38results about How to "Reduce self-weight load" patented technology

The invention belongs to the field of building materials, in particular to a paying method of a steel box girder bridge deck payment layer. The paying method of the steel box girder bridge deck payment layer is characterized by comprising the following steps: (1) bridge deck pre-cleaning; (2) welding of shearing rivets; (3) binding of reinforcing mats; (4) payment of a high-toughness high-strengthlight aggregation concrete layer: paying high-toughness high-strength light aggregation concrete on steel plates of a steel box girder bridge deck and forming the high-toughness high-strength light aggregation concrete layer, wherein the high-toughness high-strength light aggregation concrete is higher than the shearing rivets by 1-2 cm and the thickness of the high-toughness high-strength lightaggregation concrete is 5-8 cm; (5) payment of a waterproof bonding stress absorbing layer, wherein the thickness of the waterproof bonding stress absorbing layer is 1-2 cm; and (6) payment of a payment layer for resisting slipping, reducing noise and draining: preparing the payment layer for resisting slipping, reducing noise and draining, wherein the thickness of the pavement layer is 3-5 cm. The payment layer has the characteristics of stress absorption, lightness and excellent slipping resistance.

The invention relates to a novel multi-purpose fireproof composite heat-insulation plate comprising a fireproof composite heat-insulation plate body, a fastener and a heat storage substrate plate or a surface-layer veneer plate, wherein the fireproof composite heat-insulation plate body sequentially is formed by sequentially compounding a protective layer, a composite heat-insulation plate or a heat-insulation plate and a fireproof antiflaming reflecting layer or a reflecting layer from bottom to top; an underfloor heating pipe groove is arranged at the upper end of the composite heat-insulation plate or the heat-insulation plate; and the heat storage substrate plate or the surface-layer veneer plate and a supporting base in the composite heat-insulation plate are anchored on the fireproof composite heat-insulation plate body and an underfloor heating pipeline by using the fastener and a bolt or using the bolt directly. The novel multi-purpose fireproof composite heat-insulation plate is suitable for dry-type or wet-method low-temperature radiation heating of floors of various structural forms including steel structures and the like and inner and outer walls and roof heat insulation, improves the fireproof property of the composite heat-insulation plate, ensures that the composite heat-insulation plate can meet the new fireproof requirement and ensures the fire safety of building heat-insulation materials, and has the advantages of simplicity and convenience for installation, lower cost, economy and practicability, broad application and better decoration effect.

The invention relates to a foamed concrete building block made of waste residues of ceramics and a method for manufacturing the foamed concrete building block. The foamed concrete building block is manufactured by the following steps of: uniformly stirring waste residues of ceramics, waste polystyrene foam, Portland cement, calcium oxide, calcium sulphate, bentonite, a polycarboxylate high-efficiency water reducing agent, sodium cellulose glycolate, aluminum sulphate, sodium chloride and water, which serve as raw materials, by using a twin-shaft mixer, and mixing the mixture with tea saponin and saponin powder to form foam; under the full-automatic control of a computer, conveying the mixture to a high-speed mixed foam pulping mixer by using a spiral tube conveyor, uniformly stirring the mixture to obtain pasted foam pulp; and transmitting the foam pulp to a mold, moulding the foam pulp to obtain a concrete building block mould, reshaping, and transmitting the shaped mould to a curing room for solidifying; and demolding, performing automatic stacking, packaging, and storing the packaged concrete building block in a storage yard. The product has the advantages of light weight, high strength, environment friendliness, low cost and high benefits and is in line with the national rules and regulations about energy conservation and emission reduction, development of low-carbon economy and environmental protection.

The expansion joint regulator member consists of expansion back and cast expansion beams on sides of the expansion back. The expansion beams are equal in length and parallel, and the expansion back has its top and bottom planes coinciding with the top and bottom planes of the expansion beams. The expansion joint regulator consists of two identical members inserted mutually. The member is formed through once casting. The expansion joint regulator with two identical members inserted mutually can avoid resonance caused by the impact of the running vehicles, and prolong the service life of bridge and other buildings.

The invention discloses an embankment structure for reducing the generation rate of bump at a bridge head and a filling method. The embankment structure comprises an under layer, a stone layer, a bump-preventing layer and a buffer layer, which are sequentially arranged, wherein the bump-preventing layer comprises a plurality of bump-preventing units and fillers filled in the peripheries of the bump-preventing units and between the adjacent bump-preventing units; each bump-preventing unit comprises a pored pipe body of which the periphery is coated with geotechnical cloth, a geogrid for connecting a defined amount of pored pipe bodies together, and fillers filled in the peripheries of the pored pipe bodies. The filling method comprises the following steps: cleaning a field; laying the under layer of an embankment; laying a filler layer, and laying the geogrid on the filler layer; placing the pored pipe bodies coated with the geotechnical cloth on the geogrid; winding the geogrid on the defined amount of pored pipe bodies according to a certain spacing; repeating the step 5 for multiple times, and then filling soil and stone to be used as the buffer layer; and compacting. The embankment structure has the advantages of simplicity and convenience in construction, low cost, high economic benefit, good drainage condition, environmental friendliness, conservation and the like.

The invention relates to a foam concrete block produced with waste ash and a manufacturing method thereof. The manufacturing method is characterized in that waste ash, waste polystyrene foam, portland cement, calcium oxide, calcium sulfate, bentonite, polycarboxylate superplasticizer, sodium carboxymethyl cellulose, sodium lauryl sulfate, aluminum sulfate, sodium chloride, borax and water are used as raw materials, the raw materials are uniformly mixed by a double-shaft mixer into mixture, foam is prepared through mixing the mixture with sodium dodecyl benzene sulfonate and polyacrylamide, a computer is used for fully automatic control, the mixture is fed by a spiral tube conveyor into a high-speed mixing and soaking slurry-producing mixer and is mixed well into paste type foam slurry, the slurry is poured into a die, shaped and then delivered into a curing room for curing, the cured product is fed into a stripping machine for stripping, stacking, packaging and storage on a yard are performed after stripping, and thus the foam concrete block product made of the waste ash is prepared. The product has the advantages and effects of light weight, heat preservation, thermal insulation, sound insulation, capabilities of being nailed, sawn and processed into different specifications, high strength, no pollution, low cost and good profits, and complies with national requirements for energy conservation, emission reduction, development of the low-carbon economy and environmental protection.

The invention particularly relates to a protection and treatment method for a tunnel top karst cave. The protection and treatment method includes the steps that (a) an oversized spring type steel reinforcement framework molded through winding is filled with plastic foams; (b) steel arches are distributed under the exposed karst cave in the tunnel cross section mode; (c) the foam spring type steel reinforcement framework which is well fixed is erected to be lifted into a cavity, oversized springs are arranged in a quincunx shape and are fixedly connected with the steel arches in the step (b); (d) fake tops are constructed with the steel arches as inner liners; (f) grouting holes are formed in the fake tops, luokexiu foams are injected into the cavity through the grouting holes, steel reinforcement foams previously placed into the cavity are bonded and reinforced, and original gaps are packed. The protection and treatment method is suitable for treatment of the tunnel underneath pass karst cave; harms of disasters such as stone falling and karstic water in the karst cave on the tunnel construction period and the operation period can be prevented, and the method has the advantages of being high in reliability, easy and convenient to construct, low in construction cost, favorable for stabilization of the overall structure of the karst cave, suitable for the large karst cave, better in treatment effect and the like.

The invention discloses a modular assembly type pile foundation wharf structure system. The system comprises pile foundations (1), modular upper structure portions (2) and pile foundation and modular upper structure portion connection joints (3). According to the technical scheme, the wharf total plane dimension: N*L(length)*B(width)m is directly divided to be the N upper structure portions (2), the N upper structure portions (2) are prefabricated and machined in a factory at first and then conveyed through a waterway to a site, and then general assembly and in-place installation are carried out. The invention discloses a construction method of the modular assembly type pile foundation wharf structure system. A large number of overwater special dangerous construction working procedures can be avoided, the number of on-site staff is reduced, the construction period is shortened, and the building efficiency is remarkably improved.

The invention provides a prefabricated foundation component for an assembled elevator and a construction method thereof. The prefabricated foundation component comprises a raft foundation body, a concrete shear wall and steel columns, and the raft foundation body, the concrete shear wall and the steel columns are overall poured together; the concrete shear wall and the steel columns are both perpendicular to the raft foundation body, the steel columns are arranged at the four corners of the raft foundation body, and the concrete shear wall and the steel columns are integrally formed; and the outer side edge of the raft foundation body is provided with a detachable reserved reinforcement bar layer used for conducting secondary pouring on the installation site. According to the prefabricatedfoundation component, transporting, hoisting and installing are convenient, and the size of a raft foundation is flexibly variable so as to adapt to different terrain.

The invention belongs to the field of research and development of high performance and high durability of universal materials in the field of novel materials, and particularly relates to an organic rear earth polymer ultraviolet crosslinked exposed waterproof roll and a preparation method thereof. According to the technical scheme, the organic rear earth polymer ultraviolet crosslinked exposed waterproof roll is prepared from the following materials: blended polymers, a compound lead salt stabilizer, a plasticizer, a softener, a filling pigment, an organic rare earth polymer, a crosslinking activator, an ultraviolet initiator and an initiating promoter. Molecular crosslinking is carried out by virtue of external natural ultraviolet rays in the field by using an ultraviolet and rare earth compound crosslinking system, so that the molecular conformation is changed and an ultraviolet-tolerant mechanism is formed so as to obtain a colored waterproof roll which can be exposed to use, and therefore the roll becomes a feasible technical case of high durability of the universal material.

The invention discloses a combined filling mold. The mold is enclosed by a thin wall plate type member, wherein the thin wall plate type member comprises a panel (1), a stiffening plate (2), a counter force plate (3) or a counter force key (4); the periphery of the panel (1) is connected with the stiffening plate (2); the periphery of the stiffening plate (2) is connected with the counter force plate (3) or the counter force key (4); and at least one connecting hole (5) is formed in the counter force key (4). Novel filling mold combination members which are assembled on site and are connected with one another are convenient for industrial mass production, contribute to improvement on production efficiency and reduction in production cost and contribute to sufficient quantity transportation and reduction in transportation cost; because of light weight, the mold can be conveniently assembled, disassembled and mounted manually and contributes to reduction in construction and mounting cost; and due to the adoption of a combined structure, requirements on product diversification are convenient to meet, the defects of the conventional various filling molds are overcome, and the mold has low cost and is easy to operate.

The invention relates to an external elevator assembled prefabricated fundamental component of an existing building and a construction method thereof, and belongs to the technical field of existing building comprehensive improving. The external elevator assembled prefabricated fundamental component comprises external elevator prefabricated fundamental components and external elevator steel columnbottoms. Each elevator prefabricated fundamental component is formed by integrally pouring a raft foundation, concrete shear walls, steel columns, studs and embedded bolts, and the integrally-poured prefabricated fundamental component is installed on a pad layer at a ladder which is prepared in advance after being hoisted. The external elevator assembled prefabricated fundamental component of theexisting building and the construction method thereof have the obvious advantages that the construction period is short, the construction speed is increased, thus the building cost is lowered, duringconstruction, the daily life of an original resident is not influenced, and an elevator is freely and flexibly installed. Steel structures are adopted by the upper portion of the structure and are conveniently connected with the prefabricated fundamental components, the dead load is small, and the foundation is simple. As the existing building is improved and the people-centered idea is graduallyimplemented, it can be foreseen that on the premise of satisfying the construction quality, if the technology is applied and popularized, the existing building is additionally provided with an elevator and is matched with the reliable prefabricated foundation components, which has obvious economic benefit and practical significance.

The invention provides a BIM (Building Information Modeling)-based parameterized building facade design method, a facade component and a skin model. According to the design method, Rhino and Grasshopper software are applied on the basis of BIM, and a pixelated grid 2D normal projection 3D curved surface space grating geometric subdivision method is adopted; the method specifically comprises the six steps of extracting pixel grid points and 2D grid intersecting lines, constructing a building facade texture of an overall space body block, reconstructing a body block model of the overall space body block, further reconstructing a deepening model of the overall space body block, reconstructing a parameterized facade texture skin component and reconstructing a building skin model. The facade component is obtained through the design method and comprises a component body, the component body is formed by assembling a pair of triangular prism-shaped grids and a connecting piece arranged between the pair of triangular prism-shaped grids, the connecting piece comprises a cushion block and a connecting shaft embedded in a through hole in the cushion block, and the cushion block is embedded between the pair of triangular prism-shaped grids; sealing plates are arranged at the upper and lower ends of the component body. The method can guide the mass production of novel building industrialization.

The invention belongs to the technical field of roadbed repair, and discloses a roadbed subsidence repairing device and method. The repairing device comprises a steel arch, mini piles, a concrete abutment body, a steel shim, filled concrete and grouting pipes. The load of a roadbed subsidence section can be transmitted to a non-subsidence roadbed area with larger strength, the non-subsidence roadbed area surrounds the roadbed subsidence section, and the non-subsidence roadbed area does not subside; a certain compaction function to a weak roadbed can be achieved through high-pressure grouting, the deformation resistance of the roadbed is improved through filling of gaps and cracks of the surface layer of the weak roadbed, and the further subsidence of the weak roadbed can be effectively controlled. Meanwhile, the situation that surface rainfall is immersed in a roadbed channel is interdicted through filling of the concrete and the grouting body, and the roadbed is prevented from being immersed in water, softened and disengaged again. The roadbed subsidence repairing device and method have the advantages that the subsidence treatment of the roadbed is achieved, the technology is simple, the quality can be controlled, the construction progress is fast, the roadbed subsidence problem caused by reduction of the strength of the roadbed is basically eliminated, and the service life of the highway road surface structure is prolonged.

The invention discloses light cement soil for deep foundation treatment and a preparation method thereof. Foam and cement slurry are mixed in a stirring manner by using a surfactant foaming agent forfoaming treatment to introduce the foam, so that the volume weight of the cement soil is reduced. Meanwhile, due to the increase of the pores, the compactness and strength of the cement soil are reduced; by adding silicon powder and metakaolin, the cementing performance of the cement curing agent is improved, so that the strength of the light cement soil is improved; the fluidity of the light cement soil is improved by adding polycarboxylic acid; the stability of foam is improved by adding the foam stabilizer, so that the product is prevented from defoaming under pressure when being applied todeep foundation treatment, the cement soil meets the requirements of strength, volume weight and fluidity in practical engineering, and the research and development of a light cement soil material are realized.

The invention discloses an assembly type rigid supporting protection foundation structure for buried pipelines, and belongs to the technical field of engineering foundations. The assembly type rigid supporting protection foundation structure comprises a foundation, and is characterized by comprising a plurality of supporting units, each supporting unit comprises a precast pile and a pipeline borne by the precast pile, pipeline ports of the two supporting units are in butt joint, each supporting unit further comprises at least one of a prefabricated arch ring and a prefabricated foundation beam, each prefabricated arch ring is supported by the foundation and covers the corresponding pipeline in a buckling mode, a gap is formed between the inner wall of each prefabricated arch ring and the outer wall of the corresponding pipeline, and each prefabricated foundation beam is supported by the precast pile and used for bearing the corresponding pipeline. According to the assembly type rigid supporting protection foundation structure for the buried pipelines, the stress condition of the pipelines can be improved through the foundation structure, the pipeline protection effect is good, durability is high, the construction cost is low, and the construction efficiency is high.

The invention discloses a novel welding robot. The novel welding robot comprises a workbench, two stand columns arranged on the side face of the workbench and symmetrically arranged in parallel, a cross beam arranged on the side faces of the top ends of the stand columns, a transverse moving mechanism arranged on the side face of the cross beam, a cantilever beam arranged at the movable end of thetransverse moving mechanism, a robot body arranged at the bottom of the cantilever beam and spirally fixed to the cantilever beam, a welding clamp arranged at the tail end of the robot body, a welding gun clamped and fixed through the welding clamp, and a hydraulic overturning clamping table arranged below the robot body. The novel welding robot has the technical effects that the transverse moving mechanism is matched with the robot body, so that the robot body can transversely move, the welding range is widened, large-size workpieces are welded, the welding freedom degree is improved throughthe synergistic effect of the robot body and the hydraulic overturning clamping table, and all-dimensional welding is achieved.

The invention provides an FRP sheet connecting structure of a prefabricated concrete beam and slab system and a method. Peripheral side surfaces of full-thickness prefabricated slabs are adjacent to side surfaces of floor beams; an about 20 mm wide adjusting seam is formed between each prefabricated slab and each floor beam and between the prefabricated slabs and is filled with high-strength micro-expansion mortar; planar FRP sheets for anti-bending connection are attached to the top surfaces of joints of the prefabricated slabs and the floor beams and the top surfaces and the bottom surfacesof joints of the prefabricated slabs; folding surface type FRP sheets for anti-shear connection are also attached to the joints of the prefabricated slabs and the floor beams and the joints of the prefabricated slabs; and the fiber direction of the FRP sheets is perpendicular to the longitudinal direction of the joints. The problems that side forms of prefabricated parts are complicated due to thefact that ribs extend out of the periphery of existing platy prefabricated parts, the production efficiency is low, transportation and hoisting operation are difficult and the like are solved; and the problem that substantial wet operation on the scene due to stacking pouring of existing prefabricated slabs and the problem of too large thickness of the slabs are solved.

The invention provides a prefabricated I-shaped shear wall-prefabricated floor slab system FRP sheet connecting structure. The structure comprises prefabricated foundations, shear walls, parapet walls, floor slabs and other objects; the shear walls comprise main walls with I-shaped sections and L-shaped, T-shaped, cross-shaped and other edge components, and no rebar is exposed around; the prefabricated floor slabs are rectangular plane slabs, and no rebar is exposed around; horizontal adjacent wall connecting FRP sheets are symmetrically pasted on the two sides of two adjacent shear walls in the same plane in the vertical direction of wall seams; adjacent slab joint FRP sheets are symmetrically pasted to the upper sides and the lower sides of two adjacent floor slabs in the longitudinal direction of slab joints; the vertical connection between the shear walls is achieved through flange bolts; and the floor slabs are placed on flanges of the shear walls and are connected through slab-wall connecting FRP sheets. According to the structure, the problems that an existing prefabricated shear wall structure is low in efficiency, poor in environmental benefit, not prone to guaranteeing the connecting performance and the like in the procedures of manufacturing, transporting, hoisting, connecting and the like can be solved.

The invention provides a photovoltaic thermoelectric power generation device of an unmanned aerial vehicle. The device comprises a solar power generation panel, and further comprises a photovoltaic thermoelectric power generation module. The photovoltaic thermoelectric power generation module is arranged on the outer surface of the unmanned aerial vehicle. The back surface of the solar power generation panel in the photovoltaic thermoelectric power generation module is directly or indirectly fixed with a hot end of a thermoelectric power generation chip. The thermoelectric power generation chip adopts a lightweight and modular design, so that the flight self-weight load of the unmanned aerial vehicle is reduced as much as possible. Meanwhile, the photovoltaic thermoelectric power generation module is used for carrying out solar photovoltaic power generation and thermoelectric power generation instead of simply generating power. After the charging process, the cruising ability of the unmanned aerial vehicle is continuously increased. The photovoltaic thermoelectric power generation module adopts a modular structure, so that the industrial production of components, assemblies and thelike is facilitated. Moreover, a plurality of modules can be adopted for combination, and the application range is expanded.

The invention discloses mixed slurry for foundation treatment engineering, and a preparation method of the mixed slurry, wherein the mixed slurry comprises 30-40 parts of lightweight cement, 20-30 parts of modified slag powder, 15-20 parts of wollastonite powder, 10-15 parts of sodium silicate, 10-15 parts of potassium silicate, 8-12 parts of an additive, 6-8 parts of sawdust and the balance of clear water. According to the invention, the lightweight cement can enable slurry to meet the requirements of density, strength and fluidity, the modified slag powder can improve the grinding property and miscibility of the slag powder and improve the pressure resistance of the slurry, the wollastonite powder can improve the acid and alkali resistance and strength of the slurry and improve the hygroscopicity of the slurry after application, and the mixture of sodium silicate and potassium silicate is used as a coagulant to shorten the setting time of the mixed slurry during use and enhance the compressive strength, so that the mixed slurry for foundation treatment engineering can meet the requirements on density, strength and flowability on the basis of reducing self-weight load, and the compressive strength of the slurry is improved. The preparation method has the same advantages.

The invention relates to a panel for thermal insulation room, which is characterized in that the steel wire mesh frame is used as the skeleton frame; a plurality of concrete layers (5) are fixedly connected with both sides of the steel wire mesh frame; an empty cavity is formed between the concrete layers (5); the thermal insulation material is filled in the empty cavity to form the insulation layer (8); the thermal insulation material must be tightly closed to the internal walls of the concrete layer on both sides; an alkali resistant glass fiber mesh cloth (9) is embedded in the outer side of the concrete layer (5). The construction method comprises four steps: making the skeleton frame of the steel wire mesh frame, preparing the concrete material, making the concrete layer and forming the insulation layer. The panel for thermal insulation room has the advantages of earthquake resistance, light weight, high strength, impermeability, endurance, sound insulation, fire resistance, energy conservation, thermal insulation and higher efficiency of construction, and is more particularly suitable for construction engineering.

The invention relates to the technical field of parking lots. The relay assembly type underground intelligent parking garage comprises a cylindrical supporting frame and a vertical shaft which is arranged in the center of the supporting frame and used for allowing a vehicle carrying platform to move. The supporting frame comprises an inner column group, an outer column group, a ring beam and a shelf; a plurality of layers of shelves are arranged in the height direction of the supporting frame, and each layer of shelf comprises a plurality of cross beams, a plurality of supporting rings and a layer plate. On the basis that the structural strength of the supporting frame is guaranteed, the using amount of steel such as beams and columns is greatly reduced, the supporting frame has the advantages of being good in structural strength and structural stability and light in weight, the self-weight load of the supporting frame can be effectively reduced, the loading capacity of the supporting frame is improved, and the supporting frame is particularly suitable for being applied to medium-large intelligent parking garages.