Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

557results about "Form treatment" patented technology

Prefabricated composite floor slab and steel bar truss floor deck directly utilizing old slabs, and method

Disclosed in the present invention are a prefabricated composite floor slab and steel bar truss floor deck directly utilizing old slabs, and a method. The prefabricated composite floor slab comprises new concrete, old concrete slabs, a slab bottom reinforcing mesh, a slab surface reinforcing mesh, steel bar trusses, steel dowel bars, and post-cast concrete. The steel bar truss floor deck comprises new concrete, old concrete slabs, a steel base plate, a slab surface reinforcing mesh, steel bar trusses, steel dowel bars, and support steel bars. According to the present invention, the old concrete slabs are directly utilized instead of being crushed into recycled blocks or recycled aggregates for reuse, thereby greatly simplifying processing procedures, significantly increasing the recycling rate of old concrete, and significantly reducing the usage amounts of new concrete and corresponding cement, thus achieving a significant carbon emission reduction effect; through holes are vertically drilled in the old concrete slabs, the steel dowel bars are inserted into the through holes, gaps between the steel dowel bars and the through holes are then filled with a high-strength grouting material, and shear resistance members are arranged on the side edges of the old concrete slats to enhance the shear resistance at the interface between the new concrete and the old concrete.
Owner:SOUTH CHINA UNIV OF TECH

Upward-pulling formwork erecting construction method for concrete cantilever structure

The invention discloses a concrete cantilever structure pull-up formwork construction method which is characterized by comprising the following steps: load calculation and component model selection; pre-burying the U-shaped bolts; pre-burying the upper-section pull rod; i-shaped steel end connecting plates are welded, and double-layer angle steel connecting plates are welded to the cantilever ends of the I-shaped steel; i-shaped steel cantilever girders are installed; assembling a pull rod system; the pull rods are fastened and leveled with a system, the two pull rods are synchronously fastened, the double rods are ensured to simultaneously advance and retreat during adjustment of an adjusting device, and a level gauge is used for observation and leveling after initial adjustment; the formwork frame and the safety enclosure are installed; pull rod pre-tensioning and deflection monitoring are carried out, pre-tension force is applied through an adjusting device, the deflection of the cantilever end is detected, monitoring points are arranged, and a deformation early warning mechanism is established; regulating and controlling concrete pouring; and removing the mold and recycling. The overhanging structure is high in anti-overturning capacity and suitable for large-span and special-shaped overhanging structures, and the safety is remarkably improved.
Owner:CHINA MCC20 GRP CORP LTD

Demoulding device and demoulding method for inner mould of rectangular concrete body without top cover

The invention relates to a top-cover-free rectangular concrete body inner mold demolding device and demolding method.According to the top-cover-free rectangular concrete body inner mold demolding device, through innovative structural design, a rectangular inner mold is divided into two angle molds and two L-shaped molds, and a track extending by a specific angle (45 degrees in the horizontal direction) and an intermittent driving device are matched. During demolding, the intermittent driving device can accurately drive the two angle molds to synchronously slide inwards firstly, the contact area and friction force between the inner mold and a concrete body are effectively reduced, then the two L-shaped molds are driven to synchronously slide inwards, and the whole demolding process is completed. Compared with a traditional demolding mode, the demolding efficiency is greatly improved, and the demolding time is shortened; by the adoption of the gradual demolding mode, direct beating and violent disassembly of the mold and the concrete body are avoided, the risk that the inner mold and the concrete body are damaged is effectively reduced, the surface integrity and the internal structural strength of the concrete body are guaranteed, the service life of the inner mold is prolonged, and the production cost is reduced.
Owner:JIANGMEN GETO NEW MATERIALS TECH CO LTD

Prefabricated conical shell steel supporting structure capable of being hoisted for squat silo construction

The invention discloses a prefabricated conical shell steel supporting structure capable of being hoisted for squat silo construction. The prefabricated conical shell steel supporting structure comprises a conical shell wall plate assembly, a ring beam assembly, a radial beam, a lifting lug assembly, an adjustable supporting assembly, an anti-swing assembly, a connecting assembly, an auxiliary positioning assembly and a sling connecting assembly. Core components such as the conical shell wall plate and the supporting framework are all prefabricated in a factory, the quality is controllable, splicing and hoisting are only needed on site, high-altitude erecting operation is greatly reduced, the high formwork erecting risk and the hidden danger of falling objects from high altitudes are reduced, hoisting stability is high, safety is improved, hoisting stress is dispersed through the lifting lug stiffening plates, and the hoisting efficiency is improved. The anti-swing assembly and the cable wind rope cooperatively control swing, it is ensured that the overall hoisting process is stable, structural collision and stress overload are avoided, the splicing precision is high, the adaptability is high, adjustability during installation is achieved through the adjustable supporting assembly arranged on the squat silo top, and it is ensured that the hoisted steel supporting structure can accurately fall on the preset position of the squat silo top.
Owner:SHANXI ERJIAN GRP CO LTD

A highly integrated intelligent construction platform for building main structure construction

The present invention discloses a highly integrated intelligent construction platform for use in the construction of a building's main structure. The platform comprises a Bailey frame and supporting columns. A cantilever support frame is connected below the supporting columns, which is connected to a support guide rail and a lifting mechanism. One end of the Bailey frame extends out of the building's main structure and is connected to a trolley crane. A material distributing machine, a top scaffolding board, a mobile house, a canopy, and a sprinkler system are integrated above the Bailey frame. A lifting material distributing platform is provided below the trolley crane. A construction elevator is provided on the side of the Bailey frame near the mobile house. The support guide rail and the lifting material distributing platform are both connected to a plurality of wall guide seats. A connecting frame is connected between a plurality of supporting columns on the same side. A plurality of groove-shaped structural members are provided on the side of the Bailey frame. The beneficial effects of the present invention are: achieving multi-functional high integration, greatly improving the working efficiency of the intelligent construction platform, reducing manual labor and the need for other external equipment, and achieving cost reduction and efficiency improvement; and convenient lifting and high safety.
Owner:ZHONGYIFENG CONSTR GRP +4

Adjustable back arris arc template structure

The invention discloses an adjustable back arris arc formwork structure which comprises a formwork assembly and a hoisting mechanism, the hoisting mechanism is connected with a winch on an operation beam of a tower building machine, the formwork assembly comprises a plurality of flexible plates and a plurality of supporting plates, positioning plates are fixed to the two ends of each supporting plate, and splicing assemblies are arranged on the positioning plates; a flexible plate is connected between every two adjacent supporting plates through an assembling assembly, the flexible plates are elastic, and the front end faces of the flexible plates and the front end faces of the supporting plates jointly form a continuous smooth working face. The rear end face of the supporting plate is connected with a reinforcing back ridge, the middle of the rear end face of the flexible plate is provided with a plurality of connecting blocks, and the reinforcing back ridge is provided with a plurality of adjustable back ridge assemblies. The curvature of the arc formwork can be accurately controlled in the construction process of the tower building machine, and a high-reliability solution is provided for curved surface concrete pouring.
Owner:CCCC FOURTH HIGHWAY ENG CO LTD

Bottom formwork dismounting method for superaltitude cable bent tower lower cross beam support-free method construction

The invention relates to the technical field of bridge engineering, in particular to a bottom formwork dismounting method for superaltitude cable bent tower lower cross beam support-free method construction. Comprising the following steps that S1, an existing lower cross beam serves as a disassembling tool supporting system, a plurality of stand columns are arranged on the top of the lower cross beam, distribution beams are erected among the stand columns in the bridge direction, and a sliding type hanging frame system is erected on the distribution beams; s2, a polytetrafluoroethylene sliding plate and a limiting device are arranged between a sliding beam and a distribution beam of the sliding type hanging frame system; s3, longitudinal beams are laid on the tops of the lower cross beams, upper cross beams are transversely erected at the two ends of the longitudinal beams, and winches are arranged; s4, the bottom formwork is segmented through a sliding type hanging frame system; and S5, after the bottom formwork is removed, the overlapped sliding type hanging frame system, the distribution beams and the stand columns are removed, and the original appearance of the top structure of the lower cross beam is recovered. The cyclic operation of positioning, cutting and shifting of the superaltitude lower cross beam support-free method bottom formwork is achieved through the traction sliding type hanging frame system, operation is convenient and fast, and stability and safety are high.
Owner:CHINA RAILWAY CONSTRUCTION BRIDGE ENGINEERING BUREAU GROUP SOUTHERN ENGINEERING CO LTD +2

Outer containment dome steel mould hoisting structure and method

The invention discloses an outer containment dome steel mold hoisting structure and method, and belongs to the technical field of civil construction. The hoisting structure comprises a plurality of lifting lugs, a lifting hook, a plurality of steel wire ropes, a plurality of guide assemblies, a plurality of annular limiting assemblies and a plurality of radial limiting parts; the plurality of lifting lugs are fixed on the outer side of the dome steel mould of the outer containment; the lifting hook is connected with the plurality of lifting lugs through a plurality of steel wire ropes to lift the dome steel mould of the outer containment; the guide assembly comprises a guide column and a plurality of pairs of guide limiting pieces; the guide column is vertically fixed at the top of the outer containment; the guide limiting pieces are fixed to the outer side of the outer containment dome steel mold, the multiple pairs of guide limiting pieces are vertically distributed, and each pair of guide limiting pieces is arranged on the two sides of the corresponding position of the guide column; the annular limiting assembly comprises a shell annular limiting piece and a steel mold annular limiting piece. The radial limiting piece is fixed to the top of the outer containment and located on the outer side of the in-place position of the dome steel mold of the outer containment. The method has the advantages of high efficiency, project progress optimization, stable and reliable working quality and the like.
Owner:CHINA NUCLEAR IND HUAXING CONSTR

Building construction template waste removing device

The invention discloses a building construction template waste clearing device, and relates to the technical field of building template clearing, the building construction template waste clearing device comprises a base, a workbench and a shell, the top of the workbench is provided with two conveyors, the top of the shell is provided with a dust collection module, and the bottom of the workbench is provided with a collection groove; the top of the workbench is fixedly connected with two symmetrically-arranged first supporting plates. According to the building construction formwork waste removing device, before removing, a formwork can be heated, the removing efficiency and effect can be improved, after removing, defects such as pits in the surface of the formwork can be automatically glued and repaired, meanwhile, glue is heated and dried, the removing effect can be improved, and therefore the subsequent using effect is guaranteed, and the building construction formwork waste removing device is suitable for popularization and application. And moreover, the gluing length and the drying length can be automatically adjusted according to the size of the template, use is more convenient and faster, and meanwhile waste is avoided.
Owner:ZHENLONG CONSTR CO LTD

Bearing device for mounting cantilever beam in building construction

The invention relates to a bearing device for mounting a building construction cantilever beam. The bearing device comprises a moving seat, a swing knocking assembly, a bearing assembly and a driving assembly. Lifting columns are evenly and vertically arranged on the top of the moving seat upwards, a supporting platform is arranged on the tops of the lifting columns, a bracket is fixed to the tops of the two telescopic rods adjacent in the front-back direction so that a cantilever beam bottom die can be clamped in the bracket, a driving motor is fixed to the supporting platform, and the output end of the driving motor is in transmission connection with a reverse screw. The two sliding blocks are oppositely arranged on the reverse screw and the transverse shaft and can synchronously move oppositely or oppositely along the reverse screw. The main shaft is rotationally arranged above the sliding block; the outer end of the main shaft is fixedly sleeved with a gear, and the gear is meshed with the rack. The inner end of the main shaft is fixedly connected with an eccentric wheel on which the knocking block is mounted. Precise positioning of the bottom die can be guaranteed, full-coverage dynamic knocking can be carried out on the template before die stripping, concrete adhesion is effectively avoided, and the construction efficiency and quality are remarkably improved.
Owner:CHINA CONSTR SEVENTH ENG DIVISION CORP LTD

Large cantilever concrete structure formwork layered anchor pulling construction method and intelligent monitoring system

The invention discloses a large cantilever concrete structure formwork layered anchor pulling construction method and an intelligent monitoring system, and particularly relates to the field of building construction.The large cantilever concrete structure formwork layered anchor pulling construction method comprises the steps that a 16 # I-steel cantilever heavy frame is installed by pre-burying a high-strength bolt sleeve and conducting three-dimensional positioning; the first to sixth rows of frame bodies are erected layer by layer, a secondary top layer is poured, and the first to fourth phi-20 flower basket pull rods are sequentially installed after top layer concrete is poured; then main and secondary keels and an adjustable jacking are installed, a formwork is laid, and the elevation is corrected to be + / -3 mm; steel bar numerical control machining straight thread connection and water and electricity pre-burying are synchronously completed; arranging a vibrating wire strain gauge, a spoke pressure gauge and a tilt angle sensor, uploading data to the BIM in real time, and establishing load-deformation dual-threshold early warning; after the formwork is removed, a scaffold and a main body structure are tied and reinforced in time at the upturning ridge of the eave gutter on the top layer of the concrete structure according to a wall connecting piece method through steel pipe fasteners; the formwork and the outer protection frame are integrated, concrete is poured twice, early warning and alarm linkage are achieved, and safety and high efficiency are achieved.
Owner:中交雄安建设有限公司 +1

Building construction template waste removing device

The utility model discloses a building construction template waste removing device, which relates to the technical field of building construction and comprises a removing platform, two translation devices are arranged at the upper end of the removing platform, and the upper ends of the front translation device and the rear translation device are fixedly connected with a cleaning device. And scraping devices are fixedly connected to the front side and the rear side of the upper end of the removing platform and located in the cleaning device, two fixing devices are fixedly connected to the left side and the right side of the upper end of the removing platform, and supporting legs are fixedly connected to the four corners of the lower end of the removing platform. According to the template cleaning device, the first electric telescopic rod is controlled to extend, the lifting support moves downwards along the lifting groove, the roller brush gets close to a fixed template, the rotary motor is controlled to rotate, the roller brush cleans the template, during cleaning, the valve is manually opened, the water pump pumps out water in the water tank, and then the template is cleaned. And finally, the water is sprayed out from the spray head to wash the template.
Owner:INSTALLATION BRANCH WEIHAI CONSTR GRP CO LTD

Rapid manufacturing, mounting and pouring method for underwater temporary concrete cofferdam formwork

The invention provides an underwater temporary concrete cofferdam formwork rapid manufacturing, mounting and pouring method which comprises the following steps that bin division is conducted in the length direction of an underwater concrete cofferdam, independent pier bin positions and permeable formwork bin positions which are sequentially and alternately distributed are included, and the adjacent independent pier bin positions and permeable formwork bin positions are connected together; firstly, independent pier bin positions are constructed, and a plurality of independent piers arranged at intervals are formed; then, after the two adjacent independent pier bin positions are connected together through the water-permeable formwork bin positions, concrete is poured into the water-permeable formwork bin positions; and concrete in the areas of the independent piers and the permeable formworks is cured, after curing is conducted to a set degree, the bin position formworks of the independent piers are dismantled, and concrete cofferdam construction is completed. According to the method, the construction efficiency is greatly improved, the construction safety and stability are guaranteed, and the construction period is effectively shortened.
Owner:SINOHYDRO BUREAU 11 CO LTD

Support structure, load-bearing structure comprising same, and method for setting up and stripping formwork

The invention discloses a support structure (2) for formwork (20) for concreting building elements of a building, comprising: a formwork support member (4) for supporting the formwork (20), a base member (3) which can be positioned with respect to the building, an intermediate adapter (5) by means of which the formwork support member (4) is articulated on the base member (3), a diagonal strut (6) which supports the formwork support member (4) and the base member (3) approximately diagonally with respect to one another, a first pivot bearing (L1) between the intermediate adapter (5) and the base member (3), a second pivot bearing (L2) between the formwork support member (4) and the intermediate adapter (5), and a support element (9) between the intermediate adapter (5) and another element of the support structure (2), wherein the diagonal strut (6) is pivotably mounted in a third pivot bearing (L3) and a fourth pivot bearing (L4) with respect to the base member (3) and the formwork support member (4), respectively, and the support element (9) is adjustable or detachable in order to allow the intermediate adapter (5) to pivot with respect to the base member (3). In a load-bearing structure (1), at least two successive support structures (2) are connected to one another in a direction transverse to the load-receiving plane (E). The invention also describes methods for setting up and stripping formwork from a building element to be concreted of a building by means of at least one support structure (2) which is supported with respect to the building.
Owner:PERI GMBH

Building engineering cost budget combination template

The utility model discloses a constructional engineering cost preliminary budget combination template, relates to the technical field of constructional engineering, and aims to solve the technical problem that the current constructional engineering cost preliminary budget combination template is inconvenient to quickly replace, the constructional engineering cost preliminary budget combination template comprises a fixed bracket, and a mounting plate is arranged on the fixed bracket. According to the utility model, the four groups of templates are arranged in the mounting plate, the four groups of templates are respectively the basic data entry area, the cost calculation area, the result display area and the related information supplement area, and then the quick fixing structures corresponding to the mounting rods on the templates are arranged on the back surface of the mounting plate, so that when the templates are mounted, the inserting rods of the quick fixing structures are pulled, and the templates can be quickly fixed. And at the moment, the spring is in a compressed state, then the template is placed in the placement groove of the mounting plate, the mounting rod of the template penetrates through the first through hole, and then the insertion rod is pushed to be quickly reset and inserted into the second through hole of the mounting rod under the action of the spring, so that quick mounting of the template can be realized.
Owner:裴晓强

Larsen steel sheet pile permanent enclosure structure system

The utility model discloses a Larsen steel sheet pile permanent enclosure structure system which comprises reinforcing steel bars which are vertically welded on concave surfaces of the inner surface of a Larsen steel sheet pile at intervals; the battens are vertically arranged on the inner sides of the steel bars in the concave surfaces of the inner surface of the Larsen steel sheet pile, and the battens are connected with the steel bars; the wood formworks are laid on the outer sides of the steel bars in the concave surfaces of the inner surface of the Larsen steel sheet pile, the wood formworks are fixedly arranged on the battens through nails, the wood formworks block the concave surfaces to form hollow cavities, the outer surfaces of the wood formworks and the convex surfaces of the inner surface of the Larsen steel sheet pile are located on the same plane, and the outer surfaces of the wood formworks and the convex surfaces of the inner surface of the Larsen steel sheet pile are located on the same plane. A plane structure is formed on the inner surface of the Larsen steel sheet pile; the waterproof coiled material is laid on the inner surface of the Larsen steel sheet pile; and the drift sand is densely filled in the cavities of the concave surfaces of the inner surface of the Larsen steel sheet pile. The utility model has the advantages of high structural strength, good bearing capacity, good non-deformability, good waterproof performance, short construction period and low cost.
Owner:SHANGHAI CONSTRUCTION FIRST CONSTRUCTION (GROUP) CO LTD

External-installation climbing and overturning combined formwork system and method

The present invention relates to the technical field of bridge construction. Disclosed are an external-installation climbing and overturning combined formwork system and method. The present formwork system comprises an operation platform and a climbing assembly, wherein the climbing assembly is connected to the operation platform to drive the operation platform to climb; and the operation platform is connected to a forming formwork, the forming formwork can slide relative to the operation platform so as to adjust the distance between the forming formwork and a pier column, and when a pouring section of the pier column changes, a variable cross-section pier column can be poured. Further disclosed is an external-installation climbing and overturning combined formwork method. The present invention has the advantages whereby a pier column with an inclined surface can be poured and constructed easily without needing a crane, the operation platform can be kept at a certain safe distance from the pier column at all times, and safety construction specifications are met.
Owner:CHINA FIRST HIGHWAY ENGINEERING CO LTD +1

System and procedure for determining a density

The invention relates to a system for determining the compaction of a flowable, solidifiable building material, in particular concrete, during the production of a structural element with the building material, wherein the flowable building material is introduced into a formwork system (10), comprising: at least three sensors (S1, S2, S3) to determine an amplitude (A S1 , A S2 , A S3 ) a vibration introduced into the flowable building material by a vibration unit (VE), wherein the sensors (S1, S2, S3) are arranged on the formwork system (10), at least one computing unit that is set up to perform calculations based on the amplitudes (A) determined by the at least three sensors (S1, S2, S3). S1 , A S2 , A S3) to calculate possible positions (D1, D2, D3) of the vibration unit (VE) relative to the respective sensors (S1, S2, S3) and, based on this, to triangulate the current position of the vibration unit (VE) relative to the formwork system (10), a documentation unit for documenting the dwell time of the vibration unit (VE) in the respective current positions of the vibration unit (VE) relative to the formwork system (10), the computing unit determines a calculated compaction value in the respective current positions based on the respective current positions of the vibration unit (VE) and the documented dwell time in the respective current positions.
Owner:PERI GMBH

Post-construction hole formwork reinforcing structure and construction method thereof

The application discloses a post-pouring hole formwork reinforcing structure for building construction and a construction method thereof, and belongs to the technical field of building construction. The post-pouring hole formwork reinforcing structure comprises an empty form tube, which is vertically arranged in a post-pouring hole of a floor slab, and the middle part of the empty form tube is outwardly protruded to form a water-stop form box, the inner cavity of the water-stop form box is communicated with the inner cavity of the empty form tube to form a first pouring space, the bottom of the floor slab is attached with a formwork, the second pouring space is formed between the formwork and the inner wall of the post-pouring hole and the empty form tube, and the formwork is provided with a perforation. A suspender is movably arranged in the empty form tube and the perforation, the lower end of the suspender is detachably provided with a supporting piece, and the supporting piece is supported on the formwork. A counter-force piece is detachably arranged on the upper end of the suspender, and two supporting rods of the upper aperture of the post-pouring hole are supported on the counter-force piece. After the concrete poured in the second pouring space is solidified and the suspender is removed, the concrete is poured in the first pouring space to form a water-stop form module. The application solves the problem that the existing floor slab has a high risk of leakage after the line hole is sealed.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD

Concrete column forming combined template

The utility model relates to the field of civil engineering, and discloses a concrete column forming combined formwork which comprises a bottom plate, limiting grooves are formed in the front side and the rear side of the upper portion of the bottom plate, threaded blocks are slidably connected to the left side and the right side in the limiting grooves, sliding grooves are formed in the upper portions of the threaded blocks, and quick-release formwork assemblies are slidably connected to the interiors of the sliding grooves. Driving assemblies are arranged on the front portion and the rear portion of the left side of the upper portion of the bottom plate correspondingly, fixing plates are fixedly connected to the left side and the right side of the upper middle portion of the bottom plate correspondingly, the quick-release formwork assembly comprises a formwork box, a limiting block, a connecting rod, a discharging plate and a limiting bolt, the formwork box is slidably connected to the upper middle portion of the bottom plate, and the limiting block is slidably connected to the interior of a sliding groove. According to the utility model, through the matching among the template box, the limiting block, the connecting rod, the blanking plate, the limiting bolt and other structures, the combined template can be quickly assembled and disassembled, and the combined template is suitable for different types of concrete column forming templates.
Owner:SHAOGUAN RESIDENTIAL CONSTR ENG CO LTD

Construction method of soft foundation pit supporting and wall formwork

The application discloses a construction method of a soft foundation pit support and wall formwork. The method comprises the following steps: using cement mixing piles as the foundation pit support and wall outer formwork, constructing a shotcrete layer on the cement mixing piles, using the shotcrete layer as the outer wall formwork, drilling a rebar hole on the shotcrete layer, fixing an inner formwork through a full-thread water stop screw, pouring concrete in the inner formwork, and finally completing the wall construction of the underground space.
Owner:CHINA MCC17 GRP CO LTD

Building template removing device

The utility model discloses a building template dismantling device, which belongs to the technical field of building construction and comprises a crowbar, one end of the crowbar is detachably connected with a mounting seat, the other end of the mounting seat is fixedly connected with two prying teeth, a mounting cavity is arranged in the middle of the crowbar, and an avoiding groove communicated with the mounting cavity is arranged on the outer wall of the crowbar. A knocking mechanism is arranged in the mounting cavity and used for knocking the formwork after the prying teeth extend into the gap between the formwork and the concrete wall, and the formwork and the concrete wall can be separated conveniently. The device has the beneficial effects that after the prying teeth are inserted into the gap between the formwork and the concrete wall, the prying bar is knocked through the knocking mechanism, the formwork is knocked indirectly, and the formwork can be separated from the concrete wall conveniently.
Owner:XINJIANG CONSTR ENG GRP

Buckle splicing method and system for 3D printing special-shaped concrete formwork and storage medium

The invention discloses a buckle splicing method and system for a 3D printing special-shaped concrete formwork and a storage medium, and the method comprises the steps: carrying out the multi-angle shooting of a target object, and constructing a three-dimensional model based on a shot picture; preprocessing and splitting the three-dimensional model; buckle thickness design, positioning design and error compensation are conducted on the split modular parts, and a 3D printing model is generated; printing parameters of the 3D printing model are determined; printing the component based on the printing parameters, and performing surface treatment on the component; and the processed components are buckled and assembled, and the special-shaped concrete model is obtained. High-precision splicing and convenient splicing of the 3D printing concrete formwork are achieved, the 3D printing concrete formwork can adapt to complex structures, the construction efficiency and quality are remarkably improved, and green buildings and sustainable development are promoted.
Owner:SOUTH CHINA UNIV OF TECH

Outer containment dome construction method based on spherical strip steel mold-spherical crown wood mold structure

The invention discloses an outer containment dome construction method based on a spherical strip steel mold-spherical crown wood mold structure, and belongs to the technical field of civil construction, and the outer containment dome construction method comprises the following steps: S1, constructing and mounting steel corbels at the inner side position of an outer containment; s2, a ball belt type steel formwork is prefabricated and assembled; s3, hoisting the ball belt type steel template to the outside of the inner containment, and fixing the ball belt type steel template with the steel corbel; s4, outer containment dome reinforcing steel bars are bound on the outer side of the ball belt type steel formwork, and an outer formwork is erected; pouring outer containment dome concrete between the ball belt type steel formwork and the outer formwork in a segmented manner; s5, a scaffold is erected at the spherical crown position outside the inner containment, and a spherical crown type wood formwork is erected; s6, outer containment dome steel bars are bound on the outer side of the spherical crown type wood formwork, and an outer formwork is erected; outer containment dome concrete is poured between the spherical crown type wood formwork and the outer formwork in a segmented mode. The method is high in efficiency, the project progress is optimized, and the working quality is stable and reliable.
Owner:CHINA NUCLEAR IND HUAXING CONSTR

Construction site formwork release agent brushing construction device

The utility model relates to the technical field of engineering formwork construction, in particular to a construction site formwork release agent brushing construction device which comprises a rack, and a power structure, a pressing structure and a formwork brushing structure are arranged on the rack. The power structure comprises a driving roller group, a chain and a motor; the power output end of the motor is connected with the chain and drives the driving roller set to rotate through the chain. The driving roller group can convey a template; the pressing structure is arranged above the driving roller set and can make contact with the upper surface of the template. The mold brushing structure is arranged above the driving roller set and can brush a mold plate with a release agent, conveying power is provided for the mold plate through the power structure, the pressing structure extrudes the mold plate to avoid displacement or shaking when the mold plate is brushed with the release agent, and the mold brushing structure replaces manual work to brush the mold plate in a mechanical mode. And the on-site manual work intensity is greatly reduced.
Owner:CHINA CONSTR ALUMINUM NEW MATERIAL CHENGDU CO LTD

Quick release structure for internal corner mold of prefabricated wall

A quick release structure of a prefabricated wall internal corner mold relates to the technical field of prefabricated building construction and comprises a mold body formed by vertically overlapping and splicing a plurality of box bodies, an auxiliary vibration mechanism and a reinforcing frame are arranged in each box body, the reinforcing frame is connected with a threaded rod extending towards one side of each box body, and the threaded rod is connected with the mold body. The threaded rod penetrates through the side wall of the box body and is provided with a pre-embedded sleeve, the pre-embedded sleeve is pre-embedded at the end part of an outer page of a prefabricated wall body forming the prefabricated wall, the threaded rod is in threaded connection with the pre-embedded sleeve, and a threaded hole for connecting an aluminum template of a cast-in-place wall forming the prefabricated wall is formed in the front end of the box body. According to the utility model, the difficulty of removing the formwork for the internal corner of the prefabricated wall can be greatly reduced, the internal corner forming quality is improved, the working efficiency is improved, and meanwhile, the mold body can be repeatedly used.
Owner:SHANDONG TAIXUN PREFABRICATED CONSTR TECH CO LTD +1

Novel edge constructional column aluminum formwork construction device and construction method

The novel edge constructional column aluminum formwork construction device comprises a support arranged on an upper floor slab and an aluminum alloy formwork, the support is in a cross shape, pulleys are arranged at the two ends and the top of the support, and the novel edge constructional column aluminum formwork construction device further comprises a connecting steel plate arranged on the upper floor slab. The connecting steel plates are respectively welded on the upper surface of the upper floor and the floor wall surface; according to the method for driving the aluminum formwork through the support, in the actual construction process, operability is high, increase and decrease can be conducted according to the site reality, installation is convenient, meanwhile, installation is rapid and convenient, after an external scaffold is dismantled, installation is conducted through a crank arm vehicle in a traditional mode, time and labor are consumed, the installation time of workers can be effectively shortened, applicability is high, and the construction efficiency is improved. Installation and detachment are convenient, construction elevators and other machines and tools can be adopted for transportation upstairs, the requirements for sites and environments are not high, the rubber sealing strips additionally arranged on the two sides of the aluminum formwork can effectively prevent slurry leakage, and the engineering quality and the finished product effect are guaranteed.
Owner:CHINA CONSTRUCTION EIGHTH BUREAU (INNER MONGOLIA) CONSTRUCTION CO LTD

Separating device for synchronous pouring of aluminum formwork constructional column along with main body

The invention discloses a breaking device for an aluminum formwork constructional column synchronously poured along with a main body, and relates to the field of aluminum formwork constructional columns, the breaking device comprises a first aluminum formwork plate and a second aluminum formwork plate, the first aluminum formwork plate and the second aluminum formwork plate are provided with a rapid assembling assembly, the rapid assembling assembly comprises a first L-shaped fixing plate, the first L-shaped fixing plate is in threaded connection with the first aluminum formwork plate, and the second L-shaped fixing plate is in threaded connection with the second aluminum formwork plate. The side wall of the first L-shaped fixing plate is fixedly connected with a first rectangular block, and the first L-shaped fixing plate and the second L-shaped fixing plate can be quickly clamped and disassembled through the arrangement of the quick assembling assembly, so that the first aluminum film plate and the second aluminum film plate can abut against each other and be disassembled, and splicing and separation of the first aluminum film plate and the second aluminum film plate are achieved; and meanwhile, the situation that a traditional first aluminum formwork and a traditional second aluminum formwork are spliced one by one through a large number of pins and opposite-pull screws is avoided, so that the working efficiency that the aluminum formwork constructional column is synchronously poured and separated along with the main body is improved, the complicated steps of mounting and dismounting the pins are omitted, and the construction progress is accelerated.
Owner:CHINA RAILWAY CONSTRUCTION ENGINEERING GROUP

Beam formwork split screw hole positioning device

The utility model discloses a beam formwork opposite-pull screw hole positioning device which comprises a hole opening comparison mechanism arranged between formworks on the two sides, the hole opening comparison mechanism comprises abutting frames arranged on the two sides at intervals, and the abutting frames are used for abutting against the formworks. An upper calibration rod is connected between the abutting frames in a sliding mode, and the upper calibration rod can adjust the height up and down and adjust the distance front and back relative to the abutting frames. The device comprises an upper calibration rod, two ends of the upper calibration rod are respectively and slidably provided with a trepanning alignment target plate structure, each trepanning alignment target plate structure comprises a sliding seat which is slidably connected to the upper calibration rod, two ends of each sliding seat are respectively and fixedly connected with a telescopic adjusting rod, the telescopic adjusting rods are respectively and fixedly connected with a contrast target, and each contrast target is provided with a through hole structure. According to the template trepanning auxiliary device, the technical defect that after a traditional template is erected, the trepanning positions of templates on the two sides cannot be aligned when trepanning is conducted on the templates is effectively overcome, the trepanning mode is high in accuracy and convenient and fast to operate, and the trepanning efficiency is greatly improved.
Owner:AIRPORT CONSTR ENG CO LTD