behaviour of the structure.

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  • Reference-ID
    10029144
  • Veröffentlicht am:
    18.08.2007
  • Geändert am:
    28.10.2016
 
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