CN218374474U - Precast concrete board post-cast strip structure - Google Patents
Precast concrete board post-cast strip structure Download PDFInfo
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- CN218374474U CN218374474U CN202222135609.2U CN202222135609U CN218374474U CN 218374474 U CN218374474 U CN 218374474U CN 202222135609 U CN202222135609 U CN 202222135609U CN 218374474 U CN218374474 U CN 218374474U
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- precast concrete
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- cast strip
- lateral surface
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Abstract
The utility model discloses a precast concrete board post-cast strip structure, it includes the post-cast strip of reserving between the major structure, the lateral surface in post-cast strip is pasted and is had precast concrete board, precast concrete board's both ends extend to major structure's lateral surface respectively, precast concrete board's lateral surface and the major structure's that is located precast concrete board both ends lateral surface are fixed with wire net, screed-coat, waterproof layer, graphite polyphenyl board and backfill soil in proper order. The utility model discloses carry out waterproofing simultaneously with post-cast strip and major structure, not only construction simple process, construction convenience is swift, and the cost is lower, can satisfy the project that the earthing was backfilled in the urgent need moreover, ensures the engineering time limit for a project. The utility model is suitable for an occasion that the earthing was backfilled is promptly in order to satisfy to skirt room or basement of engineering such as multilayer, frame shear structure.
Description
Technical Field
The utility model relates to a building engineering technical field especially relates to a precast concrete board post-cast strip structure.
Background
In order to prevent the cracks generated by uneven settlement or uneven self shrinkage of a cast-in-place reinforced concrete structure, the concrete structure engineering construction specification specifies that: in order to adapt to the influence of factors such as environmental temperature change, concrete shrinkage and uneven settlement of a structure, a concrete strip which is reserved in structures such as a beam, a plate (including a foundation slab), a wall and the like, has a certain width and is poured after a certain period of time is called a post-pouring strip. And pouring the post-cast strip according to the specified requirements in at least more than 60 days after the construction of each layer of plate after pouring and tamping. The conventional post-cast strip construction process ensures that the main structure can be constructed in a waterproof way after the post-cast strip construction is finished. Therefore, the project which needs to be covered with soil and refilled with soil is delayed seriously, and serious economic loss is caused.
SUMMERY OF THE UTILITY MODEL
The utility model discloses problem to prior art exists with not enough, provide a novel precast concrete board post-cast strip structure, the reduction of construction period reduces economic loss.
The utility model discloses a solve above-mentioned technical problem through following technical scheme:
the utility model provides a precast concrete board post-cast strip structure, its characteristics lie in, it includes the post-cast strip of reserving between the major structure, the lateral surface in post-cast strip is pasted and is had precast concrete board, precast concrete board's both ends extend to major structure's lateral surface respectively, precast concrete board's lateral surface and the major structure's that is located precast concrete board both ends lateral surface are fixed with wire net, screed-coat, waterproof layer, graphite polyphenyl board and backfill soil in proper order.
Preferably, the thickness of the precast concrete plate is not less than 100mm, and the two ends of the precast concrete plate exceed the side line of the post-cast strip by not less than 200mm.
Preferably, the both ends of wire net are fixed on corresponding the major structure through the steel nail, the sideline that the both ends of wire net surpass the post-cast strip is not less than 500mm.
Preferably, a sponge strip with the thickness not less than 5mm is pasted between the precast concrete plate and the main structure.
Preferably, the outside of the backfill soil is at a 45 ° slope.
Preferably, the reinforcement of precast concrete board includes horizontal reinforcing bar and the vertical reinforcing bar of interval setting that the interval set up, diameter 14mm reinforcing bar is selected for use to horizontal reinforcing bar, interval 100mm, diameter 14mm reinforcing bar is selected for use to vertical reinforcing bar, interval 100mm, precast concrete board's top both sides are equipped with the lifting hook, the lifting hook is selected for use reinforcing bar diameter 12mm, precast concrete board and shear wall structure contact side are equipped with the drawknot hook, the drawknot hook is selected for use reinforcing bar diameter 12mm.
On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.
The utility model discloses an actively advance the effect and lie in: the utility model discloses carry out waterproofing simultaneously with post-cast strip and major structure, not only construction simple process, construction convenience is swift, and the cost is lower, can satisfy the project that the earthing was backfilled in the urgent need moreover, ensures the engineering time limit for a project. The utility model is suitable for an occasion that the earthing was backfilled is promptly in order to satisfy to skirt room or basement of engineering such as multilayer, frame shear structure.
Drawings
Fig. 1 is a schematic structural view of a precast concrete slab post-cast strip structure according to a preferred embodiment of the present invention.
Fig. 2 is a reinforcement diagram of a precast concrete slab according to a preferred embodiment of the present invention.
The numbers in the figures are labeled: the method comprises the following steps of 1-main structure, 2-post-cast strip, 3-water-stop steel plate, 4-precast concrete plate, 5-steel wire mesh, 6-leveling layer, 7-waterproof layer, 8-graphite polystyrene plate, 9-backfill soil, 10-sponge strip, 11-main structure main rib, 21-transverse steel bar, 22-longitudinal steel bar, 23-drawknot hook and 24-lifting hook.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the embodiment provides a precast concrete board post-cast strip structure, it includes post-cast strip 2 of reserving between the major structure 1, post-cast strip 2's lateral surface is pasted and is had precast concrete board 4, precast concrete board 4's both ends extend to the lateral surface of major structure 1 respectively, precast concrete board 4's lateral surface and the lateral surface that is located the major structure 1 at precast concrete board 4 both ends are fixed with wire net 5 in proper order, screed-coat 6, waterproof layer 7, graphite polyphenyl board 8 and backfill soil 9, paste the sponge strip 10 that thickness is not less than 5mm between precast concrete board 4 and the major structure 1.
Wherein, the thickness of the precast concrete plate 4 is not less than 100mm, and the two ends of the precast concrete plate 4 exceed the side line of the post-cast strip 2 by not less than 200mm.
The both ends of wire net 5 are fixed on corresponding major structure 1 through the steel nail, the sideline that the both ends of wire net 5 surpass post-cast strip 2 is not less than 500mm.
The outer side of the backfill soil 9 is at a 45-degree gradient.
As shown in fig. 1, in the concrete implementation, the main structures 1 are constructed first, and a post-cast strip 2 with a width of 800mm is reserved between the main structures 1.
As shown in fig. 2, the concrete slab 4 is precast, and the transverse steel bars 21 are steel bars with the diameter of 14mm and the spacing of 100mm; the vertical steel bars 22 are steel bars with the diameter of 14mm and the spacing is 100mm; the thickness of the concrete C30 is 100mm, and the concrete can be hoisted after being maintained until the designed strength is 80%; the top is provided with a lifting hook 24, and 2 lifting hooks are selected from reinforcing steel bars with the diameter of 12 mm; and a pulling hook 23 is arranged on the contact side of the shear wall structure, and the diameter of the steel bar is 12mm, and the number of the positions is 4.
After the main structure 1 is constructed, the precast concrete plate 4 is hoisted to the main structure 1 on two sides of the post-cast strip 2 by using a tower crane and a lifting hook 24. The thickness of the precast concrete plate 4 is 100mm, each side of the precast concrete plate 4 exceeds the sideline of the post-cast strip 2 by 200mm, the drawknot hook 23 is firmly welded with the main structure main rib 11 during installation, and a sponge strip 10 with the thickness not less than 5mm is stuck between the precast concrete plate 4 and the main structure 1 to ensure that a seam is free of a gap; after the precast concrete slab 4 is installed, a layer of steel wire mesh 5 is laid on the outer surface of the precast concrete slab 4, the purpose is to improve the grout hanging property of the precast concrete slab 4 so as to prevent cracks from being formed between concrete of a leveling layer 6 constructed later and the precast concrete slab 4, two sides of the steel wire mesh 5 should exceed the side line 2 of the post-pouring belt by more than 500mm, and the steel wire mesh 4 is fixed on the main structure 1 and the precast concrete slab 4 through steel nails. Because the outer surface of the precast concrete plate 4 is higher than the outer surface of the main structure 1, a leveling layer 6 needs to be constructed on the outer surfaces of the precast concrete plate 4 and the main structure 1 by cement mortar, and when the leveling layer 6 is constructed, a fillet is smeared at the joint of the precast concrete plate 4, the steel wire mesh 5 and the main structure 1 so as to prevent the coiled material of the waterproof layer 7 from being sheared by the side pressure of the non-return filling soil 9. After the construction of the leveling layer 6 is finished and solidified, a waterproof layer 7 is paved on the waterproof coiled material outside the leveling layer 6, then the graphite polystyrene board 8 is firmly bonded outside the waterproof layer by matching adhesive, the effective bonding area is not less than 70% of the area of the polystyrene board 8, finally, the construction of backfilling soil 9 is carried out, and the slope is preferably set at 45 degrees during backfilling. After the backfill soil construction is finished, the post-cast strip does not influence the subsequent construction of the engineering, the concrete pouring construction of the post-cast strip can be carried out after 60 days, the post-cast strip and the main structure are integrated after the concrete pouring of the post-cast strip, and the whole engineering of the post-cast strip is finished.
The utility model discloses required input material equipment all has the commonly used accessory that constructs of price advantage, and this structure construction degree of difficulty is low, and construction safety, quality, progress can obtain better guarantee.
Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are examples only and that the scope of the present invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (6)
1. The utility model provides a precast concrete board post-cast strip structure, its characterized in that, it includes the post-cast strip of reserving between the major structure, the lateral surface in post-cast strip is pasted and is had precast concrete board, precast concrete board's both ends extend to the lateral surface of major structure respectively, precast concrete board's lateral surface and the lateral surface that is located the major structure at precast concrete board both ends are fixed with wire net, screed-coat, waterproof layer, graphite polyphenyl board and backfill soil in proper order.
2. The precast concrete plate post cast strip structure according to claim 1, wherein the precast concrete plate has a thickness of not less than 100mm and both ends of the precast concrete plate are not less than 200mm beyond the side line of the post cast strip.
3. The precast concrete plate post-cast strip structure of claim 1, wherein both ends of the steel wire mesh are fixed to the corresponding main body structures through steel nails, and the edge line of both ends of the steel wire mesh, which exceeds the post-cast strip, is not less than 500mm.
4. The precast concrete plate post-cast strip structure of claim 1, wherein a sponge strip having a thickness of not less than 5mm is adhered between the precast concrete plate and the main structure.
5. The precast concrete slab post cast strip structure according to claim 1, wherein the outer side of the backfill soil is a 45 ° slope.
6. The precast concrete plate post-cast strip structure of claim 1, wherein the reinforcing bars of the precast concrete plate comprise transverse reinforcing bars arranged at intervals and vertical reinforcing bars arranged at intervals, the transverse reinforcing bars are reinforcing bars with the diameter of 14mm and the interval of 100mm, the vertical reinforcing bars are reinforcing bars with the diameter of 14mm and the interval of 100mm, lifting hooks are arranged on two sides of the top of the precast concrete plate and have the diameter of 12mm, and the contact side of the precast concrete plate and the shear wall structure is provided with a pulling hook which has the diameter of 12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222135609.2U CN218374474U (en) | 2022-08-15 | 2022-08-15 | Precast concrete board post-cast strip structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222135609.2U CN218374474U (en) | 2022-08-15 | 2022-08-15 | Precast concrete board post-cast strip structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218374474U true CN218374474U (en) | 2023-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222135609.2U Active CN218374474U (en) | 2022-08-15 | 2022-08-15 | Precast concrete board post-cast strip structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218374474U (en) |
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2022
- 2022-08-15 CN CN202222135609.2U patent/CN218374474U/en active Active
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