Building drift due to WIND Pressures
Building drift due to WIND Pressures
(OP)
Is there a building code which specificaly addresses and specifies allowable building drift from WIND pressures, similar to the drift from Seismic or earthquake horizontal loads as stated in all the building codes?
If so which code?
If not what are some suggestions to tackle this issue?
If so which code?
If not what are some suggestions to tackle this issue?





RE: Building drift due to WIND Pressures
There are several references to give you some guidelines though. The Commentary to ASCE 7 has a section on serviceability. Also AISC Design Guide 2 is a good resource.
All that being said, a drift limit of h/400 to h/600 under a 10-year return period is common.
RE: Building drift due to WIND Pressures
The ASCE 7 commentary to Appendix B suggests using 70% of the design wind pressure for serviceability drift check, which is approximation of 10 year wind event, as shown in their recommended load combination:
D + 0.5L + 0.7W
where W is the full design wind pressure.
THe drift limits that WillisV listed are the generally accepted limits for wind drift, except you may need tighter drift control if you have brittle wall cladding.
The AISC design guide recommends 75% of the full wind pressure for drift check.
RE: Building drift due to WIND Pressures