Early sealing measure for top plate settlement post-cast strip

Abstract

The utility model relates to the technical field of constructional engineering, in particular to an advanced sealing measure for a top plate settlement post-cast strip, which comprises a first building top plate and a second building top plate, and a construction joint is arranged between the first building top plate and the second building top plate. Placing tables are poured on the upper surfaces of the first building top plate and the second building top plate and located on the left side and the right side of the construction joint, a supporting top plate is erected on the upper side of the construction joint and located between the placing tables on the two sides, multiple sets of exhaust pipelines are fixedly connected to the upper surface of the supporting top plate, and concrete layers are poured on the upper sides of the supporting top plate and the placing tables; an overburden layer is laid on the upper side of the concrete layer; the post-cast strip can be sealed in advance before settlement is stable, the weight of covering soil is supported, so that the construction period is greatly shortened, the construction efficiency is improved, the provided vent design facilitates permanent sealing operation after later settlement is stable, and the integrity and stability of the structure are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, and particularly relates to a measure for early closing of settlement post-cast strips of roof slabs. Background Technique

[0002] A post-cast strip is a temporary construction joint reserved at corresponding positions of the foundation slab, wall and beam in accordance with design or construction specification requirements to prevent harmful cracks that may occur due to uneven temperature and shrinkage in the cast-in-place reinforced concrete structure during construction. The structure is temporarily divided into several parts, and after the internal shrinkage of the components, the concrete of this construction joint is poured after a certain period of time to connect the structure into a whole. Among them, the post-cast strip of the basement roof slab is generally closed after the settlement is stable after the main structure is capped, and then the subsequent construction is carried out after covering the soil on the top.

[0003] However, in the actual use process, since the settlement stability usually needs to be observed for a long time, and usually the subsequent processes can only be carried out after the post-cast strip is closed and then the soil is covered, the construction period is relatively long. If the post-cast strip is closed in advance, although the construction period can be shortened, the structure may leak water due to the settlement difference of the building.

[0004] Therefore, it is very necessary to invent a measure for early closing of settlement post-cast strips of roof slabs to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a measure for early closing of settlement post-cast strips of roof slabs to solve the problems in the technology that since the settlement stability usually needs to be observed for a long time, and usually the subsequent processes can only be carried out after the post-cast strip is closed and then the soil is covered, the construction period is relatively long. If the post-cast strip is closed in advance, although the construction period can be shortened, the structure may leak water due to the settlement difference of the building.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A measure for early closing of settlement post-cast strips of roof slabs, including a first building roof slab and a second building roof slab, a construction joint is arranged between the first building roof slab and the second building roof slab, placing platforms are poured at positions on the upper surfaces of the first building roof slab and the second building roof slab on the left and right sides of the construction joint, a supporting roof slab is erected at a position between the two placing platforms on the upper side of the construction joint, multiple exhaust pipes are fixedly connected to the upper surface of the supporting roof slab, a concrete layer is poured on the upper sides of the supporting roof slab and the placing platforms, and a soil covering layer is laid on the upper side of the concrete layer.

[0007] By adopting the above technical solution, the supporting roof slab is a steel plate with a thickness of 10 mm. The supporting roof slab is laid on the upper side of the construction joint, and then a concrete layer is poured on the upper side of the supporting roof slab and a soil covering layer is laid. The supporting roof slab and the concrete layer support the soil covering layer. At this time, subsequent construction is carried out on the surface of the soil covering layer. After the settlement is completed, concrete is poured on the lower side of the supporting roof slab to carry out caulking treatment on the construction joint, so as to shorten the construction period while effectively maintaining the integrity of the post-cast strip, avoiding cracks between building structures, and thus avoiding problems such as water seepage.

[0008] Optionally, a filling cushion plate is laid on the upper surface of the first building roof slab at a position to the right of the placing table, and a filling cushion plate is laid on the upper surface of the second building roof slab at a position to the left of the placing table. The left and right sides of the lower surface of the supporting roof slab are respectively erected on the upper sides of the left and right filling cushion plates.

[0009] By adopting the above technical solution, the filling cushion plate is a polytetrafluoroethylene plate with a thickness of 5 mm, which is used to release the relative displacement and settlement of the two sides of the building.

[0010] Optionally, a waterproof layer is laid on the upper surface of the concrete layer.

[0011] By adopting the above technical solution, the waterproof layer improves the waterproof performance of the building and reduces the phenomenon of water leakage.

[0012] Optionally, multiple groups of connecting steel plates are pre-embedded in the middle positions of the right side surface of the first building roof slab and the left side surface of the second building roof slab, and the front and rear groups of connecting steel plates are welded and fixed.

[0013] By adopting the above technical solution, the connecting steel plates are used to improve the structural strength of the concrete after the construction joint is closed.

[0014] Optionally, building closing nets are fixedly connected to the right side surface of the first building roof slab and the left side surface of the second building roof slab.

[0015] By adopting the above technical solution, the closing net improves the stability of the connection between the concrete and the buildings on the left and right sides.

[0016] Optionally, a supporting bottom plate is fixedly connected to the lower side of the construction joint between the first building roof slab and the second building roof slab.

[0017] By adopting the above technical solution, the supporting bottom plate is used to support the concrete poured in the construction joint.

[0018] Optionally, the concrete layer is poured with fine aggregate concrete with a thickness of 100 mm and is reinforced bidirectionally.

[0019] Optionally, the diameter of the exhaust pipe is 100 mm, and the two exhaust pipes are spaced 3 m apart.

[0020] By adopting the above technical solution, the exhaust pipe leads directly to the ground, which is convenient for pouring concrete slurry into the construction joint after the settlement is stable in the later stage.

[0021] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0022] 1. By laying a support top plate on the upper side of the construction joint of the present utility model, then pouring a concrete layer on the upper side of the support top plate and laying a soil covering layer, the post-cast strip can be closed in advance before the settlement is stable, and the weight of the soil covering can be supported, thus greatly shortening the construction period and improving the construction efficiency. At the same time, the setting of multiple exhaust pipes not only facilitates the permanent closing operation after the settlement is stable in the later stage, but also ensures the integrity and stability of the structure, solving the problem that the settlement usually needs to be observed for a long time, and usually the post-cast strip needs to be closed before the soil covering can be carried out and subsequent processes can be carried out, resulting in a long construction period. If the post-cast strip is closed in advance, although the construction period can be shortened, the structure may seep water due to the settlement difference of the building.

[0023] 2. By laying a filling cushion plate on the lower side of the support top plate of the present utility model, the filling cushion plate releases the relative displacement and settlement of the two sides of the building, avoiding the occurrence of problems such as structural water seepage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the overall structural schematic diagram of the present utility model;

[0025] Figure 2 is the internal structural schematic diagram of the construction joint of the present utility model;

[0026] Figure 3 is for the present utility model Figure 1 longitudinal sectional structural schematic diagram;

[0027] Figure 4 is for the present utility model Figure 1 transverse sectional structural schematic diagram.

[0028] Description of the reference numerals in the drawings:

[0029] 1. First building top plate; 11. Second building top plate; 12. Connecting steel plate; 13. Building closing net; 14. Placing table; 15. Filling cushion plate; 16. Support top plate; 17. Concrete layer; 18. Waterproof layer; 19. Support bottom plate; 110. Exhaust pipe; 111. Soil covering layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further described in detail below with reference to the drawings.

[0031] The present utility model provides as Figures 1 to 4A measure for early closure of the post-cast strip for roof settlement as shown, including the first building roof 1 and the second building roof 11, characterized in that: a construction joint is provided between the first building roof 1 and the second building roof 11, placing platforms 14 are poured on the upper surfaces of the first building roof 1 and the second building roof 11 at positions on both sides of the construction joint, a support roof 16 is erected at the upper side of the construction joint between the two placing platforms 14, multiple exhaust pipes 110 are fixedly connected to the upper surface of the support roof 16, a concrete layer 17 is poured on the upper sides of the support roof 16 and the placing platforms 14, a waterproof layer 18 is laid on the upper surface of the concrete layer 17, a soil covering layer 111 is laid on the upper side of the concrete layer 17, a filling cushion plate 15 is laid on the upper surface of the first building roof 1 at the position on the right side of the placing platform 14, a filling cushion plate 15 is laid on the upper surface of the second building roof 11 at the position on the left side of the placing platform 14, and the left and right sides of the lower surface of the support roof 16 are respectively erected on the upper sides of the left and right filling cushion plates 15.

[0032] Among them, the diameter of the exhaust pipe 110 is 100 mm, and the interval between two groups of exhaust pipes 110 is 3 m; the concrete layer 17 is poured with fine aggregate concrete with a thickness of 100 mm and is reinforced bidirectionally; the support roof 16 is a steel plate with a thickness of 10 mm; the filling cushion plate 15 is a polytetrafluoroethylene plate with a thickness of 5 mm, which is used to release the relative displacement and settlement of the two sides of the building.

[0033] Specifically, during the laying process, after the main structure is capped, the placing platforms 14 are poured on the upper surfaces of the first building roof 1 and the second building roof 11. Then, the filling cushion plates 15 made of polytetrafluoroethylene plates are laid on the upper surfaces of the first building roof 1 and the second building roof 11. Then, the support roof 16 is covered on the upper side of the post-cast strip, and the exhaust pipes 110 are fixed on the upper side of the support roof 16. At this time, taking the support roof 16 as the top formwork, and at the same time, a sealing member is provided at the position where the support roof 16 contacts the placing platform 14 to reduce the phenomenon of water leakage. Next, the concrete layer 17 is poured on the upper side of the support roof 16. Then, the waterproof layer 18 is laid on the upper side of the concrete 17 to further improve the waterproof performance. Next, the soil covering layer 111 is covered on the upper side of the building roof and the upper side of the support roof 16 to achieve the closure of the post-cast strip before the settlement is stable, and then the subsequent construction can be carried out, thus greatly shortening the construction period and improving the construction efficiency.

[0034] Refer to Figure 4 As shown, multiple groups of connecting steel plates 12 are pre-embedded in the middle positions of the right side surface of the first building roof 1 and the left side surface of the second building roof 11, and are fixedly welded between the front and rear two groups of connecting steel plates 12. Building closing meshes 13 are fixedly connected to the right side surface of the first building roof 1 and the left side surface of the second building roof 11. A support bottom plate 19 is fixedly connected to the lower side of the construction joint between the first building roof 1 and the second building roof 11.

[0035] Meanwhile, during the pouring process of the first building roof slab 1 and the second building roof slab 11, connecting steel plates 12 and building closing nets 13 are embedded in the adjacent side surfaces. During the use of the building closing net 13, when concrete is poured behind the formwork, the corner pieces on the mesh are embedded in the concrete, forming a mechanical wedge connected to the adjacent pouring block. The quality of the joint is strictly controlled, and its bonding and shear strength can be comparable to that of well-treated rough stitching. When pouring for the second time, processes such as drilling and roughening can be omitted, which can shorten the construction period and increase the strength of the poured body at the same time.

[0036] In addition, after the ground construction is completed and the building settlement is completed, concrete can be poured into the construction joint through the exhaust pipe 110. After the concrete is poured, the exhaust pipe 110 facilitates the exhaust of the concrete. When the construction is completed, the air vents are sealed, and it can be observed through the exhaust pipe 110 whether the concrete is filled, effectively improving the quality of concrete pouring.

[0037] The working principle of the present utility model: A support roof slab 16 is laid on the upper side of the construction joint, and then a concrete layer is poured on the upper side of the support roof slab 16 and a covering soil layer 111 is laid, which can close the post-cast strip in advance before the settlement is stable and support the weight of the covering soil, thus greatly shortening the construction period and improving the construction efficiency. At the same time, the setting of multiple exhaust pipes 110 not only facilitates the permanent closing operation after the settlement is stable in the later stage, but also ensures the integrity and stability of the structure. A filling cushion plate 15 is laid on the lower side of the support roof slab 16, and the filling cushion plate 15 releases the relative displacement and settlement of the two adjacent buildings, avoiding problems such as structure water seepage.

[0038] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A method for early closure of post-cast strip for roof settlement, comprising a first building roof (1) and a second building roof (11), characterized in that: A construction joint is provided between the first building roof slab (1) and the second building roof slab (11). Placing platforms (14) are cast on the upper surfaces of the first building roof slab (1) and the second building roof slab (11) at positions on both sides of the construction joint. A support roof slab (16) is erected at the upper side of the construction joint between the two placing platforms (14). Multiple exhaust pipes (110) are fixedly connected to the upper surface of the support roof slab (16). A concrete layer (17) is cast on the upper sides of the support roof slab (16) and the placing platforms (14). A soil covering layer (111) is laid on the upper side of the concrete layer (17).

2. The early closing measure for the post-cast strip of roof slab settlement according to claim 1, characterized in that: Filling pads (15) are laid on the upper surface of the first building roof slab (1) at the position to the right of the placing platform (14), and filling pads (15) are laid on the upper surface of the second building roof slab (11) at the position to the left of the placing platform (14). The left and right sides of the lower surface of the support roof slab (16) are respectively erected on the upper sides of the left and right filling pads (15).

3. A method for early closure of the post-cast strip for roof settlement, as claimed in claim 1, characterized in that: A waterproof layer (18) is laid on the upper surface of the concrete layer (17).

4. A method for early closing of the post-cast strip for roof settlement, as claimed in claim 1, wherein: Multiple connecting steel plates (12) are pre-embedded in the middle positions of the right side surface of the first building roof slab (1) and the left side surface of the second building roof slab (11). The front and rear groups of connecting steel plates (12) are fixedly welded together.

5. A method for early closure of the post-cast strip for roof settlement, characterized in that: Building closing meshes (13) are fixedly connected to the right side surface of the first building roof slab (1) and the left side surface of the second building roof slab (11).

6. The early closure measure for the post-cast strip of roof slab settlement according to claim 1, characterized in that: A support bottom plate (19) is fixedly connected to the lower side of the construction joint between the first building roof slab (1) and the second building roof slab (11).

7. A method for early closure of the post-cast strip for roof settlement, as claimed in claim 1, wherein: The concrete layer (17) is cast with 100 mm thick fine aggregate concrete and is reinforced bidirectionally.

8. A method for early closure of the post-cast strip for roof settlement, according to claim 1, characterized in that: The exhaust pipes (110) have a diameter of 100 mm, and the interval between two groups of exhaust pipes (110) is 3 m.

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