CN214090002U - Basement outer wall post-cast strip is enclosed construction in advance - Google Patents
Basement outer wall post-cast strip is enclosed construction in advance Download PDFInfo
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- CN214090002U CN214090002U CN202022139875.3U CN202022139875U CN214090002U CN 214090002 U CN214090002 U CN 214090002U CN 202022139875 U CN202022139875 U CN 202022139875U CN 214090002 U CN214090002 U CN 214090002U
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Abstract
The utility model discloses a basement outer wall post-cast strip advanced sealing structure, which comprises a post-cast strip, an outer wall and a steel plate waterstop, wherein a reinforced concrete precast slab is arranged outside the post-cast strip, and two side ends of the reinforced concrete precast slab extend to the outer side of the outer wall; at least one step part is respectively arranged at the two side ends of the reinforced concrete precast slab; the reinforced concrete precast slab is provided with a through lifting hook, the inner end of the lifting hook is connected with the reserved steel bars, and a cement mortar leveling layer, a waterproof layer and a waterproof protective layer are sequentially paved on the outer side of the reinforced concrete precast slab and the outer side of the outer wall from inside to outside. The utility model has the advantages that: the step parts are arranged at the two side ends of the reinforced concrete precast slabs, so that the assembly of the plurality of reinforced concrete precast slabs is facilitated, the volume and the weight of a single reinforced concrete precast slab can be reduced, the construction in a narrow space is facilitated, the construction is more convenient, and the waterproof effect can be ensured by integrally laying the waterproof layer and the waterproof protective layer.
Description
Technical Field
The utility model relates to a construction technical field specifically indicates a basement outer wall post-cast strip enclosed construction in advance.
Background
At the current construction site, the sequence of the basement exterior wall construction generally comprises basement exterior wall pouring, basement exterior wall form removal, basement exterior wall post-pouring belt pouring, basement exterior wall waterproof and waterproof protective layer construction, basement foundation pit backfilling and outdoor auxiliary engineering construction; the basement outer wall post-cast strip pouring needs to be carried out after the concrete setting period of the basement outer wall reaches 28 days, so that the construction time of subsequent procedures is greatly prolonged, and great difficulty is caused to on-site material turnover, construction period control and the like.
For some construction sites, the construction site is narrow, the arrangement of the total construction plane is difficult, and the construction organization of the site is greatly influenced, so that the safety civilized construction and the construction period progress of the whole construction site are influenced, and if the basement foundation pit is backfilled in advance by certain measures, the difficulty of the total arrangement of the site construction and the construction organization of the site is greatly relieved. The prior art sets up the prefabricated plate in order to realize closing in advance the post-cast strip outside the post-cast strip usually, but the prefabricated plate volume of this kind of closing in advance usefulness is great now, is unfavorable for the hoist and mount in the narrow and small construction place, in addition, the mode of laying of whole board still has certain infiltration hidden danger.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the problem that the prior post-cast strip pre-closed precast slab is not beneficial to narrow space construction, and provides a pre-closed structure of a post-cast strip of a basement outer wall, which comprises the post-cast strip and outer walls positioned at two sides of the post-cast strip, wherein a steel plate waterstop is arranged between the post-cast strip and the outer walls, a reserved steel bar is arranged in the post-cast strip, a reinforced concrete precast slab is arranged at the outer side of the post-cast strip, and two side ends of the reinforced concrete precast slab extend to the outer side of the outer walls; at least one step part is respectively arranged at the two side ends of the reinforced concrete precast slab; the reinforced concrete precast slab is provided with a through lifting hook, the inner end of the lifting hook is connected with the reserved steel bar, and the outer end of the lifting hook is arranged on the outer side of the reinforced concrete precast slab; a cement mortar leveling layer, a waterproof layer and a waterproof protective layer are sequentially paved on the outer side of the reinforced concrete precast slab and the outer side of the outer wall from inside to outside; and a cement mortar filling layer is filled in a gap formed by the waterproof layer and the step part.
Furthermore, the reinforced concrete precast slabs on the outer sides of the post-cast strip are provided with a plurality of blocks, and the adjacent reinforced concrete precast slabs are spliced through the step parts.
Furthermore, the step parts at the two side ends of each reinforced concrete precast slab are arranged in a staggered manner.
Furthermore, the outer end of the lifting hook is positioned in the cement mortar leveling layer.
Further, the convex-concave corners of the reinforced concrete precast slab and the waterproof protective layer are provided with arc corners with the radius less than or equal to 50 mm.
Further, cement mortar packing layers are filled at the arc corners.
The utility model has the advantages that: the lifting hook is arranged on the reinforced concrete precast slab, so that the lifting hook is convenient to lift, and meanwhile, the lifting hook can be welded with reserved steel bars in a post-cast strip, so that the strength of the integral structure is ensured; the step parts are arranged at the two side ends of the reinforced concrete precast slabs, so that the assembly of the plurality of reinforced concrete precast slabs is facilitated, the volume and the weight of a single reinforced concrete precast slab can be reduced, the construction in a narrow space is facilitated, the construction is more convenient, and the waterproof effect can be ensured by integrally laying the waterproof layer and the waterproof protective layer.
Drawings
Fig. 1 is the utility model discloses the structure schematic diagram after basement outer wall post-cast strip closed structure construction in advance.
Fig. 2 is a schematic structural view of a step portion formed on the reinforced concrete precast slab of fig. 1.
Fig. 3 is a schematic structural view illustrating the splicing of two reinforced concrete precast slabs in fig. 2.
In the figure; an outer wall 1; a steel plate water stop 2; reserving a steel bar 3; post-cast strip 4; a joint 5; a cement mortar packing layer 6; a reinforced concrete precast slab 7; a cement mortar leveling layer 8; a waterproof layer 9; a waterproof protective layer 10; a hook 11; a circular arc angle 12; a step portion 13.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
The basement outer wall post-cast strip advanced sealing structure comprises a post-cast strip 4 and outer walls 1 located on two sides of the post-cast strip 4, a steel plate water stop strip 2 is arranged between the post-cast strip 4 and the outer walls 1, reserved steel bars 3 are arranged in the post-cast strip 4, reinforced concrete precast slabs 7 are arranged on the outer sides of the post-cast strip 4, and two side ends of each reinforced concrete precast slab 7 extend to the outer sides of the outer walls 1; two side ends of the reinforced concrete precast slab 7 are respectively provided with at least one step part 13; the reinforced concrete precast slab 7 is provided with a through lifting hook 11, the inner end of the lifting hook 11 is connected with the reserved steel bar 3, and the outer end of the lifting hook 11 is arranged on the outer side of the reinforced concrete precast slab 7; a cement mortar leveling layer 8, a waterproof layer 9 and a waterproof protective layer 10 are sequentially paved on the outer side of the reinforced concrete precast slab 7 and the outer side of the outer wall 1 from inside to outside; a gap formed by the waterproof layer 9 and the step part 13 is filled with a cement mortar filling layer 6. The reinforced concrete precast slabs 7 at the outer side of the post-cast strip 4 can be provided with a plurality of blocks, and the adjacent reinforced concrete precast slabs 7 are spliced through the step parts 13. That is, only one reinforced concrete precast slab 7 may be arranged outside the post-cast strip 4, or a plate body formed by splicing a plurality of reinforced concrete precast slabs 7 may be arranged outside the post-cast strip. The step parts 13 may also be upper and lower ends of the reinforced concrete prefabricated panels 7, thereby facilitating the stacking of a plurality of reinforced concrete prefabricated panels 7.
The step parts 13 at both side ends of each reinforced concrete precast slab 7 are arranged in a staggered manner. The staggered steps 13 can ensure the structural strength of the single reinforced concrete precast slab 7 to the maximum extent.
The outer end of the lifting hook 11 is positioned in the cement mortar leveling layer 8. The lifting hook 11 is hidden in the cement mortar leveling layer 8, so that the waterproof layer 9 can be conveniently laid, and the water seepage hidden danger can be reduced.
And arc angles 12 with the radius less than or equal to 50 mm are arranged at the positive and negative angles of the reinforced concrete precast slab 7 and the waterproof protective layer 10. The arc angle 12 is filled with a cement mortar packing layer 6. The reserved arc angle 12 is convenient for assembling the reinforced concrete precast slab 7 and filling the cement mortar packing layer 6, thereby improving the integrity and the continuity of the closed structure.
The steps of basement construction by using the closed structure of the embodiment are as follows:
and S1, making a construction scheme or construction measures of the post-cast strip 4 according to the requirements of the design drawing on the post-cast strip of the basement exterior wall, and determining the used materials, the manufacturing sizes and the like of the reinforced concrete precast slab 7 according to the design width and the design style of the post-cast strip 4.
Step S2, manufacturing the reinforced concrete precast slab 7 on the construction site or manufacturing the reinforced concrete precast slab 7 in advance in the manufacturer; during manufacturing, the lifting hook 11 is pre-buried, and the joint 5 convenient for welding or binding is arranged at one end of the lifting hook 11, which is positioned at the inner side of the reinforced concrete precast slab 7.
And step S3, removing the formwork of the basement exterior wall 1 with the setting period meeting the requirement, roughening and cleaning the basement exterior walls 1 on two sides of the post-cast strip 4 after the formwork is removed, and performing rust prevention treatment on the reserved steel bars 3 in the post-cast strip 4.
And step S4, installing the reinforced concrete precast slabs 7 on the outer side of the basement outer wall post-cast strip by adopting a manual or manual matching mechanical mode according to the sizes of the reinforced concrete precast slabs 7, wherein two workers support and stabilize the reinforced concrete precast slabs 7 on the outer side of the basement outer wall 1 during installation, and the other worker welds or binds the reinforced concrete precast slabs 7 on reserved steel bars 3 of the basement outer wall post-cast strip through joints 5 on lifting hooks 11 pre-embedded in the reinforced concrete precast slabs 7 on the inner side of the basement outer wall 1 to finish the initial installation of the reinforced concrete precast slabs 7.
And step S5, paving a construction cement mortar leveling layer 8, a waterproof layer 9 and a waterproof protective layer 10 on the outer side of the initially installed reinforced concrete precast slab 7 in sequence.
And S6, performing basement foundation pit backfilling operation on the outer side of the basement outer wall 1 constructed by the waterproof layer 9 and the waterproof protective layer 10 until the height of the upper end of the waterproof protective layer 10 is lower than 30cm, and repeating the steps S3 to S5 until the basement foundation pit is backfilled to the designed elevation.
And step S7, performing outdoor auxiliary project construction.
And step S8, carrying out side supporting formwork in the basement outer wall post-cast strip, and pouring concrete in the basement post-cast strip 4.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that a person skilled in the art should also recognize that several modifications and decorations can be made without departing from the principle of the present invention, and the protection scope of the present invention is also covered.
Claims (6)
1. The utility model provides a basement outer wall post-cast strip enclosed construction in advance, includes post-cast strip (4) and is located outer wall (1) of post-cast strip (4) both sides, post-cast strip (4) with be equipped with steel sheet waterstop (2) between outer wall (1), its characterized in that: reserved steel bars (3) are arranged in the post-cast strip (4), a reinforced concrete precast slab (7) is arranged on the outer side of the post-cast strip (4), and two side ends of the reinforced concrete precast slab (7) extend to the outer side of the outer wall (1); both side ends of the reinforced concrete precast slab (7) are respectively provided with at least one step part (13); the reinforced concrete precast slab (7) is provided with a through lifting hook (11), the inner end of the lifting hook (11) is connected with the reserved steel bar (3), and the outer end of the lifting hook (11) is arranged on the outer side of the reinforced concrete precast slab (7); a cement mortar leveling layer (8), a waterproof layer (9) and a waterproof protective layer (10) are sequentially paved on the outer side of the reinforced concrete precast slab (7) and the outer side of the outer wall (1) from inside to outside; and a cement mortar filling layer (6) is filled in a gap formed by the waterproof layer (9) and the step part (13).
2. The basement exterior wall post-cast strip early closing structure according to claim 1, characterized in that: the reinforced concrete precast slabs (7) on the outer side of the post-cast strip (4) are provided with a plurality of blocks, and the adjacent reinforced concrete precast slabs (7) are spliced through the step parts (13).
3. The basement exterior wall post-cast strip early closing structure according to claim 2, characterized in that: the step parts (13) at the two side ends of each reinforced concrete precast slab (7) are arranged in a staggered manner.
4. The basement exterior wall post-cast strip early closing structure according to claim 1, characterized in that: the outer end of the lifting hook (11) is positioned in the cement mortar leveling layer (8).
5. The basement exterior wall post-cast strip early closing structure according to claim 1, characterized in that: and arc angles (12) with the radius less than or equal to 50 mm are arranged at the positive and negative angles of the reinforced concrete precast slab (7) and the waterproof protective layer (10).
6. The basement exterior wall post-cast strip early closing structure according to claim 5, wherein: and a cement mortar filling layer (6) is filled at the arc angle (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022139875.3U CN214090002U (en) | 2020-09-26 | 2020-09-26 | Basement outer wall post-cast strip is enclosed construction in advance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022139875.3U CN214090002U (en) | 2020-09-26 | 2020-09-26 | Basement outer wall post-cast strip is enclosed construction in advance |
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| CN214090002U true CN214090002U (en) | 2021-08-31 |
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| CN202022139875.3U Active CN214090002U (en) | 2020-09-26 | 2020-09-26 | Basement outer wall post-cast strip is enclosed construction in advance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114991217A (en) * | 2022-06-28 | 2022-09-02 | 中国建筑第七工程局有限公司 | Basement post-cast strip advanced sealing structure, basement post-cast strip advanced sealing mould and basement post-cast strip advanced sealing construction method |
-
2020
- 2020-09-26 CN CN202022139875.3U patent/CN214090002U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114991217A (en) * | 2022-06-28 | 2022-09-02 | 中国建筑第七工程局有限公司 | Basement post-cast strip advanced sealing structure, basement post-cast strip advanced sealing mould and basement post-cast strip advanced sealing construction method |
| CN114991217B (en) * | 2022-06-28 | 2024-04-26 | 中国建筑第七工程局有限公司 | Structure and die for pre-closing basement post-pouring belt and construction method |
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Effective date of registration: 20221129 Address after: 4F-3, Building A, Future Design Art Center, No.2560 Park Avenue, East New District, Chengdu, Sichuan 610000 (self declared) Patentee after: The First Construction (Sichuan) Co.,Ltd. of China Construction Third Engineering Bureau Patentee after: CHINA CONSTRUCTION THIRD BUREAU FIRST ENGINEERING Co.,Ltd. Address before: 430040, No. 1, Soochow Road, Dongxihu District, Hubei, Wuhan Patentee before: CHINA CONSTRUCTION THIRD BUREAU FIRST ENGINEERING Co.,Ltd. |