38results about "Shock proofing" patented technology

The invention discloses a steel lead lamination node damper which comprises a lead energy consumption plate, a soft steel energy consumption plate, a damper end plate, a damper fixing plate, a steel beam and a steel column. The lead energy consumption plate and the soft steel energy consumption plate are manufactured into a 1/4 arc and are arranged in a lamination mode alternatively. The damper end plate and the damper fixing plate are welded at two ends of the arc respectively, one end of the damper fixing plate is connected with the steel beam through a bolt, and the other end is connected with the steel column through a bolt. The damper has the advantages of being high in initial rigidity and high in material yield dispersion area. No obvious stress concentration exists. The soft steel and the lead have good coordination performance, the material utilization rate is high, and the energy consumption effect is good. Meanwhile, the damper is simple in manufacture and installation, convenient to use, capable of being used for seismic design of newly-built projects and also capable of being used for reinforcement and maintenance of the existing projects.

The invention discloses a self-centering buckling restrained brace end connecting device which comprises an interlayer rubber end plate, an I-shaped connecting plate and friction plates, wherein the I-shaped connecting plate penetrates through the interlayer rubber end plate, and the friction plates are connected to the two sides of a web of the unrestrained end of the I-shaped connecting plate. The interlayer rubber end plate comprises a rubber pad, an end plate, an outer cushion plate and two inner cushion plates, wherein the end plate is arranged on the side, facing the friction plate, of the rubber pad, and the outer cushion plate and the two inner cushion plates are arranged on the other side of the rubber pad. Slots are formed in the web of the unrestrained end of the I-shaped connecting plate in the longitudinal direction, and the I-shaped connecting plate and the friction plate can slide relatively along the slots. According to the connection mode of the self-centering buckling restrained brace end connecting device and a self-centering buckling restrained brace, the restrained end of the I-shaped connecting plate is welded to one end of a core plate and an outer sleeve, the outer cushion plates are in contact with the outer sleeve, the inner cushion plate is in contact with an inner sleeve, and a pre-tensioning rod arranged in the inner sleeve is anchored on the end plate after prestress is applied.

The invention discloses a replaceable connecting beam with a double-security mechanism. The replaceable connecting beam comprises a replaceable member and concrete connecting beams at the two ends ofthe replaceable member, the replaceable member comprises a metal damper, a limiting anti-buckling restrained supporting device, a replaceable member connecting plate and a metal damper connecting plate. According to the replaceable connecting beam with a double-security mechanism, under the action of a large earthquake and a principal earthquake, the metal damper centralizes plastic damage, underthe action of a super-large earthquake or a large aftershock, when the metal damper fails and there is not enough time to replace the metal damper, therefore, the plastic damage is centralized into the replaceable member all the time, and other parts of the structure can be protected against unrepairable damage.

The invention discloses a test device with convenient installation and unloading for testing the dynamic characteristics of a seismic isolation building structure. The device comprises a reaction force wall, a hydraulic jack, a quick disassembly assembly, an auxiliary disassembly assembly, a hydraulic jack support mechanism and a seismic isolation support assembly. The quick disassembly assembly includes a first unloading block and a second unloading block whose connecting ends are inclined surfaces fitted to each other. The hydraulic jack supporting mechanism includes a first supporting plate, a second supporting plate, a horizontal screw and a lifting and leveling assembly. The test device provided by the invention can quickly complete the unloading work of a seismic isolation building during an experiment, so that the seismic isolating building can generate and complete free vibration during an initial displacement test process, and the accuracy and operability of an experiment result are effectively improved. According to the hydraulic jack support mechanism of the device, different types of hydraulic jacks can be quickly installed, a certain degree of initial displacement is applied to the seismic isolation building by using the hydraulic jack, and human and financial resources are saved.

The invention discloses a low-frequency tuned mass damper, and belongs to the technical field of civil engineering structure shock absorption. The low-frequency tuned mass damper comprises spiral steel springs. The spiral steel springs are arranged between a mass block and spring height overlapping arrangement supports and between the spring height overlapping arrangement supports and horizontal supports, or the spiral steel springs are arranged between the mass block and the spring height overlapping arrangement supports, between adjacent spring height overlapping arrangement supports and between the spring height overlapping arrangement supports and the horizontal supports. Height staggered bosses are arranged on the spring height overlapping arrangement supports, and the spiral steel springs on the upper side and the lower side of a same spring height overlapping arrangement support are matched with the height staggered bosses correspondingly so that a part height overlapping statecan be achieved. Damping devices are arranged between the mass block and the spring height overlapping arrangement supports or/and between the mass block and the horizontal supports or/and between theadjacent spring height overlapping arrangement supports or/and between the spring height overlapping arrangement supports and the horizontal supports. The low-frequency tuned mass damper can be suitable for control of structure vibration of 0.5 Hz or even lower frequency.

The invention provides a limiting reset high-seismic-mitigation friction type combined support, and belongs to the field of building structure vibration control. The combined support is formed by combining two movable tensile and compression devices and a fixed mounting sleeve. According to the combined support, when the movable tensile and compression devices and the fixed mounting sleeve move ina reciprocating motion to generate tensile and compression friction, a friction energy dissipation outer plate is driven to realize dissipate energy by adopting the friction tensile and compression energy dissipation plates, a matrix and an energy dissipation material extrude and rub each other so as to effectively improve the energy dissipation effect,a friction-resistant layer is large in friction coefficient, the friction tensile and compression energy dissipation plates overcomes friction to apply work, the friction-resistant layer rubs to realize energy dissipation, so that the energy dissipation efficiency is improved, moreover, the overall safety performance is greatly improved under the cooperation of limiting holes and limiting baffles, an SMA regulating limiting reset wire is arranged, so that the whole can be automatically reset after the load disappears, strong impact load can be dissipated, meanwhile, a stable damping force and an automatic reset function can be providedfor the whole in the tensile and compression direction, a combined structure of limiting reset protection is adopted, so that the overall safety performance is improved, and meanwhile, multiple energydissipation and seismic mitigation effects are achieved.

The invention relates to a nested and filled type particle damper comprising large solid particle units, small solid particle units, buffer liquid parts and buffer material parts. Large particles arespheres, and the large particles are hollow. Small particles can be placed in the single large particle in a suspended mode, that is, the nested and filled type particle damper is formed by nesting the large particles and the small particles, meanwhile, gaps between the large particles and the small particles can be filled with buffer liquid, and buffer materials can be selectively pasted to the inner walls of the large particle units 1. Under the action of wind load, earthquakes and the like, kinetic energy of the structure is transferred and dissipated through friction and collision of largeparticle groups and friction and collision between the large particles and the small particles, between the large particles and the buffer liquid, as well as between the small particles and the buffer liquid, the collision efficiency between the particles can be improved through the nesting form of the large circular particles and the small circular particles, so that dissipation is improved, andthe energy dissipating capacity of the damper is further improved through introducing of the buffer materials.

The invention discloses a buckling restraint support provided with an L-shaped energy-dissipation element, a building and an assembling method, and belongs to the field of external force resisting components for construction structural engineering. The buckling restraint support provided with the L-shaped energy-dissipation element comprises a stretchy inner restraint component, an outer restraint component arranged outside the inner restraint component in a sleeving mode, and the L-shaped energy-dissipation element located between the inner restraint component and the outer restraint component. The inner restraint component comprises a first square steel pipe and a second square steel pipe, and the first square steel pipe and the second square steel pipe are connected in an inserted mode. The L-shaped energy-dissipation element comprises four L-shaped core boards, wherein the two ends of the four L-shaped core boards are connected to the four right-angled edges of the first square steel pipe and the second square steel pipe through bolts correspondingly. The inner section of the outer restraint component is square, the outer restraint component is used for wrapping the L-shaped energy-dissipation element, and a certain gap is formed between the outer restraint component and the L-shaped energy-dissipation element. The buckling restraint support provided with the L-shaped energy-dissipation element is easy to dismount and replace, and the buckling restraint components can be repeatedly used conveniently.

The invention provides a concrete buckling-proof steel plate shear wall for a bottom strengthening zone of a steel structure dwelling. The concrete buckling-proof steel plate shear wall comprises a concrete buckling-proof cover plate and a steel plate wall provided with vertical stiffened ribs; the concrete buckling-proof cover plate is arranged on the outer side face of the steel plate wall provided with the vertical stiffened ribs, so that all cover plate bolt holes are concentrically aligned with corresponding steel plate wall bolt holes; and the tail ends of bolts sequentially penetrate through the steel plate wall bolt holes and the corresponding cover plate bolt holes, and nuts are screwed at the tail ends of the bolts. The concrete buckling-proof steel plate shear wall has the advantages that the concrete buckling-proof cover plate is installed on the outer side of the steel plate shear wall through the bolts, and by adjusting the hole diameter of reserved bolt holes of the concrete buckling-proof cover plate, it is ensured that relative slip can be generated between the steel plate shear wall and the concrete buckling-proof cover plate when the lateral force of the wall reaches a certain value, appearance of a tensile force band of the steel plate shear wall can be delayed due to existence of the concrete buckling-proof cover plate, and the shearing ability, the bearingcapacity and the earthquake resistance ability of the steel plate shear wall can be improved accordingly.

The present invention provides a flyash cement honeycomb composite wallboard building fixed on the ground. The structure comprises a plurality of flyash cement honeycomb composite wallboards fixed on the ground. An I-shaped wall formed through connection of the flyash cement honeycomb composite wallboards is connected to be an I shape and of a right angle. Each flyash cement honeycomb composite wallboard comprises central honeycomb layers, substrates at the two sides, and sound-proof material layers disposed between the substrates and the central honeycomb layers. The central honeycomb layers comprise a plurality of hollow regular hexagon columns connected in a seamless manner, so as to enable the cross section of the central honeycomb layers to be of a regular hexagon honeycomb shape; a top part and a bottom part of the central honeycomb layer are bonded with the sound-proof material layers through a binding material, so as to form a plurality of regular hexagon hollow columns, extending perpendicular to the sound-proof material layers, between the two sound-proof material layers; outer surfaces of the sound-proof material layers are bonded with the substrates through the binding material; and two flyash cement honeycomb composite wallboards are connected through three U-shaped connection frames to form an L shape.

The invention discloses an assembly type bolted connection reinforced wood constraint buckling-restrained brace, comprising an inner core, a peripheral constraint part, a steel filler strip and a filling steel plate; the peripheral constraint part is formed by upper laminated wood and lower laminated wood which are connected by bolts, bolt holes are formed in the laminated wood, the steel filter strip is arranged between the upper and lower laminated wood, and the upper and lower laminated wood are connected into a whole by gluing pressurization; the buckling section and the transition section of the inner core are arranged in the peripheral constraint part, the filling steel plate is arranged between the buckling section of the inner core and the laminated wood of the peripheral constraint part, preformed holes are formed in the filling steel plate, a tiny gas is reserved between the buckling section of the inner core and the filling steel plate, and the filling steel plate is connected with the laminated wood of the peripheral constraint part by gluing pressurization. The brace can improve the ductility and the energy dissipating capacity of the support structure of a wood frame, and assembly type production can be carried out on the brace in a factory, so that field construction work load can be reduced, construction progress can be promoted, connection quality can be ensured, and structure installation is facilitated.

The invention discloses a novel lightweight steel structural plate. The novel lightweight steel structural plate comprises a foundation support, upright columns and steel bodies, wherein the foundation support is trapezoidal; grooves are formed in the foundation support; first shock-absorbing devices are arranged inside the grooves; the first shock-absorbing devices are connected with the upright columns; supporting plates are arranged at the lower ends of the upright columns; second shock-absorbing devices are arranged at the lower ends of the supporting plates; the second shock-absorbing devices are connected with the supporting plates; springs are arranged at the upper ends of the upright columns; the upper ends of the springs are connected with a roof; the lower ends of the springs are connected with the upright columns; the steel bodies are connected with the upright columns; each steel body is divided into a waterproof layer, a fireproof layer and a soundproof layer. The novel lightweight steel structural plate is high in shock resistance, good in wear resistance, light in steel body weight and firm in structure.

The invention discloses a shear type metal damper. The shear type metal damper comprises a core plate, a lower connecting plate, a connecting sleeve and connecting pieces, wherein the connecting sleeve comprises an upper connecting plate and two wall plates, a plurality of position adjusting holes are formed in the wall plates, the connecting pieces penetrate through the position adjusting holes and the core plate, and gaps are formed between the connecting pieces and the position adjusting holes in the vertical direction. According to the shear type metal damper, the core plate is connected with the connecting sleeve through the connecting pieces, on the one hand, the connecting sleeve transmits shear force in the horizontal direction to the core plate through the connecting pieces, so that the core plate generates shear deformation, and on the other hand, when the damper is squeezed or stretched vertically, the core plate can generate relative displacement with the connecting sleevealong with the connecting pieces, so that the axial force is effectively released, the transmission of the shear force is not influenced, the adverse effect caused by vertical axial force is avoided,and the energy dissipation and damping capacity of the damper is improved, and the damper is used in the technical field of damping.

The invention discloses a supporting seat with damping and stabilizing effects for a fabricated building. The supporting seat comprises a supporting base, wherein sliding grooves are formed in the opposite positions of the periphery of the inner wall of the supporting base, limiting rods are fixedly installed inside the sliding grooves, the limiting rods are movably sleeved with buffer spring sleeves and limiting blocks, a mounting base is inserted into the supporting base, the mounting base is fixedly connected with the limiting blocks, a mounting disc is fixedly installed at the bottom of the mounting base, and a movable groove is formed below the periphery of the mounting disc. The sliding grooves are formed in the periphery of the supporting base, so that the limiting blocks are conveniently limited inside the sliding grooves, the stability of the movement of the mounting base is improved, and the limiting rods are sleeved with the buffer spring sleeves so that the limiting blockscan be buffered conveniently under the action of the limiting rods and the buffer spring sleeves, at the moment, the limiting blocks drive the mounting base to move up and down, and the buffering anddamping effects on the building body can be achieved.

The invention relates to a shockisolation support using waste tires. Theshock isolation support comprises the waste tires, natural sand, pebbles and steel wire rope nets, the waste tires are integral intactwaste automobile tires, the waste tires are filled withthe natural sand, and compacting in a layered mode is carried out. The pebbles with hard texture, smooth surface, no cracks and flat shape are buried horizontally in the natural sand in a layered mode. The pebbles are arranged in 3 to 5 layers. Thesteel wire rope nets wovenby steel wire ropes are tightly enclosed the exterior of the waste tires by tightening the steel wire ropes. The difficulties in the promotion and application of a rubber support shock isolation technology in the village and town buildingscan be overcome, and meanwhile, the problem of recycling of the waste tirescan be solved. The performance requirements of a building shock isolation support can be met, theshock isolation support is suitable for buildings with 1 to 5 floors and building height not exceeding 20 m, especially the shockisolation of the village buildings, and the seismic response of ahousestructure can be reducedto a certain extent.

The invention discloses a main-tower-torsion-preventing power transmission tower with a metal damper capable of dissipating energy and hydraulically resetting. The tower comprises a main tower, a lowhanging point rotating arm, a hydraulic metal damper torsion support and a high hanging point support, wherein the low hanging point rotating arm, the hydraulic metal damper torsion support and the high hanging point support are all arranged at the top end of the main tower, and a main tower rotating shaft is installed at the top end of the main tower and sleeved with a low-hanging-point rotatingarm sleeve. According to the main tower torsion preventing power transmission tower with the metal damper capable of dissipating energy and hydraulically resetting, through the dual buffering effect,torsion and vibration borne by the power transmission tower can be effectively reduced, the very good effect of protecting the power transmission tower is achieved, in addition, during maintenance orinstallation, the rotating angle of the low-hanging-point rotating arm can be adjusted, and therefore after an accident happens, the convenience of installation and maintenance is achieved.

The invention discloses a latticed single-row reinforced Z-shaped sectional concrete column and a making method, and belongs to the field of shock absorption and disaster prevention. The concrete column consists of concrete 1, step grid-like common reinforcing meshes 2, latticed single-row reinforced nets 3 and steel ties 4; a reinforcement framework of the Z-shaped column is Z-shaped, and three latticed single-row reinforced nets 3 are welded to form two Z-shaped limbs; the step grid-like common reinforcing meshes 2 are vertically welded at the ends of the two limbs of the Z-shaped latticed single-row reinforced nets; and the steel ties 4 are vertically welded in the centers of transverse horizontal steel bars of the common reinforcing meshes 2. By adopting single-row reinforcement, the concrete column is simple in construction and low in consumption of steel bars; the reinforcement is formed by welded latticed reinforcement sheets, so that the concrete column is suitable for industrialized production; by adopting latticed reinforcement, oblique web ribs have good shearing resistance, crisp shearing damage of the special-shaped sectional short column can be prevented, and the anti-earthquake ductility is improved; the ends of the section of the column are tightly combined with ecological wallboards or ecological wall bricks by using short steel bars, so that the aims of reinforcing the integrity of a house and promoting the integral anti-earthquake and energy dissipation capacity are fulfilled, and the concrete column is suitable for a rural house.

The invention discloses a topological interlocking-based concrete infilled wall with a self-resetting function. The concrete infilled wall is characterized in that an object of a large structure is decomposed into small blocks which are mutually constrained, and the whole is re-constructed through the small blocks, so that better external load and damage resistance can be obtained; the fragmented units are constructed to achieve the mutual constraint condition through special geometrical shape design and are fixed through auxiliary means such as pre-stressed steel bars or pre-compression springs, and finally global constraint is completed through a rigid frame; the problems that an existing infilled wall does not have the self-resetting capacity, local damage often occurs under the action of loads such as impact, and resetting is difficult can be solved; and the effects of the pre-stressed steel bars and concrete blocks are fully exerted, the pre-stressed steel bars bear smaller shearing force in the load acting process, the service life of the structure is remarkably prolonged, the structure has certain displacement tolerance capacity, and it is guaranteed that the whole can be repaired under the extreme load effect.

An active composite variable damping rotational control device includes a variable damping module and a power module. The variable damping module includes a magnetorheological fluid tank and a rotational inertia wheel. The rotational inertia wheel is arranged in the magnetorheological fluid tank fully filled with magneorheological fluid. The power module includes a device tubular cavity, a driver, an encoder and a speed changer. The driver is fixed on the inner wall of the device tubular cavity. The driver, the encoder and the speed changer are coaxial. A driving shaft of the driver passes through the speed changer and extends into the magnetorheological fluid tank to be fixed perpendicularly at the center of the rotational inertia wheel. The control effect of the present invention may not be greatly affected by the change of a structural form and the change of an external load.

The invention relates to a connection joint of buckling-constrained steel plate walls for strengthening an existing frame structure. The connection joint comprises U-shaped hoops, T-shaped steel plates, reinforcing plates, the buckling-constrained steel plate walls, studs and fixing devices; the buckling-constrained steel plate walls are arranged in spans of existing frame beams, and the upper ends and the lower ends are connected with the T-shaped steel plates on two sides through the fixing devices, and the other ends of the T-shaped steel plates are fixed to the reinforcing plates and are fastened to the end parts of existing frame columns through the studs; the U-shaped hoops are arranged at the upper ends and the lower ends of the buckling-constrained steel plate walls, bottom steel plates of the U-shaped hoops are fixedly connected with the T-shaped steel plates, steel plates on both sides of the U-shaped hoops are fastened to both sides of the existing frame beams through studs,and the studs extend into the existing frame beams. The connection joint strengthens the existing frame beams and strengthens the connection between the existing frame and the buckling-constrained steel plate walls, improves the anti-seismic performance of the existing frame structure, and can be pre-made in a factory to facilitate construction.

The invention discloses a ceiling shock absorber. The ceiling shock absorber is simple in structure, easy to install, good in shock absorption effect, high in stability, small in occupied space in theheight direction and capable of facilitating ceiling element installation and positioning and ceiling leveling. The ceiling shock absorber comprises a frame (1) and a main bolt (2); a first through hole (11) allowing the main bolt (2) to penetrate through is formed in the middle of the frame (1); the rod portion of the main bolt (2) faces upwards and penetrates through the first through hole (11)from bottom to top; a fastening connecting part (9) used for being connected with a suspended ceiling is arranged on the upper portion of the rod portion of the main bolt (2); an elastic part (3) isarranged between the main bolt (2) and the frame (1) in a sleeved mode; and ceiling connecting parts used for being connected with ceiling elements (001) are arranged at the left side and the right side of the frame (1) respectively. The ceiling shock absorber is suitable for ceiling shock absorption.

The invention relates to a wall type composite damper capable of improving lateral resistance performance of a modularized building structure and a manufacturing method. The wall type composite dampercomprises an upper structure and a lower structure; the upper structure and the lower structure comprise end plates, connecting plates, clamping plates, rib plates, grooves and copper pieces; the ends of the connecting plates are connected with the end plates, the clamping plates are arranged in the middles of the connecting plates, the connecting plates are connected with the clamping plates through high-strength bolts, the rib plates are respectively arranged on the two sides of each connecting plate, the ends of the rib plates make contact with the end plates, and the other ends of the ribplates extend to the clamping plates; the grooves are formed in the inner side surfaces of the ends of the clamping plates, and the copper pieces are arranged in the grooves and make rubbing contactwith the connecting plates; the construction of the lower structure is completely same with that of the upper structure, and the connecting plate of the lower structure is connected with the connecting plate of the upper structure. The damper is simple in structure, small in plane size, small in thickness and convenient to install, cannot be limited by holes of doors and windows, and can be widelyapplied to the multi-layer structure and the above-mentioned modularized building structure.