Agriv8 Posted September 15, 2021 Report Share Posted September 15, 2021 Afternoon all as google has not found the answer. walked the Humber Bridge on a recent visit to mr JDog on here ! The drop cables between suspension cables and deck have a couple of odd devices fitted - I assume there some sort of harmonic balancer for wind but can not get a definitive answer any body shed some light on these Thanks Agriv8 Quote Link to comment Share on other sites More sharing options...
Surfer Posted September 15, 2021 Report Share Posted September 15, 2021 Yes to stop vibrations, only told by someone that maintains the bridge but only his word for it Quote Link to comment Share on other sites More sharing options...
vmaxphil Posted September 16, 2021 Report Share Posted September 16, 2021 According to my mate the conspiracy theorist it's to stop the aliens space ship from crashing into the bridge Quote Link to comment Share on other sites More sharing options...
Agriv8 Posted September 16, 2021 Author Report Share Posted September 16, 2021 2 answers and from what I have found on Google both could be correct. Found a lot about the drying system fitted to the suspension cables what a fantastic idea ! and more on how the individual cables are joined to the counter balance worth a read. Just nothing on the anti Alien devices fitted ! will keep digging! thanks Agriv8 Quote Link to comment Share on other sites More sharing options...
welsh1 Posted September 16, 2021 Report Share Posted September 16, 2021 They are dampers Quote Link to comment Share on other sites More sharing options...
Agriv8 Posted September 16, 2021 Author Report Share Posted September 16, 2021 Welsh 1 thank you so much for finding that and taking the time to post impressive watching it being fitted and instant dampening. I guess it’s not to stop aliens crashing into it ! Seeing some of the photos of frayed drop cabled it does make sense to stop em vibrating I suspect the stopping even small harmonic vibration must be beneficial ! thanks All Quote Link to comment Share on other sites More sharing options...
welsh1 Posted September 16, 2021 Report Share Posted September 16, 2021 19 minutes ago, Agriv8 said: Welsh 1 thank you so much for finding that and taking the time to post impressive watching it being fitted and instant dampening. I guess it’s not to stop aliens crashing into it ! Seeing some of the photos of frayed drop cabled it does make sense to stop em vibrating I suspect the stopping even small harmonic vibration must be beneficial ! thanks All If you look around you stockbridge dampers are used in quite a few places, you have most probably seen them hundreds of times while out shooting and passing pylons and never gave them a second glance.https://slate.com/human-interest/2015/07/what-s-that-thing-stockbridge-dampers.html Quote Link to comment Share on other sites More sharing options...
Jega Posted September 16, 2021 Report Share Posted September 16, 2021 We had this argument at work ,so i asked the guy's who operate the bridge . Straight from the horses mouth. Good afternoon Gerard, Certain winds cause the hangers to oscillate (wobble). The items you have identified are dampeners to reduce this. We hope this helps settle the argument between you and your work colleagues. Kind regards Karyn Quote Link to comment Share on other sites More sharing options...
la bala Posted September 16, 2021 Report Share Posted September 16, 2021 As an overhead linesman in the 60s we used dampers on transmission lines to stop vibration. Quote Link to comment Share on other sites More sharing options...
Diver One Posted September 16, 2021 Report Share Posted September 16, 2021 12 hours ago, vmaxphil said: According to my mate the conspiracy theorist it's to stop the aliens space ship from crashing into the bridge Well it certainly works then....never seen a report of a spaceship crashing into one Quote Link to comment Share on other sites More sharing options...
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