RUBBER RESISTANCE

This article briefly describes the design and construction of a new harbour bridge in Nagasaki, Japan, and details the use of special rubber dampers to help the bridge withstand high winds. A cable-stayed bridge design was chosen with orthotropic box section deck. It was designed for an average wind speed of 49m/s and a maximum of 75m/s. Tuned mass dampers are installed in the top of each tower to mitigate wind-induced vibrations. A high-performance cable damping system is used. A specially altered rubber is made into small circular pads which are sandwiched between upper and lower steel plates attached to the bottom of the stay-cable sheathing by flanged collars. The number of pads required varies from two to six depending on cable diameter, length, tension, weight and position of installation. The dampers are seen as very durable and maintenance-free, and are effective at reducing both high and low frequency vibrations.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/10480594
• Corporate Authors:

  Hemming Information Services

  32 Vauxhall Bridge Road
  London,   United Kingdom  SW1V 2SS
• Authors:
  • MASTERTON, I
• Publication Date: 2004

Language

• English

Media Info

• Pagination: p. 44-5
• Serial:
  • Bridge Design & Engineering
  • Volume: 4th quarter
  • Publisher: Hemming Information Services
  • ISSN: 1359-7493
  • Serial URL: http://www.bridgeweb.com/Default.aspx

Subject/Index Terms

• TRT Terms: Bridges; Cable stayed bridges; Construction; Damping (Physics); Rubber; Vibration; Wind
• ITRD Terms: 3455: Bridge; 3655: Construction; 5559: Damping; 7494: Rubber; 3417: Stayed girder bridge; 5558: Vibration; 2554: Wind
• Subject Areas: Bridges and other structures; Construction;

Filing Info

• Accession Number: 00988532
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Apr 4 2005 12:00AM