STRUCTURAL DAMPERS
Example assumptions:
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Applied harmonic wind load:
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The amplitude corresponds to a wind speed of 15 m/s, based on recorded data from similar buildings.
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The frequency matches the natural frequency of the building
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The chosen device stiffness setting reduces the building’s lateral stiffness by 17.5%.
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Assumed inherent damping ratio: 1%
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Adjacent graph: wind-induced steady-state lateral displacements of the roof with & without Struflex dampers.
Enables rocking isolation during seismic events, in addition to normal damping functionality (dual function)
StruFlex adjustable pot bearings can temporarily function as rocking isolators during strong seismic events, and afterward continue to operate as spring & damper systems to mitigate wind-induced vibrations.
Comparison:
StruFlex (base) dampers - VS - roof-mounted mass dampers
StruFlex dampers are x1.5 more effective than a roof-mounted, very heavy mass damper with a 5% mass ratio, and several times more effective than commonly used mass dampers with 1–2% mass ratios.