Design Settings > Sway & Drift Checks
Sway & drift check settings
Setting | Description |
---|---|
Merge short stacks |
With this setting off the Sway/Drift, Wind Drift & Seismic Drift checks are performed for all column stacks and wall panels irrespective of their stack lengths. With this setting on you can specify a minimum stack length. Note: The ‘Merge
short stacks’ option does not apply to columns/walls where you
have elected to merge stacks manually (via the column/wall
properties).
The following logic is applied to merging stacks when the setting is on:
Note: If a single
stack column or single panel wall length is less than the merge
short stacks limit it is not considered for sway/drift, wind
drift, seismic drift checks.
|
Check wind cases only |
Allows you to set that the wind drift check performed on all columns only considers the effect of the wind loadcases in each wind combination. Clear the setting to consider the effects of all loadcases in wind combinations, such as drift induced by gravity loads. For more information, see: Consider wind cases only for the wind drift check |
Wind Drift Limit |
The limit applied to all columns and walls.
Note: This can be
overridden for specific members as required in the member
properties. Note: A re-analysis is
required if the limit is changed. For more information, see: Set the wind drift limit |
Check for Resultant Wind Drift |
The wind drift check can either be performed in two directions (Dir 1 & 2), or for the resultant wind drift direction only. For new models the default is to check for the resultant direction only. For more information, see: Choose resultant or directional wind drift checks |