353results about How to "Improve energy consumption" patented technology

The invention discloses a multi-underwater-robot cooperative control system and method based on predictive control, and relates to the technical field of cooperative control. During operation of the system, underwater environment data are collected through sensor equipment, an underwater three-dimensional dynamic environment model is generated by using a data fusion technology, and the underwater three-dimensional dynamic environment model is established based on task requirements; tasks are decomposed and distributed to all the robots, through an optimization algorithm, optimal paths of the robots and the mechanical arms are planned, the motion trails of the underwater robot mechanical arms are dynamically optimized based on model predictive control MPC, a real-time control strategy is provided for task division among the multiple mechanical arms, and the real-time control strategy of the underwater robot mechanical arms is provided based on environment modeling and the real-time state. Future motion states of the robot and the mechanical arm of the robot are predicted, an optimization objective function including task completion time, energy consumption and mechanical arm operation precision is constructed, a rolling optimization method is utilized, a control instruction is updated in real time, and real-time data sharing among multiple underwater robots is supported based on an acoustic communication technology.

The invention discloses an AI-based intelligent energy management method and system for air conditioning equipment. The method comprises the following steps that indoor environment data are collected in real time through a sensor on the air conditioning equipment; cleaning, de-noising and normalizing the acquired environment data; collecting air conditioner setting preference data of the user; based on the collected data, reasoning and result output are conducted on operation of the air conditioner through an AI model in the edge computing device; according to the result output, an air conditioner control strategy adapting to the current environment and user requirements is generated; dynamically adjusting the operation mode of the air conditioner based on the real-time load and the power grid condition; the air conditioner control strategy is adjusted according to feedback data in the air conditioner operation process; according to the AI-based intelligent energy management method and system for the air conditioning equipment, a comfortable environment can be provided, efficient energy management can be achieved, the overall energy consumption is reduced, and the pressure on a power grid is reduced.

The utility model discloses an FRP (fiber reinforced plastic) bar-steel bar mixed reinforced concrete column with high corrosion resistance and shock resistance toughness, which comprises a concrete layer, an FRP bar framework and a steel bar framework, the FRP bar framework is positioned on one side close to the surface of the concrete layer, the steel bar framework is positioned on the inner side of the FRP bar framework, and the steel bar framework is formed by a plurality of steel longitudinal bars and a plurality of steel stirrups. The FRP bar framework is formed by a plurality of FRP longitudinal bars and a plurality of FRP stirrup belts. According to the concrete column, the corrosion-resistant FRP longitudinal bars and the FRP stirrup belts are arranged on the outer side, the steel bars prone to corrosion are arranged on the inner side, linear elasticity and corrosion resistance of FRP materials and the excellent energy dissipation capacity of the steel bars are fully utilized, and the concrete column with the FRP bars and the steel bars in mixed reinforcement and good in corrosion resistance and seismic toughness is formed; and moreover, the used FRP ribs can provide stable secondary rigidity after the steel bars are yielded, so that residual deformation of the column after unloading is reduced, and rapid repair of the concrete column after an earthquake is facilitated.

The invention belongs to the technical field of vibration control of engineering structures, and particularly relates to a self-adaptive damping anti-collision device for the transverse direction of a long-span bridge, which comprises the long-span bridge and the self-adaptive damping anti-collision device, bridge towers, a cross beam and a bridge deck form a main frame of the long-span bridge, the cross beam is mounted between the pair of bridge towers, and the bridge deck is mounted on the cross beam. A bridge deck slab is arranged above the cross beam, the self-adaptive damping anti-collision device is installed between the bridge deck slab and the cross beam, an upper bracket is installed at the bottom of the bridge deck slab, a lower bracket is installed at the top of the cross beam, and the top of the self-adaptive damping anti-collision device is hinged to the bridge deck slab through the upper bracket. The bottom of the self-adaptive damping anti-collision device is hinged to the cross beam through a lower bracket. The self-adaptive damping anti-collision device is additionally arranged between the bridge deck and the cross beam of the large-span bridge, so that the energy consumption of the damper is improved, the bottom shearing force of the structure is reduced, meanwhile, the development of large displacement is limited, the bridge deck is prevented from colliding with the bridge tower, the multi-performance level requirements of the large-span bridge are met, and the safety and reliability of the bridge are guaranteed.

The invention relates to the field of electromagnetic vibration damping devices for changing fluid viscosity and adjusting damping properties, in particular to a bidirectional adjustable magneto-rheological inerter damper. The bidirectional adjustable magneto-rheological inerter damper comprises a first terminal (11), a second terminal (12), a first end plate (21) and a second end plate (22), and is characterized by further comprising a screw (3), screw balls (41), channel balls (42), an input ring (51), an output ring (52), a continuously variable transmission (6) and a controllable damping system (7), and the continuously variable transmission (6) comprises a stator (61), an idle wheel (62), a shell (65), traction fluid (66) and the like. And the controllable damping system (7) comprises a fixed pipe (71), a fixed pipe rotor (72), a rotor bearing (73), a flywheel (76), an electromagnetic coil group (77), a controller (78) and a direct-current power supply (79). Space is saved, and the vibration control performance is good.

The invention discloses a'seam-hole-weir 'combined fishway with four fish passing channels, and belongs to the field of fishway design. Four vertical seams, two inclined transverse baffles with bottom holes, two inclined rectangular weirs with bottom holes and two rectangular energy dissipation piers are arranged in each pool chamber, so that four fish passing channels are provided for migration and upstream of fishes, a more sufficient migration and upstream space is provided for the fishes, and the survival rate of the fishes is increased. And the flow velocity and turbulent fluctuation of the main flow area in the pool chamber are reduced by sharing the flow, and the flow velocity and turbulent fluctuation of the main flow area can be further reduced by promoting transverse / longitudinal diffusion and energy consumption of water flow. And the upstream success rate of the whole fish community (including fishes with strong swimming ability and fishes with weak swimming ability) can be improved. The'seam-hole-weir 'combined fishway with the four fish passing channels, provided by the invention, is beneficial to reducing the adverse effects of water conservancy projects on the ecological environment of a river, biological diversity and fishery resources.

The invention discloses a power transmission line anti-galloping phase-to-phase spacing device, which belongs to the technical field of power transmission lines, and is characterized in that two connecting plates, two connectors, two cross universal joints and two rod type composite insulators are arranged between two adjacent six-split damping spacers; each connecting plate is connected with a cross universal joint through a connector, and the cross universal joints are further connected with the ends of the rod type composite insulators. A hydraulic shock absorber is arranged in the middle of the two rod type composite insulators; a damping ball is arranged in the center of a triangle formed by the rod type composite insulators; an outer viscous damper, a first connecting rod and a second connecting rod are arranged between the hydraulic shock absorber and the damping ball; the first connecting rod and the second connecting rod are connected to the two sides of the outer viscous damper respectively, the damping ball is connected with the first connecting rod, and the hydraulic shock absorber is connected with the second connecting rod through the connecting ferrule. The problems that in the prior art, under the long-time line use condition, wires are damaged, the safety of a power transmission line is affected, and cost is high are solved.

The invention discloses a self-resetting steel reinforced concrete frame with a swing wall and an assembly method thereof. Compared with a traditional reinforced concrete structure, the steel-reinforced concrete structure has the advantages of being large in bearing capacity, large in rigidity, good in anti-seismic performance and the like. The system comprises three parts, namely steel-reinforced concrete frames on the left side and the right side and a swing wall YBQ in the middle, wherein the steel-reinforced concrete frames on the left side and the right side comprise two steel-reinforced concrete columns and two steel-reinforced concrete beams; the steel-reinforced concrete column is connected with the steel-reinforced concrete beam through the beam-column joint LJD; the swing wall YBQ is connected with the frames on the two sides through the four flexible supports ZC. A column base joint ZJD is arranged at the bottom of the steel-reinforced concrete column and connected with a foundation through a foundation bolt. Under a horizontal earthquake, the swing column, the energy dissipation beam column joint and the swing wall act together, the anti-seismic capacity and the self-resetting capacity of the structure can be greatly improved, and meanwhile the energy dissipation joint is easy to install and can also be replaced after being damaged.

The utility model discloses a green curtain wall for subway ground buildings in hot areas, which comprises a plane material component, a support component, a connecting component and a sealing material component, the plane material component is formed by splicing a plurality of groups of photovoltaic glass, the support component is respectively composed of an aluminum alloy cross beam and an aluminum alloy upright post, and the connecting component is connected with the aluminum alloy upright post. The top and the bottom of one side in the aluminum alloy stand column are provided with insulation protection sleeve wire passing holes. According to the photovoltaic curtain wall system, each piece of photovoltaic glass on the curtain wall system is divided into independent small units, and a plurality of photovoltaic curtain wall assemblies are evenly arranged on the outer wall face to form a complete curtain wall; the connecting components are arranged to be connected with the keel cross beams, installation is easy and convenient, independent disassembly can be conducted, and overhaul and maintenance are very convenient and fast; and meanwhile, the photovoltaic glass cable is ingeniously hidden in the curtain wall stand column and the cross beam, so that any change cannot be seen from the appearance, and perfect fusion is realized.

The utility model relates to a novel tower beam damping device for a large-span bridge, and the device comprises a kinetic energy conversion mechanism which comprises a rack connected to the bottom of a main beam, and a step-up gear box which is fixed on a bridge tower cross beam and is in transmission connection with the rack, and the step-up gear box converts the linear motion of the rack into rotary motion; and the vibration reduction damping mechanism comprises a rotary motion damper and an inertia element which are connected with the output shaft of the step-up gear box, and the inertia element and the rotary motion damper are coaxially connected to the step-up gear box or connected to the step-up gear box in parallel. When the main beam is subjected to the dynamic load effect, large longitudinal displacement occurs, the beam bottom fixing rack axially moves along with movement of the main beam, a gear train in the step-up gear box is driven to rotate, an inertia element connected with the step-up gear box is driven to rapidly rotate, huge equivalent mass is provided, and energy consumption is enhanced; meanwhile, the step-up gear box can be connected with the rotary motion damper in parallel, large enough damping is provided for the whole device, and the purposes of energy consumption, vibration reduction and displacement reduction are achieved.

The invention provides an arch-shaped energy dissipation and shock absorption supporting device for a building, which belongs to the technical field of building devices and comprises steel columns, steel beams and arch-shaped energy dissipation and shock absorption supports. The steel columns and the steel beams form a frame structure through high-strength bolts or in a welding mode. The arch-shaped energy dissipation and shock absorption support is arranged in the frame structure and is formed by welding two arch-shaped steel pipes in a crossed mode. The structure is simple and compact and installation is convenient and flexible. And secondly, the arch-shaped energy dissipation and shock absorption support has good energy dissipation performance, vibration input energy can be effectively consumed, and the dynamic response of the structure is reduced. Meanwhile, the device is made of low-yield-point steel and has high strain rate sensitivity and excellent fatigue performance. In addition, the arch-shaped energy dissipation and shock absorption support can be compatible with a conventional steel column and steel beam frame, special structural arrangement is not needed, and the actual use requirement of a building is better met. The problem that an existing energy dissipation and shock absorption device is complex in structure is solved.

The invention discloses an air conditioner low-frequency operation control method and system, relates to the technical field of air conditioner low-frequency operation control, and solves the technical problems that in the prior art, an air conditioner low-frequency operation decision cannot be synchronously analyzed according to the environment and environmental influence, and an air conditioner cannot be accurately controlled to enter a low-frequency operation state. The method specifically comprises the steps that a low-frequency operation decision-making unit conducts decision analysis on low-frequency operation of the air conditioner, decision-making information is obtained, air conditioner low-frequency operation decision-making coefficients are obtained according to a formula, whether low-frequency operation is executed currently or not is deduced through operation decision-making coefficient comparison, and meanwhile after low-frequency operation is executed through analysis, the low-frequency operation is executed. And the frequency conversion decision detection unit performs frequency conversion decision detection on the low-frequency operation time period of the air conditioner, acquires frequency conversion risk duration data and frequency conversion risk influence data in the operation time period, and deduces whether the frequency conversion decision detection is abnormal or not according to data comparison, if yes, regulation and control are performed, and if not, low-frequency operation is continuously performed.

The invention discloses a lower limb exoskeleton control weight distribution prediction method based on artificial intelligence. Comprising the following steps that a, biomechanical data, including but not limited to joint angles, muscle activities and ground counter-acting force, of the lower limbs of a wearer are collected through a plurality of sensors; b, a deep learning model is utilized, and the model is trained through a large amount of lower limb movement data in advance to recognize weight distribution characteristics in different movement modes; c, according to the collected biomechanical data, the model predicts the weight distribution borne by each part of the lower limb in real time; and d, according to a prediction result, intelligently adjusting the supporting force of each joint of the exoskeleton so as to optimize the gait of the wearer and reduce energy consumption. Energy consumption and exercise efficiency are optimized, specifically, according to the predicted weight distribution, the supporting strategy of the exoskeleton is intelligently optimized, the energy consumption of the wearer in the exercise process is reduced, and the exercise efficiency is improved. And by reducing unnecessary energy waste, the service life of the battery is prolonged, and the practicability of the exoskeleton is enhanced.

The full-spiral stirrup rectangular stand column is formed by jointly pouring a concrete rectangular frame column, a steel reinforcement framework and concrete, the steel reinforcement framework comprises longitudinal bars, large spiral stirrups, small circular spiral stirrups and tie bars, the large spiral stirrups are arranged on the inner side face of the concrete rectangular frame column in an attached mode, and the small circular spiral stirrups are arranged on the inner side face of the concrete rectangular frame column in an attached mode. The longitudinal bars are evenly arranged along the periphery of the rectangular section of the concrete rectangular frame column and connected with the inner edge peripheries of the large spiral stirrups and the inner edge peripheries of the small circular spiral stirrups respectively, and the tie bars are located between the small circular spiral stirrups and connected between the two opposite longitudinal bars. The structure breaks through the limitation that a traditional spiral stirrup is only suitable for a circular stand column, overcomes the defect that the spiral stirrup is applied to a rectangular stand column, and enables concrete at four corner points of the stand column to fully exert the restraining effect. The constraint effect of the spiral stirrups on concrete is fully exerted, the bearing capacity and ductility of the stand column are improved, mechanical automatic rolling forming can be fully utilized, the labor intensity and dependence on manpower are reduced, the accuracy of steel bar engineering and the quality and safety of the structure are improved, the industrialization degree is high, and good economic benefits are achieved.

A damper cycle index synergistic assembly type damping system comprises a damper cycle index synergistic mechanism transversely arranged on the upper portion of a middle beam and interlayer displacement transmission mechanisms connected with the damper cycle index synergistic mechanism and arranged at beam column joints of four corners. When the frame deforms laterally, the steel strand drives the bull gear transmission shaft to rotate, the bull gear and the bull gear transmission shaft have the same rotation angle, the diameter of the bull gear is far larger than that of the bull gear transmission shaft, and structural interlayer displacement is amplified; then the large gear drives the small gear and the oval track disc to rotate, the oval track disc rotates to drive the steel column on the connecting rod to horizontally reciprocate, the oval track rotates by one circle, and the damper reciprocates by two circles; linear displacement of the structure is converted into rotating displacement through the steel strands, the steel strands are matched with components such as gears, multiple times of circulating reciprocating work of the damper can be achieved under the condition that the structure reciprocates by one circle, energy consumption of the damper is increased, meanwhile, displacement of the damper is limited, and damage to the damper due to too large displacement is avoided.

The invention provides a multistage energy dissipation and shock absorption bridge support structure which comprises an upper support, a middle support, a lower support, a limiting assembly and a plane friction assembly, the middle support is located between the upper support and the lower support, the plane friction assembly is located on the lower support, the limiting assembly is arranged on the plane friction assembly and makes contact with the upper support, and the plane friction assembly is located on the lower support. The limiting assembly comprises a limiting plate, a shearing bolt and a shearing pin, and the shearing bolt and the shearing pin sequentially penetrate through the limiting plate and the plane friction assembly and extend to the lower support. According to the support structure, during medium and small earthquakes, primary shock absorption and energy consumption are achieved through the shearing process of the shearing bolts and the shearing pins; when a great earthquake occurs, after the shearing bolt and the shearing pin are sheared off, burrs at the shearing connector of the shearing pin and the shearing bolt rub the plane friction assembly, the friction coefficient of the plane friction assembly is increased, the energy dissipation capacity is improved, and the second-stage damping energy dissipation effect is achieved.

A fabricated reinforced concrete prefabricated column connecting structure comprises a lower prefabricated column and an upper prefabricated column, longitudinal load-bearing steel bars are arranged in the upper prefabricated column and the lower prefabricated column, a connecting column head protrudes out of one end of the upper prefabricated column, a plurality of screw holes are formed in the end face of the connecting column head, and leveling screw rods are in threaded fit with the screw holes; the upper prefabricated column is provided with a protruding connecting column head, the connecting column head is aligned to the lower prefabricated column face to face, the load of the upper prefabricated column is transmitted to the column top of the lower prefabricated column through the leveling screw rod, the leveling screw rod is rotated to level the upper prefabricated column, and stirrups are bound to the peripheries of longitudinal load-bearing steel bars of the upper prefabricated column and the lower prefabricated column. The number of the screws on the upper portion is large enough to support the vertical load of the upper prefabricated column, the column top of the lower prefabricated column is scabbled, the upper prefabricated column is leveled by adjusting the leveling screws after the upper prefabricated column is hoisted in place, a cast-in-place section is poured secondarily after the upper prefabricated column is supported by the supporting legs to be stable, and accurate centering and leveling of the upper prefabricated column and the lower prefabricated column can be achieved.

The invention provides a preparation method and device of quinoxaline compounds, and belongs to the technical field of quinoxaline compound synthesis. The preparation method of the quinoxaline compound comprises the following steps: mixing a substituted 1, 2-dicarbonyl compound and a substituted o-phenylenediamine compound to obtain a mixed raw material; and blowing the mixed raw material into a reaction chamber for reaction to obtain the quinoxaline compound, and finally, carrying out vacuum drying on the quinoxaline compound. High-speed spiral gas is formed in the reaction cavity through high-pressure carrier gas, and the mixed raw materials react in the high-speed spiral gas flow. The preparation process provided by the invention has the advantages of low equipment investment, simple process, high reaction speed, high yield, no need of participation of any solvent and catalyst, environmental friendliness and capability of reducing the production cost.

The invention belongs to the field of basalt fiber photovoltaic supports, and discloses an energy-consuming basalt fiber photovoltaic support without trepanning connection, which is characterized in that a plurality of groups of energy-consuming connecting pieces are arranged on a stand column, and each energy-consuming connecting piece comprises a buckle, an energy-consuming assembly and a pre-embedded connecting steel plate; the buckle is used for fixing the basalt fiber supporting structure and providing stable inclined supporting force and vertical supporting force for the basalt fiber purline; the energy dissipation assembly consumes external load energy through friction, and the anti-seismic and wind-resistant performance of the support is enhanced; the whole support is connected without opening holes, stress is effectively dispersed, local stress concentration is avoided, and the material performance is kept; the energy dissipation assembly enables the support to be in rigid connection under the load and then to be in flexible connection, energy is consumed, load transmission is limited, and rod pieces are prevented from falling off and cracking. By adopting the bracket, the problems of mechanical property reduction and stability caused by trepanning are solved, the durability and the safety of the bracket are remarkably improved, and the bracket is widely applicable to different geographical and climatic conditions.

The invention discloses an object tracking method, a mobile intelligent device, a medium and a product, and relates to the mobile intelligent device. The method comprises the following steps: when a user object walks in a target area, receiving an area sound signal collected by the acoustic sensor; extracting a target foot sound signal of the user object from the area sound signal; determining relative position information and walking speed of the user object according to the target footstep sound signal; and controlling the moving direction and the moving speed of the mobile device to be matched with the user object according to the relative position information and the walking speed so as to track the display device. The footstep sound signals of the user are accurately captured and tracked through the acoustic sensor, real-time monitoring of user actions and automatic following of the mobile device are achieved, and interactivity and user experience of the device anytime and anywhere are enhanced.

The utility model relates to an SNCR (selective non-catalytic reduction) and SCR (selective catalytic reduction) collaborative denitration ultra-low emission system for a coal-fired boiler. The system comprises an SNCR denitration unit, a primary economizer, an airflow uniform distribution device, an SCR denitration unit and a secondary economizer, the SNCR denitration unit consists of an ammonia water / urea solution tank, a delivery pump and a spray gun; and the SCR denitration unit comprises an SCR layer. The system disclosed by the utility model is simple and reasonable in structure, reliable in operation, low in investment and operation cost, long in service life and free of secondary pollution, and the NOx-containing flue gas of the coal-fired boiler can be efficiently denitrated and purified.

The utility model discloses an industrial personal computer easy to dissipate heat. The industrial personal computer comprises a mounting plate, a heat dissipation mechanism and a dustproof mechanism, a lower-layer industrial control shell is fixedly connected to the upper end of the mounting plate, an upper-layer industrial control shell is placed at the upper end of the lower-layer industrial control shell, threaded holes which are uniformly distributed are formed in the upper ends of the lower-layer industrial control shell and the upper-layer industrial control shell, and fixing bolts are in threaded connection between the vertically adjacent threaded holes; according to the industrial personal computer easy to dissipate heat, heat generated in the industrial personal computer is rapidly discharged from the upper portion of the device through rotary air draft, external cold air is sucked in from the two sides, the industrial personal computer can dissipate heat rapidly, the device is additionally provided with a dustproof assembly, when the industrial personal computer is not used, the dustproof assembly is arranged on the upper portion of the industrial personal computer, and the dustproof assembly is arranged on the lower portion of the industrial personal computer. External dust is prevented from covering internal components of the industrial personal computer, too high energy consumption caused by the dust when the industrial personal computer is used is avoided, and heat generated by the industrial personal computer is reduced.

The invention provides a viscous damping device based on displacement amplification. Belongs to the technical field of building anti-seismic equipment and comprises a lower mounting plate, an upper mounting plate and a viscous damper, the viscous damper is mounted between the lower mounting plate and the upper mounting plate, two lower gusset plates are fixedly mounted at the top of the lower mounting plate, two upper gusset plates are fixedly mounted at the bottom of the upper mounting plate, and the upper gusset plates are fixedly mounted at the bottom of the upper mounting plate. A first fixing plate is rotationally installed between the two lower gusset plates, the viscous damper is rotationally installed on the first fixing plate, and a connecting arm located above the viscous damper is fixedly installed on the first fixing plate. The viscous damping device based on displacement amplification has the advantages that the viscous damper can obtain the enhanced energy consumption effect under the condition of small displacement, the damping performance of a building under the earthquake action is improved, related personnel can conveniently obtain the operation condition of the viscous damper in the earthquake, and use is reliable.

The invention provides a truss bridge node supporting device and a truss bridge. The truss bridge node supporting device comprises an upper bearing plate, a lower bearing plate, a corrugated metal plate, a first arc-shaped plate and a second arc-shaped plate. The upper bearing plate is detachably connected with a node of the truss bridge, and the two ends of the corrugated metal plate are fixedly connected with the upper bearing plate and the lower bearing plate respectively; the first arc-shaped plate and the second arc-shaped plate have the same structure and are U-shaped metal plates with openings; the upper end and the lower end of the second arc-shaped plate are fixedly connected with the upper bearing plate and the lower bearing plate correspondingly. Wherein the first arc-shaped plate, the second arc-shaped plate and the corrugated metal plate jointly support nodes of the upper bearing plate and the truss bridge, and the lower bearing plate is relatively fixed to the ground or the bridge floor. According to the truss bridge node supporting device, reliable supporting of the truss bridge node is achieved, and the truss bridge node supporting device can be replaced in time when rusted; according to the mechanical design of the overall structure, the safety and durability of the structure are considered, and economical efficiency and practicability are also considered.

The invention relates to the technical field of seismic mitigation and isolation, and discloses a building high-damping magneto-rheological seismic isolation device which comprises a bottom plate, a vertical seat, a main plate and a reset column, through grooves are formed in the two sides of the upper surface of the bottom plate, and two sleeve blocks are slidably clamped in the through grooves. According to the high-damping magneto-rheological shock insulation device for the building, the rigidity and damping of the shock insulation support are controlled by changing the size of a magnetic field, the resonance phenomenon is effectively avoided, meanwhile, when a sliding block moves downwards, a third gear is driven to rotate, meanwhile, the third gear can drive a second gear to rotate, and therefore the shock insulation effect is improved. When a sliding block moves, a rack can carry a sleeve block to synchronously move, a reset spring is driven to stretch, the pulling force of the reset spring is applied to the sleeve block, the rack is driven to move, and a multi-buffering and damping mechanism and multi-stage buffering and damping are achieved. And the vibration can be counteracted through the reset spring and the first magneto-rheological damper, so that different types of vibration are adapted, and the vibration isolation effect is achieved.

The utility model provides an energy dissipation and shock absorption node for a beam column of a recombined bamboo frame, belongs to the technical field of civil construction structures, and solves the problems that the research on the connection form of a recombined bamboo component is insufficient, tenons are easy to pull out in the traditional tenon-and-mortise connection mode, and splitting damage is easy to occur in the steel filling plate-bolt connection mode. The joint comprises a recombined bamboo column, a recombined bamboo beam and a special-shaped steel filling plate connecting piece, the joint adopts combined connection of mortise and tenon connection and steel filling plate-bolt connection, the relative displacement of the recombined bamboo column and the recombined bamboo beam is effectively limited to be too large, and joint failure caused by tenon pulling is avoided. The middle layer of the special-shaped steel filler plate connecting piece is a recombined bamboo plate, and splitting damage caused by local extrusion is effectively prevented. The outermost layer is the friction energy dissipation composite rubber sheet, under the earthquake action, the bolts slide relatively through the long circular bolt holes to dissipate energy, and meanwhile the friction energy dissipation composite rubber sheet on the outer surface layer of the connecting piece dissipates energy through friction. The steel filling plate connecting piece is arranged to be in a special shape, so that stress distribution is more reasonable.

The invention discloses a low-damage self-resetting concrete column foot connecting joint structure and a construction method, the low-damage self-resetting concrete column foot connecting joint structure comprises a concrete foundation, a low-damage prefabricated concrete frame column, a prestressed steel strand and a low-yield-point energy-consuming reinforcing steel bar, the prestressed steel strand penetrates through the concrete foundation and the low-damage prefabricated concrete frame column and is tensioned and anchored; the concrete foundation and the low-damage prefabricated concrete frame columns are connected; the low-yield-point energy-consuming steel bars are pre-buried at the bottoms of the low-damage prefabricated concrete frame columns; the problems that in an existing multi-layer self-resetting concrete bottom layer column foot connecting joint, column bottom concrete is seriously damaged by pressure under the action of a high axial compression ratio and in a large deformation state, and resetting after an earthquake is affected are solved, meanwhile, the energy dissipation capacity of a component is improved by combining the energy dissipation steel bars, damage and residual deformation of the concrete at the end of the component under the action of the earthquake are reduced, and the energy dissipation performance is improved. And the repairable performance of the structure is improved.

The invention relates to a gallium indium tin oxide film and a preparation method thereof. The preparation method of the gallium indium tin oxide thin film comprises the following steps: carrying out corona treatment on the surface of a substrate to obtain a pretreated substrate; preparing a liquid gallium-indium-tin alloy; and coating the surface of the pretreated substrate with a liquid gallium-indium-tin alloy to obtain the gallium-indium-tin oxide film. The preparation method of the Ga-ITO film has the advantages of being short in flow process, high in controllability, low in energy consumption, high in adjustability and the like, raw materials needed in the preparation process are non-toxic, convenient to collect and reusable, and the preparation cost of the Ga-ITO film can be greatly reduced.

The invention discloses an anti-seismic design method for a prestressed pipe pile frame of a highway prefabricated assembled pile plate type bridge, and belongs to the technical field of prestressed high-strength concrete pipe piles and highway prefabricated assembled pile plate type bridges. The technical problems that a typical highway prefabricated assembled pile plate type bridge prestressed pipe pile frame is obvious in brittle failure characteristic and poor in ductility and energy dissipation capacity are solved; the pipe pile connection transition section serves as a potential plastic hinge area, and the limit displacement and the energy dissipation capacity of the prestressed pipe pile frame are improved by means of the advantages of large limit strain, high energy dissipation capacity and the like of longitudinal ordinary steel bars. Through the capacity protection design, it is ensured that damage is only generated in the pipe pile connection transition section under the earthquake, the damage modes of brittle damage, structural shear damage and the like of the pipe pile standard section are avoided, and the ductility capacity of the prestressed pipe pile frame is improved; through the provided design steps, the design parameters of the prestressed pipe pile frame can be rapidly determined without complex nonlinear earthquake response calculation, and the design efficiency of the structure is remarkably improved.

The invention discloses a reservoir invalid evaporation ecologicalization inhibition system suitable for a pumped storage power station, which comprises a plurality of floating units, and the plurality of floating units are mutually connected to float and cover the water surface of a reservoir; the photovoltaic panels are mounted on the upper portions of the floating units correspondingly; the floating ball floats on the water surface of the reservoir, and the floating ball is arranged in gaps among the plurality of floating units. The solar photovoltaic panels are laid on the water surface of the reservoir to prevent direct solar radiation on the water surface, water surface evaporation is reduced, water surface evaporation of the reservoir is reduced, rubber balls are adopted to float on the water surface along the periphery of the reservoir bank and local photovoltaic panel gaps, direct solar radiation is further shielded, water surface evaporation is reduced, the defects of an existing method can be overcome, and the water surface evaporation is reduced. And huge economic and social benefits can be generated.