New Board vs Wind

[CP44]

Just talked to a couple guys working on the new board and they said two things

1. Should be done by late July-early August

2. It will be able to withstand a 90mph wind/gust for up to 3 seconds

Also he said the bolts they were putting in were 85 lbs and 5 feet long. Blew my mind

[Haverhill]

So with our luck, there will be a 93 mph wind gust for 4 seconds in late August?

[The_Architect]

Just talked to a couple guys working on the new board and they said two things

1. Should be done by late July-early August

2. It will be able to withstand a 90mph wind/gust for up to 3 seconds

Also he said the bolts they were putting in were 85 lbs and 5 feet long. Blew my mind

Uhh, am I the only one that remembers we've had straight line winds blow through central Iowa in the past 2-3 years around this speed?

[CP44]

Uhh, am I the only one that remembers we've had straight line winds blow through central Iowa in the past 2-3 years around this speed?

I asked them this same question. They said that it is almost impossible to have a gust that high for that long. TIFWIW

[ISUKing]

Seems risky for a higher tornado probability area, but I guess if the stadium gets straight up blasted by a tornado we have other things to worry about...

[CycoCyclone]

I bet we have insurance against wind damage...cheaper than building for hurricane winds.

[4VR4CY]

Iowa State is self insured. So, they do not have insurance for wind.

[isuno1fan]

70mph gusts (1-2 sec) are common, but 90mph sustained for 3 seconds pretty much needs a tornado to come through to get that.

[edr247]

70mph gusts (1-2 sec) are common, but 90mph sustained for 3 seconds pretty much needs a tornado to come through to get that.

Or a cyclone perhaps?

[ISU_phoria]

I worked on a building project in Minneapolis where the structure had a 2 -story, cross walk type structure that cantilevered out the side of the building 175 feet. After hours one night I took one of the bolts they used on the gusset connecting the "bridge" (cross walk) to the main building structure. The bolt I have is about 2'0" long, the main shaft is about 3" in diameter and it weighs about 60 lbs. They used nearly 400 of those bolts on the structure. It was a pretty incredible project to work on.

[The_Architect]

70mph gusts (1-2 sec) are common, but 90mph sustained for 3 seconds pretty much needs a tornado to come through to get that.

Interesting, thanks.

[bos]

I asked them this same question. They said that it is almost impossible to have a gust that high for that long. TIFWIW

Sounds like a challenge.

[wartknight]

i imagine the direction of the wind would play in as well. straight out of north or south would catch it most

[bgprest]

You also have to keep in mind that the 90 mph wind for 3 seconds was probably the minimum design criteria so it was likely actually designed with at least a 1.5 safety factor.

[BirdOfWar]

Looks like the new structure will get it's first test when all those blow hards from Iowa City show up on September 10th.

See what I did there?