4752results about "Forms/shuttering/falseworks" patented technology

The invention discloses a suspension cable soft platform formwork structure for silo conical shell construction and a construction method, and relates to the technical field of silo conical shell construction.The formwork structure comprises a suspension cable net system, a formwork supporting system and an intelligent monitoring system.The suspension cable net system comprises main cables and auxiliary cables which are orthogonally arranged; the main cables are radially distributed along the silo top of the silo body, and the auxiliary cables are annularly arranged along the silo top of the silo body in a closed mode. The formwork supporting system comprises an auxiliary scaffold board and a full supporting frame which are arranged in the suspension cable net system, the upper portion of the full supporting frame is of a circular truncated cone structure forming a silo conical shell, a conical shell side wall mold is arranged on the arc face of the circular truncated cone structure, and a conical shell silo top mold is arranged on the upper bottom face of the circular truncated cone structure. The intelligent monitoring system comprises a load sensor and a tilt angle sensor. According to the method, through dynamic coupling of the orthogonal suspension cable net and the modular supporting system and combination of an intelligent monitoring system, precise control over the construction process is achieved, the steel consumption is reduced, the construction period is shortened, and safety and adaptability are improved.

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.

Disclosed in the present application is a cast-in-place prefabricated building formwork component suitable for columns or beams, comprising a columnar formwork and stirrups fixed to the formwork; the upper and lower ends of the formwork are provided with connection fitting parts that fit adjacent formworks; the formwork is defined by steel plates; the stirrups are jointly formed by the steel plates and rod-shaped members fixedly connected to inner side surfaces of the steel plates. In addition, further disclosed in the present application are a cast-in-place prefabricated building shear wall component and a cast-in-place prefabricated building floor slab component. A stress test result proves that structures such as columns and beams formed by the cast-in-place prefabricated building formwork component in the present application can have a better constraint effect on concrete cast inside, and particularly increase a constraint area, thereby improving the overall shear resistance and bearing capacity of buildings, and having great significance for seismic resistance of the buildings in earthquakes.

Systems and methods of installing a fixture into a material are provided. The fixture includes a body and a cover assembly that is removably coupled to the body and configured to move relative to the body once the body has been secured within the material. The cover assembly includes a movable component configured to aid removal of the cover assembly.

A scaffolding crossbar having at least two, in particular at least three crossbar coupling elements at one end. The crossbar coupling elements can be designed to be the same. The crossbar coupling elements are designed preferably in the form of receiving openings. The crossbar coupling elements serve to detachably secure diagonal piece coupling elements. The scaffolding according to the invention, having a scaffolding crossbar of this type, has a diagonal scaffolding piece with a first diagonal piece coupling element at one end and a second diagonal piece coupling element at the other end. The first diagonal piece coupling element can be designed differently from the second diagonal piece coupling element, wherein the crossbar coupling elements are designed preferably for connecting both diagonal piece coupling elements. The scaffolding can thereby be designed such that it is optionally partially or completely particularly torsion resistant.

The utility model relates to a turnover internal corner construction formwork which comprises an angle adjusting rod, rotary connecting plates and steel formworks, the length of the angle adjusting rod can be adjusted, the two ends of the angle adjusting rod are connected with the rotary connecting plates respectively, one side of each rotary connecting plate is provided with a set of steel formworks, and the rotary connecting plates are fixedly connected with the steel formworks. Each steel formwork comprises an L-shaped steel plate, a supporting plate and a fixing plate, the edge of one flange of each L-shaped steel plate in the two sets of steel formworks is hinged through a rotating shaft, the opening ends of the L-shaped steel plates of the two sets of steel formworks face the same side, and the supporting plates and the fixing plates are arranged on the edges of the two flanges of each L-shaped steel plate of each set of steel formworks; the supporting plate and the fixing plate are clamped on the two sides of a flange of the L-shaped steel plate respectively and exceed the edge of the flange of the L-shaped steel plate, and the supporting plate, the L-shaped steel plate and the fixing plate are fixedly connected to form a slot. The internal corner construction quality and the construction progress can be improved, and the internal corner can be repeatedly used.

The invention provides a method for controlling the precision of an inner molded surface of a cast-in-place slab hung below a net rack, and belongs to the technical field of wind tunnel construction.The method comprises the steps that a C-shaped clamping piece and a sensor system are installed on a net rack lower chord, a monitoring network is established, fatigue characteristic data are analyzed through a minimum cut algorithm, and a load imbalance coefficient is calculated; a high-precision adjustable suspender and a prestress adjusting device are installed to construct a dynamic supporting system, a three-level precision compensation mechanism is established to achieve preventive compensation before construction, real-time monitoring compensation in the construction process and corrective compensation after pouring is completed, and multi-target collaborative optimization is achieved through a dynamic adjusting algorithm and a game optimization model. A complete technical system including fatigue point prediction, load redistribution and precision real-time control is formed, and the technical problem that in the construction process of hanging the cast-in-place slab under the net rack, the plane precision control lacks a systematic dynamic adjustment mechanism is solved.

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.

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.

The invention discloses a multi-layer concrete structure construction method based on an embedded support shaped like a Chinese character'tu ', belongs to the technical field of building construction, and solves the problems of overall displacement and out-of-control precision caused by the fact that the bottom of a supporting system is not firmly fixed in traditional multi-layer concrete construction. According to the technical scheme, the method comprises the steps of firstly manufacturing a steel bar welded support shaped like a Chinese character'tu '; pre-burying the support system in lower-layer concrete to serve as a bottom fixing point of a vertical rod of the support system; a supporting system vertical rod is detachably connected with the top of the support; concrete is poured after the formwork is installed and adjusted; cutting the exposed part of the bracket after the concrete is hardened; and repeating the steps to finish multi-layer construction. According to the method, through the rigid pre-embedding and detachable connection design of the support shaped like the Chinese character'tu ', the stability and positioning precision of a supporting system are ensured, and the method is mainly used for rapid and high-precision construction of cast-in-place concrete structures such as high-rise buildings or multi-layer industrial factory buildings.

To provide a plate allowing a placing joint to be lower than GL and capable of improving workability in construction of a foundation.SOLUTION: A plate 10 is constituted so that a placing joint of an outer peripheral surface of a concrete foundation is positioned below a ground line when the concrete foundation is manufactured by double placing method. The plate 10 is fitted to a reinforcement so as to be partially positioned below the ground line.SELECTED DRAWING: Figure 18

The utility model discloses a double-column formwork device at an expansion joint, and belongs to the technical field of building construction, the double-column formwork device at the expansion joint comprises a plurality of column formworks, a concrete pouring cavity is defined by the plurality of column formworks, limiting assemblies are arranged on the outer walls of the column formworks in a surrounding mode, and the limiting assemblies are used for hooping and limiting the column formworks; the extruded sheet is inserted in the middle of the concrete pouring cavity and is used for dividing the concrete pouring cavity into two column pouring cavities; the number of the reinforcing formworks is two, the two reinforcing formworks are arranged on the two opposite sides of the extruded sheet, the second locking pieces are arranged on the two opposite column formworks in a penetrating mode, and the second locking pieces are used for abutting against the reinforcing formworks and extruding the reinforcing formworks to be tightly attached to the extruded sheet. The concrete pouring cavity is divided into the two column pouring cavities through the extruded plate, meanwhile, the extruded plate is reinforced and fixed by matching the reinforcing formwork with the second locking piece, deformation of the extruded plate is greatly reduced, construction is convenient, the formwork dismounting workload is small, and the formwork mounting speed is high.

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.

The utility model discloses an auxiliary tool for plastering a hole facade. The auxiliary tool comprises a supporting piece and a positioning assembly. The positioning assembly comprises a positioning disc, a limiting claw and a locking piece, the supporting piece is in a long strip shape, and the positioning disc is limited to any position on the supporting piece through the locking piece; the limiting claw is arranged on the positioning disc, and the limiting claw is driven to stretch out or retract in the circumferential direction of the supporting piece; the number of the limiting claws is at least two, and the limiting claws are evenly distributed in the circumferential direction of the supporting piece. The device further comprises an auxiliary lantern ring, the auxiliary lantern ring is supported at the preset position of the outer vertical face of the preset hole through the limiting claw, and the problems that the hole construction standardization is poor, and the construction appearance quality is poor can be solved.

The template reinforcing supporting piece comprises a steel plate, sliding grooves are formed in the two ends of the steel plate respectively, and bolts are arranged in the sliding grooves. The steel plate is a galvanized steel plate; the galvanized angle steel is arranged on the upper surface of the steel plate and located between the sliding grooves in the two end parts; the galvanized angle steel is simultaneously arranged on the upper surface and the lower surface of the steel plate; at least three supporting assemblies form a group and surround the outer ring of the formwork in a triangular shape, and all the assemblies are connected and fixed by inserting bolts into the sliding grooves. The special-shaped column formwork fixing device effectively fixes a special-shaped column formwork, avoids unnecessary structural defects, and enables a building to be more attractive and safer.

A clutch for lifting a concrete component, including a toroidal connector, a latch movable relative to the toroidal connector between a disengaged condition and an engaged condition, and a coupler for coupling the toroidal connector to a lifting apparatus, wherein the toroidal connector has a circular seat for sitting upon a circular upper surface of a head of and anchor coupled to the toroidal connector, wherein the circular seat terminates in a radial bearing surface for abutment with a castellation of the anchor.

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.

The utility model relates to a deformation joint supporting device, and belongs to the technical field of deformation joint supporting, the deformation joint supporting device comprises a supporting assembly, the supporting assembly comprises two supporting templates, a double-shaft screw rod, two sets of push rods and two moving blocks, and a top sealing assembly is arranged at the top ends of the two supporting templates; the top sealing assembly comprises two narrow plates, two sleeve plates, two telescopic plates fixedly installed on the opposite walls of the two narrow plates, two supporting blocks fixedly installed at the top ends of the telescopic plates and a splicing structure fixedly installed on the rear sides of the two narrow plates. According to the deformation joint supporting device, by arranging the top sealing assembly, the top ends of the two supporting formworks can be shielded, and the phenomenon that sundries, dust and the like can fall into the space generated between the two supporting formworks, and consequently the interior of a deformation joint needs to be cleaned during follow-up joint filling of the deformation joint is avoided; and the two adjacent supporting assemblies can be stably spliced together, so that the supporting strength of the supporting assemblies can be further improved.

The invention provides a construction method for installing a large-span special-shaped beam curved template system, and belongs to the technical field of building construction. According to the construction method, accurate three-dimensional modeling is conducted on the shape of a special-shaped beam through a special-shaped curved surface parametric modeling algorithm, and material prefabrication is guided; eight oscillation excitation devices and twelve vibration monitoring devices are optimally arranged by using experimental design and a graph theory analysis method to form a dynamic monitoring network, vibration response data are analyzed in real time by using a wavelet transform monitoring algorithm, and the energy ratio of each frequency band is calculated as a quality evaluation index. A game optimization model is established, and according to different ranges of energy ratios, the support spacing is automatically adjusted, a back ridge fixing mode is combined or a supporting system is reinstalled, so that a comprehensive quality assurance system of accurate geometric modeling-dynamic state monitoring-intelligent parameter adjustment is constructed. The technical problem that the installation quality of a large-span special-shaped beam curved template system is difficult to guarantee is solved.

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.

A modular form system for constructing insulated concrete walls comprises spaced apart vertical frame members which include retention structures allowing for the insertion of spaced-apart rows of insulated panels to form an internal cavity into which concrete may be poured. The retention structures may include flanges on the periphery of the frame members and plates positionable in opposition to the flanges. The insulated panels are retained between the flanges and the plates.

A formwork system for a bridge pier configured to support loads associated with bridge pier construction with reduced, or being free of, anchors in the column.

A robotic construction system for use in constructing a structure, the construction system including a base, a boom extending from the base, an articulated delivery head attached proximate an end of the boom, the delivery head including a nozzle configured to deliver a construction material and a controller configured to control movement of the boom and the delivery head to thereby move the nozzle and deliver construction material, wherein the boom moves with a slower dynamic response over larger distances and the delivery head provides a faster dynamic response over smaller distances.

The invention provides a high-speed rail platform canopy anti-falling construction device and method. The device comprises a construction trolley, a concrete formwork and an auxiliary supporting unit. The concrete formwork comprises a canopy formwork and a column formwork; the building trolley and the auxiliary supporting unit are configured to support a canopy formwork; the canopy template comprises a main body template, and a dripping eave template and a beam bottom template which are positioned at the two ends of the main body template; an embedded assembly is arranged on the dripping eave template; one end of the embedded assembly is located in the concrete structure, and the other end of the embedded assembly is connected with the dripping eave formwork. The canopy formwork is fixed in the concrete structure of the canopy body through the pre-embedded assembly, formwork falling caused by abnormity of the auxiliary supporting unit is avoided, and the risk that workers are injured by crashing is eliminated.

This disclosure relates to a wedge for a shoring system. The wedge can include a first side with a first engagement surface and a second side with a second engagement surface. In some examples, the first engagement surface is configured for engaging a drophead of the shoring system, and the second engagement surface is configured for engaging a shore of the shoring system. In examples, the first engagement surface is angled between about 8 degrees and about 12 degrees relative to the second engagement surface.

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.

The floor penetrating sleeve structure comprises an original structural plate, a hole is formed in the original structural plate, a floor penetrating sleeve is arranged in the hole in the original structural plate in a penetrating mode, and a water stop ring connected with the floor penetrating sleeve in a sealed mode is arranged in the middle of the wall of the floor penetrating sleeve in the circumferential direction. The water stop ring is located at the top of the hole and is in sealed connection with the edge of the hole, and the wall of the floor penetrating sleeve is in sealed connection with the inner wall of the hole through a sealing structure. The invention further discloses a construction method of the floor penetrating sleeve structure for post-trepanning construction. The method can be used for quickly and conveniently carrying out post-positioned floor penetrating sleeve construction, and can be widely applied to the field of mechanical and electrical installation of constructional engineering.

The utility model belongs to the technical field of hanging and supporting formwork structures, and particularly relates to a basement roof post-cast strip butterfly-shaped double-spiral hanging and supporting formwork structure which comprises a supporting outer barrel rod and a supporting screw rod connected to the interior of the supporting outer barrel rod, and the top end of the supporting screw rod is connected with a supporting plate. The butterfly-shaped double-spiral type hanging and supporting formwork structure is placed at the position of a crack of a post-cast strip of a basement top plate, then the supporting plate is in contact with the supporting outer barrel rod, the adjusting spiral block is connected to the top end of the supporting outer barrel rod, the limiting ring is connected to the bottom face of the adjusting spiral block, and the bracket rod barrel is connected to the surface of the supporting screw rod. Meanwhile, the bracket supports the steel pipe beam, the supporting plates at the two ends of the bracket are stretched to drive the limiting grooves in the side edges of the supporting plates to slide along the surfaces of the limiting blocks, and then the nuts are screwed on the surfaces of the screws, so that the transverse size of the bracket is conveniently adjusted, and the hanging formwork structure is conveniently suitable for post-cast strip cracks in different environments; and the practicability of the butterfly-shaped double-spiral type suspended formwork structure is improved.

A concrete building formwork for civil engineering comprises a bottom base plate, a combined rectangular frame plate, pressure applying cover plate assemblies and a material pushing assembly and is characterized in that the detachable combined rectangular frame plate is installed on the upper side of the bottom base plate in a clamped mode, and the pressure applying cover plate assemblies are installed on the upper side of the bottom base plate side by side; the combined rectangular frame plate comprises two groove-shaped plates arranged on the periphery and a plurality of clamping straight plates arranged in the middle, the pressing cover plate assembly comprises a groove-shaped portal frame, a pressing push rod, a centralizer and a cover plate, and the material pushing assembly comprises a beam plate, a sliding rail, a sliding block and a groove-shaped material pushing plate. The two beam plates are fixed to the lower sides of webs of the groove-shaped portal frames side by side. The concrete building template for the civil engineering and the using method thereof have the advantages that pressure and temperature parameters can be monitored in a partitioned mode, the pressure and the temperature can be regulated and controlled in real time according to the characteristics of the concrete solidification process, and rapid demolding can be achieved after a concrete floor slab is formed.

The utility model relates to the technical field of building construction, and discloses a linear accelerator wall corner pouring slurry leakage prevention reinforcing structure which comprises a formwork, a lead screw used for supporting is inserted in the middle of the formwork, an inclined rod used for supporting is fixedly installed in the middle of the formwork, and an embedded part is fixedly installed on one side of the inclined rod. A supporting plate used for reinforcing is fixedly installed at the junction of the formworks, and a clamping hoop is fixedly installed on one side of each formwork. According to the wall corner pouring slurry-leakage-proof reinforcing structure for the linear accelerator, through cooperative arrangement of the inclined rods, the embedded parts and the supports, a three-dimensional supporting network is formed in the using process of the device, the device can keep the original position and posture in the pouring process, and through cooperative arrangement of the inclined rods and the embedded parts, the slurry leakage-proof reinforcing structure for wall corner pouring of the linear accelerator is improved. A stable connecting body is formed between the device and the ground, the possibility that the device slides or deviates due to uneven stress is reduced, and an additional supporting point is provided for the device through the arrangement of the support.