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Electronic Schematics (alt.binaries.schematics.electronic) A place to show and share your electronics schematic drawings. |
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#2
Posted to alt.binaries.schematics.electronic,rec.crafts.metalworking,sci.electronics.design
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OT Minneapolis Collapsed Bridge Pix
Rich Grise wrote: I tried to attach these, but apparently my newsclient or server choked on 2 MB of images. I got them from my brother, who lives in Minneapolis. http://mysite.verizon.net/richgrise/...e/image020.jpg One thing that struck me straight away is how flimsy the steelwork looks for the job it's supposed to do. Graham |
#3
Posted to alt.binaries.schematics.electronic,rec.crafts.metalworking,sci.electronics.design
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OT Minneapolis Collapsed Bridge Pix
On Sat, 18 Aug 2007 23:22:21 +0100, Eeyore
wrote: Rich Grise wrote: I tried to attach these, but apparently my newsclient or server choked on 2 MB of images. I got them from my brother, who lives in Minneapolis. http://mysite.verizon.net/richgrise/...e/image020.jpg One thing that struck me straight away is how flimsy the steelwork looks for the job it's supposed to do. --- Like you know something about it? -- JF |
#4
Posted to alt.binaries.schematics.electronic,rec.crafts.metalworking,sci.electronics.design
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OT Minneapolis Collapsed Bridge Pix
John Fields wrote: Eeyore wrote: Rich Grise wrote: I tried to attach these, but apparently my newsclient or server choked on 2 MB of images. I got them from my brother, who lives in Minneapolis. http://mysite.verizon.net/richgrise/...e/image020.jpg One thing that struck me straight away is how flimsy the steelwork looks for the job it's supposed to do. --- Like you know something about it? I'm comparing it with equivalent structures in the UK. Sure, we had the Tay Bridge disaster but that was at least in a howling storm, and in the mid-1800s very little was known about the performance of such structures under those conditions. Graham |
#5
Posted to alt.binaries.schematics.electronic,rec.crafts.metalworking,sci.electronics.design
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OT Minneapolis Collapsed Bridge Pix
Eeyore wrote:
John Fields wrote: Eeyore wrote: Rich Grise wrote: I tried to attach these, but apparently my newsclient or server choked on 2 MB of images. I got them from my brother, who lives in Minneapolis. http://mysite.verizon.net/richgrise/...e/image020.jpg One thing that struck me straight away is how flimsy the steelwork looks for the job it's supposed to do. --- Like you know something about it? I'm comparing it with equivalent structures in the UK. Sure, we had the Tay Bridge disaster but that was at least in a howling storm, and in the mid-1800s very little was known about the performance of such structures under those conditions. Graham Yawn. -- Service to my country? Been there, Done that, and I've got my DD214 to prove it. Member of DAV #85. Michael A. Terrell Central Florida |
#6
Posted to alt.binaries.schematics.electronic,rec.crafts.metalworking,sci.electronics.design
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OT Minneapolis Collapsed Bridge Pix
On Sat, 18 Aug 2007 23:22:21 +0100, Eeyore
wrote: Rich Grise wrote: I tried to attach these, but apparently my newsclient or server choked on 2 MB of images. I got them from my brother, who lives in Minneapolis. http://mysite.verizon.net/richgrise/...e/image020.jpg One thing that struck me straight away is how flimsy the steelwork looks for the job it's supposed to do. Graham I wouldn't say its flimsey. There is a bridge in the backround of one photo that looks to have similar size steelwork. I have also seen many bridges that look similar. The steel probably just looks flimisy cause of the failure mechanism. Has there been any real indications yet of how the failure may have occoured? |
#7
Posted to alt.binaries.schematics.electronic,rec.crafts.metalworking,sci.electronics.design
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OT Minneapolis Collapsed Bridge Pix
"ChairmanOfTheBored" wrote in message You obviously do not know what a hundred tons of concrete can do after a forty foot free fall. For that matter, I always thought railroad track to be rather stiff and immovable. I was watching the mainline tracks behind my office being changed. A crane picked up the loose rail that had been dropped off in 100 foot sections. Looked like a 100 ton piece of cooked spaghetti the way it bent. Go figure. |
#8
Posted to alt.binaries.schematics.electronic,rec.crafts.metalworking,sci.electronics.design
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OT Minneapolis Collapsed Bridge Pix
oppie wrote: "ChairmanOfTheBored" wrote in message You obviously do not know what a hundred tons of concrete can do after a forty foot free fall. For that matter, I always thought railroad track to be rather stiff and immovable. I was watching the mainline tracks behind my office being changed. A crane picked up the loose rail that had been dropped off in 100 foot sections. Looked like a 100 ton piece of cooked spaghetti the way it bent. Go figure. You don't use continuous welded rail over there ? Now that stuff really does look bendy. Graham |
#9
Posted to alt.binaries.schematics.electronic,rec.crafts.metalworking,sci.electronics.design
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OT Minneapolis Collapsed Bridge Pix
"Eeyore" wrote in message ... oppie wrote: "ChairmanOfTheBored" wrote in message You obviously do not know what a hundred tons of concrete can do after a forty foot free fall. For that matter, I always thought railroad track to be rather stiff and immovable. I was watching the mainline tracks behind my office being changed. A crane picked up the loose rail that had been dropped off in 100 foot sections. Looked like a 100 ton piece of cooked spaghetti the way it bent. Go figure. You don't use continuous welded rail over there ? Now that stuff really does look bendy. Graham Yes, the rail is thermite welded to a continuous rail except for insulated signaling joints. They ship it as 1000ft sections though. As nice as the tracks are now, the trains still sound like they have square wheels sometimes. I have to laugh at the railroad when they say how the damage to the wheels was caused by fall leaves on the tracks that caused a slip / stick when braking. Here it is, August in the Northeast of the USA and there are no leaves on the tracks, the wheel shops are supposedly all caught up in re-grinding the wheels on each truck and the trains still come back going 'clump clump clump'. When the new rails were first installed, the trains came by so silently it was amazing. Bad news for anybody walking along the tracks then as it was so quiet that by the time you heard a noise, the train was right by you. I found that out when walking along looking for the bits of track that they cut out when making the signal joints - a nice cross section about .75" long. They made nice book ends and the occasional dolly for bending other metal against. Oppie |
#10
Posted to alt.binaries.schematics.electronic,rec.crafts.metalworking,sci.electronics.design
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OT Minneapolis Collapsed Bridge Pix
On Mon, 20 Aug 2007 14:05:35 GMT, "Oppie" wrote: Yes, the rail is thermite welded to a continuous rail except for insulated signaling joints. They ship it as 1000ft sections though. 1000ft? How? -- |
#11
Posted to alt.binaries.schematics.electronic,rec.crafts.metalworking,sci.electronics.design
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OT Minneapolis Collapsed Bridge Pix
On Mon, 20 Aug 2007 14:05:35 +0000, Oppie wrote:
"Eeyore" wrote in message oppie wrote: "ChairmanOfTheBored" wrote in message You obviously do not know what a hundred tons of concrete can do after a forty foot free fall. For that matter, I always thought railroad track to be rather stiff and immovable. I was watching the mainline tracks behind my office being changed. A crane picked up the loose rail that had been dropped off in 100 foot sections. Looked like a 100 ton piece of cooked spaghetti the way it bent. Go figure. You don't use continuous welded rail over there ? Now that stuff really does look bendy. Yes, the rail is thermite welded to a continuous rail except for insulated signaling joints. They ship it as 1000ft sections though. As nice as the tracks are now, the trains still sound like they have square wheels sometimes. I have to laugh at the railroad when they say how the damage to the wheels was caused by fall leaves on the tracks that caused a slip / stick when braking. Here it is, August in the Northeast of the USA and there are no leaves on the tracks, the wheel shops are supposedly all caught up in re-grinding the wheels on each truck and the trains still come back going 'clump clump clump'. When the new rails were first installed, the trains came by so silently it was amazing. Bad news for anybody walking along the tracks then as it was so quiet that by the time you heard a noise, the train was right by you. I found that out when walking along looking for the bits of track that they cut out when making the signal joints - a nice cross section about .75" long. They made nice book ends and the occasional dolly for bending other metal against. That clack-clack, clack-clack is the wheels going over the expansion joints. In fact, you can hear it coming first from the front of the car, then from the rear and so on. I was in a train once that transitioned from ordinary track to continuous track, and the slience was almost eerie. Thanks, Rich |
#12
Posted to alt.binaries.schematics.electronic,rec.crafts.metalworking,sci.electronics.design
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OT Minneapolis Collapsed Bridge Pix
Rich Grise wrote:
I tried to attach these, but apparently my newsclient or server choked on 2 MB of images. I got them from my brother, who lives in Minneapolis. It just makes me wonder: If you survived such a disaster who is going to pay for your car which probably won't survive (unless it is a Toyota Hi-lux pickup truck)? -- Reply to nico@nctdevpuntnl (punt=.) Bedrijven en winkels vindt U op www.adresboekje.nl |
#13
Posted to alt.binaries.schematics.electronic,rec.crafts.metalworking,sci.electronics.design
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OT Minneapolis Collapsed Bridge Pix
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