McDonalds Mansard collapses in GA

• Aug 13, 2013

• #2

JAE

Structural

Jun 27, 2000

15,714

US

Here's a link to the place before the collapse - just zoom in and use the bird's eye view.

Link

 

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• Aug 13, 2013

• #3

JAE

Structural

Jun 27, 2000

15,714

US

Here's a close up view - Link

Looks like a wood framed cantilever awning of sorts that just wasn't anchored down well enough.

 

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• Aug 14, 2013

• Thread starter
• #4

Triangled

Structural

Jun 30, 2013

594

US

I was thinking similarly. Wood mansard trusses, somewhat heavy tile, significant overhang with not much backspan, inadequate anchorage, wind gust......

 

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• Aug 15, 2013

• #5

msquared48

Structural

Aug 7, 2007

14,745

US

Time to inspect and reinforce the rest of it.

Mike McCann
MMC Engineering

 

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• Aug 15, 2013

• #6

Ron

Structural

Sep 24, 1999

16,336

US

This is the sort of stupidity that allows me to pay my son's college tuition (he's smarter than I...he's majoring in something besides engineering!!). Geez...I love forensics.

 

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• Aug 15, 2013

• #7

msquared48

Structural

Aug 7, 2007

14,745

US

Pay me now or pay me later...

Mike McCann
MMC Engineering

 

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• Aug 15, 2013

• #8

IRstuff

Aerospace

Jun 3, 2002

44,895

US

"he's smarter than I...he's majoring in something besides engineering"

meh... I know a BS EECS from Berkeley graduating next year. 5-figure starting with signing bonus, stock options, productivity bonus, performance bonus, AND 3 meals a day ;-)

TTFN
faq731-376

Need help writing a question or understanding a reply? forum1529

 

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• Aug 17, 2013

• #9

dik

Structural

Apr 13, 2001

26,113

CA

Provided by a McContractor, no doubt...

Dik

 

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• Aug 19, 2013

• #10

TXStructural

Structural

Jan 10, 2007

1,033

US

I worked with a guy who's meat and potatoes was evaluating and fixing McD (and other fast food restaurant) wood trusses. There is no doubt that speed and low price result in long term problems if the designers and builders aren't really sharp. Also, plate connected wood trusses are designed to "just barely" survive code-level loads, and the plate connections are vulnerable to the slightest deviation in max load, heat exposure, etc.

 

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