Bridge colapse in China

[Larry Dickman]

There's LOTS of freeways with single-column support, all over California.

You mean like the I5/I14 interchange. It's only collapsed twice now

 

[EmGo]

You mean like the I5/I14 interchange. It's only collapsed twice now

Has it ? Maybe we need a thread on that then

I was thinking of Junipero Serra, been around about fifty years now, and a bunch of Jetson's-looking space agey stuff that has grown up since.

edit: hmm, maybe Rob should be looking closer to home. The fire part was interesting too ... kind of like the one in the Caldecott tunnel. China does not have a monopoly on irresponsibble truck drivers ?

Newhall Pass interchange - Wikipedia

On a brighter note, this is pretty cool - 8' wingspan eagle !

Spectacularly Rare, Enormous Eagle Shows Up in North America, 5,000 Miles From Home

 

[triumph406]

There's LOTS of freeways with single-column support, all over California. It works fine ... what was supposed to happen was the damn truck with 200 ton load got off the freeway several exits earlier. That's what their approved route was. Plus it appears they were trying to avoid all the weigh stations, too.

Some truckers/riggers/movers are not very smart.

Your right, I drove thru the 91/57 interchange, all single support.

I still think the Chinese bridge should have had double supports based on the distance between the supports along the span, which were maybe double the distance of the 91/57 interchange.

I guess we're all bridge design experts now....

 

[Larry Dickman]

Your right, I drove thru the 91/57 interchange, all single support.

and I'm sure you had plenty of time to observe them

 

[EmGo]

I still think the Chinese bridge should have had double supports based on the distance between the supports along the span, which were maybe double the distance of the 91/57 interchange.

I think the damn truck driver should have got off at the exit he was supposed to !

I'm more interested in what's going to happen to that crew now ... will try to remember to ask the assistant's girl friend who collects policemen what the likely penalty is.

 

[Mark Rand]

How many of them survived?

 

[EmGo]

How many of them survived?

Gossip says they used a fake license to go where they weren't supposed to. Driver died in the crash so supposedly no one will ever know the whole story.

However, I don't think it's a one-person thing. Unfortunately the policeman-collector is between conquests so no help there.

 

[SeymourDumore]

Driver supposedly died in the crash so no one will ever know the whole story.

There! I've fixed it!
Done!
Pro like!
Just like the WuFlu!

( Seymour is going back to suck dick now .... )


Happy New Year Everyone!!!!

 

[EmGo]

There! I've fixed it!

Nah, I think he probably did. After they accidentally dropped that section of bridge on him. Twice

 

[Trueturning]

Nah, I think he probably did. After they accidentally dropped that section of bridge on him. Twice

Twice for emphasis or to see if after the second time the man might be able to be interrogated? This is China after all death should not prevent the investigation going forward and the only thing which has the power to stop that is if the CCP if it decides to do it.

 

[EmGo]

This is China after all death should not prevent the investigation going forward ...

Censorship does not permit ghost stories and other superstitious stuff, so testimony of a zombie would not be allowed

 

[Trueturning]

Censorship does not permit ghost stories and other superstitious stuff, so testimony of a zombie would not be allowed

Right EG yet superstition and folklore are a significant factor. Those who know history do not completely discount such values and nor does a political ideology erase them completely either.

 

[kustomizer]

That replacement bay bridge in California was made in China and has been a giant project to try and repair it since before it was finished being put up. The bolts cast into it to hold it together were not any good and they are patching it as we speak.

https://www.americanmanufacturing.org/blog/dang-the-chinese-made-bay-bridge-continues-to-fall-apart/

 

[EmGo]

That replacement bay bridge in California was made in China and has been a giant project to try and repair it since before it was finished being put up. The bolts cast into it to hold it together were not any good and they are patching it as we speak

That's a cute story. Unfortunately, the anchor bolts were made in the USA.

Those are not the fasteners that hold the bridge together, it would be fine if they were. Those fasteners hold the tower to the foundation. They are made in the US, back east somewhere if I remember right, Pennsylvania maybe ? and stored improperly. Or that's what the fastener mfg says, Caltrans of course says they were not properly processed and are subject to hydrogen embrittlement. The bad news is, now that the tower is on top of them they are impossible to get at.

In this case I kinda feel that Caltrans may be in the right because it's a bridge. It's going to be outdoors. You'd expect the fasteners to be able to deal with a little rain and fog.

US parts, kustom. Installed by US contractors, too. Sorry, China was never closer than 6,000 miles away from those parts. Article is a lie.

Other interesting features about that bridge are that after it was erected, someone took a look at the tower and noticed it was way crooked. (US welding crew), so they ran a cable to the nearest mountain and bent it straight. Ingenious, if nothing else.

They also painted it first, then welded sections together and ground the slag off, so they could paint it all over again.

That article is a good example of an alternate reality - one that never existed. The parts they are bitching about were Made in USA. Installed in USA. And possibly one day Broken in USA because, let's face it, the bolts that hold the tower onto its foundation would seem to be important.

 

[sfriedberg]

EG is correct about the bridge anchor bolts. There was plenty written about it at the time the problem was discovered, in both the popular press and reputable engineering magazines. Defective bolts made-to-order for this project in the USA, absolutely the case.

"American Manufacturing" blog is pursuing their "made in China" narrative way out past the facts in this particular instance.

 

[kustomizer]

Yep, I see that now, Ohio company, went off half cocked

 

[Bill D]

The bolts were made correctly of high tensile steel and the maker told caltrans they had to be heat treated after forged to prevent hydrogen embrittle ent. They offered to do it in house for a fee. caltrans declined and never got them relived.
High strength steel under stress will develop hydrogen embrittlement and start to crack unless it is stress relived or some such. That is what is happening with these anchors embedded in the concrete foundations.
Bill D.

STRUCTURE magazine | Lessons Learned from the Bay Bridge Bolt Failure

 

[EmGo]

"American Manufacturing" blog is pursuing their "made in China" narrative way out past the facts in this particular instance.

There is way too much finger-pointing in the world, and way not enough fixing the problemming. This whole thing of "American products great" is based on the past, before management was all finance guys and "high tech" was where the smart people went, to get in on an IPO for a company that produced nothing but shit but made the first ten "investors" into millionaires.

Face it, the US has lost the program. Writing stories like this lie isn't a solution.

Unfortunately, changing the situation would require looking at what the US has done over the past forty years, recognizing it as a mistake, and changing direction. That doesn't seem real likely.

 

[Larry Dickman]

Little assholes can't make a can opener or a keychain nail clipper that's worth a fuck. What would give anyone the idea they could build a bridge?

 

[EmGo]

Little assholes can't make a can opener or a keychain nail clipper that's worth a fuck. What would give anyone the idea they could build a bridge?

Mouth-breathing sister-fuckers can only play the banjo and ass-rape tourists, what makes you think they're qualified to run the world ?