39results about How to "Save the amount of concrete" patented technology

The invention discloses a corrugated steel web prestressed concrete continuous box girder. In the box girder, after being fixedly connected with a corresponding steel bar in a cast-in-place member, transverse steel bars of a precast concrete top plate, a precast concrete bottom plate and a precast concrete beam or a precast concrete diaphragm plate of two adjacent corrugated steel web prestressed concrete flanged beam units which are erected are connected by a cast-in-place concrete top plate between the adjacent precast concrete top plates, a cast-in-place concrete bottom plate between the adjacent precast concrete bottom plates and a cast-in-place concrete beam or a cast-in-place concrete diaphragm plate between the adjacent precast concrete beams or precast concrete diaphragm plates to form closed box girders; and external prestressed bars in the closed box girders are pulled and anchored, the closed girders corresponding to two adjacent holes are connected by pouring cast-in-place concrete longitudinal beams, hogging moment prestressed bars on pillar tops are pulled and anchored, and temporary supports are removed to form the continuous box girder. The corrugated steel web prestressed concrete continuous box girder has the characteristics of high stressed performance, high utilization rate of materials and obvious economic benefit, and is easy and convenient to construct.

The method includes following steps: (1) prefabricating big and thin wall pipe piles; (2) according to designed reinforcing requirement, punching or pressing the said prefabricated pipe piles into base of foundation in soft clay by using construction machinery; (3) setting mattress layer on top of pipe piles to assort with distortion and stress of pile ground. Advantages are convenient construction, low cost, fast, adjusting distortion of pile ground so as to ensure piling quality and suit reinforcing base of foundation in soft clay.

The invention discloses an ultra-large-diameter pile foundation assembly type wharf structure. The structure is composed of an ultra-large-diameter pile, a T-shaped pile cap, a rubber blanket, a slurry sealing steel plate, grouting material and a wharf upper structure; the lower end of the ultra-large-diameter pile is arranged below a mud surface, the upper end of the ultra-large-diameter pile is welded with the slurry sealing steel plate, the rubber blanket is pasted on the slurry sealing steel plate, the T-shaped pile cap is inserted into the upper end of the ultra-large-diameter pile, and the grouting material fills the gap among the T-shaped pile cap, the ultra-large-diameter pile, the rubber blanket and the slurry sealing steel plate to enable the T-shaped pile cap and the ultra-large-diameter pile to be integrated; the upper part of the T-shaped pile cap is connected to the wharf upper structure through cast-in-place nodes; and the wall thickness of the ultra-large-diameter pile is 3.5-7cm and the diameter of the ultra-large-diameter pile is 4-7m. The invention further discloses a construction method of the ultra-large-diameter pile foundation assembly type wharf structure. The structure and the method have the advantages that open sea construction does not need a pile clamping procedure during a construction period, the amount of concrete poured on site is small, the node connection speed is high, the assembly degree is high, and the number of open sea operators and the protection measure cost are reduced.

The invention discloses an assembled type flexible half-excavation foundation for electric transmission lines in mountainous areas. The assembled type flexible half-excavation foundation comprises an upper slab, a base and an anchor cable used for connecting the upper slab and the base. The base is formed by splicing a plurality of prefabricated slabs and is in a circular truncated cone shape. The upper top face of the base is fixedly connected with a lower anchor slab through bolts. A steel cushion plate is arranged at the top of the upper slab. The center of the lower anchor slab and the center of the upper slab are each provided with a through hole used for allowing the anchor cable to penetrate through. The bottom end of the anchor cable is connected with the base through the lower anchor slab. The top end of the anchor cable is fixed to the upper slab through the steel cushion plate. An annular baffle is arranged on the lower surface of the upper slab. The circle center of the annular baffle is identical to the center of the upper slab. According to the assembled type flexible half-excavation foundation of the structure, the lower spliced type circular-truncated-cone-shaped base is embedded under undisturbed soil, by means of the structure, the uplift performance of the undisturbed soil can be brought into full play, and the uplift bearing capacity of the foundation is substantially improved; meanwhile, through the arrangement of the annular baffle on the lower surface of the upper slab, the horizontal load resistance of the foundation is improved.

The invention relates to an overall-prefabricated main transformer foundation and oil pit structure used for an indoor substation. The overall-prefabricated main transformer foundation and oil pit structure comprises a cast building raft foundation. Matrix-arranged foundation bolts are pre-embedded in the position, where a main transformer is arranged, on the building raft foundation; foundation piles are arranged on the foundation bolts, and the tops of the foundation piles are connected with crossbeams; the column tops of the foundation piles are provided with rail beams in the length direction of the building raft foundation, and the rail beams and the crossbeams are perpendicularly arranged; oil pit wall clamping grooves are pre-formed in the position, around the main transformer, of the building raft foundation; and oil pit walls are placed in the clamping grooves, and the tops of the oil pit walls are connected with the crossbeams and the rail beams. An overall splicing technology of the main transformer foundation is adopted, and the defects of cast-in-place construction of a traditional main transformer foundation are overcome; the construction period of a main transformerfoundation item project can be shortened greatly, the construction efficiency is improved, and a frame system is good in structural stability and high in bearing capacity; and the oil pit oil-leakageprobability is decreased greatly by adopting a novel prefabricated wallboard splicing technology.

A foundation system for a tower, such as a wind turbine, includes a central hub assembly, a plurality of post-tensioned concrete beams, and an anchoring system associated with each beam. In use, the foundation system is arranged so that the bottom surfaces of the concrete beams bear on soil and the anchoring system is disposed within the soil. The beams can be inverted bulb-T beams having post-tensioning cables inserted there-through and cooperating with an oppositely disposed related beam. The central hub assembly can include a plurality of stacked disk elements or steel frame elements that are post-tensioned together to form a single hub structure.

The invention discloses an anchor rod base structure with a concrete block of a photovoltaic module bracket and a setting method. The structure comprises a base arranged above the ground, a photovoltaic bracket is arranged on the base and the base comprises an anchor rod inserted into the ground, wherein the connection position between the top of the anchor rod and the ground is sleeved with a concrete block at the outer side. A novel steel anchor rod base with the concrete block is disclosed, suitable for most of the geology, capable of replacing the spiral steel pile base with potential safety hazard in the loose soil layer and is characterized in more reasonable in stress, better in security, wide in range of application and better in economy; the investment for building the photovoltaic power station on the ground is saved, the security is increased and the durability is strengthened.

The invention discloses a concrete rotary stirring and mixing device for building construction, and relates to the technical field of concrete stirring. The concrete rotary stirring and mixing devicecomprises a fixing frame, wherein a rotating plate is rotatably mounted on the fixing frame, a plurality of rotatably arranged stirring barrels are annularly and uniformly mounted on the rotating plate, and a vertical rack is vertically fixed on the fixing frame. According to the concrete rotary stirring and mixing device, the rotating plate is driven by an arranged stepping driving mechanism to rotate in a stepping manner, at the moment, the stirring barrels on the rotating plate can rotate to vertically correspond to a stirring mechanism after being adjusted, the arranged stirring mechanismrotates in the lifting process of a lifting frame and meanwhile performs sufficient rotary stirring on concrete in the stirring barrels, and an arranged bottom scraping plate can ascend and descend vertically in the adjusting process to make the concrete shake up and down, so that the concrete stirring sufficiency can be effectively improved. The device allows the concrete to be separately placedin the multiple stirring barrels and realizes one-by-one stirring of the concrete in the stirring barrels, so that the stirring process is more sufficient and efficient.

The invention belongs to the technical field of grain storage buildings, and particularly relates to a full-automatic waterproof mountain-near granary for storing bulk grains. A granary body of the full-automatic waterproof mountain-near granary comprises a mountain-near granary body and an empty-near granary body. The mountain-near granary body comprises multiple mountain-near stand columns. A mountain-near wall is installed between the neighboring mountain-near stand columns. The mountain-near wall comprises an outer side wall and an inner side wall. The outer wall of the outer side wall isprovided with a waterproof layer. A preset cavity is installed between the inner side wall and the outer side wall. Multiple separating plates are installed in the cavity. The mountain-near stand columns are internally provided with water flow channels. A gradient of the water flow channels is the same as that of the separating plates. The lowest points of two ports of the water flow channel are aligned to the upper end face of the neighboring separating plate. Multiple rows of drainage ditches are formed between the multiple separating plates and the multiple water flow channels. At least oneport of the drainage ditches is positioned at the empty-near side. The drainage ditch is a structure of which one end is high and the other end is low or the middle is high and two ends are low. Thefull-automatic waterproof mountain-near granary is capable of, through installing structures of the double-layer mountain-near wall, the separating plates, the water flow channels and the like, enabling the granary to be suitable for building in a mountainous area, and has the good waterproof and drainage effects.

The invention relates to a whirlwind tank, comprising a bottom plate (1), an oblique cone (2), an outer barrel (3), an inner barrel (4) and a support (5), wherein the support (5) is an oblique support. The whirlwind tank causes grab bucket working performance to be high, and floating resistant capability of the whirlwind tank is strong.

The invention discloses a prestress reinforced concrete dish plate in the technical field of construction materials, comprising a double-parabolic plate and a faceplate, wherein edges of both sides of the double-parabolic plate are connected with the faceplate into a whole, and both sides of the faceplate are wider than both sides of the double-parabolic plate so as to form flange girthes on both sides. In order to further reduce the consumption amount of concrete and to increase the bearing capacity, the midspan parts of the edges of both sides of the double-parabolic plate are connected with the upper surface of the faceplate, and the end-span parts at both ends of the edges of both sides of the double-parabolic plate are connected with the lower surface of the faceplate. The prestress reinforced concrete dish plate has efficient bending resistance and saves steel; under the circumstance of maintaining the bearing capacity, the consumption amount of the concrete is reduced, the self-weight of constructional members is reduced, and the cost is saved; and after the expansion and the stretch of prestress steel, the midspan is slightly arched. The prestress reinforced concrete dish plate can be used for the floor engineering of a multi-storey workshop of a factory building with larger span, and can also replace overhead simple-supported box girders of overhead high-speed railways with large broad width and inter-city light rails.

The invention discloses a retaining wall construction device. The retaining wall construction device comprises retaining support formworks, grout pouring pipes, a stone material and concrete grout. The retaining wall construction device has the advantage of high construction speed compared with artificial-piling retaining wall construction and has the advantage of concrete saving compared with rubble-concrete retaining wall construction.

The invention provides a ceiling structure with a bottom-mounted concentric square radiation pipe and a construction method of the ceiling structure. The ceiling structure with the bottom-mounted concentric square radiation pipe comprises a steel bar layer (1), the radiation pipe (2) and a concrete layer (3), wherein the radiation pipe (2) is positioned at the lower side of the steel bar layer (1); the concrete layer (3) covers the outside of the steel bar layer (1) and the outside of the radiation pipe (2); and the radiation pipe (2) is of a concentric square structure. The ceiling structure with the bottom-mounted concentric square radiation pipe according to the invention has the advantages of simple structure, low repair difficulty, high heat transfer efficiency and low cost.

The invention provides a horizontal anchorage structure of a suspension bridge and a construction method. The horizontal anchorage structure comprises a construction hole dug from the back side of a mountain in a bridge location area of the suspension bridge, a rear anchor chamber, an anchor plug body chamber and a front anchor chamber, wherein the rear anchor chamber, the anchor plug body chamberand the front anchor chamber are formed by sequentially and horizontally constructing from the construction hole to the side of the suspension bridge, and reinforced concrete is poured into the anchor plug body chamber from the front anchor chamber to the side of the suspension bridge to form an anchor plug body; a cable scattering saddle is installed in the front anchor chamber, and a cable rotating saddle is arranged in the main cable hole; the main cable is led into the main cable hole, is steered horizontally through the cable rotating saddle and penetrates through the main cable flat hole to reach the cable scattering saddle; and the main cable is connected with an anchor cable anchored on the anchor plug body after being scattered into cable strands through the cable scattering saddle. Compared with an inclined tunnel anchor and a composite anchorage, the rock mass bearing range is enlarged, the anchorage bearing capacity is high, mutual adverse effects of anchorage tunnels canbe avoided, the anchorage stability and safety are improved, the construction difficulty is reduced, the engineering investment is reduced, and operation and maintenance are convenient.

The invention discloses construction equipment for retaining walls, which comprises two supporting and retaining formworks and a plurality of grouting pipes; the two supporting and retaining formworks are fixed at both sides of a retaining wall along the extension direction of the retaining wall to be constructed; the grouting pipes are fixed between the two supporting and retaining formworks along the extension direction of the retaining wall; the grouting pipes are hollow pipes, and the wall of each grouting pipe is provided with a plurality of grout outlets. The construction equipment for retaining walls provided by the invention has the advantage of high construction speed in comparison with artificial pilling type retaining wall construction, and has the advantage of concrete saving in comparison with rubble concrete retaining wall construction.

The invention discloses a prefabricated type concrete stair mould and a stair manufacturing method. The mould comprises a back board molding board and a step surface molding board which are detachably connected; the molding boards are combined into a cavity for pouring prefabricated concrete stairs, and are equipped with side openings for pouring concrete; the mould further comprisesa supporting base; the molding boards are rotatably connected on the supporting base; and each molding board has a horizontal state and a perpendicular state for forming an upward opening after being turned over around a rotary connecting part. The manufacturing method comprises the following steps of: suspending a reinforcing mesh cage, assembling a step surface molding board, turning the mould into a perpendicular state, pouring concrete, turning the mould into a horizontal state, disassembling the step surface molding board and the like. According to the mould and a construction method thereof, prefabricated concrete stairs do not needed to be turned over while the horizontal type stair mould is disassembled, damages caused by product turning over are avoided, most important features and least light receiving surface requirements of vertical type stairs are met, forming appearance is good, and product quality is guaranteed.

The invention discloses a construction device for a retaining wall. The construction device comprises supporting and retaining formworks, a grouting pipe, stone and concrete grout. Compared with manually piled retaining wall construction, the construction device has the advantage of being fast in construction speed, and compared with rubble concrete retaining wall construction, the construction device has the advantage that concrete is saved.

The invention discloses a basement floor structure. The basement floor structure is characterized in that prestressed pipes are arranged in basement floors, steel support plates are arranged in the prestressed pipes, linoleum is laid on the steel support plates, the linoleum extends out of the top surface of the basement floors, and the extending length is 250-300mm. Waterproof concrete is arranged on the linoleum, small holes are formed in the pipe walls of the prestressed pipes, leather pouches are arranged in the basement floors, positioning steel bars are arranged above the leather pouches, the diameter of the positioning steel bars is 16mm, the leather pouches are arranged at the middle position of the basement floors in the height direction of the basement floors, and the transversespacing is 0.6-0.8m. Steel bar horse stools are arranged under the leather pouches and waterproof mortar is arranged on the basement floors.

The invention provides a ceiling structure with double underneath type parallel radiant tubes and a construction method of the ceiling structure. The ceiling structure with the double underneath type parallel radiant tubes comprises an integral pouring molded reinforcement layer (1), the radiant tubes (2) and a concrete layer (3); the radiant tubes (2) are positioned on the lower side of the reinforcement layer (1); the concrete layer (3) wraps the reinforcement layer (1); and the radiant tubes (2) are distributed to form a double parallel type structure. The ceiling structure with the double underneath type parallel radiant tubes is simple in structure, low in repairing difficulty, high in heat transfer efficiency and low in cost.

The invention discloses a mixed grooved inserted combined prefabricated special-shaped section composite foundation structure and a construction method, and belongs to the field of foundations. The structure includes a plurality of mixing piles, and each mixing pile is embedded into the foundation in a circular pile shape; all mixing piles are arranged on a ground plane in an H shape, every adjacent mixing piles are mutually interlocked and connected, and a continuous wall type H-shaped mixing tank is formed; a prefabricated plate is inserted vertically in each mixing pile, and the prefabricated plates in all mixing piles are continuously spliced in the direction of the H-shaped mixing tank; and in each mixing pile, the position between the two sides of the prefabricated plates and foundation soil at the edges of the mixing piles is filled with cement soil as a transition layer. According to the mixed grooved inserted combined prefabricated special-shaped section composite foundation structure and the construction method, the principle is simple and reliable, construction operation is easy and convenient, applicable working conditions are wide, and the influence by site construction conditions is small; and according to a composite foundation, compared with conventional foundations, under the condition of using concrete mortar with the same volume, the bearing capacity is greatly improved, and the good application prospects are achieved.

The invention discloses a structural panel containing bamboo strips and a design method thereof. The structural panel is a flat body with not less than two surfaces and several connecting surfaces, which can withstand external forces, and a concrete structure containing bamboo strips. It is characterized in that the bamboo strips include round bamboo sections, and the round bamboo sections and strips form a grid-like skeleton; the round bamboo sections do not expose the surface of the structural plate; the structural plate is a structural floor or a structural wall plate. The round bamboo section of the present invention is formed by cutting off the complete bamboo tube according to the required length, retains the complete bamboo structural performance, and can fully utilize the performance of the bamboo.

The invention discloses hydraulic equipment. The hydraulic equipment comprises a frame body; a port connected with stirring equipment is fixedly mounted at the upper end of the frame body; a transfer groove is formed in the frame body; a first transfer machine is mounted in the transfer groove; a drainage groove for extending up and down is formed in the frame body; a rotating cavity is formed in the frame body; a discharge port is formed in the bottom wall of the rotating cavity; a rotating frame is rotationally mounted in the rotating cavity; the rotating frame comprises rotating shafts rotationally mounted in the front and back end walls of the rotating cavity, and rotating plates uniformly and fixedly mounted on the rotating shafts; an extension groove is formed in the left end wall of the frame body; a guide groove for extending up and down is formed in the top wall of the rotating cavity; a through groove is formed in the bottom wall of the guide groove; a guide block is mounted in the guide groove in a up-down sliding manner; a touch rod is fixedly mounted at the lower end of the guide block; and the touch rod penetrates through the through cavity to enter the rotating cavity. The hydraulic equipment is simple in structure and low in equipment cost.

The invention discloses a bamboo-strip-containing structural slab and a designing method thereof. The bamboo-strip-containing structural slab is of a concrete structure which comprises a flat body having at least two surfaces and a plurality of connecting bonding surfaces and capable of bearing external force and contains bamboo strips, and the bamboo-strip-containing structural slab is characterized in that each bamboo strip comprises round bamboo sections, and a grid-shaped framework is composed of the round bamboo sections and strip-shaped substances; the round bamboo sections are not exposed out of the surface of the structural slab; the structural slab is a structural floor slab or a structural wall slab. According to the bamboo-strip-containing structural slab and the designing method thereof, completely-preserved bamboo pipes are cut according to required lengths to form the round bamboo sections, complete bamboo-structure performance is preserved, and the bamboo performance canbe fully used.

The invention discloses novel hydraulic equipment. The novel hydraulic equipment comprises a frame body; a port connected with stirring equipment is fixedly mounted at the upper end of the frame body; a transfer groove is formed in the frame body; a first transfer machine is mounted in the transfer groove; a discharge groove lengthened up and down is formed in the frame body; a rotating cavity is formed in the frame body; a discharge port is formed in the bottom wall of the rotating cavity; a rotating frame is rotationally mounted in the rotating cavity; the rotating frame comprises rotating shafts rotationally mounted in the front and back end walls of the rotating cavity, and rotating plates uniformly and fixedly mounted on the rotating shafts; an extension groove is formed in the left end wall of the frame body; a guide groove lengthened up and down is formed in the top wall of the rotating cavity; a through groove is formed in the bottom wall of the guide groove; a guide block is mounted in the guide groove in a up-down sliding manner; a touch rod is fixedly mounted at the lower end of the guide block; and the touch rod penetrates through the through groove to insert in the rotating cavity. The novel hydraulic equipment is simple in structure and low in equipment cost.

The invention discloses novel hydraulic equipment. The novel hydraulic equipment comprises a frame body; a port connected with stirring equipment is fixedly mounted at the upper end of the frame body; a transfer groove is formed in the frame body; a first transfer machine is mounted in the transfer groove; a discharge groove lengthened up and down is formed in the frame body; a rotating cavity is formed in the frame body; a discharge port is formed in the bottom wall of the rotating cavity; a rotating frame is rotationally mounted in the rotating cavity; the rotating frame comprises rotating shafts rotationally mounted in the front and back end walls of the rotating cavity, and rotating plates uniformly and fixedly mounted on the rotating shafts; an extension groove is formed in the left end wall of the frame body; a guide groove lengthened up and down is formed in the top wall of the rotating cavity; a through groove is formed in the bottom wall of the guide groove; a guide block is mounted in the guide groove in a up-down sliding manner; a touch rod is fixedly mounted at the lower end of the guide block; and the touch rod penetrates through the through groove to insert in the rotating cavity. The novel hydraulic equipment is simple in structure and low in equipment cost.