CN220705161U - Concrete floor post-cast strip hanging walking template system - Google Patents

Abstract

The utility model relates to a concrete floor post-pouring belt hanging travelling template system. The combined type template supported by the supporting beam is arranged below the post-pouring belt, and the walking lifting device is connected with the supporting beam through a drawknot device penetrating through a reinforcing steel bar net in the post-pouring belt and lifts the combined type template; the drawknot device comprises an embedded sleeve combined with the reinforcing mesh, a pull piece penetrating through the embedded sleeve, a support plate detachably connected with the lower end of the pull piece and supporting the supporting beam, and a walking lifting device. The walking template system disclosed by the utility model has reasonable structural design, solves the problems of the traditional post-pouring strip supporting system, effectively reduces the occupancy rate of the space under the floor, improves the construction efficiency, improves the turnover rate of materials and improves the construction quality.

Description

Concrete floor post-cast strip hanging walking template system

Technical Field

The utility model belongs to the technical field of building construction equipment, and particularly relates to a post-pouring belt hanging walking template system for a concrete floor slab.

Background

In the regional construction process of the ultra-long cast-in-situ reinforced concrete structure, a temporary post-cast strip is arranged as a common construction measure in engineering, so that the problems of uneven settlement and temperature shrinkage stress in the ultra-long reinforced concrete structure are effectively solved. The post-cast strip can be divided into three types according to the setting function: 1) Sedimentation post-cast strip: the settlement difference caused by the differential of foundation conditions and the height difference between the main tower and the skirt house of the high-rise building is solved; 2) Temperature post-cast strip: releasing early temperature stress of concrete, and resisting the temperature stress of the post-cast strip after sealing; 3) Shrink post-cast strip: and releasing early shrinkage deformation of the concrete, and resisting shrinkage deformation of the post-cast strip after sealing. The post-cast strip effectively prevents the problem of cracks caused by uneven shrinkage or uneven settlement of a concrete structure in the building construction process, and has an important effect in a large-span space structure. In the existing standard specification, uncertainty of current practice of post-cast strips is explained in concrete structural design specification (GB 50010-2010), the post-cast strips are effective measures for avoiding shrinkage cracks in the structural construction period, and the post-cast strips can be arranged to properly increase the expansion joint spacing but cannot completely replace the expansion joints. The technical regulations of high-rise building concrete structures (JGJ 3-2010) prescribe the general practice and requirements of post-cast strips, namely' 30-40 m spacing post-cast strips, the bandwidth of 800-1000 mm, overlap joints are adopted for reinforcing steel bars, post-cast strip concrete is poured after 45 days, and the post-cast strips are arranged at the position with smaller stress in the description of the regulations. The above specifications, although all give the practice and construction requirements for post-cast strip, have many problems in the practical engineering application process. At present, a traditional support system combining a key slot type support system and a template square support system is commonly adopted in domestic post-cast strip support systems, the traditional post-cast strip support system and floor slab support systems at two sides of a post-cast strip are synchronously erected, but a template at the post-cast strip and a template support system at two sides of the post-cast strip are disconnected, and the independent state of the template support system at the post-cast strip is ensured. After the beam slab structures on the two sides of the post-cast strip reach curing strength, removing the templates and the supports on the two sides of the floor slab of the post-cast strip, and keeping the original templates and the support system of the post-cast strip still until the concrete pouring curing of the post-cast strip is completed. The post-cast strip has stricter technological and standard requirements in the construction process, and the support system effectively assists casting of the post-cast strip structure, but the current support system still faces the problem of high occupancy rate of building space, and influences the construction efficiency.

The traditional post-cast strip supporting system mainly has the following problems in the construction process: 1) The post-pouring belt independent supporting system has the problems of difficult vehicle traffic, low material transportation rate and high building material occupancy rate due to long-time large-area space occupation. The concrete on two sides is poured after the age reaches 60 days, the concrete on the post-pouring belt is poured for 14 days after the concrete is poured, and structural units on two sides of the post-pouring belt are basically stable after the settlement of the structural units, so that an independent supporting system cannot be removed during construction and maintenance of the post-pouring belt, and the problems that vehicles in the lower space pass difficultly, the material transportation rate is low, the secondary decoration cannot be performed completely, and the occupancy rate of building materials is high (steel pipes, templates, battens and the like) are caused; 2) After the independent support system of the post-cast strip is dismantled, the problem of cracks at the cantilever structure beam slab is caused. When other parts are constructed, the independent supporting system is easy to be dismantled by workers, at the moment, the structural beams at the two sides of the post-cast strip form an overhanging structure, and the structural beams are stressed too much to cause cracking problems due to the existence of stacking at the top plate, so that quality problems such as water seepage and the like are caused; 3) The independent supporting system causes difficult concrete side surface shaving and bottom die garbage cleaning. Before pouring the post-cast strip, the concrete surfaces on two sides of the post-cast strip are required to be shaved and the garbage in the bottom die of the post-cast strip is required to be cleaned, and the traditional post-cast strip supporting system is difficult to shave and chisel the concrete sides and clean the garbage in the bottom die.

In summary, it is necessary to perform an optimization design of a novel post-cast strip construction system to solve the foregoing technical problems.

Disclosure of Invention

The utility model provides a concrete floor post-pouring belt hanging walking template system with reasonable structural design for solving the technical problems in the prior art, solves the problems in the traditional post-pouring belt supporting system, effectively reduces the occupancy rate of the space under the floor under the condition of meeting the supporting construction strength of the post-pouring belt system, enables the space under the floor to be smooth, improves the construction efficiency, shortens the occupation period of building materials, improves the material turnover rate and improves the engineering construction quality.

The utility model adopts the technical proposal for solving the technical problems in the prior art that: the traveling template system comprises traveling rails which are paved on the floor slabs at two sides of the post-pouring belt and extend along the length direction of the post-pouring belt, and traveling lifting devices which move along the traveling rails, wherein a combined template supported by a supporting beam is arranged below the post-pouring belt, and the traveling lifting devices are connected with the supporting beam through a drawknot device penetrating through a reinforcing steel bar net in the post-pouring belt and lift the combined template; the drawknot device comprises an embedded sleeve combined with the reinforcing mesh, a pull piece penetrating through the embedded sleeve, a support plate detachably connected with the lower end of the pull piece and supporting the supporting beam, and a walking lifting device.

Preferably: the walking lifting device comprises a walking truss supported by two supporting legs, a walking assembly with a driving motor is arranged at the lower ends of the supporting legs, the walking assembly is matched with a walking track, a winch is arranged on the walking truss, and a steel wire rope wound and unwound by the winch is connected with the upper end of the pulling piece through a shackle.

Preferably: the winch arranged on the walking truss comprises a first winch and a second winch, a first shackle is arranged at the end part of a first steel wire rope wound and unwound by the first winch, and a second shackle is arranged at the end part of a second steel wire rope wound and unwound by the second winch; the drawknot device is provided with a left drawknot device and a right drawknot device.

Preferably: the walking truss is also provided with a first rope tightener acting on the first steel wire rope and a second rope tightener acting on the second steel wire rope.

Preferably: the combined template comprises a middle template and end templates which are spliced in sequence, wherein the two sides of the middle template are provided with lap joint edges, the two sides of the end templates are provided with supporting edges, the lap joint edges are lapped above the adjacent supporting edges, and the end templates are provided with preformed holes for pull tabs to pass through.

Preferably: the bottom of the middle template is provided with a middle reinforcing rib, and the bottom of the end template is provided with an end reinforcing rib.

Preferably: an upper cross beam is arranged between the walking tracks, the upper cross beam is a length-adjustable cross beam and comprises a middle cross beam, a first extending cross beam and a second extending cross beam which are positioned at two sides of the middle cross beam, connecting holes which extend along the length direction and are arranged at equal intervals are arranged on each cross beam, and the adjacent cross beams are connected by bolts; the supporting beam comprises a plurality of beam sections which are connected in sequence in a spliced mode.

Preferably: the middle cross beam, the first extending cross beam and the second extending cross beam respectively comprise two C-shaped steel arranged in a back direction, and the pull tab passes through a gap between the C-shaped steel; the beam section of the supporting beam comprises two C-shaped steel arranged in a back direction.

Preferably: the pull piece is provided with a left row of strip-shaped wedge holes and a right row of strip-shaped wedge holes, the lengths of the wedge hole monomers of each row of strip-shaped wedge holes are the same, the distances between the wedge hole monomers of each row of strip-shaped wedge holes are the same, the two rows of strip-shaped wedge holes are arranged in a staggered mode, and the strip-shaped wedge holes of the pull piece, which are exposed above the upper cross beam, are internally provided with wedge pieces.

Preferably: the lower end of the pull tab adopts a rotary supporting rod installed by a hinge shaft, a through hole is formed in the middle of the supporting plate, the pull tab downwards passes through the reserved hole and the through hole, and the rotary supporting rod rotates to be in a horizontal state, so that the supporting plate is combined with the lower end of the pull tab.

The utility model has the advantages and positive effects that the utility model provides the concrete floor post-cast strip hanging walking template system with reasonable structural design, and compared with the existing post-cast strip construction supporting system, the utility model has the following advantages:

firstly, the travelling formwork system is combined with a post-pouring belt floor slab in a hanging mode, and an independent supporting system is not required to be established below the post-pouring belt, so that occupation of space below the post-pouring belt is avoided, and the problems that vehicles are difficult to pass, the material transportation rate is low, the occupancy rate of building materials is high, secondary decoration cannot be completely constructed and the like are avoided;

secondly, compared with the existing independent support system below which is easy to dismount by workers, the hanging walking template system is a special construction system, so that the standardization level of post-cast strip construction is improved, the construction efficiency is improved, meanwhile, the problems of insufficient structural strength, cracking, water seepage and the like caused by incorrect operation (such as early dismounting of the support system) of construction workers are avoided, and the construction quality of the post-cast strip is improved;

furthermore, the hanging walking template system solves the problems that the traditional post-pouring belt supporting system is difficult to shave and chisel the side face of the concrete and difficult to clean garbage in the bottom die, and the template system facilitates the shaving and the garbage cleaning operation of the side face of the concrete and the bottom die.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the walking lifting device of FIG. 1;

FIG. 3 is a schematic view of the modular form of FIG. 1 from an upper perspective;

FIG. 4 is a schematic view of the modular form of FIG. 1 from a lower perspective;

FIG. 5 is a schematic view of the structure of the bracing beam, upper beam, and drawknot apparatus of FIG. 1;

FIG. 6 is a schematic view of the upper cross beam of FIG. 1;

FIG. 7 is a schematic view of the drawknot assembly of FIG. 1;

FIG. 8 is a schematic view of the pull tab, wedge tab and rotary die-pin of FIG. 7;

fig. 9 is a schematic view of the construction state structure of the present utility model.

In the figure:

1. a walking rail; 2. a walking lifting device; 2-1, walking truss; 2-2, a first winch; 2-3, a second winch; 2-4, a control box; 2-5, driving a motor; 2-6, a first rope tightener; 2-7, a first steel wire rope; 2-8, a first shackle; 2-9, a second steel wire rope; 2-10, a second shackle; 2-11, a second rope tightener; 2-12, supporting legs; 2-13, a walking assembly; 3. a combined template; 3-1, a middle template; 3-2, overlapping edges; 3-3, end templates; 3-4, supporting the edge; 3-5, reserving holes; 3-6, middle reinforcing ribs; 3-7, end reinforcing ribs; 4. a limiter; 5. a drawknot device; 5-1, wedge-shaped sheets; 5-2, embedding a sleeve; 5-3, pulling-on the piece; 5-4, a supporting plate; 5-5, limiting blocks; 5-6, passing holes; 5-7, a strip-shaped wedge hole; 5-8, rotating the supporting rod; 5-9, a hinge shaft; 6. a top beam; 6-1, a middle cross beam; 6-2, a first extension beam; 6-3, a second extension beam; 7. supporting the cross beam; 8. a reinforcing mesh; 9. and (3) floor slabs.

Detailed Description

In order to further understand the summary, features and advantages of the present utility model, the following examples are set forth in detail.

Referring to fig. 1 and 9, the post-cast concrete slab hanging travelling formwork system comprises a travelling rail 1 paved on the floors 9 on two sides of the post-cast concrete slab and extending along the length direction of the post-cast concrete slab, and two travelling lifting devices 2 moving along the travelling rail 1, wherein a combined formwork 3 supported by a supporting beam 7 is arranged below the post-cast concrete slab, and the travelling lifting devices 2 are connected with the supporting beam 7 through a drawknot device 5 penetrating through a reinforcing steel bar net 8 in the post-cast concrete slab to lift the combined formwork 3.

As shown in the figure, the walking lifting device 2 moves to a proper position along the walking track 1, the supporting beam 7 and the combined form 3 are lifted by the drawknot device 5, the two side edges of the top of the combined form 3 are in abutting contact with the bottom edges of the floor slabs 9 on the two sides, then concrete is poured in the post-pouring zone area, and the concrete is fixedly connected with the reinforcing mesh 8 in a molding way. Because the walking lifting device 2 can shift along the walking track 1, the hanging walking template system is suitable for construction of post-cast strips with large length or overlength, and adopts a section-by-section construction operation mode along the length direction of the post-cast strips.

Referring to fig. 2, it can be seen that:

the walking lifting device 2 comprises a walking truss 2-1 supported by two supporting legs 2-12, a walking assembly 2-13 with a driving motor 2-5 is arranged at the lower end of the supporting legs 2-12, the walking assembly 2-13 is matched with the walking track 1, a winch is arranged on the walking truss 2-1, and the winch is connected with the drawknot device 5. The walking lifting device 2 stops after moving to a proper position along the walking track 1, a winch is started to lift and descend the lower supporting beam 7 and the combined template 3, the combined template 3 is in contact with the floor slab 9 when lifted to a high position, pouring construction can be performed, the supporting beam 7 and the combined template 3 are lowered to the ground after construction, and the combined template 3 is used for construction of the next section after displacement.

The walking components 2-13 at each side comprise a speed reduction driving box and two rollers, the output shafts of the driving motors 2-5 are in butt joint connection with the input shafts of the speed reduction driving box, a speed reduction gear with double output shafts is arranged in the speed reduction driving box, and the two rollers are arranged on the two output shafts. In this embodiment, as shown in fig. 1, two walking rails 1 are respectively installed and fixed on the floor slabs 9 at two sides of the post-cast strip, so that the installation is stable and the accuracy of the installation position is ensured, and the problem of blockage of the walking lifting device 2 is avoided. Moreover, the walking components 2-13 and the walking track 1 should be combined stably and reliably, the problem that the walking lifting device 2 falls down is avoided, the walking track 1 is C-shaped steel, the top edges of the two side plates are bent inwards, the whole walking components 2-13 are located in the inner cavity of the walking track 1, rollers roll along the bottom wall of the walking track 1 to move, the outer profile of the walking components 2-13 is consistent with the profile shape of the upper part of the inner cavity of the walking track 1, the walking track 1 has a guiding function on the movement of the walking components 2-13, and meanwhile, the walking components 2-13 cannot be separated upwards from the inner part of the walking track 1.

In this embodiment, in order to avoid the traveling lifting device 2 from separating from the traveling rail 1 when moving to the end point of the traveling rail 1, a limiter 4 is installed at the end of the traveling rail 1, and the limiter 4 may be a metal stop block with a buffer rubber pad, and the metal stop block is fixedly connected with the traveling rail 1 by a bolt.

In this embodiment, the hoist installed on the walking truss 2-1 includes a first hoist 2-2 and a second hoist 2-3, a first shackle 2-8 is provided at an end of a first wire rope 2-7 wound and unwound by the first hoist 2-2, a second shackle 2-10 is provided at an end of a second wire rope 2-9 wound and unwound by the second hoist 2-3, and the two hoists act synchronously. Correspondingly, the drawknot device 5 is provided with a left drawknot device and a right drawknot device, so that stability in lifting and descending the supporting beam 7 and the combined template 3 can be guaranteed.

In this embodiment, a first rope tensioner 2-6 acting on the first wire rope 2-7 and a second rope tensioner 2-11 acting on the second wire rope 2-9 are also mounted on the walking truss 2-1. The first rope tightener 2-6 and the second rope tightener 2-11 are both used for fixing and releasing a steel wire rope, specifically, the two rope tighteners are selected to be in the form of an existing swing rope tightener, and the structure is as follows: the swinging rope tightener comprises a fixed block with rope grooves and a swinging block with rope grooves, when the swinging block generates swinging motion to clamp the steel wire rope between the fixed block and the swinging block, the clamping and fixing action is generated on the steel wire rope, when the swinging block swings to the side, the steel wire rope is released, and the driving motion of the swinging block can be provided by an electric push rod and the like. The rope tightener is an existing part and is obtained through purchase, and the structure and the function of the rope tightener are not repeated.

A control box 2-4 is also arranged on the walking truss 2-1, and the control box 2-4 provides control functions. Since the control box 2-4 is installed at a high position, a wired remote controller (which is communicatively connected to the control box 2-4 via a long control cable) or a wireless remote controller (which is communicatively connected to the control box 2-4) may be provided to the control box 2-4, and an operator in the field may send an operation instruction to the control box 2-4 via the remote controller, the instruction including the traveling movement of the traveling crane 2 and the operation of the hoist.

Referring to fig. 3, it can be seen that:

the combined template 3 comprises a middle template 3-1 and end templates 3-3 which are spliced in sequence, wherein the end templates 3-3 are positioned between the adjacent middle templates 3-1, the middle template 3-1 is positioned between the adjacent end templates 3-3, and the top surfaces of the middle templates 3-1 and the end templates 3-3 are flush to form a pouring surface of concrete. When the combined form 3 is lifted to a high position, the edges of the two sides of the combined form are abutted against the bottom surfaces of the floor slabs 9 on the two sides of the upper post-pouring strip.

As shown in the figure, overlapping edges 3-2 are provided on both sides of the middle form 3-1, bracing edges 3-4 are provided on both sides of the end form 3-3, the overlapping edges 3-2 overlap over the adjacent bracing edges 3-4, so that the middle form 3-1 is braced by the adjacent two end forms 3-3, and left and right preformed holes 3-5 are provided on the end forms 3-3.

In this embodiment, in order to improve the overall structural strength of the combined form 3, a middle reinforcing rib 3-6 is provided at the bottom of the middle form 3-1, and an end reinforcing rib 3-7 is provided at the bottom of the end form 3-3.

The supporting cross beam 7 is provided with a left part and a right part, and provides supporting function for the combined template 3 above. In this embodiment, the bracing crossbeam 7 includes a plurality of beam sections of concatenation connection in order, and further, the beam section of bracing crossbeam 7 includes two C shaped steel that set up dorsad (i.e. notch orientation both sides), and the C shaped steel tip of beam section is equipped with the connecting hole, adopts connecting plate and bolt to assemble between the adjacent beam section and connects.

Referring to fig. 5, 7 and 8, it can be seen that:

the drawknot device 5 comprises an embedded sleeve 5-2 combined with the reinforcing mesh 8, a pull piece 5-3 penetrating through the embedded sleeve 5-2, a support plate 5-4 detachably connected with the lower end of the pull piece 5-3 and used for supporting the supporting beam 7, and a movable lifting device 2. Wherein, the embedded sleeve 5-2 is used for establishing a channel penetrating the reinforcing steel bar net 8 for the pull piece 5-3, and the embedded sleeve 5-2 is bound and fixed with the reinforcing steel bar net 8. As shown in the figure, the supporting plate 5-4 is a square metal plate, the four corners of the supporting plate are provided with limiting blocks 5-5, the limiting blocks 5-5 are made of angle steel, and the limiting blocks are welded on the supporting plate 5-4. During construction, the supporting beam 7 falls on the supporting plate 5-4 and between the limiting blocks 5-5, and the supporting beam 7 cannot fall off from the supporting plate 5-4 due to the fact that the limiting blocks 5-5 are arranged.

The embedded sleeve 5-2 comprises a straight sleeve body, a water stop ring is arranged on the outer side of the middle of the sleeve body, a plurality of reinforcing rib plates are further arranged on the outer wall of the sleeve body, wherein a central hole of the sleeve body forms a passage through which the pull tab 5-3 passes, the water stop ring is used for generating a water stop effect and effectively preventing leakage problems at the position where the embedded sleeve 5-2 is arranged, the reinforcing rib plates are used for improving the overall structural strength of the embedded sleeve 5-2, meanwhile, the embedded sleeve 5-2 and a reinforcing steel bar net in a post-pouring zone are easy to connect, and the embedded sleeve 5-2 is difficult to loosen in the process of pouring concrete.

In this embodiment, the embedded sleeve 5-2 is an integral injection molding piece, and the sleeve body, the water stop ring and each reinforcing rib plate are integrally injection molded, so that the embedded sleeve 5-2 is used as a consumable in the post-cast strip construction process, and the pull tab 5-3 is reused.

Referring to fig. 6, it can be seen that:

an upper cross beam 6 is arranged between the walking rails 1, and the upper cross beam 6 is a length-adjustable cross beam, so that different post-pouring strip widths can be adapted. The upper cross beam 6 comprises a middle cross beam 6-1, a first extending cross beam 6-2 and a second extending cross beam 6-3 which are positioned at two sides of the middle cross beam, connecting holes which extend along the length direction and are arranged at equal intervals are formed in each cross beam, the adjacent cross beams are connected through bolts, the total length of the upper cross beam 6 can be adjusted and set by adjusting the position of the fixed connection between the adjacent cross beams, as shown in the figure, two ends of the upper cross beam 6 are lapped on the floor slabs 9 at two sides of the post-pouring strip, and the end parts of the upper cross beam 6 are in abutting contact with the walking rails 1 at two sides. It is conceivable that bolts, corner fittings or the like may be used to fix the end of the upper cross beam 6 to the running rail 1.

In this embodiment, the middle cross member 6-1, the first extension cross member 6-2, and the second extension cross member 6-3 each include two C-section steel disposed opposite (i.e., with the notch facing both sides).

As shown in fig. 7 and 8, a plurality of strip-shaped wedge holes 5-7 are formed in the pull tab 5-3 along the length direction, and the pull tab further comprises a wedge piece 5-1 inserted into the strip-shaped wedge holes 5-7, wherein the pull tab 5-3 is penetrated through a gap between the C-shaped steel of the upper cross beam 6 as shown in the figure, the wedge piece 5-1 is inserted into the strip-shaped wedge holes 5-7 exposed out of the upper part of the upper cross beam 6, and the pull tab 5-3 cannot fall off from the upper cross beam 6 after penetrating into the wedge piece 5-1. Because the wedge-shaped sheet 5-1 is wedge-shaped (the top edge is the hypotenuse), more wedge-shaped sheets 5-1 are inserted into the strip-shaped wedge holes 5-7 by knocking, the pull sheet 5-3 can be forced to move upwards further, the combined form 3 hung below is lifted further, and upward pretightening force is applied to the combined form 3, so that the combined form 3 is combined with the floor slabs 9 on two sides of the post-pouring belt more tightly.

The pull piece 5-3 is made of a metal plate, the strip-shaped wedge holes 5-7 are arranged in a left row and a right row on the pull piece 5-3, the wedge hole monomers of each row of the strip-shaped wedge holes 5-7 are identical in length and interval, and the two rows of the strip-shaped wedge holes 5-7 are arranged in a staggered mode. The pull tab 5-3 is processed by laser cutting or the like.

The lower end of the pull tab 5-3 is provided with a rotary supporting rod 5-8 installed by a hinge shaft 5-9, the middle part of the supporting plate 5-4 is provided with a through hole 5-6, the pull tab 5-3 downwards passes through the preformed hole 3-5, the supporting beam 7 and the through hole 5-6, and the rotary supporting rod 5-8 rotates to a horizontal state to combine the supporting plate 5-4 with the lower end of the pull tab 5-3. Specifically, the lower end of the pull tab 5-3 is penetrated by the gap between the C-shaped steel of the bracing cross beam 7.

The wire rope reeled by the windlass is connected with the upper end of the pull tab 5-3 through the shackle. In the embodiment, a connecting hole is arranged at the upper end of the pull piece 5-3, a shaft hole is arranged at the lower end of the pull piece, wherein the connecting hole at the upper end is used for being connected with a shackle of the walking lifting device 2, and the shaft hole is used for being connected with the hinge shaft 5-9. The middle part of the rotary supporting rod 5-8 is fixedly connected with the outer end of the hinge shaft 5-9, the inner end of the hinge shaft 5-9 is positioned in the shaft hole at the lower end, the end part of the hinge shaft 5-9 is provided with a threaded part, and a locking nut is arranged on the threaded part, so that the hinge shaft 5-9 and the lower end of the pull piece 5-3 can be locked and fixed by adopting the locking nut.

The construction process comprises the following steps:

a walking rail 1 is arranged on a floor slab 9, a walking lifting device 2 is arranged between the walking rails 1, and an upper cross beam 6 is arranged at a proper position between the walking rails 1; assembling a supporting beam 7 and a combined template 3 on the ground below the floor 9;

an operator sends a moving instruction to the control box 2-4 through a remote controller, and the walking lifting device 2 walks to move to a proper position and stops; the field operator installs and fixes the embedded sleeve 5-2 of the drawknot device 5 to the set position on the reinforcing mesh 8, then connects the upper end of the drawknot 5-3 of the drawknot device 5 with a steel wire rope through a shackle, then the operator sends a lifting instruction to the control box 2-4 through a remote controller, two winders of the walking lifting device 2 synchronously unreels the steel wire rope, the field operator pulls the drawknot 5-3 to downwards pass through the embedded sleeve 5-2, the steel wire rope continues to be released until the drawknot 5-3 downwards passes through the preformed hole 3-5 of the combined template 3, the gap between C-shaped steel of the supporting beam 7 and the through hole 5-6 on the supporting plate 5-4, and the lower end is adjusted to be horizontal after being penetrated out;

after the operation is carried out, the two walking lifting devices 2 are connected with a supporting beam 7 and a combined template 3 on the ground below the post-pouring belt through a drawknot device 5; then, an operator operates each winch of the two walking lifting devices 2 to synchronously wind the steel wire rope, so that the supporting beam 7 and the combined template 3 are integrally lifted until the edge of the combined template 3 is in abutting contact with the bottoms of the floor slabs 9 at the two sides, and then the rope tightener is controlled to act to fix the steel wire rope; then, the field operators insert the wedge-shaped pieces 5-1 of each drawknot device 5 into the strip-shaped wedge holes 5-7 exposed out of the upper part of the upper beam 6, and the wedge-shaped pieces 5-1 are further inserted into the strip-shaped wedge holes 5-7 through knocking action, so that the beam 7 and the combined form 3 are supported to move upwards in a trace manner continuously, and enough pretightening force is provided between the combined form 3 and the floor 9; pouring concrete in the area of the post-pouring belt;

after the concrete is formed, the field operator removes the wedge-shaped pieces 5-1 of each drawknot device 5, then controls each rope tightener to release the steel wire ropes, and then controls each winch to synchronously release each steel wire rope until the supporting beam 7 and the combined template 3 fall onto the ground; operating a rotary supporting rod 5-8 at the lower end of a pull tab 5-3 to be in a vertical state, operating each winch to synchronously wind the steel wire rope, moving the pull tab 5-3 upwards and finally penetrating through an embedded sleeve 5-2, and then installing matched sealing plugs at the upper end and the lower end of the embedded sleeve 5-2 to seal;

and then the walking lifting device 2 is moved to the next section position, the supporting beam 7 and the combined template 3 correspondingly below are also moved to the next section position, the embedded sleeve 5-2 is arranged on the reinforcing mesh 8, and the steps are repeated to finish the post-cast strip construction of the next section until the construction of the whole post-cast strip is finished.

Claims (10)

1. A concrete floor post-cast strip hanging walking template system is characterized in that: the post-pouring strip comprises a walking track (1) which is paved on a floor slab (9) on two sides of the post-pouring strip and extends along the length direction of the post-pouring strip, and two walking lifting devices (2) which move along the walking track (1), wherein a combined template (3) supported by a supporting beam (7) is arranged below the post-pouring strip, and the walking lifting devices (2) are connected with the supporting beam (7) through a drawknot device (5) penetrating through a reinforcing steel bar net (8) in the post-pouring strip and lift the combined template (3); the drawknot device (5) comprises an embedded sleeve (5-2) combined with the reinforcing mesh (8), a pull piece (5-3) penetrating through the embedded sleeve (5-2), a support plate (5-4) detachably connected with the lower end of the pull piece (5-3) and supporting the supporting beam (7), and a walking lifting device (2).

2. The concrete floor post-cast strip hanging traveling formwork system as claimed in claim 1, wherein: the walking lifting device (2) comprises a walking truss (2-1) supported by two supporting legs (2-12), a walking assembly (2-13) with a driving motor (2-5) is arranged at the lower end of each supporting leg (2-12), the walking assembly (2-13) is matched with the walking track (1), a winch is arranged on the walking truss (2-1), and a steel wire rope reeled by the winch is connected with the upper end of the pulling piece (5-3) through a shackle.

3. The concrete floor post-cast strip hanging traveling formwork system as claimed in claim 2, wherein: the windlass installed on the walking truss (2-1) comprises a first windlass (2-2) and a second windlass (2-3), a first shackle (2-8) is arranged at the end part of a first steel wire rope (2-7) wound and unwound by the first windlass (2-2), and a second shackle (2-10) is arranged at the end part of a second steel wire rope (2-9) wound and unwound by the second windlass (2-3); the drawknot device (5) is provided with a left drawknot device and a right drawknot device.

4. A concrete floor post-cast strip hanging walking template system as claimed in claim 3, wherein: the walking truss (2-1) is also provided with a first rope tightener (2-6) acting on the first steel wire rope (2-7) and a second rope tightener (2-11) acting on the second steel wire rope (2-9).

5. The concrete floor post-cast strip hanging traveling formwork system as claimed in claim 4, wherein: the combined template (3) comprises a middle template (3-1) and end templates (3-3) which are spliced in sequence, wherein lap joint edges (3-2) are arranged on two sides of the middle template (3-1), supporting edges (3-4) are arranged on two sides of the end templates (3-3), the lap joint edges (3-2) are lapped above the adjacent supporting edges (3-4), and preformed holes (3-5) for a pull piece (5-3) to pass through are formed in the end templates (3-3).

6. The concrete floor post-cast strip hanging walking template system of claim 5, wherein: the bottom of the middle template (3-1) is provided with a middle reinforcing rib (3-6), and the bottom of the end template (3-3) is provided with an end reinforcing rib (3-7).

7. The concrete floor post-cast strip hanging traveling formwork system as claimed in claim 6, wherein: an upper cross beam (6) is arranged between the walking rails (1), the upper cross beam (6) is a length-adjustable cross beam and comprises a middle cross beam (6-1), a first extending cross beam (6-2) and a second extending cross beam (6-3) which are positioned at two sides of the middle cross beam, connecting holes which extend along the length direction and are arranged at equal intervals are arranged on each cross beam, and the adjacent cross beams are connected through bolts; the supporting cross beam (7) comprises a plurality of cross beam sections which are connected in a spliced mode in sequence.

8. The concrete floor post-cast strip hanging traveling formwork system as claimed in claim 7, wherein: the middle cross beam (6-1), the first extension cross beam (6-2) and the second extension cross beam (6-3) respectively comprise two C-shaped steel arranged in a back-to-back way, and the pull tab (5-3) passes through a gap between the C-shaped steel; the beam section of the supporting beam (7) comprises two C-shaped steel arranged back to back, and the pull tab (5-3) passes through a gap between the C-shaped steel.

9. The concrete floor post-cast strip hanging walking template system of claim 8, wherein: the pull piece (5-3) is provided with a left row of strip-shaped wedge holes (5-7) and a right row of strip-shaped wedge holes (5-7), the lengths of the wedge hole monomers of each row of strip-shaped wedge holes (5-7) are the same, the distances between the two rows of strip-shaped wedge holes (5-7) are staggered, and the strip-shaped wedge holes (5-7) of the pull piece (5-3) exposed above the upper Fang Hengliang (6) are internally provided with wedge pieces (5-1).

10. The concrete floor post-cast strip hanging walking template system of claim 9, wherein: the lower end of the pull tab (5-3) is provided with a rotary supporting rod (5-8) which is installed by adopting a hinge shaft (5-9), the middle part of the supporting plate (5-4) is provided with a through hole (5-6), the pull tab (5-3) downwards passes through the reserved hole (3-5) and the through hole (5-6) and the rotary supporting rod (5-8) rotates to be in a horizontal state, and the supporting plate (5-4) is combined with the lower end of the pull tab (5-3).