LoneStarEngineer
Structural
When designing a steel moment frame, if the beam is designed to support the full gravity load as a simply supported beam and the connection is designed for moment due to wind only (instead of envelope combinations including Dead and Live), how does this affect the drift? Do we have to check the drift due to just the nominal wind load or can we can we check the drift from the envelope load combinations?
If we are taking the drift from the envelope load combinations, should we design the beam and moment connection for the envelope load combinations as well?
To put things into perspective, for a sample 2-story moment frame, I am seeing a moment of 160 k-ft (from ASD Envelope Load combinations) and the wind moment is just 33 k-ft. I am questioning whether I should design the beam and moment connection for 160 k-ft or 33 k-ft? (After already designing it to support the gravity load)
Appreciate your responses.
Thank you.
If we are taking the drift from the envelope load combinations, should we design the beam and moment connection for the envelope load combinations as well?
To put things into perspective, for a sample 2-story moment frame, I am seeing a moment of 160 k-ft (from ASD Envelope Load combinations) and the wind moment is just 33 k-ft. I am questioning whether I should design the beam and moment connection for 160 k-ft or 33 k-ft? (After already designing it to support the gravity load)
Appreciate your responses.
Thank you.