Comments on: Bridge segments ease on down the road http://blogs2.startribune.com/blogs/roadguy/2008/05/02/bridge-segments-ease-on-down-the-road/ Travel along with our transportation geek Mon, 23 Nov 2009 18:55:04 +0000 http://wordpress.org/?v=2.3.3 By: jerry b http://blogs2.startribune.com/blogs/roadguy/2008/05/02/bridge-segments-ease-on-down-the-road/#comment-13575 jerry b Sun, 04 May 2008 15:16:17 +0000 http://blogs2.startribune.com/blogs/roadguy/2008/05/02/bridge-segments-ease-on-down-the-road/#comment-13575 Why only a few cables at bottom of box where the box is under tension load? And many, many cables at top where load is compression (+ shear)? Concrete takes huge compression loading but needs cable to take tension. Why only a few cables at bottom of box where the box is under tension load?
And many, many cables at top where load is compression (+ shear)? Concrete takes huge compression loading but needs cable to take tension.

]]> By: barryS http://blogs2.startribune.com/blogs/roadguy/2008/05/02/bridge-segments-ease-on-down-the-road/#comment-13573 barryS Sat, 03 May 2008 17:13:48 +0000 http://blogs2.startribune.com/blogs/roadguy/2008/05/02/bridge-segments-ease-on-down-the-road/#comment-13573 I imagine they report gas mileage for something like that in gallons per mile. :) I imagine they report gas mileage for something like that in gallons per mile. :)

]]> By: jen http://blogs2.startribune.com/blogs/roadguy/2008/05/02/bridge-segments-ease-on-down-the-road/#comment-13572 jen Sat, 03 May 2008 16:12:44 +0000 http://blogs2.startribune.com/blogs/roadguy/2008/05/02/bridge-segments-ease-on-down-the-road/#comment-13572 I love seeing these in-progress photos! I wonder what kind of gas mileage a rig like that gets? I love seeing these in-progress photos!

I wonder what kind of gas mileage a rig like that gets?

]]> By: Curmudgeon Geographer http://blogs2.startribune.com/blogs/roadguy/2008/05/02/bridge-segments-ease-on-down-the-road/#comment-13570 Curmudgeon Geographer Sat, 03 May 2008 05:58:24 +0000 http://blogs2.startribune.com/blogs/roadguy/2008/05/02/bridge-segments-ease-on-down-the-road/#comment-13570 Open space will be inside the open space. Thus the name, "<b>box</b> girder". It does allow for inspectors to travel along inside the span looking for crack nicely though. That's how the cracks in the Wakota bridge under construction were discovered as I recall. Open space will be inside the open space. Thus the name, “box girder”. It does allow for inspectors to travel along inside the span looking for crack nicely though. That’s how the cracks in the Wakota bridge under construction were discovered as I recall.

]]> By: stabs329 http://blogs2.startribune.com/blogs/roadguy/2008/05/02/bridge-segments-ease-on-down-the-road/#comment-13569 stabs329 Sat, 03 May 2008 04:05:06 +0000 http://blogs2.startribune.com/blogs/roadguy/2008/05/02/bridge-segments-ease-on-down-the-road/#comment-13569 That is not a manhole. It is most likely the location of the anti-icing spray head. No falsework on the main river span. It will be done doing cantilever construction. You have to make it out there in June and see it for your self. It will be an awesome site to see. That is not a manhole. It is most likely the location of the anti-icing spray head.

No falsework on the main river span. It will be done doing cantilever construction. You have to make it out there in June and see it for your self. It will be an awesome site to see.

]]> By: Mr. Nasty http://blogs2.startribune.com/blogs/roadguy/2008/05/02/bridge-segments-ease-on-down-the-road/#comment-13567 Mr. Nasty Sat, 03 May 2008 02:54:38 +0000 http://blogs2.startribune.com/blogs/roadguy/2008/05/02/bridge-segments-ease-on-down-the-road/#comment-13567 What WILL be inside all that open space....nothing? What WILL be inside all that open space….nothing?

]]> By: joe b http://blogs2.startribune.com/blogs/roadguy/2008/05/02/bridge-segments-ease-on-down-the-road/#comment-13563 joe b Sat, 03 May 2008 01:49:06 +0000 http://blogs2.startribune.com/blogs/roadguy/2008/05/02/bridge-segments-ease-on-down-the-road/#comment-13563 maybe they should run the lrt down the inside of the bridge. its big enough. maybe they should run the lrt down the inside of the bridge. its big enough.

]]> By: DGB http://blogs2.startribune.com/blogs/roadguy/2008/05/02/bridge-segments-ease-on-down-the-road/#comment-13561 DGB Sat, 03 May 2008 01:31:41 +0000 http://blogs2.startribune.com/blogs/roadguy/2008/05/02/bridge-segments-ease-on-down-the-road/#comment-13561 Here's what I don't understand: How do they hold the bridge up, until they can get all the segments in place - so they can thread the tensioning cables? Falsework? I don't want to hear anything about tensioning cable rusting! Here’s what I don’t understand: How do they hold the bridge up, until they can get all the segments in place - so they can thread the tensioning cables?

Falsework?

I don’t want to hear anything about tensioning cable rusting!

]]> By: Roadguy http://blogs2.startribune.com/blogs/roadguy/2008/05/02/bridge-segments-ease-on-down-the-road/#comment-13558 Roadguy Fri, 02 May 2008 22:40:17 +0000 http://blogs2.startribune.com/blogs/roadguy/2008/05/02/bridge-segments-ease-on-down-the-road/#comment-13558 Cables connecting the segments to each other and to the rest of the bridge will run through those holes (I can't remember if they're PVC or what at the moment). Cables connecting the segments to each other and to the rest of the bridge will run through those holes (I can’t remember if they’re PVC or what at the moment).

]]> By: JH http://blogs2.startribune.com/blogs/roadguy/2008/05/02/bridge-segments-ease-on-down-the-road/#comment-13557 JH Fri, 02 May 2008 22:33:42 +0000 http://blogs2.startribune.com/blogs/roadguy/2008/05/02/bridge-segments-ease-on-down-the-road/#comment-13557 Is that PVC pipe (the white ones at the top)? What will they be used for? Is that PVC pipe (the white ones at the top)? What will they be used for?

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