bridge collapsed on deerfoot?

[ercchry]

facebook is exploding with something about a bridge collapsing? anyone have the details?

[codetrap]

There's nothing about it on the news. The only bridge collapse around calgary is this one..


http://www.snopes.com/photos/accident/housebridge.asp

[broken_legs]

http://www.calgaryherald.com/Southbound+Highway+closed+until/3195093/story.html

Maybe this: :dunno:


CALGARY - Airdrie RCMP advise that southbound Highway 2 near Cross Iron Mills will remain closed until about 9 a.m. Thursday because of cleanup work on the new bridge.

All traffic on the soundbound lanes in the construction zone will be re-directed onto Highway 566.

The northbound lanes of Highway 2 north of Calgary are not affected

Read more: http://www.calgaryherald.com/Southbound+Highway+closed+until/3195093/story.html#ixzz0rmX8HhZ5

[adam c]

On the radio this morning they were talking about how part of the new bridge for crossiron mills collapsed onto the highway and traffic is being redirected onto the secondary highways

[ercchry]

this is all the info i have :rofl:

Shaun: Bridge collapsed? Only on deerfoot 2 hours ago

Evan: What's this I hear about a smashed bridge on Deerfoot? 45 min ago

[Tik-Tok]

A girder fell down onto southbound QE2 highway

[kaput]

.

[AndyL]

Originally posted by kaput
There were pictures on the morning news. One of the massive support beams looks to have split in half during the lift. It definitely doesn't inspire any confidence in the design or safety of those bridges. How does QC miss such a massive fatal flaw?

Likely the damaged beam was a result of damage during transport or during the lift. I know a couple guys who build these beasts - nothing is left to chance - inspections are rigorous.

Chances are the beams were mishandled at some point - incorrect rigging, damaged during transport, or lifted incorrectly.

They're extremely strong when loaded vertically, but it doesn't take much horizontal load to break one.

[Sugarphreak]

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[g-m]

Originally posted by kaput
There were pictures on the morning news. One of the massive support beams looks to have split in half during the lift. It definitely doesn't inspire any confidence in the design or safety of those bridges. How does QC miss such a massive fatal flaw? Bridges in canada don't generally fall down

[codetrap]

From the AMA Road Reports:
Highway alert: As of 9:20 a m Airdrie RCMP are advising that clean up continues on Hwy 2 southbound at the construction zone for the new Cross Iron Mills overpass. Hwy 2 southbound lanes into Calgary will be closed immediately until approximately 10:30 a m and traffic re-directed onto Hwy 566. Northbound lanes Hwy 2 not affected by closure.

[Aerobat]

God I hate that mall....

[98type_r]

Originally posted by g-m
Bridges in canada don't generally fall down

Montreal bridge collapse (http://en.wikipedia.org/wiki/De_la_Concorde_overpass_collapse)

:dunno:

[Kloubek]

He said "Canada". Not "Quebec". ;)

[barmanjay]

Originally posted by Kloubek
He said "Canada". Not "Quebec". ;)

http://media.tzaam.com/images/full/fd.gif

;)

[FraserB]

Originally posted by Sugarphreak
They were probably slinging it instead of using the proper lifting points, any pictures online yet?

If this is the case, a lot of people will be looking for work tomorrow.

[Sugarphreak]

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[syritis]

CALGARY - Airdrie RCMP advise that southbound Highway 2 near Cross Iron Mills has reopened after a clean-up effort, when construction crews dropped a girder onto the road that caused parts of the overpass to fall and break.

The northbound lanes of Highway 2 north of Calgary were not affected.

Read more: http://www.calgaryherald.com/Southbound+Highway+closed+until/3195093/story.html#ixzz0rp1qKrMT


is it just me or does it sound like they dropped the girder onto the rest of the bridge.

wow i figured that when they lifted the girder if fell onto the highway. but if it took out the rest of the bridge I'm surprised they got it cleaned up so quickly.

[AndyL]

Hard to say from the picture and not knowing the timing... That strap could have been being used to take down the damage... If it was 2 hours later - it was probably already affixed in place, could be part of the cleanup work?

But I can guarantee ya a whole lot of people have their asses in slings today over this... Not like those girders are off the shelf components, likely just caused a 2-3 month delay...

[shtock99]

Bridge girders have lifting points built into them, it was not rigged wrong.. the girder was set in place when it tipped over and landing on its side but still up in the air where its suppose to sit. It then bowed and 4 hours later it broke.

[AndyL]

Set in place? Lifting gear removed when not secured in place?

Ooooh someone's got some 'splainin to do... How'd that get by the safety officer?

[Sugarphreak]

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[syritis]

didn't think the life span of a bridge was 4 hours
http://www.canada.com/calgaryherald/news/story.html?id=cb27c2a3-7229-46c7-8c8c-386aba68825d&k=36547

[FraserB]

Originally posted by shtock99
Bridge girders have lifting points built into them, it was not rigged wrong.. the girder was set in place when it tipped over and landing on its side but still up in the air where its suppose to sit. It then bowed and 4 hours later it broke.

Someone is definitely going to get canned over this. The girders we set in place were always supported until they were affixed to their base plates. It was always a VERY delicate and precise task to get them right, I remember we used 2 500t cranes for the center spans on the Glenmore Res Causeway, even got a police escort to move the girders to site.

SP;

If the girders were like the ones we used, there are two lift points that are cemented into the girder itself, one on each end. Depending on the size and location you can use either one or two cranes to place them. I'll see if I have some pictures, you have probably driven over the ones I worked on hundreds of times already:D

[Sugarphreak]

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[Sugarphreak]

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[whiskas]

The girder has been stored for over a year before being installed. It was already damaged before reaching the site due to warping that occurred from acclimatization during storage.

[Sugarphreak]

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[shtock99]

the girder was not set 100% down, they took 50% of the weight off. So it was down not 100% only 50% so that the guys could tie there shit off and yada yada... they then lifted one end ( the end that is in the picture above), so they could move it over a little bit and when they put that end back down to 50% it started to tip over the operators took some weight cause the one crane was basically right under girder( when the girder broke it missed his upper cab by 18inches).
They figure that the plates they set them on fucked up and that caused the tipping and then 4 hours later they broke in half

[shtock99]

Originally posted by FraserB


Someone is definitely going to get canned over this. The girders we set in place were always supported until they were affixed to their base plates. It was always a VERY delicate and precise task to get them right, I remember we used 2 500t cranes for the center spans on the Glenmore Res Causeway, even got a police escort to move the girders to site.

SP;

If the girders were like the ones we used, there are two lift points that are cemented into the girder itself, one on each end. Depending on the size and location you can use either one or two cranes to place them. I'll see if I have some pictures, you have probably driven over the ones I worked on hundreds of times already:D

We were using a 500t and a 360t and thats exactly what these girders are like aswell ... and sorry I don't have any pictures

girders were made by conforce/armtec.. and I dont believe they were made a year ago its usually made a month before install

[Sugarphreak]

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[shtock99]

Not sure