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kuando
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 Posted: Fri Jun 08, 2012 4:20 pm |
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| Better to have Bikeloved and lost than never to have Bikeloved at allJoined: Tue May 29, 2007 9:22 pmPosts: 2719Location: Golden Valley
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Bad welds.
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Purcell
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| Posted: Tue Jun 12, 2012 7:55 am |
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 HandslingerJoined: Mon Sep 17, 2007 8:10 amPosts: 440
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Fanatic wrote: It's kinda blustery this morning, so I stopped while crossing the bridge and grabbed one of the longest remaining cables. The vibration is surprisingly intense. The motion reminds me of when a garden hose is caught on something and you try to free it by jerking the other end up and down to send a wave along the hose.
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All skilled, purposeful movements consist in closing gaps of one form or another. |
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mkohner
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| Posted: Thu Jun 14, 2012 6:18 am |
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| Seen bumming tubes on The GreenwayJoined: Thu Apr 21, 2011 12:56 pmPosts: 27
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Purcell wrote: Fanatic wrote: It's kinda blustery this morning, so I stopped while crossing the bridge and grabbed one of the longest remaining cables. The vibration is surprisingly intense. The motion reminds me of when a garden hose is caught on something and you try to free it by jerking the other end up and down to send a wave along the hose. I shot this last night. The bridge deck was strongly shaking under my feet. Video of vibrating sabo bridge cablesIf that keeps happening I wouldn't be surprised to see another cable anchor fail.
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omgmrj
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| Posted: Thu Jun 14, 2012 11:45 am |
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 Dances on the pedals in a most immodest wayJoined: Thu Feb 12, 2009 11:15 amPosts: 7141
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Y'all never grabbed the cables before the bridge failed?
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JenNastix wrote: You guys ever wonder if we're over-thinking this bike riding thing sometimes? |
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Karmastray
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| Posted: Thu Jun 14, 2012 2:40 pm |
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 Taking my bike off some sweet jumpsJoined: Sat May 29, 2010 8:15 pmPosts: 245Location: Como SE, Mpls.
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Being cut in half by snapped high tension cables and then riding the crumbling bridge down to Hiawatha to be hit by speeding semis and minivans is still preferable to crossing at that fucking light.  edit: had to add Dr. Z.
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"Anger is like flatulence isn't it? In so far as it is better to let it out in increments then to let it go with one humongous rattle." - Tommy Saxondale |
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Svenn
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| Posted: Thu Jun 14, 2012 2:46 pm |
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 Engages in bitter arguments over 165 vs 170 cranksJoined: Wed Jul 22, 2009 12:23 pmPosts: 3063Location: atop a barrel
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Works for me! Less people acting acting like they don't know what a line is at that intersection.
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<*>_<*>
02-19-2012 - Never Forget |
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Karmastray
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| Posted: Thu Jun 14, 2012 8:02 pm |
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| Taking my bike off some sweet jumpsJoined: Sat May 29, 2010 8:15 pmPosts: 245Location: Como SE, Mpls.
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"Anger is like flatulence isn't it? In so far as it is better to let it out in increments then to let it go with one humongous rattle." - Tommy Saxondale |
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jweb
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| Posted: Wed Jun 20, 2012 9:14 am |
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 SoigneurJoined: Thu May 21, 2009 9:18 amPosts: 572Location: Corcoran
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The planters have been moved off the path now. And not a moment too soon... those things were dangerous.
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//TODO: Insert witty/pithy/creative/insightful signature line here. |
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omgmrj
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| Posted: Wed Jun 20, 2012 3:22 pm |
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| Dances on the pedals in a most immodest wayJoined: Thu Feb 12, 2009 11:15 amPosts: 7141
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JenNastix wrote: You guys ever wonder if we're over-thinking this bike riding thing sometimes? |
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jweb
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| Posted: Thu Jun 21, 2012 8:32 am |
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| SoigneurJoined: Thu May 21, 2009 9:18 amPosts: 572Location: Corcoran
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jweb wrote: The planters have been moved off the path now. And not a moment too soon... those things were dangerous. Aaaaaaaaaaaaannnnnnnnnnnnnnnnnnndddddddddddddddddd..... now they're back. But at least now they're a bit more logically-placed, so it's not "running the gauntlet' to get around them. Small victories, I guess.
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//TODO: Insert witty/pithy/creative/insightful signature line here. |
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livewombat
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| Posted: Thu Jun 21, 2012 7:20 pm |
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 Secret: wants a tall bikeJoined: Sat Mar 03, 2007 10:26 pmPosts: 428Location: Minneapolis
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jweb wrote: jweb wrote: The planters have been moved off the path now. And not a moment too soon... those things were dangerous. Aaaaaaaaaaaaannnnnnnnnnnnnnnnnnndddddddddddddddddd..... now they're back. But at least now they're a bit more logically-placed, so it's not "running the gauntlet' to get around them. Small victories, I guess. I came around the pylon headed west and was surprised by the planters, which seemed much closer than before, and aligned so it would have been easy to run into them. That was after stopping for a long time to watch the cables vibrate and feel the bridge deck rumbling underneath. What IS it with those cables?? The vibrations were huge!!
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mkohner
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| Posted: Fri Jun 22, 2012 8:59 am |
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| Seen bumming tubes on The GreenwayJoined: Thu Apr 21, 2011 12:56 pmPosts: 27
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livewombat wrote: That was after stopping for a long time to watch the cables vibrate and feel the bridge deck rumbling underneath. What IS it with those cables?? The vibrations were huge!! http://en.wikipedia.org/wiki/Aeroelasticity#Flutter
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Karmastray
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| Posted: Sat Jun 23, 2012 11:29 am |
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| Taking my bike off some sweet jumpsJoined: Sat May 29, 2010 8:15 pmPosts: 245Location: Como SE, Mpls.
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livewombat wrote: I came around the pylon headed west and was surprised by the planters, which seemed much closer than before, and aligned so it would have been easy to run into them. Luckily they painted a little safety island around the planters. Whew, who knows what would have happened without that!
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"Anger is like flatulence isn't it? In so far as it is better to let it out in increments then to let it go with one humongous rattle." - Tommy Saxondale |
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jim_h
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| Posted: Sat Jun 23, 2012 2:09 pm |
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| Could use a bike fitJoined: Wed Apr 16, 2008 3:53 pmPosts: 1016Location: Old Cyclists' Home
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livewombat wrote: What IS it with those cables?? The vibrations were huge!! I'm not an expert but I predict that when the final report goes public, it says that nothing needs to be changed, the design is fine, and the cause of the failure was just a defective part or two, needing to be remade and replaced. The StarTribune naturally tried to stir up controversy about incompetent engineers or crooked contractors, and the 'comments' included rants from 'experts" about obvious design errors. But I'll bet the designers were actually axperienced bridge engineers well aware of wind and the vibrations it causes.
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Probably too old to be posting here but what the heck... |
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Fanatic
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| Posted: Sat Jun 23, 2012 2:54 pm |
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 Glass CrankerJoined: Tue Jun 28, 2011 10:14 pmPosts: 220Location: SW Minneapolis
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Predictions? I'll bite.
I predict that the attachment design is faulty, and that new attachment points on the pylon will need to be designed, fabricated, and installed.
It won't be a huge deal, but it will take time, involve another bridge closing this fall (the over/under is for three weeks), and let the pot continue to be stirred.
I hope I'm wrong.
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