517results about How to "Guarantee the pouring quality" patented technology

The invention relates to a foaming material filling box with a reinforced layer and a slurry leakage hole and a manufacturing method thereof, belonging to the field of building construction. A main material of a body (2) of the filling box (1) is a light weight foaming material, the plane shape of the filling box (1) is rectangular, and the ratio of a long side to a short side is not more than 2;the upper surface of the body (2) is provided with the hard reinforced layer (3), the outer surface of the body is provided with an isolation layer (4); the hard reinforced layer (3) is located between the body (2) and the isolation layer (4); tangential angles or arc chamfers (5) are arranged at the peripheries of the upper surface and the lower surface of the filling box (1); and the middle part of the filling box (1) is provided with the vertical slurry leakage hole (6), the upper end of the slurry leakage hole (6) is in a big end up funnel shape, and the lower end of the slurry leakage hole (6) is in a big end down inverse funnel shape. In the invention, the sectional shape of the filling box meets the mechanical requirement, and the filling box is very convenient for production, transportation and installation, and has better structural reliability, shock resistance and crack resistance and favorable economical efficiency and applicability.

The invention discloses composite type V shape steel core concrete column construction method. Its features are that using embedded parts precision processing and installing for the steel tube and floor to ensure V steel tube welded connection; adopting computer setting out transversal for each phase to ensure V shape steel tube exact installation; inserting the chute into anchor connected reinforcing cage; using high position throwing down for the concrete cast to ensure steel tube concrete three-way under stress performance reach the design demand. The invention can be used in various composite type V shape steel core concrete column construction and application.

The invention relates to a split heads for binding reinforcing steel bars in building engineering, in particular to a height-adjustable recyclable reinforcing steel bar split heads. The height-adjustable recyclable reinforcing steel bar split heads comprises a lifting hook, a lifting mechanism and a bracket. The bracket comprises a tray with a central through hole, and three supporting legs which are distributed in a triangular shape are hinged to the lower portion of the tray. The lifting mechanism is a lead screw lifting mechanism, a screw of the lead screw lifting mechanism is sleeved by a handle sleeve integrally and fixedly connected with a nut, the screw is inserted into the central through hole of the tray to enable the lead screw lifting mechanism to be wholly assembled on the bracket, and the lifting hook for lifting reinforcing steel bars is welded at the lower end of the screw. The height-adjustable recyclable reinforcing steel bar split heads enables reinforcing steel bar meshes to be adjusted continuously and is light and convenient to adjust. Angles of the supporting legs can be adjusted to enable the split heads to be placed at will. The height of the lifting hook and the angles can be reduced and changed at will to enable the lifting hook and the supporting legs to be conveniently pulled out of concrete. After the concrete is poured, the split heads is easy to dismount. The split heads can be manufactured by using corner waste materials in construction sites, so that the materials are convenient to obtain. The split heads saves materials and is simple to manufacture.

The invention discloses a hollow fiber membrane assembly pouring device and a method thereof. The hollow fiber membrane assembly pouring device is composed of a flexible pad, a membrane assembly shell, a connecting piece, a pouring mould and an adhesive stirring tank, wherein hollow fiber membrane filaments are uniformly arranged by additionally arranging the flexible pad which is uniformly provided with holes, the roots of the membrane filaments are protected, an adhesive is prevented from entering the membrane filaments by blocking the two ends of the membrane filaments through a sealant, and an ultrasound defoaming device is additionally arranged in the adhesive stirring tank so that the defoaming efficiency can be improved, the components of the adhesive are also uniformly dispersed, and the mechanical strength of a membrane assembly is improved. The hollow fiber membrane assembly pouring device and the method thereof provided by the invention have the advantages that the pouring of a membrane assembly end socket is uniform, bubbles are not generated, glue leaking and cracking phenomena are avoided, meanwhile, the roots of the membrane filaments are effectively protected, a filament breaking phenomenon is prevented, the pouring quality of the hollow fiber membrane assembly is improved, the service life of the membrane assembly is prolonged, the equipment investment is small, the operation is convenient and rapid, and the hollow fiber membrane assembly pouring device can realize large-scale industrial application easily.

The invention discloses a pitched roof concrete construction method which is characterized in that a double-sided die sealing method is adopted to carry out construction on a pitched roof of which the slope is greater than or equal to 20 degrees; by bracing a bottom die and a top die of the pitched roof, concrete is poured to form a constraint under the slope condition; a short reinforcement is used as a bracket between the bottom die and the top die of the pitched roof; the short reinforcement has a diameter of 22 to 25 mm; the top die and the bottom die are connected into one whole body by split bolts; the split bolts have diameters of 14 to 16 mm; the split bolts are arranged at intervals of 250 to 300 mm; water stop rings are arranged in the middles of the split bolts; the water stop rings have diameters of 40 to 50 mm; reinforcement split heads are arranged on the upper surface of the bottom die for placing an upper negative reinforcement skeleton; sectional pouring and tamping are adopted in the pouring process of concrete, and a die plate at the upper part of the pitched roof is sealed step by step from bottom to top along the pouring progress of concrete.

The invention relates to a pier hydraulic leveling inner-climbing climbing form and a concrete pouring method thereby. The form consists of a slip form truss, a form system, an operating platform, a hydraulic lifting system and an accuracy control system, wherein two slip form truss girders are crosswise arranged, both ends of the two slip form truss girders are respectively connected with lifting frames, a wreath is in a quadrate or an elliptical shape and is fixed to the lifting frames, a quadrate or an elliptical form is hung and fastened on the wreath, the operating platform is divided into an upper layer and a lower layer which are both fixedly connected with the lifting frames, a hydraulic console is placed on the operating platform and a jack is installed on a crossbeam. The jack is controlled by the hydraulic console to lead the crossbeam to rise, the lifting frames are driven to upwards climb simultaneously with the wreath and the form which are connected with the lifting frames, and the concrete is poured in layers and lifted in several times; when the concrete is poured to the pier top, the climbing speed is lowered, and the form is finished and repaired after concrete pouring and is cured through water drenching after final set.

The invention discloses a connecting structure for an assembly type concrete shear wall edge member. vertical connecting reinforcing steel bar, which can be provided with an upset head, is reserved through a hole reserved in a large-diameter metal bellows, and is sleeved with a continuous spiral stirrup; then the vertical connecting reinforcing steel bar and the continuous spiral stirrup are commonly inserted into the large-diameter metal bellows; and fine aggregate concrete (or a grounding material) is poured into the metal bellows, so that the reliable connection of the edge member is realized. Due to reliable anchoring of the vertical connecting reinforcing steel bar, the optimization of the diameter, the quantity and the plane arrangement of the vertical connecting reinforcing steel bar, and the increase of the wet joint area on a splicing surface, full exertion of the bearing capacity of the shear wall is ensured; and multiple effective restrain for the subsequentlly-poured fine aggregate concrete (or the grouting material) is formed by the shear wall stirrup, a horizontal tie bar, the metal bellows and the continuous circular spiral stirrup, and thus the integral performance of the part is remarkably improved. According to the connecting method for the edge member, which is provided by the invention, the stress continuousness of the vertical steel reinforcing bar is ensured, the deformaility and the ductility performance of the vertical steel reinforcing bar are remarkably improved, and the shock resistance of the assembly type concrete shear wall is improved. Meanwhile, the method is simple in manufacturing process and facilitates the practice and application.

The invention relates to a long side slope protection concrete continuous rapid pouring and form-drawing system. A slip form mainly comprises a side form and a face form; the side form is connected with the face form by mutually-embedded sliding rails; U-shaped nail limiting holes are formed on the top surfaces of the sliding rails; the face form mainly comprises a panel, an operation platform, a protection railing, a plastering platform and the like, wherein the panel adopts a hollow steel-channel erected steel plate and water pressure bags are arranged in the steel sheet and under the operation platform; the side form adopts a sized combined frame steel form; a debugging bracing piece is arranged outside the side form; steel plate placement grooves are formed at intervals; water pressure bags are arranged in the steel plate placement grooves; a synchronous thin jack variable inclined cushioning body is arranged at the position of a bench. According to the invention, a side form self-rail form drawing system is adopted, so that ceramic can be effectively prevented from floating up in the pouring process, continuous pouring and integral forming of multiple stages of side slopes are implemented and the long side slope protection concrete continuous rapid pouring and form-drawing system has good economic and technical benefits. The invention also provides a construction method of the long side slope protection concrete continuous rapid pouring and form-drawing system.

The invention provides a concrete distributor with an arm support capable of both horizontal rotation and pitching movement. The concrete distributor comprises a tower body support and an arm support system connected in parallel with a concrete pumping pipeline. The head end of the arm support system is rotationally connected with the tower body support in horizontal rotation manner via a first horizontal rotation mechanism. The concrete pumping pipeline comprises a feeding pipe and a discharge nozzle. The arm support system is formed by the tail-to-head connection of a large arm, a middle arm and a small arm, which are in relative movement to one another. The tail end of the large arm is rotationally connected with the head end of the middle arm in horizontal rotation manner via a second horizontal rotation mechanism. The tail end of the middle arm is rotationally connected with the head end of the small arm via a pitching mechanism. The tail end of the small arm is connected with the discharge nozzle. Since the arm support system is capable of both horizontal rotation and pitching movement, the concrete distributor incorporates the horizontal operation and the vertical operation, integrates the advantages of the prior two types of concrete distributors, improves the single operation mode of the prior concrete distributor, and substantially overcomes the problems of the prior two types of concrete distributors.

The invention discloses a U-shaped steel-concrete composite beam, relates to a composite beam, and solves the problems that the conventional I-shaped steel-concrete composite beam has poor fire resistance and poor overall stability, an outsourcing steel-concrete laminated plate composite beam has low anti-shear bearing capacity, the complete cooperative work of a steel beam and concrete is not guaranteed easily. The U-shaped steel-concrete composite beam comprises a concrete plate, U-shaped steel, a plurality of pieces of angle steel, a plurality of longitudinal stress reinforcing steel bars, a plurality of erect reinforcing steel bars and the concrete; each web plate of the U-shaped steel is fixedly connected with a flange plate which is arranged horizontally; the U-shaped steel and the flange plate are integrated; the plurality of pieces of angle steel are fixedly connected in the U-shaped steel along the length direction of the U-shaped steel; an erect reinforcing steel bar is welded on the side surface of each piece of angle steel; the longitudinal stress reinforcing steel bars are fixedly connected with the corresponding erect reinforcing steel bars along the length direction of the U-shaped steel; the concrete plate is arranged on the top of the U-shaped steel; the reinforcing steel bars in the concrete plate are bent and then extend into the U-shaped steel; the concrete is cast in the U-shaped steel. The U-shaped steel-concrete composite beam is applied to civil engineering construction.

The invention provides a freezing method of a frozen wall of a frozen wall of an inclined shaft, solving the problems of difficulty in digging in the construction because an aquifer of the inclined shaft is frozen and low construction speed and meeting safe and rapid construction requirements of the aquifer of the inclined shaft. The freezing method comprises the following steps of: drilling multiple rows of freezing holes which are parallel to each other and vertically distributed, on the group, along an axial freezing range of the inclined shaft, wherein the row number of the freezing holes is determined according to the cross section size of the inclined shaft and the required freezing time, the freezing holes at the lateral part and the freezing holes at the end part respectively go deep into a water-resisting layer in the depth, water in the aquifer at the lower part is isolated by the water-resisting layer, and the freezing holes at the top go deep into the top of the inclined shaft in depth; then arranging a freezing pipe and a liquid supply pipe in each drilled freezing hole, wherein the freezing pipe and the liquid supply pipe in each drilled freezing hole are communicated with an external freezing station; and finally, starting the freezing station and enabling low-temperature saline water prepared by the freezing station to flow in the each freezing pipe to absorb heat of the stratum around each freezing pipe to form a frozen cylinder, wherein all frozen cylinders are continuously enlarged and further connected to form the frozen wall which can resist earth pressure and water pressure.

The invention relates to the technical field of casting, in particular to a casting technique of a supporting frame for building. The casting technique comprises the following processes that an outer cavity real sample model is adopted to be combined with an inner cavity sand core to form a cavity of a casting; the outer cavity real sample comprises a casting model sample and a supporting bed mould wholly covering the upper side of the supporting end of the casting model sample, and the top plane of the supporting bed mould serves as a model parting surface; the inner cavity sand core comprises a first sand core body for forming an inner cavity and a second sand core body for forming a small top hole, the second sand core body is inserted into the first sand core in a matched manner, and the bottom of the first sand core extends to the lower side of a flange hole and is fixed to a lower sand mould through an arbor; an open riser is arranged at the supporting end of the casting, a riser neck is arranged between the open riser and the end face of the supporting end, and a blind riser is arranged in the flange hole of the casting; the inner cavity of the casting, the normal direction of the end face of the flange end and the periphery of the flange end are each provided with a direct cooling chiller; and an open type gating system is adopted, a flow gate of an ingate is located below the blind riser of the inner cavity and is directly communicated with the blind riser, and a filter is arranged at the tail end of the flow gate.

The invention relates to a high-mountain narrow-valley arch dam foundation segmented and staged grouting method, and belongs to a foundation treatment method of a rock surface of a high steep bank slope foundation of a high-mountain narrow-valley arch dam foundation. The high-mountain narrow-valley arch dam foundation segmented and staged grouting method comprises the following steps: carrying out consolidation grouting and drilling after acceptance of excavation of the arch dam foundation; carrying out first-stage consolidation on the inside of a consolidation grouting hole; drilling a residual contact segment by the distance of 1 m with a phi 75 mm drilling sleeve after first-stage consolidation grouting is finished; burying a grouting system; pouring dam body concrete after first-stage consolidation grouting is finished; after joint grouting of a dam body is finished or while joint grouting of the dam body is carried out, carrying out second-stage consolidation on a consolidation grouting contact segment of the dam foundation. Consolidation of a bed rock contact segment and contact grouting are combined together, meanwhile, effects of contact segment consolidation and contact grouting are achieved, the work amount of the contact grouting system is reduced, the construction period is shortened, a construction technology is simplified, foundation treatment purposes of a high steep bank slope of the dam foundation of simplicity and convenience in construction, reliable technology, economy and reasonableness of grouting treatment of the high steep bank slope are achieved, and the problems encountered in foundation treatment of a dam segment of a bank slope are solved.

The invention discloses a green self-heat-insulation wall body structure system, which comprises one or a plurality of structure forms in a load bearing building body self-heat-insulation wall body structure, a non-load-bearing building body self-heat-insulation wall body structure, a sandwich building body self-heat-insulation wall body structure, a sticking building body self-heat-insulation wall body structure and a sticking and concrete casting composite self-heat-insulation wall body structure. The green self-heat-insulation wall body structure system has the advantages that the structure is reasonable, and the heat insulation performance is excellent.

The invention belongs to the field of general building construction, in particular to a combination-typed off-loading component cast-in-situ hollow floor and a construction method. The invention adopts a technical proposal that the invention comprises off-loading components which are fixed between an upper layer reinforcement and a lower layer reinforcement by a fixed connecting part; the concrete is filled in the gaps between the off-loading component and the reinforcement in the whole floor and between the off-loading components; the off-loading component comprises at least two cylindrical or box-shaped or spherical off-loading cells; the off-loading components are intermittently or compactly arranged; the off-loading components with different shapes are combined and applied; the type and form of the off-loading components are smartly arranged according to the requirement, thus having the advantages of good porosity, good quality, light self-weight and optimum section.

The present invention provides a kind of formwork assembling connector for raising formwork assembling quality and speed in building construction. The present invention features that the connector consists of plate bolt in special shape and T-shaped wedged spring board, the former consists of integral bolt head, bolt shoulder, bolt body and bolt tail; while the latter consists of T-shaped head and wedge body with prolate holes matching the bolt head and the bolt shoulder. When the connector is used, the plate bolt is penetrated through the connecting hole in the assembled formwork, the spring board has its prolate holes around the bolt shoulder and inside the bolt head, and the fastened wedge body produces some elastic bending. The present invention has reliable formwork assembling andthus high concrete casting quality.

The invention discloses a combined type steel pipe concrete special-shaped column with a honeycomb-hole partition plate. The combined type steel pipe concrete special-shaped column comprises a steel pipe with honeycomb holes and concrete, and is characterized in that longitudinally arranged honeycomb holes are formed in two walls of the steel pipe with the rectangular or square cross section; U-shaped steel is arranged on the outer side of the honeycomb holes; and the concrete is poured into inner cavities of the rectangular or square steel pipe and the U-shaped steel. By the technical scheme, the section of the steel pipe concrete special-shaped column is divided into three chambers; connection among the concrete in the three chambers is enhanced; the interaction between the steel and the concrete is effectively improved; the steel and the concrete are directly stressed, so that the size of the section is reduced, and the width-to-thickness ratio of a steel plate is reduced; the performance of materials is comprehensively developed; the section performance and the bearing capacity are improved; the shock absorption property of the column of the type is improved; the combined type steel pipe concrete special-shaped column is easy and convenient to construct; the vibrating quality and the pouring quality of the concrete are guaranteed; the economical benefit is high; the bonding strength between the concrete and the steel plate is improved; an embedding effect of the steel plate is obvious; high integrity is realized; and a combining effect is outstanding.

The invention provides a truss platform for high and large space top plate concrete construction. The truss platform comprises a truss support iron casting; a steel bracket is fixedly connected to the truss support iron casting; a rail is mounted on the steel bracket; a steel framework truss is mounted on the rail; the steel framework truss is capable of sliding on the rail; a base plate is paved on the steel framework truss; a full hall bent frame, a supporting circular purlin and a template. The truss platform for high and large space top plate concrete construction is used for effectively the problem of supporting and erection of high and large space top plate concrete construction; the usage of materials is reduced; the truss platform has the advantages of safety, reliability, improvement of construction efficiency and the like; the construction speed is greatly increased, and reliable guarantee is also provided for construction safety.

The invention relates to a construction method for supporting templates in the building field, particularly relating to a construction method for supporting the templates at construction joints of a frame structure. The construction method comprises the following steps: top die sticks are arranged on components at two sides of the construction joints; a back arris is made of battens; the back arris is arranged in a through-length manner along a longitudinal direction of the component; the templates at the construction joints are supported at two sides of the back arris and arranged in the construction joints; the back arris and the templates arranged at the two sides of the back arris are connected with connecting pieces and are connected into a whole through the connecting pieces; then holes are drilled at specific positions of the templates at the construction joints; and split bolts are penetrated into the drilling holes to oppositely pull the templates in the construction joints and the templates at outer sides of the components, and additionally, the top die stick is supported in the components so that the templates are effectively fixed; concretes of the components at the two sides of the construction joints are poured at intervals; and at last, the back arris and the templates are dismantled. By using the method, section sizes of the concretes after pouring moulding on the two side structures of the construction joints, protective layer thicknesses of the components and pouring quality of the component concretes can be effectively ensured, thereby facilitating construction and operation.

The invention relates to a UHPC (ultra-high performance concrete) poured orthotropic steel bridge deck combination structure and a manufacturing method thereof. The UHPC poured orthotropic steel deck combination structure comprises a bottom steel bridge deck, shear nails, a reinforcing mesh and an UHPC pavement layer, wherein the shear nails and the reinforcing mesh are arranged on the steel bridge deck, the UHPC pavement layer is poured by UHPC and wraps the shear nails and the reinforcing mesh, and the UHPC pavement layer and the steel bridge deck form the bridge deck combination structure. Compared with existing steel bridge deck pavement, the strength, toughness and durability of the steel bridge deck combination structure can be remarkably improved, curing condition requirements are low, steam curing and pressure forming are omitted, construction technology is simple and convenient, construction quality is easily controlled, the tension resistance and the shear resistance of the pavement layer are effectively enhanced by the shear nails and the reinforcing mesh, the problem of diseases caused by asphalt pavement is solved, and damage to the pavement layer such as cracking, upheaval, displacement and pit slots is avoided.

The invention discloses a steel arch rib outer wrapped concrete construction method for a steel trussed arch bridge and relates to the technical field of building construction of steel trussed arch bridges. The construction method includes the steps that each steel arch rib section to be poured with concrete is provided with a hanging bracket system and a bottom formwork; after installation is finished, bottom board reinforcing steel bars are tied; each hanging bracket system is used for erecting a construction support and an operation platform, web reinforcing steel bars and a web formwork of a first ring construction section are installed, and the outer wrapped concrete is poured to the first ring construction section; after the concrete is poured, an inner cavity support and a platform are erected, a high construction support and an operation platform are connected, reinforcing steel bars and a formwork of a second ring construction section are installed, and the outer wrapped concrete is poured to the second ring construction section; and after the concrete is poured, outer wrapped concrete construction of the next steel arch rib section is started, and the operation is repeated till the concrete is poured to all the steel arch rib sections. By the adoption of the method, the construction difficulty is lowered, the application range is wide, construction efficiency is effectively improved, construction safety is guaranteed, and adaptability and economical efficiency are high.

The invention discloses cast production technology for a shell. The technology sequentially comprises the steps of: manufacturing a mould, namely manufacturing an external metal mould, wherein the lower part of the external metal mould is provided with a molten iron inlet; manufacturing a sand mould, namely manufacturing a foaming mould, coating cast steel paint on the surface of the foaming mould, filling resin sands into the mould and hardening the sand mould by air blowing; setting a core, namely assembling the sand mould and the external metal mould, wherein a high temperature resistant material is coated on the core; pouring at the temperature of between 1,380 and 1,420 DEG C for 4 to 8 seconds and preserving the heat for 100 to 150 minutes, wherein a product yield reaches 50 to 70 percent; and performing subsequent operation, namely opening the mould to take the cast out, and cleaning and grinding the cast to obtain the required shell. The technology has the advantages of high sand mould quality, difficult cracking, good cooling effect and uniform internal density of the cast.

An integral flow and temperature control device comprises an electric ball valve, an interpolated digital temperature measuring device, a flow measuring device and an integral control circuit board which are fixedly integrated and packaged in a casing. Loose joints with diameter equal to that of external pipes are arranged at two ends of the integral flow and temperature control device, and accordingly the integral flow and temperature control device is flexible, convenient and fast in connection. The integral flow and temperature control device is subjected to data exchange with a main controller and supplied with power through a bus, can complete functions of temperature collection and flow PID(proportion, integration and differentiation) regulation and the like, can complete flow regulation once the main controller outputs a specific flow rate, has excellent stability in control (floating control/proportion control), guarantees stability and accuracy of cooling water flow, and further controls concentrate temperature and stress, and guarantees engineering quality and progress.