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wood framed building wind deflections

wood framed building wind deflections

wood framed building wind deflections

(OP)
We are designing a 5 story wood framed building (four floors of wood on top of a CMU 1st level)with 11' story heights. We would like to use wood shear walls for our lateral resistance system.

What is a good/reasonable maximum wind deflection for this type of building?

In our area of the country the wind controls over seismic. Our code and reference manuals give maximum allowable deflections for seismic but not for wind loading.

Thanks

RE: wood framed building wind deflections

It really depends on the cladding..  search through eng-tips and you'll find several threads discussing this.

RE: wood framed building wind deflections

Some codes (not US) have a L/400 limit.   You should be especially careful if the building has a stucco face.

RE: wood framed building wind deflections

I agree with frv, it depends on the cladding.  In the AISC Design Guide 3 the serviceability requirements (for steel) are checked using the 10 year wind pressures which are 70 - 75% of 50 year pressures.  It seems this approach of 10 year wind would apply to a wood structure as well.

 

RE: wood framed building wind deflections

Sheetrock interior - l/360
Tile on walls - l/600

Mike McCann
MMC Engineering
Motto:  KISS
Motivation:  Don't ask

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