Seismic isolation systems with distinct multiple frequencies

Patent · Mon Jan 01 04:00:00 EST 1990

OSTI ID:867440

Wu, Ting-shu ^[1]; Seidensticker, Ralph W ^[2]

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1. Downers Grove, IL
2. Wheaton, IL

A method and apparatus for isolating a building or other structure from smic vibratory motion which provides increased assurance that large horizontal motion of the structure will not occur than is provided by other isolation systems. Increased assurance that large horizontal motion will not occur is achieved by providing for change of the natural frequency of the support and structure system in response to displacement of the structure beyond a predetermined value. The natural frequency of the support and structure system may be achieved by providing for engaging and disengaging of the structure and some supporting members in response to motion of the supported structure.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• Assignee: United States of America as represented by Department of Energy (Washington, DC)
• Patent Number(s): US 4938633
• OSTI ID: 867440
• Country of Publication: United States
• Language: English

Related Subjects

/405/52/376/
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