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Kings Island (KI) Discussion Thread

p. 832: Camp Snoopy announced for 2024!

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Here's my diagnosis on this. Keep in mind that this is coming from the mind of a senior one semester away from his Bachelor of Civil Engineering degree, and a member of ASTM, an organization that writes standards for just about everything:

 

This crash sounds like either A) miscalculated wood fatigue or B) a bad piece of wood. Based on the fact that more of the structure didn't collapse when the beam/column let go, I'd say a bad piece of wood. The piece of wood has been loaded cyclicaly since the inception, and it chose sometime after Sunday's inspections to let go. Suddenly, the load distribution pattern changes, and when the first train gets to the weak spot, there is less stuff under the track, and the track deflects beyond the allowable limits. After the train passes by, the track returns to it's normal position until the next train comes along, when it deflects again. On the train, it feels like you are hitting a pothole. Each train that passes over the weak spot hits the pothole harder (and deflects the track further) than the last, and this continues until such time that hitting the pothole caused injuries to riders.

 

Not sure who's going to catch the most heat over this. PKI, RCCA, the PE (professional engineer) who signed off on the plans, the general contractor, or some combination therof.

 

As for your question about the track movement, most woodies (and all structures, for that matter) have a built-in deflection tolerances. The structure is designed to move some amount. The parts on a wooden coaster that are designed to move a large amount on a regular basis must be replaced every so often, as wood is TERRIBLE in fatigue loading.

 

Paul "This is my fifth attempt to post this" Miller

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I know there is no standard of who is responsible for ride inspections, but the Department of Agriculture?

 

It's the DOA in many states that's responsible for ride inspections. Not sure about the history behind how the DOA got responsibility for this, but I think it has to do with the fact that in ancient times (cough) instead of creating a new government office, they picked one that had experience in large machinery. (ie. farm equipment.)

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My theory (on the DOA) is that this became their responsibility as a result of their connection to the local fair system here in OH. Ohio is pretty much know for it's county fairs and having the largest State Fair in the US, which has a ton of rides every year.

 

Shari "That's just my theory, but I'm sticking to it" Shoufler

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Seriously, isn't there a chance (since it already runs steel coaster train stock, basically) that they can keep the wood structure mostly, just change to steel track. Making a 200+ foot steel coaster, hopefully running smoother, and finally giving KI it's "hyper". Think I stumbled on the ultimate solution...?

-James Dillaman

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And PKI sued the manufactorer over it being unsound in the first place. (at least that's what the innitial article said.

Obviously they'd fixed that problem.

 

i imagine Ohio seasons played on that coaster, and due to its height and length, perhaps affected it more than other coasters. Look at how rough the Villian has gotten, and that has a metal frame.

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