NEWPORT BRIDGE SUPERSTRUCTURE

THE SUPERSTRUCTURE OF THE NEWPORT BRIDGE EMBODIES ADVANCED FEATURES RELATING PRINCIPALLY TO AERODYNAMIC STABILITY, CABLES, CABLE ANCHORAGES, AND CABLE WRAPPING. WIND TUNNEL TESTS WERE CONDUCTED ON TWO BRIDGE MODELS, THE ORIGINAL DESIGN AND A DESIGN INCORPORATING DECK VENTILATION SLOTS. THE MODIFIED MODEL SHOWED SIGNIFICANTLY BETTER AERODYNAMIC STABILITY, AND WAS CHOSEN FOR THE FINAL DESIGN. IN OTHER TESTS, THIS MODEL ALSO DEMONSTRATED THE BENEFICIAL AERODYNAMIC EFFECT OF ADDING A MEDIAN BARRIER TO THE BRIDGE ROADWAY. FOUR BARRIER CONFIGURATIONS WERE TESTED, WITH THE TALLEST YIELDING THE BEST RESULTS. THE CABLES ARE WRAPPED IN A UNIQUE PLASTIC WRAPPING RATHER THAN BEING CONVENTIONALLY WIRE WRAPPED, WHILE THE CONCRETE DECK RECEIVED A NEW COATING THAT SERVES SIMULTANEOUSLY AS A CURING COMPOUND CORROSION. IN ADDITION, THE SUBSTANTIALLY ALL-WELDED CRUCIFORM TOWERS WERE DESIGNED WITH ESTHETIC CONSIDERATIONS UPPERMOST. /ASCE/

• Supplemental Notes:
  • Vol 97, No ST 11, PROC PAPER 8533, PP 2653-2678, 15 FIG,
• Authors:
  • Hedefine, A
  • SILANO, L G
• Publication Date: 1971-11

Media Info

• Serial:
  • Journal of the Structural Division
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Aerodynamics; Bridge anchorages; Bridge decks; Bridge superstructures; Bridge towers; Bridges; Cables; Coatings; Concrete; Concrete curing; Construction management; Deicing; Median barriers; Packaging; Plastics; Stability (Mechanics); Suspension bridges; Wind tunnels
• Uncontrolled Terms: Model tests; Wrapping
• Subject Areas: Bridges and other structures; Construction; Freight Transportation; Highways;

Filing Info

• Accession Number: 00209571
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 20 1971 12:00AM