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4875314 |
Connection system for preventing uplift of shear walls
A structural connection system for resisting uplift loads on the shear walls for each level of a wood frames structure includes anchors for each level. The system, employed at least at the lateral...
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4873798 |
Apparatus for suppressing vibration of structure
An apparatus for suppressing vibration of a structure. The apparatus includes a tank adapted to be mounted in the structure and a chamber defining mechanism, arranged within the tank, for defining...
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4872649 |
Liquid type mass damper with elongated discharge tube
A new mass damper that avoids the formation of a higher-order resonance by utilizing the inertial resistance of a flowing liquid is disclosed. This damper solves the problem of an additional new...
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4864785 |
Earthquake resistant mobile home support
A mobile home support system is disclosed which uses a plurality of stepped elongated supports, preferably made of railroad ties secured together. The individual supports are placed beneath a...
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4858738 |
System of auxiliary mass dampers to restrain the response of slender elastic structures to vibrations such as from earthquakes
Structures subject to seismic or other vibrations, such as structurally flexible elements of electrical and mechanical power plants, are effectively damped to reduce stresses resulting from such...
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4850268 |
Multi-purpose, mobile laboratory room
A multi-purpose laboratory room for mobile applications. The room comprises a housing structure having an airtight laboratory unit and an entrance unit, an air-conditioning and exhausting equipment...
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4841685 |
Controllable damper
Stress to a flexible structure in a dynamic environment is suppressed by controlling at least one variable parameter of an associated damper in accordance with sensed information as to movement of...
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4835919 |
Impervious shelter made of modules
An impervious shelter is made of tube-shaped modules fitted end to end. The invention pertains more especially to the junction between the facing ends of the modules. Each module has an outer shell...
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4830927 |
Anti-seismic bearing and assembly of anti-seismic bearings
An anti-seismic bearing made up of a plurality of rigid plates and viscoelastic flexible plates laminated alternately, said flexible plates being made of a material characterized by that the...
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4823522 |
Energy absorbing and assembly for structural system
An energy absorbing assembly in which a number of spaced, metallic plate-like elements are coupled together by end blocks and spacers clamped together so that the elements are generally parallel...
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4807840 |
Tuned mass damping system and method
A damping system for attenuating the transverse oscillation of a structure caused by external forces having a countermass attached to the structure by a spring and a coulomb damper. The parameters...
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4805359 |
Method of applying floor vibration-damping work and vibration-damping floor device
A method of applying a floor vibration-damping work and a floor vibration-damping device supporting horizontally displaceably respective supports points of the floor structure on a fixed floor and...
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4801122 |
Isolator for seismic activity
An apparatus for supporting an object on a base for isolating the object from movement of the base, typically an art object, instrument, case, or housing for projection during seismic activity. The...
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4799339 |
Method of controlling building against earthquake
A method of controlling a building against an earthquake according to the present invention comprises the steps of analyzing instantly the earthquake on the basis of data observed by earthquake...
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4793105 |
Earthquake protection system
A system for protecting a building against the forces generated by an earthquake. The superstructure moves horizontally along a system of movable plates provided at the interface between the...
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4786341 |
Method for manufacturing concrete structure
A method for manufacturing a concrete structure such as columns and beams with sufficient reinforcement in the shear strength to be durable against earthquakes, etc. A reinforcing member composed...
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4782541 |
Earthquake protective bed
A protective bed suitable for protecting an occupant or occupants during major catastrophies resulting in falling debris includes a canopy made of steel mesh which is resistant to penetration by...
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4771581 |
Fluid support system for building structures
A liquid support system for separating a building structure from its supporting foundation wall includes a trough-like member extending around the top surface of the foundation wall, an inverted...
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4766708 |
Shock and vibration resistant structures
A shock and vibration resistant structure includes a frame having a plurality of substantially rectangular regions therein. A plurality of modular units are received in the regions. The units have...
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4766706 |
Earthquake protection system for structures
A system for protecting a building against the forces generated by an earthquake. The horizontal movement of the building superstructure relative to the foundation is adjustable to adapt its...
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4763457 |
Shock attenuating barrier
A barrier is constructed from a plurality of cell-like elements interconnected to form a rigid barrier under normal circumstances. The linkages between cells provides a friction-brake force which...
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4761925 |
Anti-seismic rubber bearing
There is provided an anti-seismic rubber bearing made up of a laminate structure formed by bonding a plurality of rigid plates having stiffness properties and a plurality of flexible plates having...
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4752436 |
Nuclear component horizontal seismic restraint
A nuclear component horizontal seismic restraint. Small gaps limit horizontal displacement of components during a seismic occurrence and therefore reduce dynamic loadings on the free lower end. The...
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4744941 |
Antiseismic protection device for solid blocks
Antiseismic support structure for the pile block of a fast neutron nuclear reactor. It comprises a concrete covering slab resting on the reactor building structure. The vessel and components of the...
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4736555 |
Free access type floor
A free access type floor comprising a plurality of floor boards arranged on one and the same plane in a closely connected manner to form a secondary floor, engaging members provided at at least...
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4736701 |
Dynamic vibration absorber
A vibration damping arrangement for a structural member including leaf springs extending horizontally from a vibration absorber body adapted to be attached to the structural member. A set of...
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4735028 |
Earthquake-resistant, removable partition
In order to seal an opening formed in a vertical wall, a removable partition is formed, which is constituted by at least two dry-stacked brick layers. Each layer is formed from several rows of...
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4731966 |
Vibration energy absorber device
A vibration energy absorber device includes a first fixing member fixed to a building bottom wall, a second fixing member fixed to a building foundation, a lead elastoplastic member having...
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4727695 |
Building structure shock isolation system
A building structure shock isolation system is disclosed incorporating aseismic bearings for positioning between major structural components of the building and between such components and the...
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4726161 |
Earthquake isolating support
Apparatus to isolate an object or equipment from earthquake motion comprises: (a) rollable bearing means supporting such structure for lateral motion generally parallel to a support; (b) and...
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4722154 |
Room unit for marine structure
A room unit (1) and a method for the construction and the position mounting of the box-like room unit (1), for instance a cabin, a module assembled from room elements or the like. The room unit...
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4720882 |
Antiseismic stop device for bridge and viaduct girder structures
An antiseismic stop device for girder structures of bridges, viaducts and the like, in which said girder structure is simply resting on the piers, said device comprising separate stop means, one...
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4718356 |
Exterior blast protection for buildings
A system for protecting exterior building walls against damage from pressure waves generated by explosions on the building exterior. Exterior walls are constructed of multiple wall panels mounted...
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4718206 |
Apparatus for limiting the effect of vibrations between a structure and its foundation
Apparatus for limiting the effect of vibrations between a building structure and its foundation is disposed between the foundation and the building structure. A plate is fixedly secured to a lower...
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4717288 |
Flex joint
A flexible structural joint of "flex joint" for use in an articulated structure is disclosed. The articulated structure has a first section and a second section which are located along a...
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4716695 |
Steel framing system for multi-story buildings
A multi-story building structure in which steel elements, secured together in steel-to-steel contact form the bearing walls and transmit the entire static and seismic loads of the walls and floors...
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4716696 |
Resilient pier and footing arrangement
The invention relates to a pier and footing arrangement for storm prone and earthquake prone areas. According to the inventive concept, a flat bottom plate is used to be placed in a pre-dug hole....
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4713917 |
Frictional energy absorbing device and/or methods of absorbing energy
A cyclic shear energy absorber is described for absorbing energy imposed onto the absorber. The absorber consists of a hollow core filled with densely packed granular material. The granular...
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4707956 |
Earthquake insulating building structure
An earthquake-insulating building structure including a structure body and a foundation supporting the structure body, the foundation having a plurality of earthquake-insulating piles embedded...
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4700932 |
Anti-impact safety apparatus for robot
An anti-impact safety apparatus for a robot includes a buffer mechanism disposed between a swivel arm and a working arm of the robot. The buffer mechanism incorporates a converting mechanism which...
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4697395 |
Preuplift technique of anchoring a cylindrical liquid storage tank for lateral loading
Unanchored fluid storage tanks rely primarily on the weight of fluid resting on an uplifted portion of the base plate to balance seismically induced overturning moments. Local uplift is therefore...
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4693045 |
Exhaust stack support arrangement
A support arrangement for an exhaust stack includes an array of beam segments 31 which have their lower flanges 34 rigidly attached to a concrete foundation pad 32, their upper flanges 40 rigidly...
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4687174 |
Device for centering and guiding a roller supporting a heavy component
Device for centering and guiding a roller for supporting a massive component, incorporating, on each bearing face of the supporting components, two centering surfaces and at least one rack which...
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4683691 |
Protective annular construction and method of manufacture
A protective annular construction for protecting surface or subsurface facilities against shock. In one embodiment, the invention utilizes concentric slip formed concrete cylinders, at least...
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4663898 |
Dome-shaped building structure
An improved dome-type structure having a plurality of load bearing rib elements extending upwards from a base and meeting at a common vertex, a roof deck extending over and supported by these rib...
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4662133 |
Floor system for seismic isolation
A floor system for seismic isolation comprises a floor member disposed above a foundation, a plurality of supports for supporting the floor member in a manner to be movable in a horizontal...
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4662426 |
Interlock forming member used in metal casting
The subject of the invention is a one piece interlock forming member used in metal casting, comprising a tapered member adapted to fit in the match plate, which is used in the core or mold forming...
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4662126 |
Vibration resistant explosion control vent
A burst panel assembly for normally covering a vent opening of structure which defines an area to be protected from the buildup of dangerously high internal pressures has two frangible panels...
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4662142 |
Mounting device and method for making a dynamically stiff joint
A mounting device provides a dynamically stiff joint between two structural members, such as a machine foundation and a building structure. One of the structural members is subject to dynamic...
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4651481 |
Progressive shock absorption system for reducing the seismic load of buildings
The present invention relates to a system comprising of motion-damping sandwich elements and energy-absorbing steel mandrels arranged between the building foundation and the superstructure, where...
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