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Beer Sheva Footbridge, Rokach-Ashkenazi Engineers

 Beer Sheva Footbridge, Rokach-Ashkenazi Engineers
Author(s):

Medium: conference paper
Language(s): English
Conference: Footbridge 2017 Berlin - Tell A Story, 6-8.9.2017, Technische Universität Berlin (TU Berlin)
Published in:
Year: 2017
DOI: 10.24904/footbridge2017.09216
Abstract:

The Beer Sheva Footbridge is a two-span lenticular truss bridge. The slender design and flexible piers cause several low frequencies in each of the three primary directions. In order to stiffen the bridge and still allow thermal expansion, a friction-based connection was designed which resists human induced vibration loads but slips under the large thermal loads. Stiffening the bridge in this way raised the frequency to 1.72Hz and lowered the participating mass to 24%. 6 TMD devices were designed for the bridge for vertical and horizontal vibrations.

On the eve of the 18th of June, all railway traffic was stopped and during a nightlong operation the southern span was lifted into place and welded to its supports. This span has a mass of 230 tons. The 430 ton northern span was lifted during a second operation and welded to its supports. Throughout the entire construction, the traffic was interrupted for less than 24 hours.

Keywords:
steel architecture footbridge damping truss vibration
License:

This creative work is copyrighted. The copyright holder(s) do(es) not grant any usage rights other than viewing and downloading the work for personal use. Further copying or publication requires the permission of the copyright holder(s).

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  • About this
    data sheet
  • Reference-ID
    10075235
  • Published on:
    01/09/2017
  • Last updated on:
    05/06/2024
 
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