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Allowable Story Drift

Allowable Story Drift

Allowable Story Drift

(OP)
What is the maximum allowable story drift per AISC? Which section of AISC 13ed Manual talks about it? I would appreciate your response.

RE: Allowable Story Drift

Section L4.

Otherwise, for seismic, use the ASCE 7 limits.

 

RE: Allowable Story Drift

I don't believe AISC addresses issues such as this.  You should go to the building code.

RE: Allowable Story Drift

(OP)
JAE, it is for wind.

nutte, do you know if IBC 2006 address this issue?

RE: Allowable Story Drift

OK..I'll bite.   I now suppose you are asking about drift for seismic (your post didn't mention either wind or seismic).

 

RE: Allowable Story Drift

I don't know exactly where to look in the IBC.  I've checked before, but I've never had much luck.

RE: Allowable Story Drift

Drift limits for wind depend on what cladding you are using, similar to seismic.  I often us h/400 for the 10 year wind as the design criteria for wind.

RE: Allowable Story Drift

Drift limits will depend upon the materials of construction: brick, CMU, glazing, drywall, metal panel, PEMB, etc. It will also depend upon joint placement.

See AISC Steel Design Guide Series 3: Servicability Design Considerations for Low Rise Buildings.

RE: Allowable Story Drift

The ASCE Journal of Structural Engineering had an article in either 1998 or 1988 (there's a smudge on the reference page I'm reading) that is titled, "Wind Drift Design of Steel Framed Buildings: State of the Art Report, Vol 114, No 9, September.  

I haven't read it, but it sounds like it might be a good refernce for you.

RE: Allowable Story Drift

JoshPlum - Do you think you could scan that article and post it here? I looked at the Journal of Structural Engineering website and they only have available back issues to 1990 on the website.  I am designing a low-rise steel building right now and would be interested in reading it.

RE: Allowable Story Drift

Sorry, I don't actually have a copy of that article ("Wind Drift Design of Steel Framed Buildings: State of the Art Report).

I was reviewing a draft of a new AISC design guide (on stabilty design of steel structures) that talked a little bit about drift in the appendix.  Basically the same stuff that others reported (drift limits will often be based on cladding, et cetera).  However, the appendix went on to reference that document.  

I interested in the subject and would like to obtain a copy of the article at some point.  But, I'm a California guy and don't really have an immediate need for wind drift control.   

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