re: The new training facility on Burbank that they were building collapsed.

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thats not red paint, thats 50 years of rust already started.

did they store the metal in the swamp before welding it together?

something like this doesnt just happen, most likely it was helped to happen, to collect on the builders insurance

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I haven't reviewed the plans but it appears there is a lot of temporary erection bracing missing. In these pre-engineered buildings it is common to have temporary cable bracing to give the structure lateral stability until all the sheeting is installed. Sometimes that cabe bracing is also permanent, sometimes it is replaced or supplemented with rigid members.

It's pretty clear it was a progressive collapse. Probably no small coincidence we had some pretty heavy winds last week which could have helped weaken the partially erected structure.

I don't know who the metal building erector is but that trade is hit or miss. The good ones are really good and the bad ones are really bad.

Cheapest guy does the best job!

The GC will learn an important lesson as he is paying his deductible on his builder's risk policy to buy a new building frame so he can finish the job.

As far as the rusty primer the building components may have been delivered early and or sat around on a muddy site during the bad weather we've had recently. There does not appear to be enough rust in the pictures to affect the integrity of the members.

You have to brace properly.
Or that will happen every time.

I’ve been watching the progress on my way home from work everyday. I mentioned to my wife the other day that something looked off. I don’t remember seeing or not seeing any cable bracing though.

Sucks for all involved

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What kind of training?

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The correct answer to this question for those over 55 years old is always:

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In these pre-engineered buildings it is common to have temporary cable bracing to give the structure lateral stability until all the sheeting is installed. Sometimes that cabe bracing is also permanent, sometimes it is replaced or supplemented with rigid members

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Yeah, I was gonna say, my shop is inside a pre-fab corrugated metal building and we have cable bracing in several areas of the shop.

I've always wondered if they were supposed to be permanent or if they just forgot to take them down. Probably permanent as the shop is pretty big.

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Wonder if this was the same crew that was involved with the new library design from a few years ago.

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That was an interesting story and was not a pre-engineered building.

It was design errors in engineering and detailing, plain and simple. I don't know who ended up footing the bill but I'd bet whomever's name was on those stamped drawings had to make a claim on his E&O insurance policy.

This is a pre-engineered metal building that comes like a kit. The big beams you see aren't even standard steel shapes, the beams are made out of flat plate welded together. They can be very strong once fully erected but as others have stated, temporary erection bracing is critical.

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temporary erection bracing is critical.

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Same issue that led to the partial collapse of the building in N.O. a couple years ago. Would be interesting to know if the bracing was called for in the plans and skipped over by the contractor, or not.

Looks like a hell of a span without visible diagonal and intermediate supports. Gunna be some lawsuits going back and forth between construction Co., material manufacturer and design engineers.