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Seismic and Wind on connected building

Dest31

Structural
Joined
Jul 9, 2025
Messages
1
I am currently working on a remodel for a hotel complex in Colorado. The project contains 3 separate buildings that are connected with a service tunnel. The main building (on the right) is controlled by seismic (seismic design category B), however, the other 2 buildings (the duplex and carriage house remodel) would be controlled by wind (165 mph LRFD). Since the buildings are connected, would seismic detailing need to be completed for the other wind-controlled buildings?
 

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When you say wind controlled I assume you mean that the base shear due to wind is greater than the seismic base shear. That does not alleviate the need for seismic detailing.

You must ensure seismic detailing is performed at least to the level required based on seismic design category, and MSFRS, regardless of the wind shear amount. The code makes no mention of a wind-controlled building.

So my answer would be yes seismic detailing does need to be completed.
 

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