Super-long concrete post-cast strip structure

Abstract

The utility model discloses a super-long concrete post-cast strip structure, which relates to the technical field of building construction, and comprises a concrete base body, one side of the concrete base body is fixedly connected with a concrete surface layer, in the super-long concrete post-cast strip structure, a first prefabricated reinforcing steel bar and a second prefabricated reinforcing steel bar can be used for supporting a second transverse reinforcing steel bar and a first transverse reinforcing steel bar; the two reinforcing plates are used for forming a stable triangular structure, deformation of steel bars in the post-cast strip can be reduced, the using effect of the steel bars is guaranteed, meanwhile, part of temperature stress can be released, and arrangement of permanent seams is omitted; the waterproof plate can be installed on the tops of the second prefabricated steel bars through clamping of the guide strips and the second prefabricated steel bars, stable installation of the waterproof layer is achieved, the waterproof effect of the top of the post-cast strip is guaranteed, the contact area of the auxiliary plate and the concrete base body can be increased through the clamping strips, and the connection stability of the auxiliary plate and the concrete base body is improved; and the side wall of the concrete base body is supported and reinforced.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a post-casting strip structure of an extra-long concrete. Background Art

[0002] A post-cast strip is a concrete strip left at the corresponding positions of the foundation slab, wall, or beam in accordance with design or construction specifications to prevent harmful cracks that may be caused by uneven shrinkage or settlement of the reinforced concrete structure during construction.

[0003] For example, Chinese patent CN216379657U discloses an extra-long basement sunken post-cast strip structure, including a foundation trench excavated and formed on the basement floor; a bottom plate casting structure is provided on both side walls and the top surface of the foundation trench, a post-cast strip casting structure is provided on the bottom wall of the foundation trench, the post-cast strip casting structure is located between the bottom plate casting structures on both sides, and forms a ditch with the bottom plate casting structures on both sides; brick walls are provided on the opposite sides of the bottom plate casting structures on both sides of the ditch, and precast concrete cover plates are placed on the brick walls, and the precast concrete cover plates are flush with the bottom plate casting structure on the top surface of the foundation trench; the bottom plate casting structure includes bottom plate steel bars and pre-cast concrete, the post-cast strip casting structure includes post-cast strip steel bars and post-cast concrete, and the bottom plate steel bars and post-cast strip steel bars are tied and fixed.

[0004] In the above patent, the problem of cracking and leakage of the concrete structure is solved by binding the bottom plate steel bars with the post-cast strip steel bars. However, when the length of the post-cast strip is long, there are problems of large temperature stress and large deformation inside. Under the action of strain forces in different directions, the steel bars are deformed more seriously, thereby reducing the supporting strength inside the post-cast strip and easily causing damage to the post-cast strip. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the prior art that when the length of the post-cast strip is long, there are large temperature stress and deformation inside, and under the action of strain forces in different directions, the steel bars are severely deformed, thereby reducing the supporting strength inside the post-cast strip and easily causing damage to the post-cast strip. A post-cast strip structure for ultra-long concrete is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a post-cast strip structure of an extra-long concrete, comprising a concrete base, one side of the concrete base is fixedly connected to a concrete surface layer, a supporting mechanism is arranged at the bottom of the concrete surface layer, the supporting mechanism comprises precast steel bar 1, precast steel bar 2 and a reinforcement plate, both sides of the precast steel bar 2 are provided with precast steel bar 1, the bottoms of the precast steel bar 1 and the precast steel bar 2 are fixedly connected with transverse steel bar 2, the transverse steel bar 2 is inserted through the reinforcement plate, a through hole is opened on one side of the reinforcement plate, and an auxiliary strip 1 is fixedly connected to one side of the reinforcement plate, the auxiliary strip 2 is fixedly connected to the other side of the reinforcement plate, and the transverse steel bar 1 is fixedly connected to one side of the reinforcement plate.

[0007] Preferably, the top of the transverse steel bar is fixedly connected to the prefabricated steel bar, and an auxiliary plate is inserted at one end of the transverse steel bar.

[0008] Preferably, a vertical steel bar one is fixedly connected between the prefabricated steel bars one, and a vertical steel bar two is fixedly connected between the prefabricated steel bars two.

[0009] Preferably, one side of the auxiliary plate is plugged into the second transverse steel bar, and one side of the auxiliary plate is snap-connected with the concrete matrix.

[0010] Preferably, a snap-fit ​​strip is fixedly connected to one side of the auxiliary plate, and one side of the snap-fit ​​strip is snap-fitted to the concrete base.

[0011] Preferably, a guide bar is engaged with the top of the second prefabricated steel bar, and a waterproof plate is fixedly connected to the top of the guide bar.

[0012] Preferably, the top of the waterproof board is fixedly connected to the concrete surface.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, the vertical steel bar 1 can be used to realize the vertical connection of multiple prefabricated steel bars 1, the vertical steel bar 2 can realize the connection of multiple prefabricated steel bars 2, the prefabricated steel bars 1 and the prefabricated steel bars 2 can be used to support the transverse steel bars 2 and the transverse steel bars 1, thereby improving the strength inside the post-casting zone and improving the crack resistance. The two reinforcement plates form a stable triangular structure, which can reduce the deformation of the steel bars inside the post-casting zone, ensure the use effect of the steel bars, and at the same time release part of the temperature stress and eliminate the need to set a permanent seam.

[0015] 2. In the utility model, the waterproof board can be installed on the top of the precast steel bar by utilizing the guide strip to engage with the precast steel bar, so as to guide the installation of the waterproof board. The top of the waterproof board can be reinforced by the concrete surface layer, so as to achieve stable installation and use of the waterproof layer, thereby ensuring the waterproof effect of the top of the post-cast strip. The engaging strip can increase the contact area between the auxiliary board and the concrete matrix, improve the stability of the connection between the auxiliary board and the concrete matrix, and achieve support and reinforcement of the side wall of the concrete matrix. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic cross-sectional view of a concrete base structure of a post-casting strip structure of super-long concrete is provided for the utility model;

[0017] Figure 2 The utility model provides a schematic diagram of the installation of a waterproof board structure of a post-cast strip structure of an extra-long concrete;

[0018] Figure 3 The utility model provides a schematic cross-sectional view of a guide strip structure of a super-long concrete post-casting strip structure;

[0019] Figure 4 The utility model provides a schematic diagram of the connection between the prefabricated steel bars and the transverse steel bars of the post-cast strip structure of an ultra-long concrete;

[0020] Figure 5 The utility model provides a schematic diagram of the installation of an auxiliary strip structure of an ultra-long concrete post-cast strip structure.

[0021] Legend: 1. Concrete surface; 2. Concrete matrix; 3. Precast steel bar 1; 4. Precast steel bar 2; 5. Waterproof board; 6. Locking strip; 7. Auxiliary board; 8. Horizontal steel bar 1; 9. Vertical steel bar 1; 10. Reinforcement board; 11. Guide strip; 12. Auxiliary strip 1; 13. Auxiliary strip 2; 14. Through hole; 15. Horizontal steel bar 2; 16. Vertical steel bar 2. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Embodiment 1

[0025] Reference Figure 1-5 As shown: a post-cast strip structure of super-long concrete, including a concrete base 2, a concrete surface layer 1 is fixedly connected to one side of the concrete base 2, a supporting mechanism is arranged at the bottom of the concrete surface layer 1, the supporting mechanism includes precast steel bars 13, precast steel bars 24 and a reinforcing plate 10, precast steel bars 13 are arranged on both sides of the precast steel bars 24, transverse steel bars 215 are fixedly connected to the bottom of the precast steel bars 13 and the precast steel bars 24, and the transverse steel bars 215 are inserted through the reinforcing plate 10, a through hole 14 is opened on one side of the reinforcing plate 10, and an auxiliary strip 12 is fixedly connected to one side of the reinforcing plate 10, and an auxiliary strip 213 is fixedly connected to the other side of the reinforcing plate 10, a transverse steel bar 8 is fixedly connected to one side of the reinforcing plate 10, the top of the transverse steel bar 8 is fixedly connected to the precast steel bar 3, and an auxiliary plate 7 is inserted at one end of the transverse steel bar 8, vertical steel bars 9 are fixedly connected between the precast steel bars 3, and vertical steel bars 216 are fixedly connected between the precast steel bars 24.

[0026] There are two groups of precast steel bars 3, each group of precast steel bars 3 is connected by vertical steel bars 9, and precast steel bars 24 are located between the two groups of precast steel bars 3. The precast steel bars 24 can be reinforced by vertical steel bars 16. The transverse steel bars 18 and transverse steel bars 215 can be used to provide transverse support for the precast steel bars 3 and the precast steel bars 24 respectively. The steel bar frame inside the post-cast strip is formed by connecting multiple transverse and vertical steel bars, thereby improving the support effect on the inside of the post-cast strip. Since the two symmetrically arranged reinforcement plates 10 are penetrated by the transverse steel bars 215, the triangular structure formed by the two reinforcement plates 10 can further improve the strength of the steel bar frame, thereby reducing the deformation of the steel bar frame under the action of strain forces in different directions, thereby ensuring the use effect of the post-cast strip and reducing the fracture of concrete. The auxiliary strips 12 and 13 on both sides of the reinforcement plate 10 can increase the contact area with the concrete, thereby improving the tightness of the connection between the reinforcement plate 10 and the concrete.

[0027] Embodiment 2

[0028] like Figure 2-Figure 5 As shown, one side of the auxiliary plate 7 is plugged into the transverse steel bar 15, one side of the auxiliary plate 7 is snap-connected with the concrete base 2, one side of the auxiliary plate 7 is fixedly connected with a snap-fit ​​strip 6, one side of the snap-fit ​​strip 6 is snap-connected with the concrete base 2, a guide strip 11 is snap-fitted with the top of the precast steel bar 4, a waterproof board 5 is fixedly connected to the top of the guide strip 11, and the top of the waterproof board 5 is fixedly connected to the concrete surface layer 1.

[0029] The auxiliary plate 7 can be used to assist in the installation and fixation of one end of the transverse steel bar 2 15, and improve the supporting effect of the transverse steel bar 2 15. The end of the locking strip 6 is trapezoidal, which is convenient for the locking strip 6 to be better inserted into the concrete base 2. At the same time, the contact area between one side of the auxiliary plate 7 and the concrete base 2 is increased, thereby improving the stability of the auxiliary plate 7 installed on one side of the concrete base 2, shielding and protecting one side of the concrete base 2 to avoid damage to the edge of the concrete base 2. The guide strip 11 can be used to guide the installation of the waterproof board 5 on the top of the precast steel bar 2 4. Since the waterproof board 5 is made of waterproof material, the waterproof board 5 is installed on the top of the precast steel bar 2 4, which can improve the waterproof effect inside the post-cast strip. The waterproof board 5 is fixed by the concrete surface layer 1, which can reduce the displacement of the waterproof board 5 and ensure the stable installation and use of the waterproof board 5.

[0030] The method of use and working principle of the device are as follows: a post-cast strip is set at the place where a seam should be set, first the auxiliary plate 7 is installed on one side of the concrete base 2, and then the transverse steel bar 15 that penetrates the reinforcing plate 10 is inserted into the auxiliary plate 7, and the two auxiliary plates 7 are cast, and then the waterproof plate 5 is clamped on the top of the precast steel bar 4 located at the top through the guide strip 11, and the bottom of the waterproof plate 5 is fixed after the concrete solidifies, and then the top of the waterproof plate 5 is cast again, so that the concrete surface 1 is flush with the top of the concrete base 2. When the entire post-cast strip is used, the transverse steel bar 8 and the transverse steel bar 15 can be used to provide transverse support for the auxiliary plate 7, the vertical steel bar 9 and the precast steel bar 3 are connected, and the precast steel bar 3 is used to vertically support the transverse steel bar 15 and the transverse steel bar 8, and the obliquely arranged reinforcing plate 10 is installed between the two auxiliary plates 7, which can reduce the deformation of the transverse steel bar 15 and the precast steel bar 4.

[0031] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A super-long concrete post-cast strip structure, comprising a concrete base (2), one side of the concrete base (2) being fixedly connected to a concrete surface layer (1), characterized in that: A support mechanism is provided at the bottom of the concrete surface layer (1), and the support mechanism comprises a precast steel bar one (3), a precast steel bar two (4) and a reinforcing plate (10). Precast steel bars one (3) are provided on both sides of the precast steel bar two (4). The bottoms of the precast steel bars one (3) and the precast steel bars two (4) are fixedly connected with transverse steel bars two (15). The transverse steel bars two (15) are inserted through the reinforcing plate (10). A through hole (14) is provided on one side of the reinforcing plate (10), and an auxiliary bar one (12) is fixedly connected to one side of the reinforcing plate (10), and an auxiliary bar two (13) is fixedly connected to the other side of the reinforcing plate (10). A transverse steel bar one (8) is fixedly connected to one side of the reinforcing plate (10).

2. The super-long concrete post-casting strip structure according to claim 1, characterized in that: The top of the transverse steel bar (8) is fixedly connected to the prefabricated steel bar (3), and an auxiliary plate (7) is inserted into one end of the transverse steel bar (8).

3. The super-long concrete post-casting strip structure according to claim 1, characterized in that: A vertical steel bar one (9) is fixedly connected between the prefabricated steel bars one (3), and a vertical steel bar two (16) is fixedly connected between the prefabricated steel bars two (4).

4. The super-long concrete post-casting strip structure according to claim 2, characterized in that: One side of the auxiliary plate (7) is plugged into the second transverse steel bar (15), and one side of the auxiliary plate (7) is snap-fitted and connected to the concrete base (2).

5. The super-long concrete post-casting strip structure according to claim 4, characterized in that: A snap-fit ​​strip (6) is fixedly connected to one side of the auxiliary plate (7), and one side of the snap-fit ​​strip (6) is snap-fitted and connected to the concrete base (2).

6. The super-long concrete post-casting strip structure according to claim 1, characterized in that: A guide strip (11) is clamped on the top of the second prefabricated steel bar (4), and a waterproof plate (5) is fixedly connected to the top of the guide strip (11).

7. The super-long concrete post-casting strip structure according to claim 6, characterized in that: The top of the waterproof board (5) is fixedly connected to the concrete surface layer (1).

Images