Seismic and impact mitigation devices and systems
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United States of America Patent
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Apr 23, 2013
Grant Date -
Jun 28, 2012
app pub date -
Dec 28, 2010
filing date -
Dec 28, 2010
priority date (Note) -
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Abstract
Systems mitigate structural damage by selectively engaging energy-absorbing structures only during impact events, including aircraft impacts. Systems include lateral dampening devices and/or seismic bearings between a structure and its foundation. Lateral dampening devices include a restorative member and/or reactive member configured to rigidly join the structure and the foundation and dampen reactive movement after the structure moves toward the foundation during an impact event. Seismic bearings include a top plate connected to the structure, a bottom plate connected to the foundation, and a resistive core between the top plate that dampens relative movement between the structure and the foundation. Seismic bearings may include a capture assembly that rigidly joins and dampens reactive movement between the structure and the foundation during an impact event. The structure may further include a ledge into which the top plate seats and dampens reactive movement between the structure and the foundation during an impact event.
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