Anti-seepage repairing structure for post-cast top plate of tower crane foundation

Abstract

The utility model relates to a tower crane foundation post-cast roof anti-seepage repairing structure which comprises a rectangular steel frame and an anchoring steel bar, the anchoring steel bar is fixed in a construction groove formed in a roof, the rectangular steel frame is fixedly connected with the anchoring steel bar and covers an anti-seepage repairing area, and the top face of the rectangular steel frame and the top face of the anchoring steel bar are fixedly connected with a rectangular steel plate. A concrete cover plate is arranged on the top face of the rectangular steel plate, and the top face of the concrete cover plate and the top face of the tower crane foundation post-pouring top plate on the periphery of the concrete cover plate are covered with waterproof coiled materials. The utility model has the advantages that: (1) the tower crane foundation top plate part is fully covered and repaired, the anti-seepage effect is better, the construction is completed at one time, and the subsequent repair construction of extending cracks is not needed; (2) the durability of the used material is better, the anti-seepage function of the material can be maintained for a long time, and the long-term anti-seepage effect is achieved; and (3) the construction method is simple and easy to operate, the whole construction process is visible, the construction quality is easy to monitor, and the construction completion effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete anti-seepage, in particular to an anti-seepage repair structure for the post-cast top plate of a tower crane foundation. Background Technique

[0002] A construction tower crane is a kind of hoisting and transporting equipment used for high-rise and super high-rise buildings, mainly used during the structural construction stage of buildings. During the construction process of a building, the part of the tower crane foundation passing through the concrete top plate is often constructed after the tower crane is demolished. At present, the construction scheme for the post-cast top plate of the tower crane foundation usually adopts the construction scheme of the top plate post-cast strip. Cracks are prone to appear at the interface between the new and old concretes, resulting in concrete water seepage. In the past, if water seepage occurred in the post-cast top plate part of the tower crane foundation, the grouting repair method was usually adopted, and the grouting material was polyurethane foaming agent. There are the following problems with the grouting repair:

[0003] 1) During the construction of grouting and repairing existing cracks, it may cause extension cracks in the old cracks, and subsequent further repair of the extension cracks is required, and it cannot be repaired in one go;

[0004] 2) Limited by durability, the grouting material will gradually reduce the grouting repair effect over time, and finally lead to water seepage again at the repaired part. Summary of the Invention

[0005] The purpose of the utility model is to provide an anti-seepage repair structure for the post-cast top plate of a tower crane foundation according to the deficiencies of the above-mentioned prior art, to repair the top plate part of the tower crane foundation. This method will not generate new extension cracks during the repair process, can be repaired in one go, and this repair method has a long-term anti-seepage effect.

[0006] The purpose of the utility model is achieved by the following technical solutions:

[0007] An anti-seepage repair structure for the post-cast top plate of a tower crane foundation, used for anti-seepage repair of the post-cast top plate of the tower crane foundation constructed successively, is characterized in that: it includes a rectangular steel frame and anchor bars. The anchor bars are fixed in a construction groove opened on the post-cast top plate of the tower crane foundation. The rectangular steel frame is fixedly connected with the anchor bars and covers the anti-seepage repair area. A rectangular steel plate is fixedly connected to the top surfaces of the rectangular steel frame and the anchor bars. A concrete cover plate is arranged on the top surface of the rectangular steel plate, and the top surface of the concrete cover plate and the top surfaces of the post-cast top plate of the tower crane foundation around it are covered with waterproof coiled materials.

[0008] A number of the anchor bars are evenly spaced along the circumferential direction of the rectangular steel frame.

[0009] The top plane of the anchor reinforcement is flush with the top plane of the post-cast top plate of the tower crane foundation; the top plane of the rectangular steel frame is flush with the top plane of the anchor reinforcement.

[0010] The concrete cover plate extends to a position outside the rectangular steel plate.

[0011] The construction groove is sealed with cement grouting material.

[0012] The advantages of the present utility model are as follows:

[0013] (1) The top plate part of the tower crane foundation is fully covered and repaired with steel plates, concrete cover plates and waterproof coiled materials, resulting in a better anti-seepage effect. The construction is completed at one time, and subsequent repair construction for extended cracks is not required.

[0014] (2) The materials used have better durability and can maintain their anti-seepage functionality for a long time, thus maintaining a long-term anti-seepage effect.

[0015] (3) The construction method is simple and easy to operate. The whole construction process is visible, making it easy to monitor the construction quality and ensure the completion effect of the construction. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a schematic diagram of the construction groove in the present utility model;

[0018] Figure 3 is a schematic diagram of the anchorage of the anchor reinforcement in the present utility model;

[0019] Figure 4 is a schematic diagram of the connection between the new anchor reinforcement and the L-shaped rectangular steel frame in the present utility model;

[0020] Figure 5 is a schematic diagram of the connection between the L-shaped rectangular steel frame and the rectangular steel plate in the present utility model. Detailed Description of the Preferred Embodiments

[0021] The features of the present utility model and other related features will be further described in detail below with reference to the accompanying drawings through embodiments for the understanding of those skilled in the same industry:

[0022] As Figures 1-5 shown, the marks 1-9 in the figure respectively represent: construction groove 1, anchor reinforcement 2, rectangular steel frame 3, cement grouting material 4, rectangular steel plate 5, concrete cover plate 6, waterproof coiled material 7, tower crane foundation top plate 8, post-cast top plate of tower crane foundation 9.

[0023] Embodiment: As Figures 1 to 5As shown in the figure, the anti-seepage repair device for the post-cast top plate of the tower crane foundation in this embodiment is used to repair the anti-seepage of the gap between the post-cast top plate 9 of the tower crane foundation and the top plate 8 of the tower crane foundation. In this embodiment, the top plate 8 of the tower crane foundation and the post-cast top plate 9 of the tower crane foundation refer to the top plates constructed in different stages, and the two together serve as the top plate of the tower crane foundation.

[0024] Specifically, this embodiment includes the following construction steps:

[0025] 1) A rectangular construction groove 1 is opened on the top plate 8 of the tower crane foundation at a corresponding distance from the outer extension of the four sides of the post-cast top plate 9 of the tower crane foundation. The cross-section of the construction groove 1 is rectangular.

[0026] 2) Anchor reinforcement bars 2 are implanted at the four corners and the midpoints of each side of the construction groove 1 by means of planting reinforcement. The top plane of the anchor reinforcement bars 2 is flush with the top surface of the top plate 8 of the tower crane foundation. The horizontal distance of the anchor reinforcement bars 2 from the inner wall of the construction groove 1 is a certain distance. The inner opening of the rectangular steel frame 3 is welded to the anchor reinforcement bars 2. The anchor reinforcement bars 2 are respectively distributed at the four corners and the midpoints of the four sides of the rectangular steel frame 2. The top of the rectangular steel frame 2 is flush with the top plane of the anchor reinforcement bars. The construction groove 1 is filled with cement grouting material 4. After filling, the filled surface of the construction groove 1 is flush with the top surface of the top plate 8 of the tower crane foundation. A rectangular steel plate 5 covers the area of the inner opening of the rectangular steel frame 3. The four sides of the rectangular steel plate 5 correspond to the four sides of the top surface of the rectangular steel frame 3 respectively, and the rectangular steel plate 5 and the rectangular steel frame 3 are welded by full welding.

[0027] 3) A concrete cover plate 6 is poured within a rectangular range at a certain distance from the outer extension of the four sides of the rectangular steel plate 5. The concrete cover plate 6 completely covers the rectangular steel plate 5.

[0028] 4) The waterproof coiled material 7 is laid by means of wet cement pasting. The waterproof coiled material 7 completely covers the top plate 8 of the tower crane foundation and the concrete cover plate 6.

[0029] When this embodiment is specifically implemented: The cross-section of the rectangular steel frame 5 is L-shaped, and its size is customized according to the position of the anchor reinforcement bars 2. After the inner opening of the rectangular steel frame 5 is welded to the anchor reinforcement bars 2, the top surface of the rectangular steel frame 5 is flush with the top plane of the anchor reinforcement bars 2.

[0030] Although the above embodiments have described in detail the concept and implementation of the purpose of the present invention with reference to the accompanying drawings, those of ordinary skill in the art can recognize that various improvements and transformations can still be made to the present invention without departing from the scope defined by the claims. Therefore, they are not elaborated one by one here.

Claims

1. A post-cast top plate anti-seepage repair structure for tower crane foundation, which is used for anti-seepage repair of the gap between the post-cast top plate of the tower crane foundation constructed successively and the top plate, and is characterized in that: It includes a rectangular steel frame and anchoring steel bars. The anchoring steel bars are fixed in a construction groove opened on the top plate. The rectangular steel frame is fixedly connected to the anchoring steel bars and covers the anti-seepage repair area. A rectangular steel plate is fixedly connected to the top surfaces of the rectangular steel frame and the anchoring steel bars. A concrete cover plate is arranged on the top surface of the rectangular steel plate. The top surface of the concrete cover plate and the top surfaces of the post-cast top plate of the tower crane foundation around it are covered with waterproof coiled materials.

2. The anti-seepage repair structure of the post-cast top plate of the tower crane foundation according to claim 1, characterized in that: A number of the anchoring steel bars are evenly spaced along the circumferential direction of the rectangular steel frame.

3. A post-cast top plate anti-seepage repair structure for a tower crane foundation according to claim 1, characterized in that: The top plane of the anchoring steel bars is flush with the top plane of the post-cast top plate of the tower crane foundation; the top plane of the rectangular steel frame is flush with the top plane of the anchoring steel bars.

4. A post-cast roof anti-seepage repair structure for a tower crane foundation according to claim 1, characterized in that: The concrete cover plate extends beyond the rectangular steel plate.

5. A post-cast top plate anti-seepage repair structure for a tower crane foundation according to claim 1, characterized in that: The construction groove is sealed with cement grouting material.

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