Anti-crack bottom plate post-cast strip structure

Abstract

The utility model discloses an anti-crack bottom plate post-cast strip structure and belongs to the technical field of post-cast strip construction.The anti-crack bottom plate post-cast strip structure comprises a concrete cushion layer, a first casting section, a second casting section and a third casting section, the concrete cushion layer is concavely provided with a sinking groove, and two parallel and vertically-arranged isolation steel wire meshes are installed in the sinking groove; the two first pouring sections are located on the sides, away from each other, of the two isolation steel wire meshes correspondingly, the second pouring section and the third pouring section are located between the two isolation steel wire meshes and distributed from bottom to top in the vertical direction, and reinforcing steel bars are arranged on the inner edge of the sinking groove. Two sets of reinforcing steel bars are distributed in the vertical direction, and a plurality of reinforcing steel bars are distributed in each set in the horizontal direction. The post-cast strip structure has the advantages that the structural strength of the second casting section after casting is guaranteed, and then the overall service life of the post-cast strip structure is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of post-cast strip construction, and in particular to a crack-resistant bottom plate post-cast strip structure. Background Art

[0002] Post-cast strips are a temporary construction measure that temporarily divides the structure into several parts by leaving concrete strips at the foundation slab, wall, beam, etc. In this way, after the concrete has completed its internal shrinkage, concrete can be poured at the construction joints to connect the structure as a whole. The effective setting of post-cast strips can eliminate or reduce the additional stress caused by structural deformation or uneven foundation settlement, thereby reducing or preventing the development and growth of cracks.

[0003] The post-cast strip structure in the prior art usually includes a concrete cushion layer, a first pouring section, a second pouring section and a third pouring section, wherein the concrete cushion layer is recessed with a sinking trough, the first pouring section is provided with two sections and is respectively close to the two sides of the top of the concrete cushion layer, the second pouring section and the third pouring section are located between the two sections of the first pouring and are distributed from bottom to top.

[0004] With regard to the above-mentioned prior art, during the construction process, the second pouring section is usually directly formed by pouring concrete after the first pouring section is poured, which is not convenient for ensuring the structural strength of the second pouring section after pouring and affects the overall service life of the post-casting strip structure. Utility Model Content

[0005] In order to ensure the structural strength of the second pouring section after pouring, and further ensure the overall service life of the post-cast strip structure, the present application provides a crack-resistant bottom plate post-cast strip structure.

[0006] The present application provides a crack-resistant floor post-casting strip structure that adopts the following technical solution:

[0007] A crack-resistant base plate post-cast strip structure includes a concrete cushion layer, a first casting section, a second casting section and a third casting section. The concrete cushion layer is recessed with a sinking trough, and two parallel and vertically arranged isolation steel meshes are installed in the sinking trough. The first casting section is provided with two sections and is respectively located on the side away from the two isolation steel meshes. The second casting section and the third casting section are both located between the two isolation steel meshes. The second casting section and the third casting section are distributed from bottom to top in the vertical direction. Reinforcing steel bars are arranged on the inner edge of the sinking trough. The reinforcing steel bars are distributed in two groups along the vertical direction, and each group of the reinforcing steel bars has a plurality of reinforcing steel bars distributed in the horizontal direction.

[0008] By adopting the above technical solution, the setting of the isolation steel wire mesh realizes the separation effect when the first casting section is cast first, which is convenient for forming a stable post-casting space between the two isolation steel wire meshes after the first casting section is cast. After the second casting section is cast between the two isolation steel wire meshes in the sinking trough, the two groups of reinforcing steel bars are located in the formed second casting section, which is beneficial to fully ensure the structural strength of the second casting section after casting, and further beneficial to ensure the overall service life of the post-casting strip structure.

[0009] Optionally, connecting steel bars are further provided in the sinking trough, and two groups of the connecting steel bars are provided corresponding to the reinforcing steel bars. Each group of the connecting steel bars has multiple connecting steel bars distributed along the length direction of the reinforcing steel bars, and each group of the connecting steel bars is fixed to each group of the reinforcing steel bars by binding.

[0010] By adopting the above technical solution, the setting of connecting steel bars is conducive to enhancing the connection strength between two adjacent reinforcing steel bars, ensuring the position stability of the two adjacent reinforcing steel bars during casting, and thus helping to more fully ensure the structural strength after the second casting section is cast.

[0011] Optionally, the connecting steel bar is provided with a plurality of connecting grooves distributed along its length direction, and each of the reinforcing steel bars in each group is located in each connecting groove respectively.

[0012] By adopting the above technical solution, the setting of the connecting groove plays a role in positioning the connecting steel bars and the reinforcing steel bars when they are connected, making it easy to quickly achieve a stable connection between the connecting steel bars and the reinforcing steel bars.

[0013] Optionally, the two groups of connecting steel bars are respectively located on the side away from the two groups of reinforcing steel bars, and the connecting steel bars near the bottom of the sinking trough are fixedly provided with reinforcing ribs, and the reinforcing ribs are provided with two sections and are respectively located at both ends of the length direction of the connecting steel bars, and one end of the two reinforcing ribs respectively extends into the two first casting sections.

[0014] By adopting the above technical solution, the provision of reinforcing ribs is conducive to further ensuring the connection strength between the part located inside the sinking trough after the first pouring section is poured and the part outside the sinking trough, thereby further ensuring the overall structural strength after the post-casting strip is poured.

[0015] Optionally, a fine-tuning component for adjusting the angle of the reinforcing rib is provided between the reinforcing rib and the connecting steel bar.

[0016] By adopting the above technical solution, the fine-tuning component adjusts the angle of the reinforcing ribs, which makes it easy for the reinforcing ribs to be adaptively adjusted according to actual construction needs, and has strong applicability.

[0017] Optionally, the fine-tuning assembly includes a fine-tuning seat, a fine-tuning sleeve and a fine-tuning screw. The fine-tuning seat is rotatably installed on the connecting steel bar, the fine-tuning sleeve is rotatably installed on the fine-tuning seat, the fine-tuning screw is rotatably installed on the reinforcing rib, and one end of the fine-tuning screw is threadedly engaged in the fine-tuning sleeve.

[0018] By adopting the above technical solution, when the fine-tuning sleeve is rotated, the fine-tuning screw drives the reinforcing rib to make slight adjustments in the angular direction due to the cooperation with the thread of the fine-tuning sleeve. The operation is convenient and fast. At the same time, it is convenient to achieve precise adjustment of the reinforcing rib during rotation through the self-locking effect of the fine-tuning sleeve and the fine-tuning screw.

[0019] Optionally, the fine-tuning sleeve is provided with anti-slip textures on the outside.

[0020] By adopting the above technical solution, the provision of the anti-slip pattern makes it easier for the staff to directly apply force or realize the rotation of the fine-tuning sleeve through an external workpiece.

[0021] Optionally, a waterstop steel plate is horizontally arranged between the first casting section and the third casting section, and both sides of the waterstop steel plate in the width direction are respectively located in the first casting section and the third casting section.

[0022] By adopting the above technical solution, the provision of the water-stop steel plate makes it easy to effectively prevent groundwater from penetrating into the post-cast zone, thereby improving the overall waterproof performance of the concrete structure.

[0023] Optionally, a waterproof membrane is provided on the top of the concrete cushion layer.

[0024] By adopting the above technical solution, the provision of waterproof membrane is beneficial to enhancing the waterproof performance of the post-cast strip structure after pouring is completed, and effectively avoiding leakage after pouring of the post-cast strip.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. After the second pouring section is poured between the two isolation steel wire meshes in the sinking trough, the two sets of reinforcing steel bars are located in the formed second pouring section, which is conducive to fully ensuring the structural strength of the second pouring section after pouring, and further conducive to ensuring the overall service life of the post-casting strip structure.

[0027] 2. The setting of connecting steel bars is conducive to enhancing the connection strength between two adjacent reinforcing steel bars, ensuring the position stability of the two adjacent reinforcing steel bars during pouring, and further conducive to more fully ensuring the structural strength after the pouring of the second pouring section.

[0028] 3. The setting of reinforcing ribs is conducive to further ensuring the connection strength between the part located inside the sinking trough after the first pouring section is poured and the part outside the sinking trough, thereby further ensuring the overall structural strength after the post-casting strip is poured. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0030] Description of reference numerals:

[0031] 1. Concrete cushion; 2. First pouring section; 3. Second pouring section; 4. Third pouring section; 5. Sinking trough; 6. Waterproof membrane; 7. Isolation wire mesh; 8. Reinforcement steel bars; 9. Connecting steel bars; 10. Connecting grooves; 11. Reinforcement bars; 12. Fine-tuning seat; 13. Fine-tuning screw; 14. Fine-tuning sleeve; 15. Anti-slip pattern; 16. Waterstop steel plate. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1 This application is described in further detail.

[0033] The present application embodiment discloses a crack-resistant bottom plate post-casting strip structure. Figure 1 The anti-cracking base plate post-casting strip structure includes a concrete cushion layer 1, a first casting section 2, a second casting section 3 and a third casting section 4, wherein the concrete cushion layer 1 is recessed with a sinking groove 5, and the sinking groove 5 is set in an inverted trapezoidal shape with a width dimension gradually decreasing from top to bottom. In order to ensure the waterproof performance of the post-casting strip after final casting, a waterproof membrane 6 is laid on the top of the concrete cushion layer 1.

[0034] A parallel and vertical isolation wire mesh 7 is installed in the sinking trough 5. The first casting section 2 is provided with two sections and is respectively located on the side away from the two isolation wire meshes 7. The setting of the isolation wire mesh 7 plays a role in separating the first casting section 2 during the initial casting, so as to form a stable post-casting space between the two isolation wire meshes 7 after the first casting section 2 is cast.

[0035] The second pouring section 3 and the third pouring section 4 are both located between the two isolating steel wire meshes 7. The second pouring section 3 and the third pouring section 4 are distributed from bottom to top along the vertical direction. In order to fully ensure the structural strength of the second pouring section 3 after pouring, so that the second pouring section 3 is not prone to cracking and leakage after pouring, thereby ensuring the overall service life of the post-cast strip structure, reinforcing steel bars 8 are arranged on the inner edge of the sinking trough 5. There are two groups of reinforcing steel bars 8 distributed along the vertical direction, and each group of reinforcing steel bars 8 has a plurality of reinforcing steel bars evenly distributed along the horizontal direction. In the embodiment of the present application, the distribution direction of the reinforcing steel bars 8 is the x-axis direction, and the length direction of the reinforcing steel bars 8 is the y-axis direction. After the second pouring section 3 is poured, the reinforcing steel bars 8 evenly distributed along the x-axis direction are all located in the second pouring section 3.

[0036] Continue to refer to Figure 1, connecting steel bars 9 are also horizontally arranged in the sinking trough 5. Two groups of connecting steel bars 9 and reinforcing steel bars 8 are arranged correspondingly. Each group of connecting steel bars 9 has multiple connecting steel bars distributed along the y-axis direction, that is, the length direction of the reinforcing steel bars 8. Each connecting steel bar 9 of each group is located on the side away from the two groups of reinforcing steel bars 8, and each connecting steel bar 9 of each group is fixed to each reinforcing steel bar 8 of each group by binding. In order to ensure the stability of the relative position of the connecting steel bar 9 and the reinforcing steel bar 8 when they are bound and fixed, the outer circumference of the connecting steel bar 9 is concavely provided with a plurality of connecting grooves 10 distributed along its own length direction, that is, evenly distributed in the x-axis direction. Each reinforcing steel bar 8 of each group is respectively snap-fitted into each connecting groove 10 to play a positioning role when the reinforcing steel bar 8 and the connecting steel bar 9 are connected.

[0037] In order to further ensure the connection strength between the part located inside the sinking trough 5 and the part outside the sinking trough 5 after the first casting section 2 is cast, each connecting steel bar 9 near the bottom of the sinking trough 5 is fixed with a reinforcing rib 11 through integral bending. The reinforcing rib 11 is provided with two sections and is respectively located at the two ends of the length direction of the connecting steel bar 9. The ends of the two reinforcing ribs 11 away from the connecting steel bar 9 respectively extend into the two first casting sections 2.

[0038] A fine-tuning assembly is provided between the reinforcing rib 11 and the connecting steel bar 9, and the fine-tuning assembly includes a fine-tuning seat 12, a fine-tuning sleeve 14 and a fine-tuning screw 13, wherein the fine-tuning seat 12 is rotatably mounted on the connecting steel bar 9, the fine-tuning sleeve 14 is rotatably mounted on the fine-tuning seat 12, one end of the fine-tuning screw 13 is rotatably mounted on the reinforcing rib 11, and the other end is threadedly engaged in the fine-tuning sleeve 14, so that when the fine-tuning screw 13 rotates, the fine-tuning screw 13 drives the reinforcing rib 11 to make a slight adjustment in the angle direction due to the thread engagement with the fine-tuning sleeve 14, so that the reinforcing rib 11 can be adaptively adjusted according to actual construction needs, and extend into the two first casting sections 2 from different angles, and has strong applicability. At the same time, after the angle position of the reinforcing rib 11 is adjusted, it is convenient to ensure the stability of its own position through the self-locking effect of the fine-tuning sleeve 14 and the fine-tuning screw 13. The outer peripheral surface of the fine-tuning sleeve 14 close to the fine-tuning screw 13 is engraved with anti-skid patterns 15 to facilitate the staff to directly apply force or use an external workpiece to achieve the rotation of the fine-tuning sleeve 14.

[0039] Continue to refer to Figure 1 In order to further ensure the waterproof performance of the overall structure after the post-casting strip is poured, a waterstop steel plate 16 is horizontally arranged between the two first casting sections 2 and the third casting section 4. The length direction of the waterstop steel plate 16 extends along the y-axis direction, and the width direction of the waterstop steel plate 16, i.e., the two sides of the x-axis direction, respectively extend into the first casting section 2 and the third casting section 4.

[0040] The implementation principle of a crack-resistant base plate post-cast strip structure in an embodiment of the present application is as follows: when the post-cast strip structure is cast and formed, the isolation steel mesh 7 is set to achieve a separation effect on the first casting section 2 during the initial casting, so that a stable post-casting space is formed between the two isolation steel meshes 7 after the first casting section 2 is cast, and after the second casting section 3 is cast between the two isolation steel meshes 7 in the sinking trough 5, the formed second casting section 3 contains two groups of upper and lower layered reinforcing steel bars 8, which is beneficial to fully ensure the structural strength of the second casting section 3 after casting, and further beneficial to ensure the overall service life of the post-cast strip structure.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A crack-resistant floor post-casting strip structure, comprising a concrete cushion layer (1), a first pouring section (2), a second pouring section (3) and a third pouring section (4), wherein the concrete cushion layer (1) is concavely provided with a sinking groove (5), characterized in that: Two parallel and vertically arranged isolation steel wire meshes (7) are installed in the sinking trough (5); the first casting section (2) is provided with two sections and is respectively located on the side away from the two isolation steel wire meshes (7); the second casting section (3) and the third casting section (4) are both located between the two isolation steel wire meshes (7); the second casting section (3) and the third casting section (4) are distributed from bottom to top along the vertical direction; reinforcing steel bars (8) are provided on the inner edge of the sinking trough (5); the reinforcing steel bars (8) are distributed in two groups along the vertical direction, and each group of the reinforcing steel bars (8) has a plurality of reinforcing steel bars distributed in the horizontal direction; The sinking trough (5) is further provided with connecting steel bars (9), and two groups of the connecting steel bars (9) are provided corresponding to the reinforcing steel bars (8), and each group of the connecting steel bars (9) has a plurality of connecting steel bars (9) distributed along the length direction of the reinforcing steel bars (8), and each group of the connecting steel bars (9) is fixed to each group of the reinforcing steel bars (8) by binding; The connecting steel bar (9) is provided with a plurality of connecting grooves (10) distributed along its length direction, and each of the reinforcing steel bars (8) of each group is located in each connecting groove (10); The two groups of connecting steel bars (9) are respectively located on the side away from the two groups of reinforcing steel bars (8), and the connecting steel bars (9) close to the bottom of the sinking trough (5) are fixedly provided with reinforcing bars (11), and the reinforcing bars (11) are provided with two sections and are respectively located at the two ends of the length direction of the connecting steel bars (9), and one end of the two reinforcing bars (11) extends into the two first casting sections (2) respectively; A fine-tuning component for adjusting the angle of the reinforcing rib (11) is provided between the reinforcing rib (11) and the connecting steel bar (9); The fine-tuning assembly comprises a fine-tuning seat (12), a fine-tuning sleeve (14) and a fine-tuning screw (13); the fine-tuning seat (12) is rotatably mounted on the connecting steel bar (9); the fine-tuning sleeve (14) is rotatably mounted on the fine-tuning seat (12); the fine-tuning screw (13) is rotatably mounted on the reinforcing bar (11); and one end of the fine-tuning screw (13) is threadedly engaged in the fine-tuning sleeve (14).

2. The anti-crack floor post-casting strip structure according to claim 1, characterized in that: The fine-tuning sleeve (14) is provided with anti-slip patterns (15) on the outside.

3. The anti-crack floor post-casting strip structure according to claim 1, characterized in that: A water-stop steel plate (16) is horizontally arranged between the first pouring section (2) and the third pouring section (4), and the two sides of the water-stop steel plate (16) in the width direction are respectively located in the first pouring section (2) and the third pouring section (4).

4. The anti-crack floor post-casting strip structure according to claim 1, characterized in that: A waterproof coiled material (6) is arranged on the top of the concrete cushion layer (1).

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