||MFPS is suitable not only as
a base isolator for the heavy full-scale structures
(thousands tons of axial load), but also for
equipments in high-tech facilities, hospitals,
museum, historical buildings and so on.
||The isolation period is dependent only on
the radius of curvature of the concave surface.
The isolation period of 3~5sec is easy to achieve
in an MFPS isolated structure, however, it
could be extremely difficult to achieve it
in a base isolated structure with LRB and HDRB.
||Due to the contribution of the doubled concave
sliding surface, the isolation period of the
structure isolated with MFPS is times that
of the traditional FPS base isolated structure.
The displacement capacity is twice than that
of the FPS device.
||The Teflon-composite with a low friction
coefficient, which is coated on the sliding
surface of the MFPS base isolator possesses
a good durability during thousands cycles of
reversal loading. The maximum friction coefficient
at high velocity is always less than 0.12.
||The MFPS has an excellent earthquake-proof
efficiency whether it is subjected to near
fault earthquakes, strong ground motions at
soft soil-deposit sites, or ground motions
at basins. (The displacements response of LRB
or HDRB may be remarkable in these conditions)
||The maximum sliding displacement of the MFPS
base isolator that is subjected to near fault
earthquakes, strong ground motions at soft
soil-deposit sites and ground motions at basins
can always be controlled within a reasonable
range (always less than 0.5m).
||It is seen from the prototype component test
that the MFPS base isolator is stable during
248 cycles of reversal loadings. (over 4 times
the value prescribed by the rule of building
||The fireproofing capability of the MFPS base
isolator is the same as that of columns, beams,
panels and floors of a structure.