Seismic isolation systems with distinct multiple frequencies

Patent · Mon Jan 01 00:00:00 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 (United States)
• 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

seismic
isolation
systems
distinct
multiple
frequencies
method
apparatus
isolating
building
structure
smic
vibratory
motion
provides
increased
assurance
horizontal
occur
provided
achieved
providing
change
natural
frequency
support
response
displacement
predetermined
value
engaging
disengaging
supporting
supported
provides increased
natural frequency
predetermined value
isolation systems
multiple frequencies
/405/52/376/