154results about How to "Reduce earthquake response" patented technology

The invention discloses a prestress assembly frame structure which comprises floor beams, a floor post and a foundation, wherein the floor post is formed by connecting a plurality of floor post units in sequence from top to bottom, one floor post unit connected with the floor beams is a top post, one floor post unit connected with the foundation is a bottom post, a connecting point between the top post and the floor beams is a beam-post node, a connecting point between two adjacent floor post units is a post-post node, and the connecting point between the bottom post and the foundation is a post-foundation node. Through the improvement on the beam-post node, the post-post node and the post-foundation node, the problems that in a conventional prestress assembly frame structure, the beam-post node and the post-foundation node cannot consume energy effectively under major earthquake, and cannot provide pressed protection for concrete on a pressed area of an interface, and the tendon distribution method is unreasonable are solved, and meanwhile, the problems that the post-post node is inconvenient to accomplish, and an anti-shearing weak part is formed on a connection interface are solved.

The invention discloses a three-dimensional composite friction pendulum vibration isolator based on a nonlinear energy trap. Structural vibration frequency is staggered away from seismic oscillation dominant frequency and a large amount of seismic oscillation input energy is absorbed by using the characteristics of attenuation and absorption of vibration energy, absorption of vibration frequency bandwidth and the like existing in the nonlinear energy trap as well as a vertical vibration isolation disk-shaped spring, so that the multi-dimensional seismic response of a structure is reduced, and seismic hazards of building structures are prevented. The three-dimensional composite friction pendulum vibration isolator comprises a metal sliding sleeve, a disk-shaped spring, a polytetrafluoroethylene sliding joint, a nonlinear energy trap and pile caps, wherein the disk-shaped spring is arranged in the metal sliding sleeve; the polytetrafluoroethylene sliding joint is arranged on the disk-shaped spring; the polytetrafluoroethylene sliding joint is in relative sliding contact with an upper pile cap through a polytetrafluoroethylene coating; the side face of the nonlinear energy trap is connected with the disk-shaped spring through a rigid spring; the nonlinear energy trap is in rolling contact with a lower pile cap through a rolling shaft; sliding surfaces of the upper and lower pile caps are spherical surfaces. The three-dimensional composite friction pendulum vibration isolator is used for resisting possible violent earthquakes.

The invention belongs to the structural engineering technical field, particularly to a friction-type limitation tilting shock absorption post. The upper and the lower posts of a device are in splicing connection; posts are connected with a splice plate through a high strength bolt, and a ribbed stiffener is arranged on the splice plate on the outer side of a section steel post flange; the section steel post provides vertical bearing force and restoring force, so that the sliding generated by the friction force between the section steel post and the splice plate can be overcome to enable the upper structure to tilt; the arrangement of an oblong hole stops the structure from tilting, thereby enabling the side displacement of the structure not to be too large and preventing the structure from tilting; and the friction between the section steel post and the splice plate can dissipate the earthquake energy, and a friction sheet can increase friction effect and transfer the vertical force through the friction when the posts are fixed. The invention has the advantages of structure side-displacement limitation, small residual deformation, good shock resistance performance, ductility, hysteretic energy consumption capacity, convenient installation and replacement, installations on different floors, and realization of tilting of local floors. Therefore, the shock absorption post is an excellent structural member with shock resistance and energy consumption.

The invention discloses a flexible energy-consumption frame filling wall, comprising an upper frame beam (1), a lower frame beam (2), a left frame column (3), a right frame column (4) and partition wall strip plates (5) which form a frame structure. A U-shaped steel plate groove (6) with a downward opening and a U-shaped steel plate groove (6) with an upward opening are respectively fixedly arranged on the beam bottom lower side of the upper frame beam(1) and the beam top upper side of the lower frame beam (2) opposite to the upper frame beam (1), the partition wall strip plates (5) are vertically arranged in the U-shaped steel plate grooves (6) and are connected with the U-shaped steel plate grooves (6) via bolts (7), gaps (8) are respectively formed among two ends of each partition wall strip plate (5) and the bottom of the corresponding U-shaped steel plate groove (6), among the partition wall strip plates (5) and among the partition wall strip plates (5), the left frame column (3) and the right frame column (4), and adhesive elastic materials (9) are filled in the gaps (8). The flexible energy-consumption frame filling wall is simple in structure, low in cost, fast and convenient in installation, high in deformation ability and wide in application range, and can provide additional damping.

The invention relates to a double-face inclined rib anti-buckling damping steel plate wall. The double-face inclined rib anti-buckling damping steel plate wall comprises a built-in steel plate, inclined steel plate reinforcement ribs, steel base plates, steel columns, steel beams, angle plates and base plates, wherein the inclined steel plate reinforcement ribs are arranged on two sides of the built-in steel plate and are respectively parallel to diagonals of the built-in steel plate; the inclined steel plate reinforcement ribs on the same side are parallel; the inclined steel plate reinforcement ribs on the opposite sides are crossed; the inclined steel plate reinforcement ribs on the two sides are connected with the built-in steel plate through bolts, nuts and the steel base plates at the crossed part of the inclined steel plate reinforcement ribs; the built-in steel plate is connected with the steel beams through the bolts; the bolts are arranged at crossed parts of the inclined steel plate reinforcement ribs; the base plates are arranged between the inclined steel plate reinforcement ribs; and the angle plates are arranged on the outer sides of the inclined steel plate reinforcement ribs and the outer sides of the base plates. The double-face inclined rib anti-buckling damping steel plate wall is relatively high in vertical rigidity and horizontal rigidity; the earthquake resistance performance of a steel plate shear wall is improved; the steel plate shear wall and a damper are combined; and the double-face inclined rib anti-buckling damping steel plate wall can be widely applied to damping and earthquake resistance of steel structures and reinforced concrete structures.

The invention provides an integrally assembled type frame structure housing system, and relates to the building technology of concrete structure industrialized residences. The system is characterized in that a load-bearing frame is formed by superposed beams and cast-in-place columns; separating damping type prefabricated stairs are adopted to serve as stairs of the system; floor slabs are prefabricated superposed floor systems; prefabricated infilled wall boards serve as infilled walls. Equivalent rigid joints are calculated for beam column joints through column cast-in-place, and hinged joints are calculated through the situation that grooves are preset in main beams through primary and secondary beam joints and then poured; calculation assumption of absolute rigidity in planes of the floor systems is achieved through prefabricated superimposition of beam slabs; a core clamped self-heat preservation hanging plate technology is adopted in an outer wall, a light batten with large holes serves as an inner wall, the grooves are reserved in the slabs and connected through steel dowel grouting, the inner infilled wall boards and the outreinfilled wall boards are flexibly connected with a body, and negative influences of the infilled walls on frame earthquake prevention can be effectively eliminated. The system can be well anti-seismic, is convenient and fast to construct, saves energy, protects environment and shortens the construction cycle.

The invention relates to a construction method for a tunnel damping structure in earthquake areas, which is characterized in that a damping layer (2) is laid on the surrounding rock of the tunnel portal section and the surface of an early support (1), which comprises an elastic material; the longitudinal length of the damping layer (2) is 15-50 meters; then a secondary lining (3) is constructed outside the damping layer. The construction method for a tunnel damping structure in earthquake areas has the advantages of good damping effect, simple construction and low cost, thus effectively avoiding the damage caused by earthquakes to the tunnel.

The invention relates to the technical field of frame and support structures, in particular to a repair-free self-resetting friction energy-consuming support. By the repair-free self-resetting friction energy-consuming support, earthquake inputting energy can be consumed by friction between a first friction plate and a second friction plate in a friction energy-consuming mechanism when an earthquake happens, earthquake response of a main body structure is reduced, after earthquake action, the support can recover to an initial state under the effect of a self-resetting mechanism, and residual deformation of the whole structure is reduced and even eliminated. Moreover, compared with the existing self-resetting support, the repair-free self-resetting friction energy-consuming support can still guarantee stable friction energy consumption under repeated reciprocating action, can still be used after the earthquake, and does not need to be repaired after the earthquake. In addition, the repair-free self-resetting friction energy-consuming support is simple in structure and convenient to mount; a construction technology is simplified greatly; and requirements of architectural industrialization are met.

The invention discloses a fiber reinforce plastic (FRP)-rubber-steel composite pipe concrete structure. The structure is characterized by comprising an FRP layer (1), a rubber layer (2), a steel pipe (3) and core concrete (4) from outside to inside, wherein the FRP layer (1), the rubber layer (2) and the steel pipe (3) are stuck by resins to form an integral composite pipe; the core concrete (4) is filled in the composite pipe; and the composite pipe applies constraint enhancement effect on the internal core concrete (4). The invention overcomes the defects of the known steel pipe concrete and FRP pipe concrete structure, has the advantages of large bearing capability, high ductility, devisable yield platform and post-yield enhanced secondary rigidity, large bearing capability reserve, high damping performance and high durability, particularly has perfect earthquake resistance and good capability of absorbing vibration load energy under seldom occurred earthquakes, and can be applied as components of columns, piers and the like in the field of civil construction structure.

The invention discloses a U-bar isolation anti-buckling energy dissipation support. The U-bar isolation anti-buckling energy dissipation support comprises a restrain steel pipe, energy dissipation I-shaped bars and an isolation U-bar, wherein both ends of the restrain steel pipe are provided with the energy dissipation I-shaped bars; one end of each energy dissipation I-shaped bar is arranged in the restrain steel pipe; side isolation U-bars are arranged on both sides of the web of each energy dissipation I-shaped bar; the outer side of the flange of each energy dissipation I-shaped bar is provided with an external isolation U-bar; the other end of each energy dissipation I-shaped bar is positioned out of the restrain steel pipe; both sides of the web of each energy dissipation I-shaped bar are fixedly connected with a reinforced steel plate; both ends of the restrain steel pipe are provided with end plates; and filling restrain concrete is poured between the inner side of the end plate and the restrain steel pipe. By adopting an effective isolation way, the restrain concrete is prevented from being damaged, and the energy dissipation capacity is remarkably improved. The U-bar isolation anti-buckling energy dissipation support has the advantages of strong in energy dissipation capacity, simple in processing and convenient in installation, and has favorable earthquake resistance, ductility and hysteretic energy dissipation capacity, and the earthquake response of building structures is reduced to the maximum extent.

The invention discloses an aseismic strengthening structure and an aseismic strengthening method for a reinforced concrete frame. A reinforced concrete column is additionally and closely arranged outside each outer column of the reinforced concrete frame, and a pile foundation is arranged below each reinforced concrete column. The side wall of each reinforced concrete column and the side wall of the corresponding outer column of the reinforced concrete frame are connected through a plurality of metal dampers in uniform intervals from the top, and the bottom of each reinforced concrete column is connected with a bearing platform through a rocking device and four pre-stressed steel bars close to a pin key. By the aseismic strengthening method, the problem that the reinforced concrete frame fails to realize a 'strong column and weak beam' failure mechanism in earthquake is solved; the metal dampers dissipate earthquake energy, cut down earthquake response and is replaceable after the earthquake; by the post-tensioned pre-stressed steel bars, the aseismic strengthening structure is enabled to restore, and quickness in post-seismic recovery of the structure is realized; since the aseismic strengthening method is completely carried out outside buildings, a series of problems caused by indoor construction can be avoided.

The invention discloses a two-stage work metal energy dissipation device. A core energy dissipation assembly comprises a shearing type energy dissipation assembly and a bent energy dissipation assembly; the shearing type energy dissipation assembly comprises two rectangular low-yielding steel sheets fixedly connected with an upper top plate and a lower bottom plate, and the two rectangular low-yielding steel sheets are arranged in parallel; the bent energy dissipation assembly comprises a plurality of bent energy dissipation steel sheets fixedly connected with the upper top plate and the lower bottom plate, the bent energy dissipation steel sheets are parallel with one another and arranged between the two rectangular low-yielding steel sheets in a spaced mode, and meanwhile the bent energy dissipation steel sheets are perpendicular to the two rectangular low-yielding steel sheets. According to the two-stage work metal energy dissipation device, common steel and low-yielding-point steel are combined for use on a materials according to the idea that bent yielding displacement is larger than shearing yielding displacement, the number of bent plates and the number of shearing plates are reasonably set, it is guaranteed that the device can perform yielding work in the two stages of a small earthquake and a large earthquake, structural damage is avoided, and the protection function is achieved.

The invention relates to an energy-consuming shock absorber, belonging to the field of construction. The energy-consuming shock absorber mainly comprises an anchor fixing plate, a power resistance cable and an energy-consuming cable. The anchor fixing plate is welded nearby the underneath of an inflection point of a framework column in a bottom layer, the upper ends of the power resistance cable and the energy-consuming cable are connected with the anchor fixing plate by components of the anchor fixing plate, a cable wire connector and the like, and the lower ends of the power resistance cable and the energy-consuming cable are fixed under ground. The energy-consuming shock absorber has simple structure, convenient construction and reliable power transmission, as well as simple replacement and maintenance in the condition of being destroyed by the earthquake, thus being capable of being used for reducing the earthquake response of the framework structure, and preventing or reducing the damage of the bottom layer column of the framework structure under the earthquake.

The invention relates to a detachable U-shaped corrugated belt double-layer inclined-slit steel plate damper, and belongs to the technical field of civil engineering energy dissipation and shock absorption. The metal damper is composed of a plurality of U-shaped energy dissipation parts, double-layer inclined-slit steel plates, an upper cover plate and a lower cover plate. The metal damper is based on the design concepts that multidirectional energy dissipation is achieved, energy dissipation parts are detachable, the shear bearing capacity is improved, out-of-plane buckling is restrained, multiple shear energy dissipation mechanisms work cooperatively, and a double-insurance mechanism is adopted, and the limitation of a traditional metal damper is broken through. U-shaped energy dissipation units are connected in parallel, so that the multidirectional energy dissipation of the damper is effectively realized. Through a reasonable design, the damper can achieve multi-position yield, theenergy dissipation performance is stable, and the shear bearing capacity is greatly improved. The U-shaped energy dissipation parts and the double-layer inclined-slit steel plates dissipate energy together to form the double-insurance mechanism. After an earthquake, the normal use function can be recovered only by replacing the energy dissipation parts. The metal damper develops towards the assembling direction, is easy and convenient to replace and obvious in economic benefit, can be effectively combined with a support, and provides lateral force for the support.

The invention relates to an energy-dissipation strut system consisting of energy-dissipation steel plates and an inclined strut and a construction method thereof, which belong to the technical field of energy dissipation devices. The energy-dissipation strut system is arranged in a rectangular area formed by enclosure of structural beams and structural columns, and comprises an stiffening energy-dissipation steel plate and a bidirectional inclined strut, wherein the stiffening energy-dissipation steel plate is composed of an energy-dissipation steel plate, frame steel plates arranged around the energy-dissipation steel plate, and stiffening plates arranged at the two side surfaces of the energy-dissipation steel plate, and the stiffening energy-dissipation steel plate is arranged at the top surface of the bidirectional inclined strut by a connecting piece. The energy-dissipation strut system and construction method thereof provided by the invention solve the problem of energy-dissipation and strutting integration, have the advantages of simple structure, low cost, convenience in construction, and the like, and can be widely applied to the energy dissipation and shock absorption of steel framed structures and concrete framed structures.

The invention discloses an SMA (shape memory alloy) bar assembled self-resetting damper, belonging to the field of buildings. The damper comprises a first restraining plate, a second restraining plate, a bottom plate, a core plate, an upper cover plate, a lower end plate, SMA bars and a dissipative cell; the lower ends of the first restraining plate and the second restraining plate are fixedly connected with the bottom plate, ribbed angle steel plates are fixedly arranged at the inner sides of the first restraining plate and the second restraining plate, and a connecting plate is fixedly arranged at the lower surface of the bottom plate; the core plate is located between the first restraining plate and the second restraining plate, an upper driving block and a lower driving block are fixedly arranged on the core plate, the upper cover plate penetrates the core plate and is located above the first restraining plate, the second restraining plate and the upper driving block, the lower endplate penetrates the core plate and is located below the lower driving block and the two ribbed angle steel plates, and the SMA bars penetrate the upper cover plate and the lower end plate and are fixed; the dissipative cell is located between the first restraining plate and the second restraining plate and is fixed. The SMA bar assembled self-resetting damper, provided by the invention, has highshock resistance and high stability, and ensures the energy dissipation and self-resetting ability of the SMA bars under the two states of pulling and pressing.

The invention belongs to an assembled high-rise or super high-rise residential building with high safety and comfort. The technical scheme adopted by the invention is as follows: the building comprises a main structure and a plurality of building units (4) and is characterized in that the main structure comprises a shear wall (1), a plurality of main frame girders (2) and floor slabs (3), wherein the plurality of building units (4) can be hierarchically assembled on each floor slab (3); and each building unit (4) comprises a unit frame girder (41), a unit frame column (42) and a unit floor slab (43). The invention has the beneficial effects that (1) an optimized high-rise or super high-rise residential building is provided, the building is of a mammoth structure, the main structure is a reinforced concrete shear wall structure, and each building unit is of a light steel structure; and (2) because the assembled construction is adopted by each building unit, the construction can be carried out respectively according to the needs, and the alternate construction between the main structure and each building unit can be realized, thereby greatly improving the operating efficiency.

The invention discloses a demonstration device for simulating building earthquake isolation, which includes a vibration base and a building model arranged on it. The vibration base includes a base body and an attachment support plate, and the attachment support plate is swingably installed on the base body. The attachment support plate and the base are connected with an elastic swing reset member. The building model includes N floor modules stacked layer by layer from bottom to top, and the floor module on the lowest floor is fixedly connected with the attachment support plate. When the invention simulates earthquake damage, the attachment support plate swings laterally relative to the base, and the building model on it is deformed due to the swing, and this deformation is directly reflected on the deformed wall plate, so that observers can observe it intuitively and vividly In view of the destructive effect of the seismic shear wave on the building model, the external force is removed after the simulation, and the attachment support plate can be driven by the swing reset part to return to its original position, which is convenient for the next simulation observation.

The invention relates to a metal and composite laminated damper. The metal and composite laminated damper comprises a metal tube and connecting pieces correspondingly located at two ends of the metaltube, grooves are formed in the two connecting pieces, the end parts of the metal tube are fixedly and hermetically arranged in the grooves, the metal tube is filled with a plurality of viscous-elastic material layers and a plurality of rigid material layers, and the viscous-elastic material layers and the rigid material layers are sequentially and crosswise arranged up and down. The metal and composite laminated damper is a novel combined type metal damper, joint energy dissipation is achieved by using multiple energy dissipation mechanisms, the energy dissipation mechanisms are definite, andvarious energy dissipation capacities are achieved; the yield displacement is small, and the ductility performance is excellent; the performance is stable, and the energy dissipation efficiency is high; and installation and disassembly are convenient, and the arrangement is flexible.

The invention discloses an interlayer shear type underground structure shock-isolation shock-absorption system. The system comprises an underground structure, all layers of structure bodies of the underground structure are connected through rolling supports, and shear glide can be generated among all the layers of structure bodies; a limiting device is arranged on the side of the underground structure and used for preventing interlayer shear deformation from being too large, a plurality of shock-isolation pads are arranged at the bottom and the side of the underground structure in a matched mode, each shock-isolation pad is correspondingly provided with one supporting column used for providing rigid bearing force for the shock-isolation pad, one end of each shock-isolation pad is fixedly connected with the underground structure, the other end of each shock-isolation pad is fixedly connected with the corresponding supporting column, and the portion between the underground structure and a soil body is filled with foam resin. The system has the advantages that the shock-absorbing effect is good, resonance is avoided, seismic energy transmitting into the structure is limited, the seismic response of the structure is reduced, and safety of the structure is guaranteed.

The invention provides a masonry structure-based isolated structure, which comprises a building blocks layer and an isolated layer in vertical alternating arrangement, wherein the building block layer comprises an upper reinforcement mortar layer, building blocks, and a lower reinforcement mortar layer; and the isolated layer is located between the adjacent two building block layers. The whole isolated structure is arranged between a foundation top surface and the superstructure, thus, the structure can bear most of deformation of the whole building under the action of earthquake so as to ensure safety and reliability of the superstructure. The building block layer only generates horizontal rigid motion at the time of suffering the earthquake; and the isolated layer arranged between a foundation top surface and the superstructure generates horizontal shearing deformation, which restrains the horizontal motion of the building block layer, thereby having isolating function and limit effect. The invention has the advantages of reasonable structure, simple construction and lower cost of construction, can effectively improve shock absorption and disaster prevention capacity of brickworking houses, obviously improves the isolated capacity of the brickworking houses based on the non-change traditional construction method and particularly is applied by being matched with brickworking buildings.

The invention belongs to the field of vibration control of building structures, and particularly relates to an olive-shaped quadruple energy-consuming type damper. The damper comprises a right end plate, a right end plate, a threaded hole A, a threaded hole B, an external arc-shaped energy-consuming steel plate, an olive-shaped energy-consuming steel plate, an elliptical hole, a coordinate connection reinforced steel, an energy-consuming rib, an internal arc-shaped energy-consuming steel plate, an olive-shaped foamed aluminum energy absorption plate, an elastic caking filling material, a locking nut, a connection shaft, a friction energy-consuming block, a foamed aluminum energy-consuming material, a round soft steel energy-consuming inner cylinder and a spring energy-consuming body; the damper is enclosed by the right end plate, the left end plate, the external arc-shaped energy-consuming steel plate and the olive-shaped energy-consuming steel plate, and the interior of the olive-shaped energy-consuming steel plate is provided with the elliptical hole; and the olive-shaped foamed aluminum energy absorption plate is arranged to be closely next to the olive-shaped energy-consuming steel plate. The olive-shaped quadruple energy-consuming type damper has the beneficial effects that the initial stiffness is large, the material yield dispersion area is large, and the damper is designed by adopting the quadruple energy-consuming structure, cab increase the integral stiffness of the building structure when being used normally, and can decrease the earthquake reaction of the building structure when an earthquake happens.

The invention provides a multi-cavity L-shaped anti-seismic and anti-corrosion shear wall, which belongs to the technical field of construction. The wall of the multi-cavity L-shaped anti-corrosion anti-seismic shear wall is L-shaped, and the wall is composed of aerated concrete, foamed aluminum energy-dissipating materials, fire insulation layer, and anti-corrosion protection layer from the inner layer to the outer layer; the aerated concrete is located in multiple The innermost part of the cavity-type L-shaped anti-corrosion anti-seismic shear wall is equipped with cold-rolled energy-dissipating steel plates at both ends inside the aerated concrete, and reinforcing ribs are installed on the opposite side of the cold-rolled energy-dissipating steel plates at both ends, and cold-rolled energy-dissipating steel plates at both ends The supporting keel column is arranged at the right angle of the wall body through the connection of tie bars, and the cross supporting rib is arranged in the cavity where the supporting keel column is located. The advantages and beneficial effects of the present invention are that it can make the wall have good force bearing capacity, excellent energy consumption and shock absorption capacity, can realize the absorption of vibration energy, and can effectively reduce the weight of the wall body, absorb less seismic force during an earthquake, and can reduce Earthquake response of building structures.

The invention discloses a three-directional shock isolation device based on active mass balance and gyroscope balance. The three-directional shock isolation device comprises a bottom box, a ball articulation piece, vertical spring damping guide rods, horizontal spring damping guide rods, a top box, a horizontal orthogonal gyroscope and an orthogonal active mass balance system, wherein the horizontal spring damping guide rods are uniformly arranged between a side plate of the top box and a side plate of the bottom box; the vertical spring damping guide rods are uniformly arranged between a bottom plate of the top box and the bottom plate of the bottom box; the horizontal orthogonal gyroscope is formed by orthogonally distributing two gyroscopes; the orthogonal active mass balance system is arranged at the lower end of the top box and comprises a guide rail bottom plate, a guide rail vertical plate, a rod-shaped guide rail, a trolley internally provided with an electric motor and a horizontal sensor. According to the three-directional shock isolation device, a stable plane is formed firstly by utilizing the axial stability of the horizontal orthogonal gyroscope; then, with adoption of the orthogonal active mass balance system, under the actions of various excitations and eccentric loads, even if a support of support equipment inclines, the top surface of a top plate can still keep horizontal.