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Re: Upgrade Fatigue?

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Carl,

You need to send in your discussion and complaints on AISC 341 to the secretary of the Committee so that it can get on an agenda for discussion. The email address is duncan(--nospam--at)aisc.org.

Davis Parsons

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On 4/10/2013 4:02 PM, Carl W. Jenne, P.E. wrote:
In Florida we've already adopted ASCE 7-10.  The revised wind provisions
with its different wind speeds have been a real hassle to explain to
architects.

Architect:  "What's the wind speed in that location?"  Us:  "It depends.
The wind blows harder on a hospital than it does on an office building."

In order to save us the trouble of multiplying by 1.15 they increased the
physical size of the code and opened a can of worms.  Ever try to explain
mean recurrence intervals to an architect?

Having said that, it's not within our power to refuse to go along. All we can do is kvetch.

Though Florida doesn't have seismic problems (by legislative fiat) we also design in other locations. Here's a dramatically oversimplified
illustration of a AISC 341 catch-22:

In an ordinary concentric braced frame, you’re (theoretically) allowed to use K-braces. In order to make sure you don’t have buckling in the

Truncated 2736 characters in the previous message to save energy.

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