Hot Rods Can you spell (LUCKY)

Thanks I drive the car alot

 

...my first thot looking at those pics was that that was a flat roof carport, but in the other pic of your sedan I see it was a peaked roof, if it was secured to the building along the rear and had a post or two down the middle, I doubt this would've happened.
good luck also with your rebuild. Cool sedan.

 

i thought it was flat also. which means i see even more wrong construction. no collar ties, joists run the wrong way, not enough joists, under sized lumber, etc........

 

That is pretty funny, and since you got the cars out in time, its ok to laugh!

 

Heck yeah, you're lucky. Now you have a cool place for snowboarding

 

good job! Its a wise man who can learn from his mistakes. At least build some proper trusses and run them in the right direction. That alone would have put the load out on the posts and prevented this. Glad you got the cars out in time!

 

Umm, yeah, it probably would have been fine if it had of had a couple of center posts. Way to large of an unsupported span for the size and type of material used. Glad you got the cars and yourself out safely.

 

66L was that a peaked roof or flat across? Was it a pre built off the shelf thing or custom? It definitely could have used center support front and back as others have said. Perhaps it can be salvaged and reused. Definitely and eye opener...My questions were old news by the time I typed this...You guys are quick...

 

Stogy it was a peaked roof with more than a 1 & 12 built with 8" C- perlins about 29' wide and 25' deep nothing broke the perlins twisted or rolled in the center, I had the material to close in the eve on one end but had not took the time. We had some sleet and freezing rain before the snow and sleet and freezing after the snow.

 

I guess things like this provoke change to building codes. As climate changes things normally adequate can become disasters waiting to happen. Glad again it was minor in the big scheme of things. Back to the drawing board. Take care.

 

You two need to get together, - 31 Dodger could design something better for you !

 

Jeez, get a grip!

 

sorry, i take it back,nothing wrong with that construction.

 

I'm not trying to be an ***hat, but I sure hope the cars you built have a little more safety engineering than the carport did.

 

I don't know if I would have stopped to take a picture before getting the cars out.

 

When you do decide to be an ***hat, skip posting on here, mmmkay.

I've been in the commercial building design business for 27 years. In that time I've had the opportunity to work with dozens of notable Architects and Engineers that have come up with downright dangerous **** and then absolutely denied they were capable of being wrong. Cut this guy some slack already. It fell. He took credit for too much load under gravity for the span. At least he has enough character to own it.

66L, I wish you the best of luck in getting a fresh new carport with a robust design.

 

No problem it is easy to look at the pics and say it was not constructed write, but if anyone owns a metal will look the perlins I used are the same as in most metal buildings, at the peak of the building on the inside of the perlin I put a 1/4 plate for more support where the perlins were put together no welds broke. I will build it back spanning the distance again but I will use a heavier channel for my pitch.

 

If the perlins had been boxed, might this have not happened? (and I do support the idea of cener supports under the peak.)

Roger

 

Folded C perlins are weak laterally and deform/twist when overloaded. Boxing might help, lateral x bracing from perlin to perlin can help resist twist, or trussing the primary frames can help. Just closing in one gable may not have been enough in a 25' run of roof. The middle to the far end still would have been overloaded. Closing both ends at the gable... Maybe enough. Depends on the load and the section sizes.

I'm a big fan of trusses in light gauge steel construction, but I'm a concrete guy so I overkill everything.

 

I think that a truss design of some sort is in order for that wide of a span.
If you build it again, I think is may come down again even if you try to increase size of the material.
If you don't use a truss you will definitely need a few center posts.
A clear span will not work.
As far as I can see the South Carolina building code calls for a carport to be able to withstand 130 mph winds and a 30 pounds per square foot snow load.
I might be wrong but it doesn't look to me like the amount of snow that brought down the roof was even 30 PSF.

 

That design just is not going to work. Without a truss design or collar ties to keep the outer walls from "spreading it will fail. The lower the pitch the more force is place on spreading the walls allowing for the ridge to drop. You got lucky once, please rethink the entire design.

 

Wow, you almost got your Sedan chopped for free.
Even with center posts, I think that much span and distance from the house needs additional pitch.

You could;

1. Lag it to the house a couple of feet higher and have the carport roof pitch away from the house. You'd have to gutter the front so you can enter/exit w/o getting runoff dumped on you. Center posts every 8'.
2. Gable it to match the house roof pitch and use scissor joists.

Aesthetically, either will probably interfere with the upstairs center window. The Wife won't like that, soooooooooooooooooooooooo,

Option 2. would be so expensive that you may as well go with my third (dream) option;
3. Build a 30' x 40' garage off the house! The current garage will be your tool shop or man cave. Hell, make it a 2 story addition and you'll have plenty of room!

 

What part of South Carolina do you live?

As my old pal Deuce Roadster use to say poop happens,the man was lucky to move his cars before the weight took the shed down.

And yes,South Carolina has building codes but often when a individual builds something they don't go through the codes department due to the additional cost and dealing with building and codes guys that you call them and then you have to wait until they feel like coming out.

Right or wrong,the man took the blame for the structural failure and I'm elated his cars weren't damaged.

Sounds very much like you are being one! HRP