CN219386821U - Cast-in-place concrete hollow floor reinforcing device - Google Patents

Abstract

The utility model discloses a cast-in-place concrete hollow floor reinforcing device, which belongs to the field of constructional engineering and comprises a bottom template, wherein a lower reinforcing steel mesh and an upper reinforcing steel mesh are arranged at the top of the bottom template, transverse and longitudinal rib beams are arranged between the lower reinforcing steel mesh and the upper reinforcing steel mesh, a plurality of core molds are arranged at staggered positions of the transverse and longitudinal rib beams, cross steel plates are arranged at the top and the bottom of the core molds, the cross steel plates and the core molds are fixedly connected with the bottom template through fastening components, and the cross steel plates and elbow reinforcing steel bars can be utilized to reinforce the cast-in-place concrete hollow floor structure, so that buoyancy generated by concrete is effectively resisted when concrete is poured, the core molds cannot be upwards floated by concrete floating force due to lighter dead weight, and the stability and the safety of the integral hollow floor structure are improved.

Description

Cast-in-place concrete hollow floor reinforcing device

Technical Field

The utility model relates to the field of constructional engineering, in particular to a cast-in-place concrete hollow floor reinforcing device.

Background

The hollow floor is a cast-in-situ reinforced concrete hollow floor; also called cast-in-situ hollow floor without beam, and the hollow floor without beam is cast-in-situ after the core mould product is installed. The cast-in-place concrete hollow floor system can solve the limit brought by the net height of floors, and meanwhile, the engineering cost can be saved, and the cast-in-place concrete hollow floor system technology is favored by a plurality of designers.

Based on the above, the present inventors found that: in the pouring process of the cast-in-place concrete hollow floor system, the core mould of the hollow floor system structure generally adopts a hollow structure with an upper buckling structure and a lower buckling structure, the self weight of the structure is lighter, and when the hollow floor system is fixed, the core mould is generally and simply bound on the steel bars of the support frame by adopting iron wires, or the bottom of the core mould is fixedly connected with the support frame by fixing bolts, the fixation of the hollow floor system is unstable, when concrete pouring is carried out, the hollow floor system is influenced by the impact of the concrete pouring, the existing core mould is usually floated up under the action of the buoyancy of the concrete due to the unstable fixation, so that the integral structure of the building is influenced, and the cast-in-place concrete hollow floor system reinforcing device is provided for researching and improving the existing structure so as to achieve the aim of higher practical value.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems existing in the prior art, the utility model aims to provide a cast-in-place concrete hollow floor reinforcing device, which can firmly fix a cross steel plate, a bottom formwork and a core mould by using a fastening component, and simultaneously firmly connect the upper cross steel plate and the lower cross steel plate by using elbow steel bars bypassing an upper steel bar net sheet and a lower steel bar net sheet, so that the cross steel plates can firmly clamp and fix the core mould, the reinforcement of the cast-in-place concrete hollow floor structure is realized, the buoyancy generated by concrete is effectively resisted when the concrete is poured, the core mould cannot be floated by the action of a concrete floating force due to lighter dead weight, and the stability and the safety of the whole hollow floor structure are improved.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a hollow superstructure reinforcing apparatus of cast in situ concrete, includes the die block board, the top of die block board is provided with reinforcing bar net piece and goes up reinforcing bar net piece down, be provided with horizontal longitudinal rib roof beam between reinforcing bar net piece and the last reinforcing bar net piece down, horizontal longitudinal rib roof beam staggered position is provided with a plurality of mandrel, the top and the bottom of mandrel all are provided with the cross steel sheet, cross steel sheet and mandrel pass through fastening assembly and die block board fixed connection, four sides of mandrel all symmetry are provided with two elbow reinforcing bars, the reinforcing bar net piece is walked around down with last reinforcing bar net piece and is connected with the cross steel sheet tip block that corresponds at elbow reinforcing bar both ends.

Further, the lower reinforcing steel bar net piece and the upper reinforcing steel bar net piece are identical in structure, and are vertically and alternately paved by a plurality of reinforcing steel bars and are formed by binding and fixing through binding wires.

Further, the fastening assembly comprises a screw rod and two wing nuts, the two wing nuts are sleeved on the periphery of the screw rod in a threaded mode, and the screw rod penetrates through the core die and is fixedly connected with the bottom of the bottom die plate and the top of the core die respectively through the two wing nuts.

Furthermore, clamping grooves are formed in the positions, corresponding to the cross steel plates, of the top and the bottom of the core mold, and the inner walls of the clamping grooves are in clamping connection with the peripheries of the corresponding cross steel plates.

Furthermore, clamping holes are formed in the four end portions of the cross steel plate, and the clamping holes are in clamping connection with the corresponding elbow ends of the elbow reinforcing steel bars.

Furthermore, the core mold is formed by buckling two hollow mold boxes, and is made of polyethylene polymer materials.

Further, supporting feet are arranged between the bottom template and the lower reinforcing steel mesh, and a cushion block is arranged between the bottom template and the bottom of the core mold.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

according to the scheme, the cross steel plates are firmly fixed with the bottom formwork and the core mould by the fastening assembly, and meanwhile, the upper cross steel plates and the lower cross steel plates are firmly connected by the elbow steel bars which bypass the upper steel bar meshes and the lower steel bar meshes, so that the core mould can be firmly clamped and fixed, the reinforcement of the cast-in-place concrete hollow floor structure is realized, the buoyancy generated by concrete is effectively resisted when the concrete is poured, the core mould cannot be floated by the action of concrete floating force due to lighter dead weight, and the stability and the safety of the whole hollow floor structure are improved.

Drawings

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

FIG. 2 is a schematic diagram of a split structure of the present utility model;

FIG. 3 is a schematic view of a partial structure of the present utility model;

fig. 4 is a schematic view showing the position structure of the core mold according to the present utility model.

The reference numerals in the figures illustrate:

1. a bottom template;

2. a lower reinforcing steel bar net sheet;

3. a reinforcing steel bar net sheet is arranged;

4. transverse and longitudinal rib beams;

5. a core mold; 51. a clamping groove;

6. a cross steel plate; 61. a clamping hole;

7. a fastening assembly; 71. a screw rod; 72. a wingnut;

8. and (5) bending the steel bar.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

Examples:

referring to fig. 1-4, a reinforcing device for a cast-in-place concrete hollow floor comprises a bottom formwork 1, wherein a lower reinforcing steel mesh 2 and an upper reinforcing steel mesh 3 are arranged at the top of the bottom formwork 1, a transverse rib beam 4 and a longitudinal rib beam 4 are arranged between the lower reinforcing steel mesh 2 and the upper reinforcing steel mesh 3, a plurality of core dies 5 are arranged at staggered positions of the transverse rib beam 4, cross steel plates 6 are arranged at the top and the bottom of the core dies 5, the cross steel plates 6 and the core dies 5 are fixedly connected with the bottom formwork 1 through fastening components 7, two elbow reinforcing steel bars 8 are symmetrically arranged on four sides of the core dies 5, two ends of each elbow reinforcing steel bar 8 bypass the lower reinforcing steel mesh 2 and the upper reinforcing steel mesh 3 and are connected with the corresponding end parts of the corresponding cross steel plates 6 in a clamping mode, and in use, the setting of the fastening components 7 can firmly fix the cross steel plates 6 with the bottom formwork 1 and the core dies 5, and the two cross steel plates 6 are tightly connected by the cross steel bars 8 bypassing the upper reinforcing steel mesh 3 and the lower reinforcing steel mesh 2, so that the cross steel plates 6 can firmly fix the core dies 5 in a clamping mode, and the reinforcing the hollow floor structure is completed.

Referring to fig. 2, the lower reinforcing steel bar net sheet 2 and the upper reinforcing steel bar net sheet 3 have the same structure, are vertically staggered and paved by a plurality of reinforcing steel bars and are fixedly formed by binding wires, and when the anti-floating auxiliary effect on the core mold 5 can be achieved by arranging the lower reinforcing steel bar net sheet 2 and the upper reinforcing steel bar net sheet 3, the strength and the anti-seismic and anti-cracking performance of the integral structure can be improved, and meanwhile the core mold 5 can be pressed by the self weight.

Referring to fig. 3, the fastening assembly 7 includes a screw rod 71 and two wing nuts 72, the two wing nuts 72 are screwed on the periphery of the screw rod 71, the screw rod 71 penetrates through the core mold 5 and is fixedly connected with the bottom of the bottom mold plate 1 and the top of the core mold 5 through the two wing nuts 72, when in use, the screw rod 71 penetrates through the center of the core mold 5, the bottom mold plate 1 and the core mold 5 can be fixed through installing and rotating the two wing nuts 72, the fixing firmness of the core mold 5 can be effectively improved, and floating in the concrete pouring process is avoided.

Referring to fig. 4, the top and bottom of the mandrel 5 are provided with clamping grooves 51 corresponding to the positions of the cross steel plates 6, and the inner walls of the clamping grooves 51 are in clamping connection with the outer circumferences of the corresponding cross steel plates 6, so that when in use, the positions of the cross steel plates 6 can be limited by the arrangement of the clamping grooves 51, and the phenomenon of position deviation of the cross steel plates 6 after fixing is avoided, so that the structural stability is reduced.

Referring to fig. 4, the four ends of the cross steel plates 6 are provided with clamping holes 61, the clamping holes 61 are in clamping connection with the corresponding elbow ends of the elbow steel bars 8, and when in use, the two cross steel plates 6 can be pulled and fastened by the elbow steel bars 8 conveniently through the arrangement of the clamping holes 61, so that the stability of installation of the core mold 5 is improved.

Referring to fig. 4, a core mold 5 is formed by buckling two hollow mold boxes, and is made of polyethylene polymer materials, supporting feet are arranged between a bottom mold plate 1 and a lower reinforcing steel bar net piece 2, a cushion block is arranged between the bottom mold plate 1 and the bottom of the core mold 5, when the concrete protection layer with a certain thickness is formed by supporting the bottom of the lower reinforcing steel bar net piece 2 through the supporting feet, and meanwhile, the cushion block is utilized to serve as a supporting pad between the core mold 5 and the bottom mold plate 1, so that the thickness of concrete at the bottom of the core mold 5 can be ensured to play a role in protection.

When in use: firstly, install the die block 1, then place the die block 1 top surface after accomplishing the ligature of lower reinforcing bar net piece 2, and place a plurality of spike and cushion between lower reinforcing bar net piece 2 and die block 1, make between the two can form the protective layer of certain thickness when following concrete placement, then carry out the ligature of horizontal and vertical rib roof beam 4 on lower reinforcing bar net piece 2, card goes into cross steel sheet 6 in the draw-in groove 51 on the top and the bottom of a plurality of mandrel 5 again after accomplishing the ligature, place in horizontal and vertical rib roof beam 4 intersection, and form "worker" font atress structure with the concrete of the upper and lower reason of horizontal and vertical rib roof beam 4, improve its overall structure's intensity, then run through mandrel 71 from mandrel 5 central point position again, make die block 1 and mandrel 5 can be fixed through installing and rotating two wing nuts 72, can effectively improve the fastness of mandrel 5, after the fixing, draw-in the card hole 61 department on corresponding cross steel sheet 6 with the end card of corresponding cross steel sheet 8, stretch two cross steel sheet 6 consolidate, make and pull the die 5 and place the hollow mandrel 5 when installing, thereby can not receive the hollow mandrel 5 and the stability because of the hollow concrete is carried out, can not bear the stability because of the whole stability of the hollow mandrel is improved, and the hollow pile up.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims (7)

1. The utility model provides a hollow superstructure reinforcing apparatus of cast in situ concrete, includes bed die board (1), its characterized in that: the top of die block (1) is provided with reinforcing bar net piece (2) and last reinforcing bar net piece (3), be provided with horizontal and vertical rib roof beam (4) between lower reinforcing bar net piece (2) and the last reinforcing bar net piece (3), horizontal and vertical rib roof beam (4) staggered position is provided with a plurality of mandrel (5), the top and the bottom of mandrel (5) all are provided with cross steel sheet (6), cross steel sheet (6) and mandrel (5) pass through fastening assembly (7) and die block (1) fixed connection, four sides of mandrel (5) all symmetry are provided with two elbow reinforcing bars (8), reinforcing bar net piece (2) and last reinforcing bar net piece (3) and with corresponding cross steel sheet (6) tip block connection are walked around at elbow reinforcing bar (8) both ends.

2. The cast-in-place concrete hollow floor reinforcing device according to claim 1, wherein: the lower reinforcing steel bar net piece (2) and the upper reinforcing steel bar net piece (3) are identical in structure, are vertically and alternately paved by a plurality of reinforcing steel bars and are formed by binding and fixing binding wires.

3. The cast-in-place concrete hollow floor reinforcing device according to claim 1, wherein: the fastening assembly (7) comprises a screw rod (71) and two wing nuts (72), the two wing nuts (72) are sleeved on the periphery of the screw rod (71) in a threaded mode, and the screw rod (71) penetrates through the core die (5) and is fixedly connected with the bottom of the bottom die plate (1) and the top of the core die (5) through the two wing nuts (72) respectively.

4. The cast-in-place concrete hollow floor reinforcing device according to claim 1, wherein: clamping grooves (51) are formed in the positions, corresponding to the cross steel plates (6), of the top and the bottom of the core mold (5), and the inner walls of the clamping grooves (51) are connected with the peripheries of the corresponding cross steel plates (6) in a clamping mode.

5. The cast-in-place concrete hollow floor reinforcing device according to claim 1, wherein: clamping holes (61) are formed in the four end portions of the cross steel plate (6), and the clamping holes (61) are in clamping connection with the elbow ends of the corresponding elbow reinforcing steel bars (8).

6. The cast-in-place concrete hollow floor reinforcing device according to claim 1, wherein: the core mold (5) is formed by buckling two hollow mold boxes, and is made of polyethylene polymer materials.

7. The cast-in-place concrete hollow floor reinforcing device according to claim 1, wherein: the support legs are arranged between the bottom template (1) and the lower reinforcing steel mesh (2), and the cushion block is arranged between the bottom template (1) and the bottom of the core mold (5).