CN215906860U

CN215906860U - Post-pouring belt of foundation slab and beam

Info

Publication number: CN215906860U
Application number: CN202122279426.3U
Authority: CN
Inventors: 毛坚愈
Original assignee: Shanghai Yangpu Architectural Design Co ltd
Current assignee: Shanghai Yangpu Architectural Design Co ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-02-25
Anticipated expiration: 2031-09-18

Abstract

The application discloses post-cast strip of soleplate, roof beam relates to building engineering technical field, improves the relatively poor problem of current post-cast strip waterproof quality, including soleplate, the post-cast strip has been seted up to soleplate's inside, soleplate is located the center department of post-cast strip below and has seted up the heat preservation mouth, the inside of heat preservation mouth is provided with polystyrene rigid foam, soleplate has inside laid preset reinforcing bar, soleplate has passed the post-cast strip and has laid the bar planting. This application is through the cooperation of predetermineeing groove and bridge type rubber waterstop, prevent leaking of building structure, the infiltration plays the shock attenuation cushioning effect, cooperation through heat preservation mouth and polystyrene rigid foam, it is inseparable to guarantee that the heat preservation mouth seals, play good heat preservation water-proof effects, setting through the wire net piece, it is good with the concrete that waters earlier to ensure the post-cast strip concrete, through the setting of micro-expansion concrete, through the intensity of the inside concrete of post-cast strip of addition improvement of aluminite powder.

Description

Post-pouring belt of foundation slab and beam

Technical Field

The application relates to the technical field of constructional engineering, in particular to a post-cast strip of a foundation slab and a beam.

Background

The post-cast strip is used for preventing harmful cracks possibly generated by cast-in-place reinforced concrete structures due to uneven temperature and shrinkage in building construction, temporary construction joints are reserved at corresponding positions of a foundation slab, a wall and a beam according to design or construction specification requirements, the structures are temporarily divided into a plurality of parts, the construction joints are cast and tamped after a plurality of times through the internal shrinkage of the components, and the structures are connected into a whole.

However, since the existing post-cast strip mainly relies on structural rigidity to prevent harmful cracks, the waterproof quality of the structure is deteriorated.

SUMMERY OF THE UTILITY MODEL

In order to improve the relatively poor problem of current post-cast strip waterproof quality, this application provides a post-cast strip of soleplate, roof beam.

The application provides a post-cast strip of soleplate, roof beam adopts following technical scheme:

a post-cast strip of a foundation slab and a beam comprises the foundation slab, wherein the post-cast strip is arranged inside the foundation slab, a heat-insulating opening is formed in the center of the foundation slab below the post-cast strip, and polystyrene rigid foam is arranged inside the heat-insulating opening;

the foundation slab is laid with preset steel bars inside, and the foundation slab penetrates through the post-cast strip and is laid with planted steel bars.

Through adopting above-mentioned technical scheme, through the cooperation of heat preservation mouth and polystyrene rigid foam, guarantee that the heat preservation mouth seals closely to play good heat preservation water-proof effects, through the setting of bar planting, the whole resistance to compression shear ability of reinforcing structure.

Optionally, a preset groove is formed in the center of the base plate, which is located on the outer side wall of the heat preservation port, and a bridge-type rubber water stop is fixedly installed in the preset groove.

Through adopting above-mentioned technical scheme, through the cooperation of predetermineeing groove and bridge type rubber waterstop, prevent effectively that building structure from leaking, the infiltration plays the shock attenuation cushioning effect.

Optionally, a steel wire mesh is fixedly connected to the top end of one side, close to the post-cast strip, of the foundation slab, micro-expansion concrete is poured inside the post-cast strip, and aluminum powder is added into the micro-expansion concrete before pouring.

By adopting the technical scheme, the post-cast strip concrete and the pre-cast concrete are well connected by the arrangement of the steel wire mesh sheets, and the strength of the concrete in the post-cast strip is higher than that of the foundation slab by the arrangement of the micro-expansion concrete and the addition of the aluminum powder.

Optionally, the base plate and the bottom of the heat preservation port are fixedly connected with a cushion layer.

Through adopting above-mentioned technical scheme, through the setting of bed course, further promote structure resistance to compression ability of shearing.

Optionally, additional steel bars are fixedly connected in the foundation slab and the post-cast strip.

Through adopting above-mentioned technical scheme, guarantee structural wholeness and sturdiness.

Optionally, a reinforcing opening is formed in one side, close to the post-cast strip, of the foundation slab, and reinforcing steel bars are arranged inside the reinforcing opening.

Through adopting above-mentioned technical scheme, through the setting of reinforcement mouth and reinforcement reinforcing bar, prevent that the structure from influencing structural strength because of pouring time and pouring material difference.

In summary, the present application includes at least one of the following benefits:

1. the heat-insulation waterproof bridge has the advantages that through the matching of the preset groove and the bridge-type rubber water stop, water leakage and water seepage of a building structure are effectively prevented, a shock absorption buffering effect is achieved, the close sealing of the heat-insulation port is guaranteed through the matching of the heat-insulation port and the polystyrene rigid foam, and a good heat-insulation waterproof effect is achieved;

2. this application passes through the setting of wire net piece to ensure that post-cast strip concrete is connected well with the concrete of pouring earlier and pounding, through the setting of micro-expansion concrete, ensure through the interpolation of aluminite powder that the intensity of post-cast strip inside concrete is higher than the intensity of soleplate.

Drawings

FIG. 1 is a front cross-sectional structural schematic view of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention.

Description of reference numerals: 1. a foundation slab; 2. post-pouring a belt; 3. a heat preservation port; 4. rigid polystyrene foam; 5. presetting a steel bar; 6. planting bars; 7. presetting a groove; 8. a bridge-type rubber waterstop; 9. a steel wire mesh sheet; 10. micro-expansive concrete; 11. a cushion layer; 12. adding a steel bar; 13. a reinforcing port; 14. and reinforcing the steel bars.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

Referring to fig. 1, a post-cast strip of a foundation slab and a beam, comprising a foundation slab 1, a post-cast strip 2 is provided inside the foundation slab 1, an additional steel bar 12 is fixedly connected inside the foundation slab 1 and the post-cast strip 2, integrity and firmness of the device are further improved by setting the additional steel bar 12, a heat preservation port 3 is provided at a center of the foundation slab 1 below the post-cast strip 2, polystyrene hard foam 4 is filled inside the heat preservation port 3, the polystyrene hard foam 4 can be replaced by a cork wood coated with asphalt, by matching the heat preservation port 3 with the polystyrene hard foam 4, when the post-cast strip 2 is not poured, since the polystyrene hard foam 4 has good flexibility and heat preservation and waterproof performance, the heat preservation port 3 can be ensured to be tightly closed and have a certain heat preservation and waterproof effect, a preset steel bar 5 is laid inside the foundation slab 1, through setting up predetermined reinforcing bar 5, reach the effect of reinforcing structural strength, foundation plate 1 has passed post-cast strip 2 and has laid bar planting 6, and through bar planting 6's setting, the structural connection of guaranteeing post-cast strip 2 and 1 inside new and old concrete of foundation plate is inseparable.

Referring to fig. 1, a reinforcing opening 13 is formed in one side, close to the post-cast strip 2, of the foundation slab 1, a reinforcing steel bar 14 is arranged inside the reinforcing opening 13, and the contact position of the foundation slab 1 and the post-cast strip 2 is connected more tightly through the arrangement of the reinforcing opening 13 and the reinforcing steel bar 14, so that the waterproof performance of the device is guaranteed, and meanwhile, various loads are guaranteed to be borne by the foundation slab 1 and the post-cast strip 2 together.

Referring to fig. 1, the top end of the foundation slab 1 close to one side of the post-cast strip 2 is fixedly connected with a steel wire mesh 9, the steel wire mesh 9 is arranged, when the post-cast strip 2 is constructed, the steel wire mesh 9 does not need to be detached, laitance on the surface of the whole concrete is chiseled carefully before sealing, a rough surface is chiseled, garbage and sundries in the post-cast strip 2 are thoroughly removed, watering and wetting are performed at night, cement paste is laid, micro-expansion concrete 10 is poured into the post-cast strip 2, aluminum powder is added into the micro-expansion concrete 10 before pouring, and the strength of the concrete inside the post-cast strip 2 is higher than that of the foundation slab 1 through the addition of the aluminum powder.

Referring to fig. 1 and 2, the bottom fixedly connected with bed course 11 of soleplate 1 and heat preservation mouth 3, through the setting of bed course 11, when pouring post-cast strip 2, play the sealing effect, and further promote structural integrity, soleplate 1 is located the center department of 3 lateral walls of heat preservation mouth and has seted up predetermined groove 7, it has bridge type rubber waterstop 8 to predetermine fixed mounting in groove 7, through the cooperation of predetermineeing groove 7 and bridge type rubber waterstop 8, after pouring the completion, bridge type rubber waterstop 8 produces elastic deformation under various loads, thereby play firm sealing effect.

The implementation principle of the application is as follows: when the post-cast strip 2 is not poured, the polystyrene hard foam 4 has good flexibility and heat-preservation and waterproof performance, so that the sealing tightness of the heat-preservation port 3 and a certain heat-preservation and waterproof effect can be ensured, the structural connection of the post-cast strip 2 and the new and old concrete in the foundation slab 1 is ensured to be tight through the planting bars 6, when the post-cast strip 2 is poured, the cushion layer 11 plays a role in sealing and further improving the structural integrity, after the pouring is finished, the bridge type rubber waterstop 8 generates elastic deformation under various loads, so that the firm sealing effect is realized, the integrity and the firmness of the device can be further improved through the additional reinforcing steel bars 12, the contact part between the foundation slab 1 and the post-cast strip 2 can be connected more tightly through the reinforcing port 13 and the reinforcing steel bars 14, the waterproof performance of the device is ensured, and meanwhile, various loads are ensured to be jointly borne by the foundation slab 1 and the post-cast strip 2, when the post-cast strip 2 is constructed, the steel wire mesh 9 does not need to be removed, the laitance on the surface of the whole concrete is chiseled off carefully before sealing, the laitance is chiseled into a rough surface, the garbage and the sundries in the post-cast strip 2 are thoroughly removed, watering is carried out overnight for moistening, cement paste is laid, and aluminum powder is added into the micro-expansion concrete 10 before pouring so as to ensure that the strength of the micro-expansion concrete 10 in the post-cast strip 2 is higher than that of the foundation slab 1.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a post-cast strip of soleplate, roof beam, includes soleplate (1), its characterized in that: a post-pouring belt (2) is arranged inside the foundation bottom plate (1), a heat-insulating port (3) is arranged in the center of the foundation bottom plate (1) below the post-pouring belt (2), and polystyrene rigid foam (4) is arranged inside the heat-insulating port (3);

the prefabricated steel bar (5) is laid in the foundation slab (1), and the steel bar planting (6) is laid in the foundation slab (1) after the foundation slab passes through the post-cast strip (2).

2. The foundation slab, beam post-cast strip of claim 1, wherein: the heat preservation port (3) is characterized in that a preset groove (7) is formed in the center of the outer side wall of the heat preservation port (3) of the foundation slab (1), and a bridge-type rubber water stop (8) is fixedly mounted in the preset groove (7).

3. The foundation slab, beam post-cast strip of claim 2, wherein: the foundation slab is characterized in that a steel wire mesh (9) is fixedly connected to the top end of one side, close to the post-pouring belt (2), of the foundation slab (1), micro-expansion concrete (10) is poured into the post-pouring belt (2), and aluminum powder is added into the micro-expansion concrete (10) before pouring.

4. The foundation slab, beam post-cast strip of claim 3, wherein: the bottom of the foundation slab (1) and the bottom of the heat preservation port (3) are fixedly connected with a cushion layer (11).

5. The foundation slab, beam post-cast strip of claim 4, wherein: and additional steel bars (12) are fixedly connected in the foundation slab (1) and the post-cast strip (2).

6. The foundation slab, beam post-cast strip of claim 1, wherein: a reinforcing opening (13) is formed in one side, close to the post-cast strip (2), of the foundation slab (1), and reinforcing steel bars (14) are arranged inside the reinforcing opening (13).