52results about How to "Play a role in energy consumption" patented technology

The invention discloses a concrete filled steel tube row column shear wall with a structural steel support and a manufacturing method thereof. The shear wall comprises prefabricated concrete filled steel tubular columns arranged at certain intervals, structural steel supporting components, sleeve connecting components for connecting structural steel and concrete filled steel tubes, concrete poured into a wall space in a filling mode, and steel bar nets which are used for preventing early cracking of the concrete and arranged on two sides of a wall body in advance. The shear wall gives full play to the good axial compressive performance of the concrete filled steel tubular columns. The rigidity of the wall body is increased due to addition of the structural steel supporting components. A rubber pad layer is arranged in each sleeve connecting component, so that partial damage at the joints of the concrete filled steel tubular columns and the supporting components is reduced to a certain extent. Bulging of steel tubes is restrained due to the hooping function of sleeves to the concrete filled steel tubes, and the three layers of defenses including the concrete, the structural steel support and the concrete filled steel tubes are formed. The combined shear wall has high bearing capacity and a good anti-seismic property, most of the components are prefabricated components and are convenient to splice after being conveyed to a construction site, and work time is saved.

The invention provides a shock-absorbing device of a shockproof joint, and the shock-absorbing device comprises a left shock-absorbing unit and a right shock-absorbing unit which are symmetrically arranged on concrete structures at two sides of the shockproof joint, wherein the left shock-absorbing unit and the right shock-absorbing unit comprise steel barrels with inner sides which are embedded into the concrete structures; each steel barrel is internally provided with a piston with a piston rod, and a spherical steel cover plate is arranged at the outer end of each piston rod; a spring is arranged between each spherical steel cover plate and each concrete structure; the outer edge of each steel barrel is level with each concrete structure and is fixedly arranged through arranging an annular steel barrel cover plate; a spring is arranged between each spherical steel cover plate and each annular steel barrel cover plate; and the outer end of each piston rod is at least provided with two layers of spherical steel cover plates. According to the invention, the collision effect on buildings under an earthquake action is reduced, the buildings are prevented from being damaged, the construction is simple and the construction cost is low.

The invention relates to the field of building structure seismic resistance and energy-dissipation seismic-mitigation control, in particular to an energy-dissipation and seismic-mitigation oblique prestress shear wall structural system suitable for prefabrication and assembly construction. The structural system includes a prefabricated shear wall, a prestressed inhaul cable, a prefabricated frame column, turning angle constraint connection pieces and an energy-dissipation component; corrugated hoses are embedded in the prefabricated shear wall and internally provided with the prestressed inhaul cable, the four corners of the prefabricated shear wall are provided with the turning angle constraint connection pieces, and the turning angle constraint connection pieces are connected with the energy-dissipation component. The structural system has the advantages that the overall deformation of an upper wall body and the overall deformation of a lower wall body are consistent, a whole control structure is laterally displaced, at the same time, the shear wall structure has a certain self-resetting ability, the overall deformation helps energy-dissipation steel plates give full play to energy dissipations characteristics, a single weak link does not appear, the assembly efficiency of the overall structure is improved, site construction is convenient to achieve, the construction period is effectively shortened, and the cost is saved.

The invention provides a cloud computing server resource on-line management method and system with an energy consumption sensing function, and belongs to the field of computer high-performance computing. In the method and system, cloud computing server resources and energy consumption are managed mainly through collaborative operation of load balance control and energy consumption control, wherein according to load balance control, the quantity of resources distributed to different virtual machines is adaptively adjusted to maintain the load balance among the virtual machines so that all the virtual machines can obtain approximately consistent response time; according to energy consumption control, the frequency of a physical CPU is dynamically changed to keep the average response time of all the virtual machines tending to an ideal level so as to achieve the purpose of lowering energy consumption. By means of the method and system, the power consumption of a physical server can be effectively reduced while the performance of Web applications on the virtual machines is guaranteed, and thus the effect of on-line control over the energy consumption and performance of the cloud computing server is achieved.

The invention relates to a cement-based composite material for pavement of a steel box girder bridge deck, as well as a preparation method and a pavement method thereof. The invention aims at providing a lightweight and high-toughness cement-based composite material which is suitable for pavement of larger-span steel box girder bridge decks, and the cement-based composite material comprises the following components in parts by weight: 849-881 parts of cement, 339-425 parts of quartz sand, 215-273 parts of pottery sand, 100-226 parts of fly ash, 30-56 parts of silica fume, 275-295 parts of water, 10-13 parts of water reducing agent, 40-80 parts of steel fiber, 6.5-13 parts of organic fiber and 20-30 parts of epoxy resin. Through material optimization, the durability of a bridge deck paving layer is improved, the overall dead weight is reduced, the cost of a project is simultaneously saved, and the cement-based composite material is suitable for pavement of the larger-span steel box girder bridge decks.

The invention provides a corrosion-resistance coating of a polysilicon ingot furnace, a high temperature resistance protective layer and a preparation method thereof. The corrosion-resistance coating comprises the following components with the weight percentage: 85%-93% of mixture of carbon fibre powder and graphite powder, 1%-4% of film forming agent, 1%-3% of mixture of firming agent and dispersing agent, and 5%-12% of insulating material powder; the insulating material powder is one or two compounds of Sr3Ti2O7 and Sr4Ti3O7. The high temperature resistance protective layer comprises a carbon fibre thermal-protective coating and the corrosion-resistance coating covered on thereof. The corrosion-resistance coating of the invention causes the surface of the carbon fibre thermal-protective coating to be smooth, blocks the aggregation of impurities, has high temperature resistance and high strength, protects the carbon fibre thermal-protective coating not to be rusted, thus prolonging the service life of the carbon fibre thermal-protective coating.

The invention provides a green and energy-saving anti-dazzle system for a highway tunnel portal. The green and energy-saving anti-dazzle system comprises a structural canopy and a controller which are arranged outside the highway tunnel portal, wherein vehicles enter and leave a tunnel through the structural canopy; an anti-dazzle unit connected with the controller and used for adjusting the transmittance amount automatically according to ambient light brightness is arranged at the top of the structural canopy. According to the green and energy-saving anti-dazzle system for the highway tunnel portal, the transmittance amount of the tunnel portal can be adjusted automatically according to the ambient light brightness, the problem about inside and outside light transition when the vehicles travel in and out of the tunnel portal is solved, the visual impact of drastic brightness change on drivers is reduced, not only can the strengthened lighting brightness level of the tunnel portal section be reduced, but also the solar energy can be converted into electric energy to supply power to the system, meanwhile, power is also supplied to night lighting lamps of the tunnel portal, energy consumption of the tunnel engineering during operation is reduced greatly, and the functions of energy saving and emission reduction are realized.

The invention relates to a steel structured building antiseismic deformation-resistant double protection method and structure, using the character of the steel structured girder section shape, arranging adjustable slide cushion between pillar foundation and groundsill and arranging shearing bolt at the junction of the pillar foot and the pillar foundation and arrange boot device in the pillar foundation suitable for the pillar foot to slide, adopting girder node connection between steel frame beam and steel frame pillar, and arranging filling wall between steel frame girder and steel frame pillar, where the filling wall and the steel frame pillar are interlinked into a whole through the vertical and horizontal steel piece-composed fastening grooves, improving the whole performance of the structure and meeting the antiseismic and deformation resistance requirements. And it is beneficial to reduce environmental pollution and able to effectively reduce steel utilization , applied to the steel structured buildings in the antiseismic fortified region and ground surface deformation region, able to effectively reduce the damage of earthquake and ground surface deformation to the steel structured buildings and improve the whole safety and reliability of the steel structure.

The invention discloses a method for using a modular steel hysteresis damper, which relates to the method for using the steel hysteresis damper and solves the problem that power consumption function of the damper is not showed completely due to the arrangement mode of the current shock absorption and power consumption damper. Mounting position of the modular steel hysteresis damper is determined; dampers are arranged on all the floors layer by layer up from the half height of a shear wall, and the planes on all the layers are ensured to be arranged symmetrically; an integral structure power model is built by using elastic-plastic analysis software, and specific quantity and type numbers of the modular steel hysteresis dampers arranged on each connecting beam are determined; yield shear force of the modular steel hysteresis damper arranged on a cutoff position of each connecting beam is between shear force in small seism and middle seism of the connecting beam; and, after the selected connecting beam is cut off from the middle part, space scale of the mounted modular steel hysteresis damper is matched with that of an cutoff opening of the connecting beam, thereby ensuring that the geometrical shape of the connecting beam is unchanged. The power consumption function of the damper is maximally showed due to the arrangement mode of the damper provided by the invention, so that the modular steel hysteresis damper is absolutely suitable for use in seismic design.

The invention discloses a high-speed rail pedestrian overbridge vibration reduction suspended ceiling device and a processing method thereof. The device comprises a suspended ceiling, a plurality of brackets, a plurality of springs and a plurality of dampers, wherein each bracket is connected to the inner side face of an overbridge floor board and the inner side face of an overbridge structure secondary beam respectively, the upper end of each spring and the upper end of each damper are connected to each bracket respectively, and the lower end of each spring and the lower end of each damper are connected to the suspended ceiling. The high-speed rail pedestrian overbridge vibration reduction suspended ceiling device and the processing method thereof can resolve the problem of high-speed rail pedestrian overbridge vibration caused by train wind, have the obvious vibration reduction effect, are not restrained by the span of a high-speed rail pedestrian overbridge, and achieve flexible arrangement.

The invention relates to a vertical seismic isolation device and a seismic isolation and installation method thereof. The device comprises a bottom basin, a pier column, a first elastic supporting mechanism and a second elastic supporting mechanism. A hollow inner cavity is formed in the bottom basin, the pier column is arranged in the center of the bottom basin, one part of the pier column is arranged in the hollow inner cavity of the bottom basin, the other part of the pier column upwards extends out of the bottom basin, the first elastic supporting mechanism is vertically arranged between the pier column and the bottom of the bottom basin and used for supporting the pier column and absorbing vertical kinetic energy of the pier column, and the second elastic supporting mechanism is arranged between the outer wall of the pier column and the inner wall of the bottom basin in the horizontal direction and used for providing symmetrical interface friction bearing capacity for the outer wall of the pier column. The vertical seismic isolation device can effectively control the upper limit value of the vertical seismic action, and is simple in structure, clear in force transmission, lowin manufacturing cost, prefabricated in a factory, convenient to assemble on site and suitable for building structures in areas with large vertical seismic action.

The invention provides a sliding plate supporting seat. The sliding plate supporting seat comprises an upper connecting plate, an outer ring plate, a rubber supporting seat, a high polymer material plate, a stainless steel mirror plate and a lower connecting plate. A vertical bearing system is composed of the upper connecting plate, the rubber supporting seat, the high polymer material plate, thestainless steel mirror plate and the lower connecting plate. In the vertical force transmission process, the rubber supporting seat does not bear the function of a horizontal load; compared with an ordinary elastic sliding plate supporting seat, the rubber supporting seat cannot be cut off under the earthquake action due to the too large friction coefficient of a lower sliding plate; and a horizontal bearing system is composed of the upper connecting plate, the outer ring plate, a lower sealing plate of the rubber supporting seat, the high polymer material plate, the stainless steel mirror plate and the lower connecting plate, and horizontal force is transmitted step by step through the components during an earthquake, so that when the horizontal force reaches the high polymer material plate, relative sliding between the high polymer material plate and the stainless steel mirror plate happens, and the earthquake effect on an upper structure is reduced through friction energy consumption.

The invention relates to a column base joint with an additional bending type damper capable of being replaced after an earthquake, and belongs to the technical field of structural engineering earthquake resistance. The column base joint with the additional bending type damper capable of being replaced after the earthquake comprises an upper column, a lower column, a bowl-shaped support positioned in the axial center of the upper column and the lower column, and the bending type damper arranged around the bowl-shaped support; the end surfaces of the upper and lower bowl-shaped supports are respectively provided with an arc-shaped bulge and an arc-shaped groove, and an arc-shaped rubber pad and a steel wire mesh are additionally arranged between the arc-shaped bulge and the arc-shaped groove; the bending type damper has various structural types, bending plates are connected between middle steel pipe sections and side steel pipe sections, the middle steel pipe sections or the side steel pipe sections are divided into an upper steel pipe section and a lower steel pipe section, and connecting steel pipe sections are movably connected between the upper middle steel pipe section and the lower middle steel pipe section or between the upper side steel pipe section and the lower side steel pipe section in an inserted mode to prevent deviation. A steel stop block is arranged on the connecting steel pipe section for limiting. According to the column base joint with the additional bending type damper capable of being replaced after the earthquake, force transmission paths are distributed clearly, the bowl-shaped supports bear axial force and shearing force, rotation in all directions is achieved, the bending type dampers can dissipate earthquake energy, anti-seismic capacity is improved, and replacement and maintenance after the earthquake are convenient.

The invention discloses epoxy resin daub for building joint filling. The epoxy resin daub for building joint filling comprises a component A and a component B. The component A is prepared from the main raw materials in parts by weight: 45-55 parts of bisphenol A 128 epoxy resin, 15-20 parts of modified epoxy resin, 10-15 parts of terminal carboxyl nitrile rubber, 10-15 parts of polyimide resin, 8-11 parts of a modified carbon nanotube, 12-16 parts of filler and 1-2 parts of a coupler. The component B contains a low-temperature curing agent, a polyamide curing agent, a phenolic amine curing agent and dibutyl phthalate. The mass ratio of the component A to the component B is 10: (2-3). The invention also discloses a preparation method of the epoxy resin daub. By adding the modified epoxy resin, terminal carboxyl nitrile rubber and polyimide resin and matching with the modified carbon nanotube in use, the obtained daub is high in mechanical property, high in toughness, excellent in comprehensive performance, simple in preparation process and easy to produce.

The invention discloses a self-return energy-dissipating joint for beams and a column. The self-return energy-dissipating joint comprises the steel column, the middle beam, the short beam, connectingplates, a friction plate, a limiting device, a hinged support base and a high-strength anchor rod, wherein the steel column is vertically arranged, and the middle beam is transversely arranged; one end of the short beam is fixedly connected to the steel column, and a gap is formed between the other end of the short beam and the middle beam; the two connecting plates are separately positioned at the two sides of a web of the short beam and a web of the middle beam; the friction plate is cushioned between the web of the short beam and the connecting plates; the limiting device is a barrel body or a rack body which is fixed to the bottom surface of the lower wing edge of the middle beam, and is provided with through holes in two sides; the hinged support base is fixed on the steel column; oneend of the high-strength anchor rod is hinged with the hinged support base, and the other end of the high-strength anchor rod passes through the through holes of the limiting device; and a disc-shaped spring group sleeves the high-strength anchor rod, and the two ends of the high-strength anchor rod are symmetrically provided with the limiting steel plate and the high-strength nut in a sleeved mode. Pre-pressing force is applied to the disc-shaped spring group, so that the beam and the column have self-return ability; during a strong earthquake, the short beam is hinged with the middle beam to rotate and rub to dissipate energy; and the disc-shaped spring group under the beam column joint realizes self-return.

The invention discloses an energy consumption shed tunnel for protection of a mountain-side highway in a mountain area. The top surface of the shed channel is a slope inclined to the outer side of themountain-side highway, a plurality of stone-discharging roads inclined to the outer side of the mountain-side highway is arranged on the top surface of the shed channel, and the stone-discharging roads are distributed along the trend of the shed channel; a plurality of stone-discharging rollers are arranged in the single stone-discharging road, and the stone-discharging rollers can rotate axiallyaround the stone-discharging rollers; and steel bar nets are arranged between the stone-discharging roads and a mountain body, and cover the gap between the innermost stone-discharging roller and themountain body. The energy consumption shed tunnel has the beneficial effects that the energy consumption shed tunnel for protection of the mountain-side highway in the mountain area is provided, theprotective effect is achieved, accumulation of stones can be effectively prevented, and the maintenance cost is low.

The invention provides a seismic absorption and isolation support with a variable friction coefficient to balance the contradiction between the daily function and the energy consumption capacity due to the friction coefficient of the seismic absorption and isolation support. When the speed is lower than or equal to 15 mm / s, the friction coefficient of the support is smaller than or equal to 0.02; when the speed is higher than or equal to 100 mm / s, the friction coefficient of the support is larger than or equal to 0.05.

The invention discloses a main structure of a green environment-friendly prefabricated building. There are several cavities, and at least one air exchange port is opened on the foundation wall corresponding to one cavity, and the cavity communicates with the outside through the air exchange port. A floor beam, the edge beam is installed on the top of the foundation wall, and a U-shaped heat insulation block is installed at the bottom of the floor beam. The two side plates of the U-shaped heat insulation block are located on both sides of the floor beam, adjacent to the floor beam A second thermal insulation board is installed between them, and the two ends of the second thermal insulation board are lapped on the side panels on both sides respectively, and floor plywood is paved on the floor beams and side beams. The invention not only has a good thermal insulation effect, but also can effectively reduce the energy loss of the prefabricated building.

The invention provides a quick construction structure for a whole bridge and a construction method thereof. The quick construction structure for the whole bridge comprises a prefabricated bridge abutment, a prefabricated bridge main beam and a prefabricated lapping board; the prefabricated bridge main beam is erected on the upper portion of the prefabricated bridge abutment; the side, facing a sleeper beam, of the upper portion of the prefabricated bridge abutment is provided with a convex bearing portion, and the bearing portion of the prefabricated bridge abutment is provided with connectingsteel bars laterally extending; the side of the prefabricated bridge main beam is provided with inserting holes used for allowing the steel bars to be inserted; one end of the prefabricated lapping board is arranged on the upper surface of the bearing portion, and the other end of the prefabricated lapping board is fixed to the upper surface of the sleeper beam; and a pile foundation is fixed tothe bottom of the prefabricated bridge abutment. According to the quick construction structure for the whole bridge and the construction method thereof, the structure is simple, the bridge abutment and the main beam of the whole bridge are connected into a whole, the integrality of the structure is enhanced, a large quantity of prefabricated elements are adopted and transported to a construction site to be quickly assembled, influences of bridge construction on existing traffic are reduced to the maximum limit, and the cost is reduced.

The invention discloses a stepped viscous-friction damper. The stepped viscous-friction damper comprises a top plate and a bottom plate, wherein a first end plate and a second end plate are vertically arranged between the top plate and the bottom plate at intervals; one end of a first friction assembly is fixedly connected with the first end plate, and the other end of the first friction assembly is embedded with one end of a second friction assembly in a crossed mode and fixedly connected with the second friction assembly through a fastener; the other end of the second friction assembly is fixedly connected with the second end plate; and a viscous assembly is arranged between the first friction assembly and the second friction assembly, one end of the viscous assembly penetrates through the first end plate, and the other end of the viscous assembly penetrates through the second end plate. According to the stepped viscous-friction damper, under a small load, the viscous assembly plays an energy dissipation role, can be reused and plays a role in the whole life cycle of the structure; under a large load, the friction assemblies and the viscous assembly jointly dissipate energy, and the energy dissipation effect of the damper is effectively improved; and under different magnitudes of seismic energy, energy consumption is achieved step by step, the purposes of shock absorption, buffering and energy dissipation are achieved, and the safety of the structure is ensured.

The invention relates to a column base joint with an additional grid type damper capable of being replaced after an earthquake, and belongs to the technical field of structural engineering earthquake resistance. The column base joint with the additional grid type damper capable of being replaced after the earthquake comprises an upper column, a lower column, a bowl-shaped support positioned in an axial center of the upper column and the lower column and the grid type damper arranged around the bowl-shaped support. The end faces of an upper bowl-shaped support and a lower bowl-shaped support are provided with arc-shaped protrusions and arc-shaped grooves respectively, and a plurality of wave springs are additionally arranged between the arc-shaped protrusions and the arc-shaped grooves, or the peripheries of the bowl-shaped supports are sleeved with a plurality of disc springs. The grid type damper is a steel structural part and comprises frames and grids interwoven in the frames, and an upper frame and a lower frame are detachably connected with steel end plates of the upper column and the lower column respectively. According to the column base joint with the additional grid type damper capable of being replaced after the earthquake, force transmission is clear, the bowl-shaped support can bear axial force and shearing force, and rotation in all directions can be achieved during the earthquake. The grid type damper can dissipate earthquake energy, improves anti-seismic capacity, and is convenient to replace and maintain after the earthquake.

The invention discloses a self-resetting energy dissipation device. The self-resetting energy dissipation device comprises an upper box type steel plate component, a middle box type steel plate component, a lower box type steel plate component, end box type steel plate components, disc spring elastic resetting assemblies, pull rods and steel plate energy dissipation components; the end box type steel plate components are arranged at two ends above the lower box type steel plate component respectively, the top of each end box type steel plate component is open, multiple partition boards are arranged on the inner wall of each end box type steel plate component, and grooves penetrating through the partition boards are formed in the middles of the partition boards; each steel plate energy dissipation component is located between the middle box type steel plate component and the corresponding end box type steel plate component; each disc spring elastic resetting assembly comprises disc springs, rigid base plates and nuts, the rigid base plates are arranged at two ends of the disc springs, outer sides of the rigid base plates are fastened by the nuts, and the rigid base plates at the twoends of the disc springs are connected between the two adjacent partition boards in a propped manner. The energy dissipation device is convenient to construct, simple in structure and high in stability and has energy-dissipation and self-setting functions.

The invention relates to a composite asphalt pavement material for removing snow and a paving method for a composite asphalt pavement. The pavement material comprises a component A and a component B. The component A is made of, by weight, 40% of coarse aggregate, 26% of fine aggregate, 8% of base asphalt, 7% of additive, 8% of graphite, 4% of junked tire powder, 4% of brass mineral powder, 0.5% of stabilizer, 0.5% of antioxidant and 2% of assistant. The content of graphite in the component B is twice that of the graphite in the component A. The pavement of an A-B-A structure is adopted, the strength of a traditional asphalt pavement paved by the same material is improved, and the snow removing efficiency is improved; the recycled waste plastic can be used, and good economic benefits and the environment-friendly function are achieved; the pavement has the advantages of being good in stability and aging resistance, good in low-temperature cracking preventing performance, adaptive to cold temperature difference areas, and long in service life; the pavement can be easily processed and formed according to construction conditions, and field road construction operation is sample; the pavement is free of pollution, resistant to corrosion and environmentally friendly.

The invention relates to a variable-friction large-span long-connection continuous beam system. The system comprises a beam body, a pier body which is supported below the beam body, a foundation, and a variable-friction support which is arranged between the beam body and the pier body. According to the variable-friction large-span long-connection continuous beam system, under the normal operation load effect, the relative sliding face of the beam body and the pier body is a plane, when the beam body stretches out and draws back, the elevation of a bridge floor is not changed, the driving safety of a high-speed railway is not affected, the friction coefficient of the sliding face is low, and the size of the pier body of the lower structure can be reduced; under the action of a rare earthquake, the relative sliding surface of the beam body and the pier body is a spherical surface, so that the natural vibration period of a bridge structure can be prolonged, the earthquake response can be reduced, the anti-seismic property of the large-span long-connection continuous beam system can be improved, and meanwhile, the spherical sliding surface has a relatively high friction coefficient and plays a role in energy consumption.

A wood sliding shock-insulation support comprises an upper connecting plate and a lower connecting plate. The upper connecting plate is provided with upper bolts used for being connected with an upper structure. The lower connecting plate is provided with lower bolts used for being connected with a lower structure. A plurality of holes are symmetrically formed in the upper connecting plate and the lower connecting plate, and wood rods are inserted in the holes and located between the upper connecting plate and the lower connecting plate. The wood sliding shock-insulation support has the advantages of being high in vertical bearing capacity and small in horizontal rigidity, is capable of guaranteeing the sliding shock-insulation effect of the upper structure of the support under the action of an earthquake, and has the characteristics of being environmentally friendly in use material, low in manufacturing cost and simple in structure. The wood material is high in toughness, light in self structure, high in elasticity recovery performance and capable of being reset automatically when the action of an earthquake is small.

The present invention relates to a concurrent refining process for silicon carbide and graphite. The process comprises a step of reaction raw material adding, wherein the reaction raw materials comprise the raw material required for refining the graphite and the reaction raw material required for refining the silicon carbide, and the reaction raw material required for refining the silicon carbide is distributed around the raw material required for refining the graphite. The present invention provides a refining process with characteristics of low energy consumption, high energy utilization rate, simple process, convenient operation, and concurrent productions of the silicon carbide and the high purity graphite in a slightly modified silicon carbide calciner.

The invention discloses a hydrological monitoring buoy protection device. The device comprises a first protection frame, a second protection frame and an arc-shaped support, and the arc-shaped support is movably connected with the lower portion of the first protection frame and fixedly connected with the upper portion of the second protection frame; transverse supports are evenly distributed on the outer wall of the first protection frame and sleeved with first rollers, vertical supports are evenly distributed on the outer wall of the second protection frame and sleeved with second rollers, and mounting holes are formed in the inner wall of the first protection frame and the inner wall of the second protection frame. A buffer layer is arranged in the second protection frame. The structure and materials of the protection device are improved, and the anti-impact protection effect is excellent.

The invention discloses low-ash donkey plasma protein powder. The low-ash donkey plasma protein powder is offwhite, powdered and odor-free; the ash content is less than or equal to 5 percent; the coarse protein content is larger than or equal to 83 percent; the immune globulin content is larger than or equal to 22 percent; the dissolving degree is larger than or equal to 96 percent; total volatile base nitrogen is smaller than 260mg / kg; the salt content is less than or equal to 3.5, the coarse ash content is less than or equal to 11.0, the water content is less than or equal to 9.0, the lysine content is larger than or equal to 3.5 percent, the coarse fiber content is less than or equal to 3.0, and the total phosphorus amount is 0.15-0.5; viruses cannot be detected. On the premise of killing the viruses and germs, the protein powder keeps the nutritional components in donkey blood to the maximum extent and is novel high-quality plasma protein powder. The invention also discloses a preparation method for the low-ash donkey plasma protein powder. According to the preparation method, all steps from raw material selection to finished product forming are implemented in a sterilized closed pipeline, so that pollution in a working process is avoided.

The invention discloses a debris flow area bridge pier with a floating anti-collision device. The debris flow area bridge pier is composed of a pier body, a buffer sleeve, a buoyancy box ring, a connecting frame and a plurality of anti-collision barrels. The debris flow area bridge pier with the floating anti-collision device has the beneficial technical effects that according to the scheme, the impact effect of debris flow on a bridge can be effectively reduced, and the anti-collision performance of the debris flow area bridge is improved.

The invention discloses a hidden type wooden beam column joint reinforcing device and a reinforcing method thereof in the technical field of wooden building repair, the reinforcing device comprises an FRP rib, magneto-rheological plastomer springs are arranged at the two ends of the FRP rib, a layer of hexagonal iron sheet is arranged on the outer side of each magneto-rheological plastomer spring for wrapping, and the hexagonal iron sheet is filled with magneto-rheological fluid; the high-strength bolts penetrate through the hexagonal iron sheet to be fixedly connected with the small logs and the FRP ribs to be fixedly connected with the hexagonal iron sheet, the thin memory alloy diaphragms are attached to the two sides of the hexagonal iron sheet respectively, the small quadrilateral iron containers are attached to the outer layers of the thin memory alloy diaphragms, and the small quadrilateral iron containers are filled with magnetorheological fluid. The quadrilateral iron small container is connected with a sleeve on the outer side, and then the sleeve is connected with a beam column. According to the reinforcing device, the flexural capacity and rigidity of the beam-column joint are improved, meanwhile, earthquake or wind vibration energy can be dissipated through the damping energy dissipation effect, and the original semi-rigid characteristic of the mortise and tenon joint is kept.