3929 results about "Floor slab" patented technology

The invention provides a construction method of a prefabricated multi-ribbed cavity floor, and belongs to the technical field of prefabricated multi-ribbed plate construction. The construction method of the prefabricated multi-ribbed cavity floor comprises the steps of full-hall scaffold building, main keel laying, overall leveling and the like. The construction method comprises the steps that S1, full-hall scaffold building is conducted, specifically, when a full-hall scaffold is built, vertical rods on the upper layer and the lower layer are required to be aligned, the vertical rods are uniformly arranged from the two sides of a cast-in-place ribbed beam, the vertical rods are arranged at the intersection positions of floor elastic bidirectional lines, and scaffold boards are laid under the vertical rods; S2, main keels are laid, specifically, when the main keels are installed, the main keels are required to be arranged in order and not to be inclined, and the two vertical rods at the intersection positions must abut against the main keels; and S3, overall leveling is conducted, specifically, after the main keels are laid, overall leveling is conducted according to control lines, and full-hall scaffold formworks are hoisted on the main keels. The cavity formworks are supported by placing the modularized cavity formworks which are machined and formed in a factory-like mode, and accurate and rapid installation of an upper plate of the prefabricated multi-ribbed plate is achieved by installing limiting square pipes.

The invention discloses an assembly type composite floor slab cast-in-place section span beam joint design method based on digital twinning, and relates to the technical field of intelligent construction, the method comprises the following steps: adopting a least square optimization algorithm to obtain a material performance correction parameter and a geometric compensation parameter; based on the historical material performance correction parameters and the geometric compensation parameters, training the structure model through a genetic algorithm to generate a digital twin reference model; inputting the material performance correction parameters and the geometric compensation parameters into the digital twin reference model, performing multi-scale finite element analysis, and outputting a multi-scale node performance evaluation report; identifying a multi-scale node performance influence factor and a sensitive area by adopting a response surface method, outputting a design parameter sensitivity analysis result, and converting the multi-scale node performance influence factor into a preliminary node design scheme through a design parameter conversion algorithm; according to the method, the real-time accuracy of node design is remarkably improved through least square dynamic parameter correction.

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.

Foldable sleeping basket, characterized in that it comprises: Support rod receptacles (1), wherein two groups of support rod receptacles (1) are provided and arranged at intervals, wherein a plurality of transverse support rods (2) are fixedly connected between the two groups of support rod receptacles (1), and a curved bottom rod (3) is hingedly connected to each of the two end sides of the two groups of support rod receptacles (1); inclined support rods (4), wherein the inclined support rods (4) are arranged in groups of two and are articulated symmetrically to the support rod holder (1), a connecting rod between the inclined support rods (4) and the base rod (3) is articulated on the same end side of the support rod holder (1), and the support rod holder (1) and the inclined support rod (4) on the same end side, the connecting rod and the base rod (3) form a first four-bar linkage; Enclosing rods (5), wherein two groups of enclosing rods (5) are provided and both are bent rods, the two groups of enclosing rods (5) are arranged one-to-one and above the two groups of floor rods (3), the ends of the two groups of enclosing rods (5) are hingedly connected, the upper ends of the inclined support rods (4) are hingedly connected to the enclosing rods (5) on the corresponding side, the two groups of inclined support rods (4) on the same support rod holder (1) and the enclosing rods (5) form a second four-bar linkage, wherein the second four-bar linkage is a control end and is hinged to change the deformation state of the first four-bar linkage; and a handle (6), wherein the handle (6) is hinged to a node point of two groups of the enclosing rods (5).

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.

The invention relates to the technical field of constructional engineering, in particular to a prefabricated large-span reinforced concrete floor capable of being assembled and adjusted. The floor slab comprises a prefabricated reinforced concrete slab with the length extending in the front-back direction, the front side and the rear side of the lower end face of the prefabricated reinforced concrete slab are each provided with a set of lap joint parts extending downwards, and a bottom support assembly fixed to the lower end face of the prefabricated reinforced concrete slab is arranged between the two lap joint parts; the bottom support assembly comprises a plurality of bottom support units which are arranged at intervals in the front-back direction, the bottom support units are symmetrically arranged in the front-back direction with the center of the prefabricated reinforced concrete slab as the center, the lower end of the bottom support unit in the middle is lower than the lower ends of the bottom support units on the two sides, and a prestress inhaul cable is connected between the two lap joint parts. And the lower end of each collet unit is supported and fixed on the prestressed inhaul cable. The bottom support assembly and the prestress inhaul cable are adopted to replace a lower flange and a web, the self weight is light, meanwhile, the lap joint part is arranged, the contact area of the floor and a building structure is increased, stress is reduced, assembling is convenient, and safety is improved.

The invention belongs to the technical field of constructional engineering, and particularly relates to a full-tenon-and-mortise modified gypsum fabricated building component designing and assembling method.The full-tenon-and-mortise modified gypsum fabricated building component comprises beams, columns, wallboards, floors, stairs and door and window frames, the beams and the columns are connected in a tenon-and-mortise mode, and the columns are vertically connected in a tenon-and-mortise mode; a modular steel skeleton node box is connected to the cross intersection node of the column and the beam, the wall plate and the beam are in mortise and tenon connection, the wall plate and the column are in mortise and tenon connection, the wall plate and the floor plate are in plug-in type straight tenon connection, and the wall plate and the door and window frame are in stepped multi-channel sealing mortise and tenon connection; according to the full-tenon-and-mortise modified gypsum fabricated building component, a tenon-and-mortise connection mode is adopted, beams and columns, columns and columns, wallboards and beams, wallboards and columns and the like are tightly engaged through tenon-and-mortise structures, a connection system similar to a traditional wood structure is formed, loads can be effectively transmitted, and the integrity and stability of a building structure are improved.

The invention discloses a tunnel and station integrated structure suitable for a soft soil stratum, which belongs to the technical field of underground stations and comprises a tunnel and a plurality of access passages. Layered floors extending in the longitudinal direction are arranged in the tunnel. The first-layer space comprises station hall sections arranged at intervals in the longitudinal direction. The second-layer space comprises two rail-mounted areas extending in the longitudinal direction, a comprehensive pipe gallery and a platform interval corresponding to the station hall interval. The two rail-mounted areas are arranged on the two transverse sides of the comprehensive pipe gallery correspondingly, and the platform section is arranged on the top of the comprehensive pipe gallery. Each access channel comprises a lifting vertical shaft extending in the vertical direction, and a lifting vertical ladder is arranged in each lifting vertical shaft. The tunnel and station integrated structure suitable for the soft soil stratum can adapt to the geological environment of the soft soil stratum, the excavation range of the ground in the station construction process can be reduced as much as possible, and the safety of the whole station structure and access channels can be guaranteed while the excavation work amount is reduced.

The invention belongs to the technical field of reinforced concrete prefabricated concrete structure manufacturing, and particularly relates to a surface galling device for a concrete prefabricated composite floor slab production line. An electric push rod is mounted on the rack, and a mounting rod is mounted on the electric push rod; a sliding ring and an extrusion bag are alternately installed on the installation rod, a napping knife is installed on the sliding ring, the side faces, making contact with each other, of the sliding ring and the extrusion bag are bonded with each other, a flow guide cavity is formed in the installation rod, and an external expansion medium is fed into or discharged out of the extrusion bag through the flow guide cavity; a protruding strip is arranged on the surface of the mounting rod, a sliding groove is formed in the sliding ring, the sliding groove is matched with the protruding strip, and a rubber layer is mounted on the surface of the napping cutter; the device is simple in structure, the distance between the galling cutters is adjusted through expansion of the extrusion bag, and the difficulty and workload of adjusting the distance between the galling cutters are reduced.

The invention relates to the technical field of floor slab concrete, and discloses aerated concrete applied to sound insulation and heat preservation of a floor slab and a preparation method of the aerated concrete aiming at the problems that an existing sound insulation floor slab containing the aerated concrete is poor in structural stability, namely the sound insulation effect and the long-term effect of mechanical properties are poor and the like. Comprising 30-40 parts of fly ash, 25-35 parts of sand, 15-20 parts of ardealite, 10-15 parts of quick lime, 5-8 parts of silicon-aluminum porous microspheres, 3-5 parts of slaked lime, 1-2 parts of Fe3O4-polypropylene fiber and 0.2-0.5 part of aluminum powder. The preparation method of the silicon-aluminum porous microspheres comprises the following steps: mixing a silicon source, an aluminum source and a surfactant, and uniformly stirring to obtain silicon-aluminum homogenate; and adding nano titanium dioxide, carrying out ultrasonic dispersion and freeze drying, transferring into a heating furnace, and heating and calcining to obtain the silicon-aluminum porous microspheres. The supporting and strengthening effects on pores are realized through gas production reaction and the like in the material, so that the structural strength and durability of the aerated concrete are improved.

The utility model belongs to the technical field of existing building expansion construction, and discloses a pile-to-column reinforcing construction device, which aims to solve the technical problems existing in the prior art that a pile foundation is adopted to form an underground space through downward digging of the pile foundation, and comprises a raft plate arranged on the upper portion of an original pile, and drilling anchoring holes are longitudinally formed in the periphery of the raft plate. Longitudinal load-bearing steel bars are anchored in the drilling anchoring holes and located on the outer side of the original pile, the tops of the longitudinal load-bearing steel bars penetrate through and are fixed to the original bearing platform, columns are arranged on the top of the original bearing platform, formworks are arranged on the peripheries of the longitudinal load-bearing steel bars, pouring pipes are connected to the formworks, and the pouring pipes penetrate through the original floor slab and then are connected with pouring funnels. And a concrete layer is poured between the template and the original pile. By means of the characteristics of a building structure and a high-position pressurization method, pouring of concrete of the enlarged section is improved, the concrete is compacted through the pressure of the concrete, and the phenomenon that pouring of concrete at the bottom of an original bearing platform and a newly-added section is not compact is avoided.

A building assembly system for fabricating a multi-story building is described, wherein the building includes a vertical support core arranged on a base. Lift jacks are arranged between a top portion and a bottom portion of the vertical support core, and a reusable bridle is suspended from the plurality of lift jacks and slidably arranged on the vertical support core. A floor plate is assembled onto the bridle at an assembly level that is proximal to the base. The plurality of the lift jacks are operable to lift the bridle and the assembled floor plate to a design elevation on the vertical support core, and are operable to lower the bridle to the assembly level on the vertical support core after the floor plate has been secured to the vertical support core at the design elevation.

The utility model discloses a combined hollow floor support plate. The combined hollow floor support plate comprises a bottom plate, a box body and a connecting piece, the length of the bottom plate is the span of the floor system, and the width is multiple of a plurality of box bodies; the plurality of box bodies are longitudinally arranged and fixed at intervals on the bottom plate; the box bodies are connected through connecting pieces in the longitudinal direction. And the three components form a combined hollow floor support plate for bearing during floor system construction, and also serve as a template of post-pouring concrete and a bottom surface protection layer of the post-pouring concrete. A plurality of hollow floor bearing plates are transversely and closely spliced and fully paved on floor cover plate spans, gaps among the box bodies are paved with steel bars, concrete is poured later to form bidirectional floor cover ribbed beams, concrete is poured later on the top surfaces of the box bodies to form inter-rib panels, and the building floor cover meeting the using function bearing requirement is formed. The utility model is suitable for medium and large span floor systems, has the advantages of simple manufacture, low cost, no formwork and support, fast and convenient construction, light floor system dead weight, complete bidirectional stress, excellent mechanical property and the like, and meets the key index of'double saving 'of steel bar consumption and concrete consumption compared with the traditional cast-in-place beam slab floor system.

The utility model discloses an assembly type concrete composite floor slab which comprises a bearing prefabricated slab and a connecting prefabricated slab, a plurality of connecting assemblies are arranged on the side, close to the bearing prefabricated slab, of the connecting prefabricated slab, and the connecting assemblies are used for connecting and fixing the bearing prefabricated slab and the connecting prefabricated slab. Height adjusting assemblies are arranged at the two ends of the sides, close to each other, of the bearing prefabricated plate and the connecting prefabricated plate correspondingly, and the height adjusting assemblies are used for adjusting the height of the bearing prefabricated plate and the height of the connecting prefabricated plate and comprise bearing plates. The end, close to the bearing prefabricated plate and the connecting prefabricated plate, of the bearing plate can be clamped to the bearing prefabricated plate and the connecting prefabricated plate, and two supporting through grooves are formed in the top of the end, close to the bearing prefabricated plate and the connecting prefabricated plate, of the bearing plate. The height of a plurality of composite floor slabs can be adjusted under the condition that the rigidity and the bearing capacity of the composite floor slabs are not affected, and practicability is high.

A building block for construction of a building includes a floor and walls. One of the walls includes a recess box. The walls are fixed to the floor and to one another. The floor includes a support made from wood-concrete and defines grooves. A metal armature formed by a plurality of metal rods is arranged in the grooves. At least first metal rods are salient from the ends of the first grooves. A concrete fills the grooves and completely covers the metal armature and the support. The walls are made from wood-concrete and define a vertical groove on their external surface extending over the height of the walls and opening onto the first metal rods salient from the support.

The invention relates to the technical field of ship body parts, in particular to a modularized cabin structure. Comprising a cabin body arranged below a ship body floor and power cabins arranged at the two ends of the cabin body, the cabin body comprises two sets of modular buoyancy cabins which are arranged at intervals, a self-adaptive draught space box is formed between the two sets of modular buoyancy cabins, and the modular buoyancy cabins and the self-adaptive draught space box are detachably connected. Each modular buoyancy bin comprises n unit bins arranged in an array mode, n is larger than or equal to 2, and a buoyancy block is arranged in each unit bin. A stabilizing assembly is arranged in the self-adaptive draught space box. Flexible construction of a site is achieved through modular structure setting, the buoyancy and strength of the ship are ensured through the synergistic effect of all the structures, the ship can not sink even if water enters the ship, meanwhile, the stability of the ship in heavy storm waves is enhanced through installation of the stabilizing assemblies, and the ship is suitable for various types of ships and has extremely high adaptability and safety.

The application relates to the technical field of building engineering, in particular to a mixed lateral force resisting structure system of a residential building, which comprises a transverse support system, a vertical support system and a connecting mechanism, the transverse support system comprises frame beams and full-rib prefabricated floors connected with each other, the frame beams are arranged along the outer edges of the full-rib prefabricated floors; the vertical support system comprises flat columns and composite shear walls, the flat columns are connected with each other at the bottom of the full-rib prefabricated floors, and the frame beams and the full-rib prefabricated floors are both connected with the composite shear walls; the connecting mechanism is used for connecting the transverse support system and the vertical support system. The mixed lateral force resisting structure system of the residential building has the technical effects of improving the bearing capacity and stability of the mixed lateral force resisting structure system of the residential building, facilitating construction and wiring and the like.

The utility model relates to the technical field of pipeline connecting devices, and discloses a novel building water supply and drainage pipeline connecting device which comprises a supporting plate horizontally arranged. The two supporting connecting plates are symmetrically welded to the left side and the right side of the lower portion of the supporting plate; the multiple pipeline supporting frames are arranged at the upper end of the supporting plate in the mode that the horizontal positions can be adjusted, and the pipeline supporting frames are used for supporting and fixing the water supply and drainage pipeline; the connecting rods are symmetrically arranged on the two sides of the supporting plate, and the lower portions of the connecting rods are detachably installed on the supporting connecting plate; the upper portion of the connecting rod is detachably installed at the bottom end of the damping structure, the top end of the damping structure is fixed to the bottom end of the floor, and the damping structure is used for damping the lower structure. According to the utility model, the connection stability can be improved, the use is convenient, the application range is wide, and the installation and use requirements can be better met.

The invention discloses a steel structure truss steel plate laminated slab pouring platform and a construction method, and relates to the technical field of laminated slab pouring construction. The steel structure truss steel plate laminated slab pouring platform comprises a construction platform support which is formed by connecting support transverse rods, support longitudinal rods, support vertical rods and support inclined rods in an inserted mode; the two telescopic support transverse rods and the two support longitudinal rods are connected in an inserted mode to form a rectangular plane frame, and a stable structure which is 30 cm higher than a floor slab is formed. According to the construction platform support, a stable structure is formed through modular inserting connection, the stable structure is erected on a steel beam of the layer, a bent frame does not need to be erected from the bottom layer, and the problems that a traditional bent frame is small in supporting construction space, cross construction is affected, and an overhanging part cannot be erected are solved; the bolts are adjusted to tension the tie bars to enable the truss steel plates to generate preset inverted arches, load deformation during pouring is counteracted, collapse risks caused by non-support pouring are avoided, the problems of steel bar deformation, node damage and the like caused by direct treading on the truss steel plates by constructors are avoided, and the quality and rigidity of floors are guaranteed.

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.

A wall building system includes panels for walls, floors, ceilings, roofs, eaves, and lofts that positively couple together via one or more couplers. The panels may include an insulating core. The one or more couplers incorporate features for receiving plumbing, vents, drains, electrical, coax, CAT5, HVAC, and any other utilities or technology. The panels are designed such that the utilities are concealed until an electrical outlet, drain or water is required, at which time the panel is cut to expose the one or more couplers, which are subsequently cut to reveal a hollow cavity within. The system is aesthetically pleasing and reduces construction time considerably. The system is also extremely energy efficient, fireproof, soundproof, insect proof, virus proof, resists hurricane force winds, is EMP proof, fallout proof, can support a heavy snow load, and is faster to build with and structurally stronger than other construction methods.

To provide an anchoring structure between a non-ferrous reinforcement of a cast-in-place wall balustrade and a floor slab, which has required shear resistance at a joint portion, which prevents stress from concentrating on a bent portion, and which achieves dynamically efficient bar arrangement.SOLUTION: In an anchoring structure between a non-ferrous reinforcement of a cast-in-place wall balustrade 2 and a floor slab (PC floor slab 2), the non-ferrous reinforcement has a diameter equal to or larger than a nominal diameter of a reinforcing bar required in structural design, a bending inner radius of the non-ferrous reinforcement is 2.5 times or more of the bending inner radius of the reinforcing bar, and an anchoring length of the non-ferrous reinforcement is 12 times or more of a diameter of the non-ferrous reinforcement.SELECTED DRAWING: Figure 1

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 invention relates to the technical field of farm house construction, in particular to a farm house construction method based on combined prefabricated wallboards, which comprises the following steps: pre-burying bolts in foundation concrete of an assembly site according to a farm house prediction model, and sequentially mounting steel columns, steel beams and floor support steel to form a steel structure frame; pre-splicing is carried out; a wallboard edge abrasion model is determined, and the splicing hot air temperature is adjusted; determining a wallboard structure stability processing mode according to the stress distribution diagram, wherein the wallboard structure stability processing mode comprises the step of adjusting the dislocation angle of sawteeth at the edge of the wallboard when the wallboard is spliced, or determining the splicing gap width of rock wool in the wallboard according to the maximum heat transfer coefficient; the steel structure frame and the wall plate structure are spliced according to the splicing hot air temperature and the wall plate structure stability treatment mode to form the farm house outer maintenance structure; and the built-in structure is installed on the farm house outer maintenance structure to form the combined farm house. The structure stability and the heat preservation performance of the farm house are improved.

A grout tube system for precast wall panel installation is disclosed, comprising a tubular section, a flared base at one end, and an inlet section at the other. The grout tube is cast into the wall panel to guide starter bars from a floor slab into the tube during installation. The flared base defines a funnel-shaped opening to accommodate misalignment, enhancing safety and installation efficiency. Grout is injected via the inlet section to encapsulate the starter bars, securing the panel to the slab. The funnel may have an elongate cross-section, and the inlet rim lies flush with formwork to prevent concrete ingress.

The invention provides a building electromechanical pipeline modular construction method based on the BIM technology, and relates to the technical field of BIM. The method comprises the steps that comprehensive arrangement of project pipelines is conducted through the BIM technology, adjustment is conducted according to cross collision occurring in the installation process, a support is designed, and support stress is rechecked; the method comprises the following steps of: designing a comprehensive pipeline of a region in BIM software in detail according to nodes, dividing the comprehensive pipeline into electromechanical pipeline installation modules of one unit, and providing a pipeline module three-view; module prefabrication is conducted according to the requirements of a BIM module drawing, after prefabrication is completed, segmented comprehensive electromechanical pipelines are assembled on a manufactured assembly frame, and transportation is conducted after assembly; and an overall installation scheme is planned according to the overall pipeline installation area, the bearing capacity of a floor or a beam is rechecked, and segmented hoisting or lifting and overall module splicing of the pipeline unit modules are carried out. The comprehensive quality and construction safety of the electromechanical pipeline system are improved.

The invention relates to a sinking type toilet reverse ridge shaping formwork and an integrated pouring construction method, and belongs to the field of sinking type toilet and reverse ridge construction. The sinking type toilet reverse ridge shaping formwork is arranged on the two sides of a cast-in-place reverse ridge and supported on a cast-in-place floor side bottom formwork; the device is composed of a cross arm beam, a reverse ridge inner side mold, a reverse ridge outer side mold, a supporting block, a connecting beam and a conical barrel support. The construction method comprises the steps of bottom formwork erecting, conical barrel support manufacturing, positioning and installing, reverse ridge outer side formwork and supporting block installing, cross arm beam and reverse ridge inner side formwork installing, connecting beam installing, integrated concrete pouring, finalization formwork dismantling, conical barrel support dismantling and expansion mortar filling. The two sides of the cast-in-place reverse ridge cross arm beam form a door type fixing structure through the connecting beams, fixing is reliable, stress is stable, the size deviation generated in the vibrating process can be reduced, and the cast-in-place reverse ridge pouring quality is guaranteed. The connecting beams and the cross arm beams respectively adopt an up-and-down overlapping lap joint mode, so that the fight problem caused by cross crossing is effectively avoided.

The invention discloses a prefabricated heat preservation groove type plate floor slab system of an assembly type steel structure trestle, and relates to the technical field of groove type prefabricated heat preservation floor slabs, the prefabricated heat preservation groove type plate floor slab system comprises an anti-skid face plate and a heat preservation bearing mechanism, the heat preservation bearing mechanism is arranged at the bottom of the anti-skid face plate, the heat preservation bearing mechanism comprises a plurality of sealing plates, and the sealing plates are arranged in the anti-skid face plate. The multiple sealing plates are arranged and located at the bottom of the anti-skid panel, multiple second supporting blocks are arranged at the bottoms of the sealing plates, groove-shaped plates are arranged on the outer sides of the multiple second supporting blocks, structural blocks are integrally formed through pouring and extruding, reinforcing strips are arranged on the inner walls of the structural blocks, and the structural blocks and annular hoops form a two-way constraint combined framework which can bear bending moment and shearing force; therefore, the bending resistance, the shearing resistance, the torsional rigidity and the overall bearing capacity of the plate body are improved on the premise that heat preservation is not affected on the whole, the engineering problems are avoided, and normal construction work and construction time are maintained.

The utility model discloses a high-rise building high-altitude large-span overhanging balcony overhanging type formwork supporting device which comprises a balcony body arranged on a first floor slab and a fixing beam arranged on a second floor slab, and the end of the fixing beam is fixedly connected with the second floor slab through a plurality of sets of first fastening bolts. A supporting beam is slidably connected to the fixing beam, a plurality of sets of scaffolds are fixed to the supporting beam, abutting plates are arranged at the tops of the scaffolds, and supporting formworks used for laying the balcony body are arranged on the abutting plates. Through the arrangement of the fixed beam and the supporting beam, the supporting beam can slide relative to the fixed beam, the length of the supporting beam is adjusted, when a wider balcony is constructed, the supporting width is increased by lengthening the length of the supporting beam, the requirement for wider balcony construction is met, and convenience and practicability are achieved.