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565 results about "Seismic isolation" patented technology

​​Seismic isolation (SI) has the potential to drastically reduce seismic response of structures, systems, or components (SSCs) and therefore the risk associated with large seismic events (large seismic event could be defined as the design basis earthquake (DBE) and/or the beyond design basis earthquake (BDBE) depending on the site location).

Damping-controllable rigidity-variable shock insulation support

The utility model belongs to a bridge support, and particularly relates to a damping-controllable rigidity-variable shock insulation support. Comprising an upper seat plate, a spherical crown plate, a middle seat plate and a lower seat plate, the upper seat plate and the middle seat plate are positioned and connected through a shear plate and a shear bolt; the limiting mechanism is composed of a limiting check block and a limiting groove, the electromagnetic damping mechanism is composed of a magnet, a high-strength spring and a sheath coil, and the control device is composed of a ground motion sensor, a central processing module and a power supply module. The problems that in the prior art, the overall dimension of a support is too large, and the horizontal rigidity cannot be adjusted and changed once the horizontal rigidity is determined are solved, and the support has the advantages that the overall dimension of the support is small, the horizontal rigidity and damping are adjustable, and cooperative stress under the earthquake working condition of all piers is achieved.
Owner:HEBEI BAOLI ENG EQUIP GRP CO LTD

Separated anti-seismic bridge abutment structure in high-intensity earthquake area

The invention provides a separated anti-seismic bridge abutment structure in a high-intensity earthquake area. The anti-seismic bridge abutment structure comprises a pile foundation; the platform body is mounted above the pile foundation and is connected to the lower part of the main beam through a seismic mitigation and isolation support; the box-type back wall is mounted at the rear upper part of the platform body and is not connected with the platform body; one end of the limiting pull rod is mounted on the transverse partition plate of the main beam, and the other end is mounted on the box-type back wall; the anti-lateral pile is mounted below the box type back wall; the rear portion of the box type back wall and the peripheral sides of the pile tops of the anti-lateral piles are filled with energy dissipation materials. Collision buffering materials are filled between the main beam and the box type back wall. From the perspective of'function separation to improve system reliability ', the vertical bearing function and the horizontal bearing function of a traditional seat-type bridge abutment are separated, and the horizontal bearing structure is specially designed, so that the problems of girder falling and the like caused by insufficient limiting capability of the traditional seat-type bridge abutment on a girder in the longitudinal bridge direction in an earthquake are solved, and the safety of the system is improved. And the anti-seismic requirement is fully met.
Owner:TONGJI UNIV

Seismic isolation system with round wooden column, hole-hidden graphite hardwood, graphite layer and along-column foundation stone

The invention discloses a circular wooden column-hole-hidden graphite hardwood-graphite layer-along-column foundation stone seismic isolation system which is mainly used for seismic isolation and self-resetting of the bottom of a wooden structure circular wooden column. The shock insulation system is composed of a round wooden column, hole-hidden graphite hardwood, concave spherical surface belt limiting edge column foundation stone, a graphite layer and an annular tempered glass sealing plate. The hole-hidden graphite hardwood is composed of a convex spherical section, a thick cylindrical section, a graphite-hidden hole and a thin cylindrical connecting key which are integrally processed, and the thin cylindrical connecting key is inserted into the round hole in the bottom of the round wooden column to achieve positioning butt joint. The graphite layer can reduce the friction force between the convex spherical surface of the hole-hidden graphite hardwood and the concave spherical surface of the column foundation stone. The concave spherical surface of the column foundation stone enables the round wooden column to reset automatically after an earthquake, and the limiting edge of the column foundation stone can limit excessive displacement of the bottom of the round wooden column in the vibration process. And the annular toughened glass sealing plate can be sealed and waterproof. The seismic isolation system has the advantages of reducing the seismic action of an upper structure through bottom seismic isolation of the circular wooden columns and achieving structural toughness seismic resistance through self-resetting after an earthquake.
Owner:KUNMING UNIV OF SCI & TECH

Three-dimensional displacement high-precision monitoring method and system for shock insulation support

The invention relates to the technical field of data processing, in particular to a three-dimensional displacement high-precision monitoring method and system for a seismic isolation support, and the method comprises the steps: obtaining acceleration data of the seismic isolation support in different axial directions and a spectrogram of each axial direction within a preset time period; according to the amplitude distribution condition of each frequency in each axial spectrogram, screening out a seismic main frequency, and according to the amplitude proportion condition of the seismic main frequency in each axial spectrogram, obtaining a relative energy value in each axial direction; correcting the acceleration data of each axial direction according to the correlation between the acceleration data of each axial direction and the acceleration data of other axial directions in combination with the distribution condition and the relative energy value of the acceleration data of each axial direction to obtain corrected data of each axial direction; and determining the three-dimensional displacement data of the shock insulation support based on the integral result of each axial correction data. According to the invention, other interference components can be effectively inhibited, and the monitoring precision of the seismic isolation support displacement data is improved.
Owner:CHANGSHU INSTITUTE OF TECHNOLOGY

Pier column top shock insulation support mounting device and method

The invention relates to the technical field of building machinery, in particular to a pier column top shock insulation support mounting device and method. The device comprises a base, an inclined guide rail, a foldable guide rail, a first hydraulic cylinder, a second hydraulic cylinder, a third hydraulic cylinder, an electric cylinder, a limiting plate, a meshing type pushing chain device and a camera. The method comprises the steps that guide rails are arranged on the two sides of a pier column, the device moves to the construction position along the guide rails, the shock insulation support is moved to the foldable guide rails, the foldable guide rails are adjusted to be horizontal, and the position of the shock insulation support is adjusted, installed and fixed. The mounting difficulty of the shock insulation support can be greatly reduced, the construction efficiency is improved, and the mounting quality is guaranteed.
Owner:CCCC FIRST HARBOR ENG CO LTD URBAN CONSTR ENG CO LTD +1

Vertical variable stiffness three-dimensional seismic isolation bearing

The present invention relates to the field of three-dimensional seismic isolation technology, specifically a vertical variable stiffness three-dimensional seismic isolation bearing, comprising a laminated rubber seismic isolation bearing, wherein the bottom surface of the laminated rubber seismic isolation bearing is connected to an upper connecting plate, a lower connecting plate is provided below the upper connecting plate, and vertical telescopic guide rods are evenly connected between the upper connecting plate and the lower connecting plate; a plurality of tracks are radially provided on the top surface of the lower connecting plate, each track is provided with a slider, and a spring mechanism is hinged on the slider, the spring mechanism is vertically provided and the top is hinged to the bottom surface of the upper connecting plate; a connecting rod is provided between the slider and the center position of the bottom surface of the upper connecting plate, and the two ends of the connecting rod are respectively hinged to the slider and the upper connecting plate. The laminated rubber seismic isolation bearing, track, spring mechanism and connecting rod can meet the engineering requirements of isolating horizontal and vertical seismic motions, have high vertical static stiffness and bearing capacity under static load, have variable stiffness under dynamic load, are lower than the static stiffness, and have good vertical low-frequency seismic isolation effect.
Owner:HEBEI ZHENAN SEISMIC ISOLATION TECH CO LTD

Installation method of liftable isolation bearing

The invention discloses a mounting method of a liftable isolation bearing, which comprises the following steps: pre-burying and fixing a positioning plate on a lower structural member, and enabling the central position of a placing groove and a notch plane to meet preset coordinate and levelness requirements; and the support body is hoisted to the position above the positioning plate, and the shear key is inserted into the containing groove under guiding, so that alignment of the shear key and the containing groove is completed. Torque is applied to connecting bolts arranged between a lower flange plate and a positioning plate in a staged mode according to a preset sequence, the vertical gaps between the bottom face of the lower flange plate and the upper surface of the positioning plate are actually measured at multiple positions after fastening, the bolt fastening state is adjusted according to the vertical gaps, and closed-loop control of torque control, gap measurement and bolt adjustment is formed. And the lift-off gap is accurately controlled within a millimeter-level allowable deviation range of a designed lift-off gap value.
Owner:CHINA CONSTR SCI & IND CORP LTD

Tuned damping method for seismic isolation of pile foundations in deep-water long-span continuous rigid frame bridge

Some embodiments of the disclosure disclose a tuned damping method for seismic isolation of pile foundations in a deep-water long-span continuous rigid frame bridge, which relates to the technical field of shock absorption for bridge engineering structures. It solves the problem that the “pile foundation seismic isolation” of deep-water long-span continuous rigid frame bridges lacks a theoretical quantitative calculation method, making it impossible to fully exert the effect of “pile foundation isolation”. The present disclosure includes: simplifying a deep-water long-span continuous rigid frame bridge model into a 2-degree-of-freedom dynamical model; setting an optimization objective function based on the 2-degree-of-freedom dynamical model; performing parameter optimization based on the optimization objective function; and determining structural seismic parameters of the deep-water long-span continuous rigid frame bridge based on parameters optimized in step 3.
Owner:SOUTHWEST JIAOTONG UNIV

Shock insulation system with vertical stepped quasi-zero stiffness characteristic and design method thereof

The invention relates to the technical field of building seismic isolation, in particular to a seismic isolation system with a vertical stepped quasi-zero stiffness characteristic and a design method of the seismic isolation system. A building three-dimensional seismic isolation system with the vertical stepped quasi-zero stiffness characteristic comprises a horizontal seismic isolation support arranged on the top face of a lower buttress; the positive stiffness system comprises at least one vertical steel spring, and the two ends of the vertical steel spring are connected to the top face of the horizontal shock insulation support and the bottom face of the upper buttress correspondingly. The negative stiffness system comprises a variable-slope guide plate, a horizontal multi-layer annular spring and a supporting plate, the thickness of the variable-slope guide plate changes in the height direction of the variable-slope guide plate, one end of the horizontal multi-layer annular spring abuts against the variable-slope guide plate, the horizontal multi-layer annular spring is connected to the supporting plate, and the supporting plate is connected to the upper buttress; the horizontal multi-layer annular spring can be driven to move along the surface of the variable-slope guide plate by changing the distance between the upper buttress and the lower buttress, and the horizontal multi-layer annular spring moves along the surface of the variable-slope guide plate, so that the length of the horizontal multi-layer annular spring is changed, and then negative stiffness is provided.
Owner:CHINA RAILWAY ERYUAN ENGINEERING GROUP CO LTD +1

High-bearing capacity seismic isolation bearing and manufacturing method thereof

The present invention discloses a high-load-bearing capacity seismic isolation bearing, comprising an external connecting steel plate, an internal connecting steel plate, a stiffening steel plate, and an elastomer, wherein the elastic body and the stiffening steel plate are overlapped between two of the internal connecting steel plates, and the two internal connecting steel plates are fixedly connected to the corresponding external connecting steel plates respectively; the characteristic is that it also comprises an elastic washer, which is arranged between the stiffening steel plates and between the stiffening steel plates and the internal connecting steel plates; the internal connecting steel plates, stiffening steel plates, and elastic washers are all provided with positioning holes for positioning and installation of the three; the elastomer is arranged in the gap between the internal connecting steel plates, stiffening steel plates, and elastic washers, and the elastomer is arranged in the positioning holes of the three. The seismic isolation bearing of the present invention can effectively achieve shock absorption and high load-bearing capacity for structures such as bridges.
Owner:袁涌 +1

A friction pendulum combined three-dimensional seismic isolation bearing using vertical laminated rubber

The present invention discloses a three-dimensional seismic isolation bearing using a friction pendulum combination of vertically laminated rubber, which belongs to the field of seismic isolation technology. The present invention includes a base, a vertically laminated rubber seismic isolation device and a horizontal friction pendulum seismic isolation device. The present invention solves the problem that the existing combined bearings are simply superimposed and combined, which may cause the bearings to be too high, the connections between the components to be loose, and it is impossible to achieve a good three-dimensional seismic isolation effect. The present invention rationally combines the vertically laminated rubber bearings and the friction pendulum bearings, and while achieving three-dimensional seismic isolation, effectively controls the height of the bearings, so that the bearings have good stability and pull-out resistance, can effectively consume and isolate seismic energy, reduce the seismic effects borne by the structure, thereby enhancing the seismic resistance of the structure or equipment and reducing earthquake losses.
Owner:INST OF ENG MECHANICS CHINA EARTHQUAKE ADMINISTRATION

Earthquake isolation structure AMD control system based on earthquake energy storage principle

The invention provides a seismic isolation structure AMD control system based on the seismic energy storage principle, and relates to the technical field of structural engineering and damping control. The bottom of the building dissipates energy through the shock insulation support and the hydraulic inerter damper, earthquake input is converted into gravitational potential energy, mechanical energy and electric energy, and the energy storage module supplies energy to the active tuned mass damper arranged on the top of the upper structure. The system monitors structural response in real time through the acceleration sensor and the force sensor, the AMD intelligent control unit calculates and outputs control force capable of reducing upper vibration and generating reverse overturning bending moment, and therefore structural vibration is restrained and the shock insulation support is prevented from being pulled under the strong shock working condition, and the overall anti-seismic performance of the shock insulation structure is remarkably improved.
Owner:INST OF ENG MECHANICS CHINA EARTHQUAKE ADMINISTRATION

Shock insulation groove system for reducing influence of existing railway on excavation of foundation pit in adjacent area

The invention relates to a seismic isolation groove system for reducing the influence of an existing railway on excavation of a foundation pit in an adjacent area, which comprises a seismic isolation device arranged in a seismic isolation groove between the railway and the adjacent foundation pit, and the seismic isolation device comprises two seismic isolation arms connected through a connecting piece and respectively abutted against two opposite support row piles of the seismic isolation groove, each shock insulation arm comprises a shock insulation support, an elastic rubber pad, a rod piece and a bottom plate, wherein the shock insulation support comprises a lead core, and steel rings and functional rubber rings which are alternately arranged on the lead core; one end of each energy dissipation device is movably connected with the corresponding connecting piece, and the other end of each energy dissipation device is connected with a damping support at the contact point of the supporting row pile and the bottom face of the shock insulation ditch. Compared with the prior art, the vibration isolation system has the advantages that the vibration isolation efficiency and the structural stability are improved, the system durability is enhanced, and the vibration isolation system adapts to diversified vibration scenes and is good in environment adaptability and maintainability.
Owner:SHANGHAI TONGNA CONSTR ENG QUANTITY SURVEYING CO LTD

Friction pendulum isolation bearing performance test device and method

The invention belongs to the technical field of friction pendulum shock insulation support performance testing, and particularly relates to a friction pendulum shock insulation support performance testing device and method.The friction pendulum shock insulation support performance testing device comprises a testing table base, a testing device body is arranged at the left end of the testing table base, and a vertical jack is fixedly installed in the upper end of the testing device body; a mounting plate is fixedly mounted at the telescopic end of the vertical jack, and an upper bearing plate is fixedly mounted on the lower side of the mounting plate through bolts. By arranging the bearing assembly, the output shaft of the first driving motor drives the first driving screw rod to rotate so as to drive the bearing assembly to move left and right, so that a shear performance test is carried out on the friction pendulum shock insulation support; and the output shaft of the second driving motor can drive the driving gear and the driven gear to rotate, so that the lower bearing plate drives the friction pendulum shock insulation support to twist, and then the torsion performance test is performed on the friction pendulum shock insulation support.
Owner:GUANGDONG UNIV OF PETROCHEMICAL TECH +1

Graded energy consumption type seismic mitigation and isolation support

The utility model discloses a graded energy consumption type seismic mitigation and isolation support, and relates to the technical field of seismic mitigation and isolation supports. The rubber support is connected to the bottom of the spherical support; the bottom basin assembly comprises a bottom plate and supporting stoppers, the supporting stoppers are fixed to the periphery of the bottom plate, the ends, away from the spherical support, of the rubber supports are connected with the bottom plate, the rubber supports are located in the supporting stoppers, and threaded holes are formed in the ends, away from the bottom plate, of the supporting stoppers; and the limiting stop block is fixed in the threaded hole in the supporting stop piece through the anti-shear pin, and the inner edge of the limiting stop block protrudes out of the inner side of the supporting stop piece and is used for limiting the spherical support. The graded energy dissipation function is achieved, when a bridge and a building structure normally operate, the spherical support horizontally moves and turns, and friction energy dissipation of the spherical support is mainly achieved; under the action of an earthquake, the rubber support is subjected to shear deformation, and the spherical support and the rubber support are combined to consume energy.
Owner:FENGZE INTELLIGENT EQUIP CO LTD +1

Composite thick laminated rubber seismic isolation bearing with adaptive damping and seismic isolation method thereof

The present application belongs to the technical field of shock insulation support, and particularly relates to a composite thick laminated rubber shock insulation support with self-adaptive damping and a shock insulation method thereof.The technical scheme is as follows: a composite thick laminated rubber shock insulation support with self-adaptive damping, comprising an upper connecting steel plate and a lower connecting steel plate, a steel plate layer, a rubber layer, a pressure sensing layer and a sensor network layer are arranged between the upper connecting steel plate and the lower connecting steel plate, a plurality of fluid cavities are arranged in the rubber layer and are communicated through pipelines; the pressure sensing layer is provided with an electromagnetic coil, a piezoelectric driving unit and a valve body, the valve body is connected with the fluid cavities through a conduit, the electromagnetic coil is sleeved on the valve body, and the electromagnetic coil and the valve body are electrically connected with the piezoelectric driving unit respectively.The present application provides a composite thick laminated rubber shock insulation support with self-adaptive damping and a shock insulation method thereof, which has the functions of intelligent sensing and self-adaptive adjustment and can maintain long-term stable performance.
Owner:CHINA MCC5 GROUP CORP LTD

Assembled building seismic isolation device with movable limiting function

The present invention relates to the field of seismic isolation of prefabricated buildings, and in particular to a seismic isolation device for prefabricated buildings with a movable limiting function, further comprising a bottom plate and a top plate placed above the bottom plate, with seismic isolation supports provided in the centers of the bottom plate and the top plate; a support frame is provided near each of the four top corners of the bottom plate, with a seismic isolation damper provided inside each support frame, the upper end of the seismic isolation damper being rotatably connected to the top plate, and the lower end of the seismic isolation damper being rotatably connected to the bottom plate; a limiting frame is provided above the support frame, with telescopic sleeves uniformly provided circumferentially on the inner side of the limiting frame, and an arc-shaped limiting plate is provided on each telescopic sleeve, and a spring is provided between the limiting plate and the limiting frame, and the spring is sleeved on the outside of the telescopic sleeve. The present invention effectively limits the movement of the seismic isolation damper, thereby slowing down the speed at which the seismic isolation damper wears out during use.
Owner:CHINA MCC22 GROUP CORP LTD

Anti-loosening bracket for seismic isolation device fixing bolts.

To provide a metal fitting for preventing bolt loosening for fixing a seismic isolation device, which completely prevents bolts from loosening physically, improves the safety of a building against earthquakes, and dramatically shortens the work time required for the maintenance. [Solution] The seismic isolation device fixing bolt loosening prevention fitting has a plate-shaped main body, a hole in the center of the main body into which the hexagonal head of the seismic isolation device fixing bolt fits, the shape of the hole is a dodecagonal star or an octadecagonal star, and a locking portion on the periphery that physically prevents the seismic isolation device fixing bolt loosening prevention fitting from rotating.
Owner:青木 弘治

Wind power tower cylinder column section flange connection node and wind power tower cylinder vibration reduction structure system

The invention discloses a tower column section flange connection node and a wind power tower damping structure system, and belongs to the field of wind power, the flange connection node comprises a wind power tower, a first stiffening rib, a second stiffening rib, an inner friction plate, an outer friction plate and a pre-tightening force control device, the wind power tower is in a through shape, the inner side of the first stiffening rib is fixedly connected with an upper column section of the wind power tower, and the outer side of the second stiffening rib is fixedly connected with a lower column section of the wind power tower; the inner side of the second stiffening rib is fixedly connected with the lower column section of the wind power tower drum, the inner friction plate and the outer friction plate are attached to the inner side and the outer side of the first stiffening rib and the inner side and the outer side of the second stiffening rib and are connected through a pre-tightening force control device for providing pre-tightening force, and the inner friction plate, the outer friction plate and the inner side and the outer side of the first stiffening rib and the inner side and the outer side of the second stiffening rib jointly form a friction pair. The device has good seismic mitigation and isolation performance, by means of the characteristic of friction connection and the swing mechanism, the column sections of the wind power tower are connected through the flange joints, and the dual anti-seismic mechanism of friction energy dissipation and vibration reduction and swing seismic isolation is achieved.
Owner:CHINA TOWER CO LTD WENCHANG BRANCH

Adjustable building shock insulation flexible pipeline connecting structure and connecting method

The invention discloses an adjustable building shock insulation flexible pipeline connecting structure and a connecting method.The pipeline connecting structure is used for connecting two adjacent flexible pipelines and achieving flexible transformation and shock insulation buffering of the flexible pipelines, the pipeline connecting structure comprises a main connecting piece and an auxiliary connecting piece, the main connecting piece is arranged on the outer side of the middle of the flexible pipelines, and the auxiliary connecting piece is arranged on the outer side of the middle of the flexible pipelines; the main connecting piece comprises a plurality of limiting discs, a flexible conversion assembly and a connecting plate, a square opening is formed in the middle of each limiting disc, and clamping buckles are arranged on the limiting discs along the inner side edges of the openings; the auxiliary connecting piece comprises a flexible floating flange and an anti-disengaging assembly, the ends of the two adjacent flexible pipelines are connected through the flexible floating flange, and the anti-disengaging assembly is locked and fixed to the ends of the flexible pipelines through hoops. By introducing the design of the flexible transformation assembly, the connecting plate, anti-falling protection and the like, dynamic changes of a building in the vibration or deformation process are fully considered, and it is ensured that the pipeline can be freely adjusted under the action of external force to adapt to changes.
Owner:THE THIRD CONSTR OF CHINA CONSTR EIGHTH ENG BUREAU

Novel seismic mitigation and isolation support

The utility model discloses a novel seismic mitigation and isolation support, which belongs to the technical field of civil engineering, can obviously reduce the shaking amplitude of the support under the action of external force, and can automatically restore to the original position after shaking due to the introduction of an SMA (shape memory alloy) rope, so that the stability and the seismic isolation performance of the support are improved, and the service life of the support is prolonged. The novel shock insulation rubber support has high environmental adaptability and can keep stable performance under different climate and geological conditions, so that the novel shock insulation rubber support can be widely applied to various complex environments, the support has better stability and shock insulation effect, damage and abrasion caused by external force can be reduced, the service life of the support is prolonged, and the service life of the support is prolonged. Therefore, the service life of the support is prolonged, the maintenance and replacement cost is reduced, the SMA is applied to the shock insulation rubber support, an innovative design concept is achieved, the performance of the support is improved through the combination, and a new thought and direction are provided for development of the shock insulation technology.
Owner:GUANGZHOU UNIVERSITY

Variable-stiffness friction slippage anti-swing three-dimensional shock isolation device and shock absorption method thereof

The invention discloses a variable-stiffness friction slippage anti-swing three-dimensional shock isolation device and a shock absorption method thereof, and belongs to the technical field of building shock isolation and shock absorption. According to the technical scheme, the vibration damper comprises a top plate, a horizontal rubber support, a center mass block, a spring support, a limiting plate, a friction plate, a vertical rubber support and a bottom plate. The multi-stage self-adaptive rigidity mechanism has the beneficial effects that the friction material is arranged between the limiting plate and the friction plate, and the friction sliding position and the motion state can be controllably adjusted by adjusting the pre-tightening force of the bolt, the friction coefficient and the rigidity of the vertical rubber support, so that the multi-stage self-adaptive rigidity mechanism is formed; and the shock insulation and self-resetting performance of the structure under the action of horizontal and vertical earthquakes is obviously improved. The device has good three-dimensional shock insulation and swing resistance, and is simple in structure and convenient to install and maintain. The dynamic response of the upper structure applying the device under the earthquake action can be effectively inhibited, so that the structural safety and the use comfort are guaranteed.
Owner:HEBEI UNIV OF ENG

Large-span seismic isolation seam cover plate construction structure

The utility model discloses a large-span seismic isolation seam cover plate construction structure, and relates to the technical field of building structures. Comprising a seismic isolation seam buffering and resetting mechanism arranged in a seismic isolation seam, the seismic isolation seam buffering and resetting mechanism is connected with a building through connecting pieces on the two sides, the connecting pieces are fixed to the building through expansion bolts, anti-seismic dampers are arranged on the two connecting pieces, and a seismic isolation seam cover plate is arranged at the upper ends of the anti-seismic dampers. Through the arrangement of the shock insulation seam buffer reset mechanism and the connecting piece, the shock insulation seam can be supported after a building vibrates and earthquakes, and the structural safety of the shock insulation seam is guaranteed; through the arrangement of the seismic isolation seam cover plate and the connecting pieces on the two sides of the seismic isolation seam cover plate, the movement range of the connecting pieces in the vibration process of a building can be expanded, and the seismic isolation seam cover plate can be suitable for protection of a large-span seismic isolation seam; the problems that a traditional seismic isolation joint cover plate is small in deformation capacity, the deformation requirement of a large-span seismic isolation joint in use cannot be met, and the buffering and resetting effects cannot be achieved in the earthquake process are solved.
Owner:陕西建工集团股份有限公司

Anti-shock structure of active fault crossing tunnel in high-intensity area

The utility model provides a high-intensity area active fault crossing tunnel anti-shock structure, which relates to the technical field of tunnel and underground engineering design and construction, and comprises a tunnel peripheral surrounding rock interval type grouting shock insulation ring, a primary support structure and a secondary lining structure which are sequentially arranged from outside to inside, the joint of the shock absorption layer and the secondary lining structure can adapt to the anti-seismic joint with large deformation, and the reserved space is enlarged through internal clearance. The grouting shock insulation ring is used for filling and grouting gaps of surrounding rock on the periphery of the tunnel through advanced curtain grouting or radial grouting after excavation, the shock insulation effect is achieved, the grouting shock insulation ring has the shock insulation effect, the whole tunnel lining structure is enhanced, the shock absorption buffer layer is arranged on the back of the lining, and the service life of the tunnel lining structure is prolonged. A special waterproof structure capable of adapting to large deformation is arranged in the anti-seismic joint of the secondary lining structure, a structure reinforcing space is reserved in an inner clearance, the influence of the earthquake action on the lining structure can be better consumed, it is guaranteed that a joint waterproof system is intact, running and traveling are not affected, and good economic and social benefits are achieved.
Owner:CHINA RAILWAY LIUYUAN GRP CO LTD

Shock absorption and isolation building support

The utility model provides a seismic mitigation and isolation building support which comprises an upper support, a plane stainless steel plate, a plane wear-resisting plate, a spherical crown and a lower support assembly, the upper support is connected with the upper portion of a bridge structure, and the lower support assembly is connected with the lower portion of the bridge structure or a foundation part; the planar stainless steel plate is arranged on the upper support, the planar wear-resisting plate is arranged on the upper surface of the spherical crown, and the planar stainless steel plate and the planar wear-resisting plate are fixedly connected or can be slidably connected in at least one preset direction, so that the requirements of different application scenes are met, and the application range is wide; the curved surface of the spherical crown is in sliding connection with the lower support assembly. The combination of the upper support, the plane stainless steel plate, the plane wear-resisting plate, the spherical crown and the lower support assembly is adopted, compared with a traditional complex curved surface friction pair design, the whole structure is simple, the design is reasonable, the manufacturing and installing difficulty and the fault risk caused by the complex structure are reduced, the stability and reliability of the building support are improved, and the service life of the building support is prolonged.
Owner:HENGSHUI XIANGXIN TRANSPORTATION TECH CO LTD

Interactive displacement amplification type wide-width seismic isolation device and method for converter station valve hall

ActiveCN121701009BDamperSeismic isolation
The application belongs to power transmission and transformation engineering technical field, and provides an interactive displacement amplification type wide-width isolation device and method for valve hall of converter station. The system comprises a top rubber block, side plates, a transverse energy dissipation device, a connecting rod, a displacement amplifier, a longitudinal damper, a spring piece, a fixing rod and a base. One end of each side plate is connected to two ends of the top rubber block respectively, and the other end of each side plate is inserted into the transverse energy dissipation device to realize transverse displacement through the transverse energy dissipation device. The side surface of the transverse energy dissipation device is fixed on the base with a cavity. The lower part of the transverse energy dissipation device is connected to the bottom surface of the base through the fixing rod. The lower part of the top rubber block is fixed with the connecting rod and forms an integral whole. The lower part of the displacement amplifier is connected to the longitudinal damper. The lower part of the longitudinal damper is an arc surface and is attached to the arc surface of the base. The two sides of the longitudinal damper are respectively attached to a spring piece. The horizontal and vertical vibrations are synchronously and efficiently dissipated.
Owner:SHANDONG ELECTRIC POWER ENG CONSULTING INST CORP

Curtain wall having seismic isolation structure performance

PCT designated stageWO2026106008A1WallsDoors/windowsSeismic isolationCurtain wall
The present invention relates to a curtain wall having seismic isolation structure performance, the curtain wall including: vertical frames arranged at intervals; a plurality of horizontal frames connecting the vertical frames; and vibration prevention connection mechanisms provided between the plurality of vertical frames and horizontal frames to connect the vertical frames and the horizontal frames, wherein each of the vibration prevention connection mechanisms includes: a vibration prevention bracket body which is coupled to a vertical frame and has a hollow part formed therein; an inner elastic bracket which has one end connected to both sides of an inner wall of one end of the vibration prevention bracket body, is formed to extend to the outside of the other end of the vibration prevention bracket body, and has the other end provided as a fastening pipe; a buffer member disposed between an inner surface part of the vibration prevention bracket body and the inner elastic bracket; and a fastening element fastened to a horizontal frame through the fastening pipe.
Owner:TAESUNG ENGINEERING & CONSTRUCTION LTD CO

Automobile rubber pad

The utility model belongs to the technical field of rubber pads, and particularly relates to an automobile rubber pad which comprises a hard rubber frame, supporting springs are fixedly connected to the four corners of the bottom of the inner side of the hard rubber frame, and sliding supporting pieces are fixedly connected to the upper sides of the supporting springs. A center spring is fixedly connected to the center of the bottom of the inner side of the hard rubber frame, a center supporting piece is fixedly connected to the upper side of the center spring, first shaft rods are fixedly connected to the opposite ends of the four sliding supporting pieces, and connecting plates are symmetrically connected to the four ends of the outer side of the center supporting piece; a second shaft rod is fixedly connected to the opposite side of the connecting plate, and the problems that an existing automobile rubber pad shock insulation and impact resistance system is small in bearing, so that the buffering effect is poor, abrasion and impact borne by an assembly are large, and an existing automobile rubber pad is fixed in specification and does not have the extension splicing function, so that the service life of the assembly is greatly prolonged are solved. And the device cannot adapt to the sizes of most components and is relatively inconvenient.
Owner:HEBEI XINSHITAI SEALS CO LTD