Industrial pre-fab steel buildings, lateral wind deflection
Industrial pre-fab steel buildings, lateral wind deflection
(OP)
The canadian steel code S16-09 limits lateral deflection of steel industrial buildings under wind load to H/200.
Wondering if designers of pre-fab steel buildings use a more relaxed limit, and if so how it is justified.
Wondering if designers of pre-fab steel buildings use a more relaxed limit, and if so how it is justified.






RE: Industrial pre-fab steel buildings, lateral wind deflection
RE: Industrial pre-fab steel buildings, lateral wind deflection
Steel frames without cranes: h/150
Columns in single-storey buildings: h/300
Columns in multiple-storey buildings: h/300 and he/500
Where 'h' is the height of the column and 'he' is the height of the entire building.
/mrlc, the metric system, Denmark
RE: Industrial pre-fab steel buildings, lateral wind deflection
An expert is a man who has made all the mistakes which can be made in a very narrow field
RE: Industrial pre-fab steel buildings, lateral wind deflection
RE: Industrial pre-fab steel buildings, lateral wind deflection
However under normal 'serviceability' loads (when you care about deflection) it is likely that you will have some significant rotational restraint capacity under these lower loads.
RE: Industrial pre-fab steel buildings, lateral wind deflection
An expert is a man who has made all the mistakes which can be made in a very narrow field
RE: Industrial pre-fab steel buildings, lateral wind deflection
http://www.mbma.com
Here is an FAQ from their website and their response to same....
What are the limitations on allowable drift (sidesway) in metal buildings?
This topic is addressed in the AISC's Steel Design Guide Series No. 3: Serviceability Design Considerations for Low-Rise Buildings, as well as in the 1996 MBMA Low Rise Building Systems Manual.
The limitations for drift vary, depending on the type of material attached to the framing and the tolerance for movement. For example, for metal panels attached to framing, the recommended maximum drift is between H/60 and H/100 where H is the building height. It is also recommended that the wind load used to compute the drift when checking against these allowable limits should be based on a 10 year recurrence interval, which is approximately equal to 75% of the normal 50 year design wind pressure. For other types of cladding, refer to the references cited for more discussion.
RE: Industrial pre-fab steel buildings, lateral wind deflection