Torsion and stiffness
Watch the Twist: A PEMB Bracing Comparison
Two model configurations are shown from the side and from above. Compare the visible twisting and the arrangement of the bracing. The input is applied by hand, so this is a visual comparison, not an equal-force experiment.
Two model configurations are shown from the side and from above. Compare the visible twisting and the arrangement of the bracing. The input is applied by hand, so this is a visual comparison, not an equal-force experiment.
Authored explanation · separate from narration
The concept behind the demonstration
Two model configurations are shown from the side and from above. Compare the visible twisting and the arrangement of the bracing. The input is applied by hand, so this is a visual comparison, not an equal-force experiment.
Keep the model in context
This is a qualitative physical-model demonstration, not a calibrated earthquake test, measured seismic response or building-safety assessment. The original final question, “Did you notice the torsion?”, remains in the video.
Read the visual explanation
Authored viewing notes, not a spoken transcript.
Watch the frame as the base moves
Follow the roof bracing from above
The bracing layout has changed
Compare the visible twisting
Bring it into the conversation
Pause. Compare. Explain.
What changes in the model, and what stays the same?
This is a qualitative physical-model demonstration, not a calibrated earthquake test, measured seismic response or building-safety assessment. The original final question, “Did you notice the torsion?”, remains in the video.
A physical point of reference
Bring the explanation to the table.
Explore the model used for these teaching and customer conversations.
Explore the Training Model