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US 5,014,474 AGranted
System and apparatus for limiting the effect of vibrations between a structure and its foundation
OwnerEdward R. Fyfe, James M. Kellyinventors
Life of this patent
Estimating the term…
Abstract
Apparatus for limiting the effect of vibrations between a structure and its foundation having two types of elastomeric load bearing pads. One pad has the capability of absorbing vertically and horizontally applied forces. The other pad has the capability of accommodating sliding motion between the structure and the foundation and additionally to absorb horizontally applied forces. The apparatus includes restraining means for limiting horizontal and vertical displacement of the structure with respect to the foundation for reducing failure of the elastomeric load bearing pads resulting from deformation caused by the applied forces.
Claims27
Means for limiting vibrational effects between a structure having an underside and its foundation, comprising:
- (a) a plurality of first apparatuses, each of said first apparatuses having a first load bearing elastomeric element disposed between the underside of said structure and said foundation, said first load bearing elastomeric elements absorbing vertically and horizontally applied forces;
- and
- (b) a plurality of second apparatuses, each of said second apparatuses having a second load bearing elastomeric low friction damping element sandwiched between the underside of said structure and said foundation, said second load bearing elastomeric elements absorbing forces which cause sliding motion between the structure and the foundation.
Apparatus for limiting vibrational effects between a structure having an underside and its foundation comprising:
- (a) an upper load bearing plate member affixed to the underside of said structure;
- (b) a lower load bearing plate member affixed to the foundation;
- (c) a force absorbent elastomeric load bearing element disposed between said upper plate member and said lower plate member for absorbing horizontally and vertically applied forces and for accommodating sliding movement between said upper and lower load bearing plates;
- and
- (d) restraining means for limiting horizontal, vertical and sliding displacement of said elastomeric load bearing element, said restraining means having an upper end connected to said upper bearing plate member and a lower end connected to said lower bearing plate member,
- (e) said elastomeric load bearing element having a central opening therethrough, said restraining means being located within said central opening.
3 more elements
Apparatus for limiting vibrational effects between a structure with an underside and its foundation comprising:
- (a) a member attached to the underside of said structure having a chamber and an opening therethrough communicating with said chamber;
- (b) a first elastomeric load bearing pad having an opening therethrough disposed between said member and said foundation, said first elastomeric load bearing pad being deformable in a horizontal direction to absorb horizontally applied forces;
- (c) flexible cable restraining means having a lower end and an upper end, said flexible cable restraining means being connected to said foundation at the lower end thereof and passing at the upper end thereof through the openings in said first elastomeric load bearing pad and said member to enter said chamber of said member, said flexible cable restraining means being movable in a horizontal direction in response to the deformation of said first elastomeric load bearing pad in the horizontal direction;
- (d) a stop disposed within the chamber of said member and connected to said restraining means at the upper end thereof to engage said member to limit the displacement of said first elastomeric load bearing pad in the horizontal direction caused by vibrations;
- and
- (e) a second elastomeric load bearing pad disposed between said member and said structure for accommodating sliding movement between said structure and said foundation.
3 more elements
Apparatus for accommodating a sliding movement between a structure and its foundation comprising:
- (a) an upper load bearing plate fixed to the underside of said structure;
- (b) lower load bearing plate means fixed to the topside of said foundation;
- (c) an elastomeric low friction damping load bearing pad sandwiched between said upper load bearing plate and said lower load bearing plate means for absorbing forces which cause a sliding movement between said structure and said foundation;
- and
- (d) restraining means connected to said upper load bearing plate and said lower load bearing plate means for limiting the sliding movement between said structure and said foundation.
2 more elements
Apparatus for accommodating sliding movement between a structure with an underside and its foundation comprising:
- (a) a member attached to the underside of said structure having a chamber and an opening therethrough communicating with said chamber;
- (b) a support block having an opening therethrough disposed between said member and said foundation;
- (c) an elastomeric load bearing pad disposed between said member and said structure for accommodating sliding movement between said structure and said foundation;
- (d) flexible cable restraining means having a lower end and an upper end, said flexible cable restraining means being connected to said foundation at the lower end thereof and passing at the upper end thereof through the openings in said support block and said member to enter said chamber of said member, said flexible cable restraining means being movable in a horizontal direction in response to the deformation of said elastomeric load bearing pad during sliding movement;
- and
- (e) a stop disposed within the chamber of said member and connected to said restraining means at the upper end thereof to engage said member to limit the displacement of said elastomeric load bearing pad during sliding movement.
3 more elements
Apparatus for limiting vibrational effects between a structure having an underside and its foundation comprising:
- (a) an upper load bearing plate member affixed to the underside of said structure;
- (b) a lower load bearing plate member affixed to the foundation;
- (c) a force absorbent elastomeric load bearing element disposed between said upper plate member and said lower plate member for absorbing horizontally and vertically applied forces and for accommodating sliding movement between said upper and lower load bearing plates;
- and
- (d) restraining means for limiting horizontal, vertical and sliding displacement of said elastomeric load bearing element, said restraining means having an upper end connected to said upper bearing plate member and a lower end connected to said lower bearing plate member, said restraining means being located outboard of said elastomeric load bearing element.
2 more elements
Apparatus for limiting vibrational effects between a structure having an underside and its foundation comprising:
- (a) an upper load bearing plate member affixed to the underside of said structure;
- (b) a lower load bearing plate member affixed to the foundation;
- (c) a force absorbent elastomeric load bearing element disposed between said upper plate member and said lower plate member for absorbing horizontally and vertically applied forces and for accommodating sliding movement between said upper and lower load bearing plates;
- and
- (d) restraining means for limiting horizontal, vertical and sliding displacement of said elastomeric load bearing element, said restraining means having an upper end connected to said upper bearing plate member and a lower end connected to said lower bearing plate member, said restraining means further comprising:
- (a) an upper threaded member attached to said upper end of said restraining means;
- (b) a lower threaded member attached to said lower end of said restraining member and seats on said lower load bearing plate to be supported thereby;
- (c) an upper nut disposed in threaded engagement with said upper threaded member;
- (d) a lower nut disposed in threaded engagement with said lower threaded member;
- and
- (e) a hollow block in which is disposed said upper nut and said lower nut, the upper end of said hollow block seats on said upper nut to be supported thereby, said lower nut being engaged by the lower end of said hollow block to limit the displacement between said underside of said structure and its foundation.
8 more elements
Apparatus for limiting vibrational effects between a structure having an underside and its foundation comprising:
- (a) an enclosure;
- and
- (b) a first elastomeric load bearing pad disposed within said enclosure, said first elastomeric load bearing pad comprising a plurality of layers of elastomeric material and a plurality of plates interposed respectively between successive layers of elastomeric material for absorbing horizontal and vertical forces;
- and
- (c) restraining means disposed outboard of said load bearing pad for limiting horizontal and vertical displacement between said structure and said foundation,
- (e) said enclosure surrounding said restraining means to reduce the exposure of said restraining means to foreign matter.
3 more elements
Dependencies are inferred from the claim text.