5474results about "Building repairs" patented technology

The invention discloses a farm wall reinforcing device. Farm wall reinforcing equipment comprises an adjusting sliding frame, an even number of reinforcing devices are installed on the adjusting sliding frame, protective cover baffles are installed on the surfaces of the reinforcing devices, pouring mold clamping plates are arranged in the reinforcing devices, inner grooves are formed in the upper portions of the pouring mold clamping plates, and an even number of steel bar fixing frames are arranged between the inner grooves. A turnover sealing cover which is movably hinged is installed on the inner groove, a fixing steel bar is installed in the steel bar fixing frame, and an on-plate clamping groove is formed in the surface of the pouring mold clamping plate. The adjusting sliding frame is installed at the position of the root of a wall needing to be reinforced, then the reinforcing devices are installed on the adjusting sliding frame in a back-to-back mode, the reinforcing devices clamp the wall in a butt mode, then the threaded anchor rods are sequentially inserted into the pouring mold clamping plates in a matched mode to form opposite pulling, and the threaded anchor rods are clamped and fastened; and finally, after a wall inserting fixing rod, a wall body connecting clamp and a fixing steel bar are inserted, concrete is poured into a guiding and conveying groove, the concrete and the wall body are combined and solidified, and the reinforcing work of the wall body is completed.

The invention provides a reinforcing beam reinforced by adopting an out-of-service wind power blade and a method for determining the bending rigidity. According to the reinforcing beam, a plurality of grooves are formed in at least one surface of a reinforced concrete beam; the reinforcing layer comprises reinforcing ribs and a cement-based composite matrix, a plurality of protrusions are arranged on the surface of the cement-based composite matrix, the protrusions are arranged at intervals in the length direction of the cement-based composite matrix, and the protrusions are correspondingly embedded into the grooves, so that the reinforcing layer is connected with the reinforced concrete beam to obtain a reinforced concrete reinforced beam; wherein the reinforcing ribs are obtained by disassembling and cutting a main beam of the retired wind power blade. According to the reinforcing beam, the combining capacity of the reinforced concrete beam and the reinforcing layer is high, mutual slippage is avoided, the retired wind power blade composite material resources are utilized, the environment is protected, and the cost is saved while high-performance reinforcing treatment can be conducted on the damaged reinforced concrete beam structure or the reinforced concrete beam structure with insufficient bearing capacity.

The invention relates to an intelligent permeation grouting process and device for concrete crack self-repairing. The intelligent permeation grouting process and device are suitable for crack detection and repairing of a newly-built concrete structure. The device comprises a blood vessel network embedded into concrete, a crack detection sensor, a control module, a pumping module and a self-repairing material storage module, and automatic detection and repairing of cracks are achieved. The technological process comprises crack detection, data analysis, grouting parameter determination, material injection and repair monitoring. Through the automation and intelligence technology, the repairing efficiency and precision are remarkably improved, and the device is suitable for large structures such as bridges and tunnels.

The invention discloses an anti-seismic strengthening method and system suitable for historical buildings, and relates to the technical field of existing building strengthening. The invention discloses an anti-seismic reinforcement system suitable for historical buildings. The anti-seismic reinforcement system comprises a data modeling module, a risk assessment module, a disturbance analysis module, a buffer decision module, a reinforcement early warning module, a component reinforcement decision module, a collaborative reinforcement decision module and a scheduling optimization module. According to the method, the linkage stress relation and the collaborative response characteristics are identified by establishing the structure coupling model of the adjacent buildings and a strength correlation analysis method, and a theoretical basis and a judgment standard are provided for collaborative reinforcement of cross-building units; the collaborative reinforcement strategy is generated according to the linkage requirement, the collaborative mode and the deployment position are defined, and the overall coordination of the community-level reinforcement scheme and the linkage toughness of the structural system are enhanced.

The utility model relates to the field of shell supports, in particular to an adjustable elastic support which comprises a support body, a jacking mechanism arranged on the support body and a support body slidably connected to the top of the support body through the jacking mechanism. The jacking mechanism comprises a positioning assembly arranged on the supporting body and an elastic piece arranged between the positioning assembly and the supporting body, the positioning assembly is used for adjusting the height of the bottom end of the elastic piece, and the supporting body is connected with the vault. The height of the bottom end of the elastic piece is adjusted through the positioning assembly, the elastic piece is compressed, the upper end of the elastic piece is static due to the fact that the elastic piece is connected with the jacking body, when the elastic piece is compressed to the preset length, the jacking force can be known by observing the upward moving distance of the lower end of the elastic piece, and accurate control is facilitated.

The invention provides a machine vision unmanned aerial vehicle curtain wall cleaning control system and method, and belongs to the field of image processing. The system comprises a pollution area identification module, a visual distance processing module, a distance measurement fusion processing module and a pollution level identification module. Wherein the pollution area identification module is used for acquiring a first pollution area, a second pollution area and a pollution similarity coefficient; the visual distance processing module is used for obtaining a first curtain wall distance; the distance measurement fusion processing module is used for collecting a second curtain wall distance and obtaining a curtain wall distance in combination with the first curtain wall distance; the pollution level identification module is used for obtaining the pollution level and carrying out unmanned aerial vehicle cleaning control. The technical problem of insufficient cleaning control precision caused by inaccurate distance measurement during curtain wall cleaning of the unmanned aerial vehicle in the prior art is solved, and the technical effects of improving the curtain wall distance measurement precision and realizing accurate cleaning control are achieved.

The invention belongs to the technical field of wall joint filling, and relates to a wall cracking joint filling agent and a wall joint filling process, the wall cracking joint filling agent comprises a cement-based cementing material, fine aggregate, modified toughening fiber, modified nano zinc oxide, a dispersing agent, a defoaming agent, a water-retaining agent and a mildew preventive; the modified toughened fiber is obtained by sequentially carrying out alkali etching, dopamine coating and intercalated kaolin loading on polyacrylonitrile fiber; the modified nano-zinc oxide is obtained by modifying nano-zinc oxide through a silane coupling agent and coating and modifying the nano-zinc oxide through chitosan. According to the wall crack repairing agent provided by the invention, the modified toughening fibers and the modified nano zinc oxide which are subjected to surface functionalization treatment are introduced, so that the crack resistance and toughness of a cement-based crack repairing material can be remarkably improved, the occurrence probability of secondary cracking after repairing can be remarkably reduced, meanwhile, lasting and effective mildew-proof and antibacterial capabilities can be provided, microbial erosion can be inhibited, and the service life of the wall crack repairing agent is prolonged. And good construction operability and basic mechanical properties of the material are maintained.

The utility model relates to the technical field of constructional engineering, and discloses structural gap grouting equipment for constructional engineering construction, which comprises a base, a grouting mechanism is arranged at the top of the base, the grouting mechanism comprises a box body and a pump machine, the box body and the pump machine are both fixedly connected with the base, the input end of the pump machine is communicated with the base, and the output end of the pump machine is communicated with the base. The output end of the pump machine communicates with a grouting pipe through a hose, and a moving mechanism is arranged in an inner cavity of the base. By arranging the grouting mechanism, slurry condensation can be avoided, a grouting pipe can be conveniently used for grouting by opening a pump, the device is convenient to move by arranging the moving mechanism, a user can conveniently push the device by pushing a handle, the grouting pipe can be fixed by arranging the adjusting mechanism, and the grouting pipe can be driven to rotate by opening a third motor. The grouting direction can be adjusted conveniently, the height of the grouting pipe can be adjusted by starting the first motor, grouting can be conducted on ceilings, floors and vertical joints, and use is convenient.

The invention provides an ancient city wall repairing grouting material, a preparation method and a grouting device, and relates to the field of city wall repairing, the grouting material comprises the following components by weight: 50-60 parts of slaked lime, 15-20 parts of cement, 25-60 parts of mineral powder, 90-120 parts of sea sand, 10-30 parts of modified shell powder, 30-40 parts of water, 10-15 parts of glutinous rice slurry, 1-3 parts of alum, 7-9 parts of a bacillus pasteurii liquid, and 7-8 parts of a mineralization reaction liquid. The grouting device comprises a grouting device body, a discharging pipe and a grouting supporting mold, and a stirring mechanism is arranged at the top of the grouting device body; the grouting supporting mold comprises a base, a main frame, a plurality of adjusting plates and a plurality of extension rods. Through the synergistic effect of the microorganisms, the modified shells and the mineral powder, efficient preparation of the ancient city wall slurry from old to old, modification treatment of shell carriers and regulation and control of the acid-base environment of the microorganism slurry are achieved, urease-driven carbonate precipitation generation and color fixation are achieved, and a new solution is provided for the microorganism grouting technology.

The invention discloses a modular steel structure building connecting joint and a design, construction and disassembly method thereof, which are used for connecting an upper layer module unit and a lower layer module unit or a lower layer foundation, and a frame column is a split type frame column and comprises an upper column section, a lower column section, a connecting steel plate and a column transverse locking pin shaft, the quick positioning, assembling and disassembling assembly comprises a pressure-bearing gusset plate, a conical guide column and a node transverse locking pin shaft, the pressure-bearing gusset plate is horizontally arranged and used for being connected with a lower-layer module unit or a lower-layer foundation, and the conical guide column is fixedly connected to the top face of the pressure-bearing gusset plate. The connecting joint is convenient to transport, can be quickly mounted on site, and can be reused after being dismounted.

The invention discloses a storey-adding construction method for a basement with an existing box type foundation and a multi-layer frame structure, and belongs to the technical field of constructional engineering and city renewing.The storey-adding construction method comprises the following steps that S1, storey-adding buildings of the existing basement are evaluated; s2, underground diaphragm wall construction; s3, reinforcing the existing basement storey-adding building foundation; s4, the overground structure of the existing basement storey-adding building is reinforced; s5, foundation underpinning construction is conducted; s6, earth excavation is conducted at the storey-adding position of the existing basement; s7, construction of a storey-adding foundation bottom plate; and S8, layer-adding underpinning column and top plate construction. According to the storey-adding construction method for the basement with the box type foundation and the multi-layer frame structure, storey-adding transformation is conducted on the basement of an existing building, the usable area of the building is effectively increased, the construction efficiency is improved, the influence on the surrounding environment is reduced, and the urban development and the ever-increasing space requirements of people are met.

The invention provides a cleaning device and a cleaning robot. The cleaning device comprises a roller assembly and a mounting frame, the roller assembly is used for washing a surface to be cleaned, the mounting frame is provided with a mounting groove, and the roller assembly is arranged in the mounting groove and rotationally connected with the mounting frame; a water recycling thin cavity is formed in one side of the mounting groove, an opening used for recycling water stains on the working face is formed in the side, close to an opening of the mounting groove, of the water recycling thin cavity, and a plurality of water drainage openings are formed in the side, away from the opening, of the water recycling thin cavity; a sewage inlet communicated with the mounting groove is further formed near the middle of the water recovery thin cavity, a water squeezing block used for squeezing the roller assembly is arranged at the sewage inlet, the water squeezing block is a water scraping strip perpendicular to the roller assembly in the radial direction, and the water squeezing block and the sewage inlet extend in the length direction of the roller assembly. Sewage carried by the roller assembly and residual water stains on the wall surface can be effectively recycled at the same time, and the wall surface cleaning effect is good.

To provide a method for removing a floor slab of a composite girder capable of reducing concrete remaining on the girder.SOLUTION: Since a cutting-in 5 extending in the bridge-axis direction is formed from the upper surface side of a floor slab at each arrangement location of a slippage preventing member 4 of a floor slab 3, and the floor slab 3 on which the cutting-in 5 is formed is pulled upward from main girders 2 and removed, the resistance force between the slippage preventing member 4 and the concrete of the floor slab 3 against the tensile load can be reduced by the cutting-in 5, and the floor slab 3 can be easily separated from the main girders 2. Thus, since it is not necessary to cut the floor slab 3 in the bridge axial direction such that concrete remains on the main girder 2 as in the related art, the floor slab 3 on the main girder 2 can be lifted and removed at once without being divided in the direction perpendicular to the bridge axis. As a result, the efficiency of the removal work can be improved, and there is an advantage that a large-scale concrete crushing work is not required.SELECTED DRAWING: Figure 5

The utility model relates to a construction platform supporting structure, and relates to the field of supporting structures, the construction platform supporting structure comprises a lower layer supporting structure arranged at the bottom of a platform body and a wall-attached supporting structure arranged at the top of the platform body, the platform body is supported by the lower layer supporting structure, and the edge of the platform is supported by the wall-attached supporting structure; the lower-layer supporting structure and the wall-attached supporting structure are both located at the position close to the wall edge, and the position of the lower-layer supporting structure corresponds to the position of the wall-attached supporting structure. According to the platform, partial load borne by the platform can be transmitted to the wall-attached supporting structure, and is transmitted to the platform body at the bottom and the lower-layer supporting structure through the wall-attached supporting structure, so that the overall stability and bearing capacity of the platform are improved.

The invention discloses a green energy-saving curtain wall and a construction transformation method thereof, and relates to the technical field of building curtain walls, the green energy-saving curtain wall comprises a glass frame, two ventilation box bodies and a photovoltaic frame, the two ventilation box bodies are installed at the upper end and the lower end of the glass frame respectively, and the photovoltaic frame is fixedly installed on the side wall of the glass frame; a clamping and fixing structure is installed in the glass frame, ventilation control structures are installed in the two ventilation box bodies, connecting structures are installed on the outer sides of the two ventilation box bodies, and an extending control structure is installed on one side of the photovoltaic frame. According to the green energy-saving curtain wall, through multi-structure innovative cooperation and multi-structure collaborative design, functionality, installation efficiency and energy utilization efficiency are optimized, thin film photovoltaic glass and an adjustable photovoltaic panel are adopted for collaborative power generation, the thin film photovoltaic glass is embedded in a curtain wall body, and the angle-adjustable photovoltaic panel extending out of a frame is combined, so that the curtain wall is more energy-saving and environment-friendly. And a dual power generation structure is formed.

A micro injection assembly for the repair of floors that includes an adapter body operably configured to couple with a tube having adhesive and defining an internal channel, a hub selectively removably coupled to the adapter body and having a rigid needle member coupled thereto and recessed within the hub, wherein the rigid needle member projects outwardly from the second end of the hub in a linear orientation, has a blunt distal end, and defines a needle channel spanning the length of the needle member. The assembly also includes a cap selectively removably couplable to the adapter body in a watertight configuration and with the cap disposable in an overlapping configuration with the adapter body. The assembly is operable to effectuate emission of an adhesive material from a tube through the adapter body, hub, and needle member to spaces between a flooring material and subfloor.

The invention relates to the field of buildings, in particular to an externally-reinforced concrete-filled steel tube column and a peak bearing capacity calculation method, and the externally-reinforced concrete-filled steel tube column comprises a steel tube and core concrete located in the steel tube; a UHPC layer is poured on the outer ring of the steel pipe, the section of the outer ring of the UHPC layer is square, and the center line of the UHPC layer coincides with the axis of the steel pipe. Stirrups located on the outer ring of the steel pipe are embedded in the UHPC layer, and longitudinal steel bars are arranged on the inner ring of the stirrups in the vertical direction. The invention provides an external reinforcement type concrete filled steel tubular column. The method can reinforce the concrete filled steel tube with the annular void area, so that the actual bearing capacity of the concrete filled steel tube exceeds the original design value level. The invention further provides a method for calculating the peak bearing capacity of the externally-reinforced concrete-filled steel tube column, the peak bearing capacity of the reinforced concrete-filled steel tube can be quantitatively evaluated, and a theoretical basis is provided for subsequent use and maintenance of the concrete-filled steel tube.

The invention discloses a high-performance concrete repairing material, application and a concrete structure repairing method, and belongs to the technical field of concrete structure repairing. The high-performance concrete repairing material is prepared from Portland cement, rapid hardening cement, an inert mineral admixture, an early strength agent, a submicron mineral admixture, a nano material, an anti-freezing binder, fibers, a retarder, a volume compensating agent, fine aggregate, coarse aggregate, a water reducing agent, a defoaming agent and water. Through the interaction of all the components, the functions of early strength, volume stability, freezing resistance, salt freezing resistance, fracture resistance, shrinkage resistance and the like are achieved, through the synergistic effect of all the components in the material, the overall performance of the material is improved, and the material has excellent adaptability and multifunctionality under different environmental conditions; therefore, long-term stable guarantee is provided for application in various damage scenes, and the proportion of each component of the material can be adjusted according to actual requirements of concrete structures so as to meet efficient repair in different damage scenes.

The utility model belongs to the technical field of existing building expansion construction, and discloses a pile-to-column reinforcing construction device, which aims to solve the technical problems existing in the prior art that a pile foundation is adopted to form an underground space through downward digging of the pile foundation, and comprises a raft plate arranged on the upper portion of an original pile, and drilling anchoring holes are longitudinally formed in the periphery of the raft plate. Longitudinal load-bearing steel bars are anchored in the drilling anchoring holes and located on the outer side of the original pile, the tops of the longitudinal load-bearing steel bars penetrate through and are fixed to the original bearing platform, columns are arranged on the top of the original bearing platform, formworks are arranged on the peripheries of the longitudinal load-bearing steel bars, pouring pipes are connected to the formworks, and the pouring pipes penetrate through the original floor slab and then are connected with pouring funnels. And a concrete layer is poured between the template and the original pile. By means of the characteristics of a building structure and a high-position pressurization method, pouring of concrete of the enlarged section is improved, the concrete is compacted through the pressure of the concrete, and the phenomenon that pouring of concrete at the bottom of an original bearing platform and a newly-added section is not compact is avoided.

The invention belongs to the technical field of added elevators, and discloses a fast-assembly type added elevator steel structure main body and a preparation and assembly method thereof, and the fast-assembly type added elevator steel structure main body comprises a hoistway, a door frame and a corridor. The hoistway is composed of four vertical stand columns and a plurality of transverse beams, the ends of the beams are connected with the connecting faces of the stand columns through connecting pieces, each connecting piece comprises a pair of triangular pieces formed by three steel plates perpendicular to one another, a first plate is connected with the stand columns, a second plate is connected with the beams, and a third plate is an inclined strut reinforcing rib. The door frame comprises door head steel beams between the front stand columns, sill steel beams and landing door stand columns between the sill steel beams, the corridor is connected with the outer sides of the sill steel beams, and through holes in the ends of the edge beams are matched with kidney-shaped holes of the mounting bases to adjust the position. The square pipe joints of the front stand column and the rear stand column are staggered in position. The device is fast to install, stable in structure, convenient to adjust, convenient to overhaul and maintain and suitable for the elevator adding project of the existing building.

The invention provides a basement large plate structure steel plate overlapping reinforcing structure and a construction method, and relates to the field of structural engineering.The basement large plate structure steel plate overlapping reinforcing structure comprises a large plate structure plate reinforcing structure which is connected to the lower portion of an original concrete plate and located in a large plate structure plate reinforcing area. The large plate structure plate reinforcing structure comprises a prefabricated newly-added concrete structure which is prefabricated and poured on the upper portion of a reinforcing steel plate, and a notch is reserved in the upper end of the prefabricated newly-added concrete structure; the reinforcing steel plate is arranged on the lower portion of the prefabricated newly-added concrete structure, and interface connection between the reinforcing steel plate and the prefabricated newly-added concrete structure is further achieved through the shear connector. The connecting steel bars are arranged on the reinforcing steel plates; the mortar layer is arranged on the upper surface of the convex part of the prefabricated newly-added concrete structure; the cast-in-place newly-added concrete is arranged at the notch; and the tensile steel bars are partially embedded in the original concrete slab and are partially embedded in the cast-in-place newly-added concrete. The original large plate structure can be reinforced conveniently, quickly, economically and reasonably, the bearing capacity of the structure is improved, and the durability of the structure is enhanced.

The application relates to the technical field of wall body dismantling, and discloses a building wall body dismantling device capable of guaranteeing the completeness of old bricks, which comprises a surrounding wall and a bearing box, further comprises a dismantling unit arranged on the bearing box, the dismantling unit comprises a flattening component and a cutting component arranged in the bearing box; the flattening component comprises shafts arranged on the inner walls of the bearing box, deflection frames arranged on the shafts, and a plurality of connecting rods arranged on the inner walls of the deflection frames; through the dismantling unit, a construction worker can divide a wall body into a plurality of wall body units when dismantling the wall body, and slowly lays down the single wall body units one by one, and through the cutting unit, the wall body units after being laid down are cut in the horizontal direction, the wall body units are divided into strips one by one, and then the strip-shaped wall bodies are cut into single bricks, so that the safety during the dismantling of the wall body is effectively improved, the completeness of the bricks is guaranteed, the construction cost is reduced, and the utilization rate of resources is improved.

The invention belongs to the technical field of building terraces, and particularly relates to a paint terrace shrinkage joint repairing device and a repairing method thereof.The repairing method includes the steps that intelligent recognition of crack features is achieved through a multi-modal sensing network, feature fusion is conducted on multi-source data through a convolutional neural network algorithm, structural cracks and surface cracks are automatically distinguished, and a repairing result is obtained. Obtaining a detection map; based on the detection map, comprehensively considering crack parameters, environmental conditions and construction period requirements, and automatically generating an optimal repairing scheme; the self-adaptive mixing system is driven to complete dynamic modulation of the repairing material; high-precision filling operation is executed through the intelligent mechanical arm; a full-periodicity performance evaluation model is constructed through an Internet of Things monitoring terminal, a repairing result is monitored, an intelligent mechanical arm is adopted, a path is re-planned in real time through an RRT algorithm, and Z-shaped layered filling is executed, so that the filling fullness is improved.

The invention relates to the technical field of historic building crack repair, and discloses a microbial concrete grouting device for historic building repair, comprising: a sealing plate used for sealing a crack and provided with a through groove; the embedded rod is obliquely inserted into the ancient building and is inserted into the sealing plate; the pouring rods are vertically inserted into the crack through the through grooves, one end of each pouring rod abuts against the deep end of the crack, the depth of the crack is reflected through the display position of the other end of each pouring rod, and the pouring rods are arranged at intervals; the plugging block is installed in the through groove in a sliding mode, a penetrating hole allowing the pouring rod to penetrate through is formed in the plugging block, and after the pouring rod penetrates through the plugging block, the crack is plugged; a plurality of charging baskets; the stirring barrel is provided with a stirring paddle and is communicated with the plurality of material barrels; one end of the peristaltic pump is communicated with the stirring barrel, and the other end is communicated and detachably connected with the pouring rod; and the cart is used for transporting and accommodating the material barrel. The depth of the crack can be visually obtained, and the crack can be repaired from deep to shallow.

A temperature-controlled epoxy resin sealing compound asphalt crack repair gun, comprising a transport trolley (1), characterized in that a storage container (2) is arranged in the center of the top side of the transport trolley (1), a heating plate (5) is arranged in the center of the outside of the storage container (2), the left side of the storage container (2) penetrates through a T-piece (14) and is firmly connected thereto, one end of the T-piece (14) is firmly connected to a liquid line (11), one end of the liquid line (11) is firmly connected to a peristaltic pump (4), a spray gun (3) is arranged on the top side of the right side of the transport trolley (1), the center of the interior of the storage container (2) is firmly connected to a partition plate (20), the front and rear sides of the top side of the partition plate (20) are firmly connected to temperature sensors (16),the rear part of the left liquid line (11) penetrates through a waste line (17) and is firmly connected thereto, one end of the waste line (17) is firmly connected to a waste container (18), and the front right side of the top of the transport trolley (1) is firmly connected to a control panel (15).

The utility model discloses an assembly type building wall connection reinforcing structure which comprises a prefabricated wall panel, a reinforcing beam, a reinforcing embedded part and a connecting piece, an arc-shaped buckling groove is formed in the left side edge of the prefabricated wall panel, a protruding arc-shaped buckle is arranged on the right side edge of the prefabricated wall panel, and embedded grooves are formed in the upper end and the lower end of the prefabricated wall panel respectively. A reinforcing embedded part is fixedly connected into the embedded groove, a buckling groove is formed in the surface of the reinforcing embedded part, a strip-shaped groove is formed in the surface of the reinforcing cross beam, a fixing groove is formed in the strip-shaped groove, a plurality of positioning blocks are further arranged in the strip-shaped groove, protruding buckling pins are arranged on the surfaces of the positioning blocks, and the buckling pins and the buckling groove are connected in a buckled mode; the connecting piece is vertically installed on the lower surface of the reinforcing beam. The reinforcing embedded part is arranged at the top of the prefabricated wall panel and is matched with the adjustable positioning block in the reinforcing cross beam, so that buckling connection can be conveniently carried out when the prefabricated wall panel is mounted, and the mounting convenience of the prefabricated wall panel is improved.

The invention discloses a steel-wood composite structure joint construction method, which belongs to the technical field of laminated wood bar planting, and comprises the following steps: forming a plurality of bar planting holes in a wood arched beam in a finish machining manner in a factory; after the reinforcing steel bars are pretreated, steel limiting pins are welded to the two ends of the reinforcing steel bars; glue is injected into the glue injection holes in the two sides of the steel bar planting hole at the same time, the wood arched girders are tightly jacked towards the inner side after glue injection is completed, pressing force is provided, and it is guaranteed that the multiple wood arched girders are tightly connected. By means of the mode, the steel-wood joints are fixed through the temporary pin shafts, the number of the pin shafts is half of the total number of the bolt holes, the bolt holes are adopted for positioning, the joints are fixed after all the bolt holes are aligned, and the joint installation precision is guaranteed; staggered trepanning at different heights is carried out on the cross section of the wood arched beam, so that weakening of trepanning on the wood cross section is reduced; steel limiters are welded to the ends of the steel bar beams to ensure that the steel bars are located in the centers of the steel bar planting holes, and uniform flowing of steel bar planting glue in the hole channels is kept while the steel bar planting hole channels are not blocked.

The invention relates to a carbon fiber cloth building reinforcing device which comprises a feeding assembly, a traction rolling assembly, an overturning side pressing assembly and a butt joint assembly, and the feeding assembly is arranged on the left side of the traction rolling assembly and used for sending out carbon fiber cloth and cutting the carbon fiber cloth; the traction rolling assembly is used for actively clamping or releasing the carbon fiber cloth, and the carbon fiber cloth can be tightly pressed and covered on the bottom surface of the cross beam after the carbon fiber cloth is released; a turnover rail of the turnover side pressing assembly can be in butt joint with the transverse moving guide rail to form a transverse conveying rail and is in butt joint with the upper end of the vertical moving guide rail to form a vertical side pressing rail after being turned over, and the butt joint clamping assembly is arranged at the right end of the right turnover guide rail and used for receiving and clamping or releasing the carbon fiber cloth pulled out of the moving base. The device is an automatic device integrating feeding, traction and overturning compaction functions, traditional manual paving is replaced, the construction efficiency is greatly improved, the labor intensity is reduced, the compaction quality is stable and reliable, and the device is suitable for rapid reinforcement of a large-span building structure.

The invention belongs to the technical field of concrete crack repair, and particularly relates to microorganism-immobilized modified diatomite repair liquid as well as a preparation method and application thereof. The preparation method comprises the following specific preparation steps: roasting diatomite at a high temperature of 300-600 DEG C, and then cooling to room temperature; soaking the diatomite subjected to high-temperature roasting into an acid solution for modification; mixing the diatomite subjected to acid soaking modification with the obtained microbial solution; the microorganism-immobilized modified diatomite is obtained. And adding an admixture with biocompatibility into the microorganism-immobilized modified diatomite, so that the microorganism-immobilized modified diatomite is converted into a non-Newtonian fluid from a Newtonian fluid, thereby obtaining the microorganism-immobilized modified diatomite repair liquid. The rheological behavior of the composite system is controlled by introducing an admixture with biocompatibility, and the technical bottlenecks of insufficient carrier loading capacity, serious thallus erosion loss, uneven mineralization deposition and the like in the traditional process are effectively solved.

The invention relates to the technical field of grouting construction equipment, in particular to a basement waterproof construction device which comprises a grouting machine body, a grouting pipe is connected to the grouting machine body, a beef tallow head is connected to one end of the grouting pipe, the basement waterproof construction device further comprises a grouting nail, the grouting nail is inserted into a wall, one end of the grouting nail is provided with a hinge head and a clamping groove, and the hinge head is connected with the clamping groove. A clamping jaw sleeve is axially, elastically and slidably arranged on the beef tallow head and used for clamping the clamping groove, a plurality of elastic clamping pieces in the beef tallow head clamp the hinged head, and by arranging a double-clamping structure that the elastic clamping pieces clamp the hinged head and the clamping jaw sleeve clamps the clamping groove, the grouting nail and the beef tallow head form two connecting points. Connection inclination caused by the dead weight of the grouting pipe is avoided, the connection strength is remarkably enhanced, meanwhile, the vibration influence of the grouting machine during working can be counteracted through the cooperation of double clamping and the buffering effect of the elastic piece, shaking or loosening of the connecting position is reduced, the grout leakage risk is reduced, and the sealing effect is guaranteed.