Anchor sealing structure for tensioning notch of lower bent beam of large cantilever bent cap

Abstract

An anchor sealing structure for a large cantilever cover beam lower bending bundle tensioning notch comprises a cover beam, the cover beam is provided with a lower bending tensioning bundle, the tensioning end of the tensioning bundle is located in the tensioning notch, and the tensioning notch is communicated with the top of the cover beam through an embedded pipe. And the screw rod is connected with the template at the opening of the tensioning notch. According to the utility model, the form can be conveniently removed, and the compactness of the anchor sealing end is ensured.

Description

Technical Field

[0001] The utility model belongs to the field of building construction, in particular to cantilever beam construction. Background Art

[0002] Sealing anchor refers to the prestressed anchoring after the tensioning work is completed with bonded prestressing, so that the components can give full play to their prestressing advantages. After the prestressed components are tensioned, grouting treatment is required to protect the prestressed steel strands and enhance the bearing capacity and durability of the components. Cement slurry is pressure-injected into the prestressed channel (pay attention to exhaust the air in the channel as much as possible during this process). After the cement slurry reaches a certain strength, the exposed steel strands can be cut off, and the steel bars are tied at the anchor position, the formwork is installed, and the anchor is wrapped in concrete.

[0003] For the box beam structure with large cantilever cap beam and lower curved beam, it is very difficult to support the formwork in the cantilever area. Even with the traditional construction method, it is very difficult to support and remove the formwork. This also affects the appearance quality.

[0004] Chinese patent document CN202120120741.9 discloses "A simple hanger for secondary anchoring of prestressed cap beams", which solves the problem that during the construction of the secondary anchoring of the traditional cap beam, the bottom formwork of the cap beam has been removed, which makes it inconvenient to set up the bracket for the secondary anchoring, which wastes a lot of workers' time and reduces the construction speed. In addition, in the traditional secondary anchoring of the cap beam, there are a small amount of bubbles in the concrete, which reduces the casting quality of the secondary anchoring and affects the stability of the cap beam structure. However, the structure is still inconvenient during casting and demolding. Utility Model Content

[0005] The utility model aims to provide a large cantilever cap beam lower bending beam tensioning groove sealing anchor structure to solve the technical problem of inconvenient formwork removal and support of the sealing anchor.

[0006] To achieve the above purpose, the specific technical solution of the utility model is as follows:

[0007] A large cantilever cap beam downward bending bundle tensioning slot sealing and anchoring structure comprises a cap beam, the cap beam is provided with a downward bending tensioning bundle, the tensioning end of the tensioning bundle is located in the tensioning slot, the tensioning slot is connected to the top of the cap beam through an embedded pipe, and is characterized in that a plurality of nuts are embedded in the tensioning slot, screws are connected to the nuts, and the screws are connected to the template at the opening of the tensioning slot.

[0008] Furthermore, the connecting screw is connected to two nuts.

[0009] Furthermore, the embedded pipe is a corrugated pipe.

[0010] Furthermore, the template is provided with a plurality of secondary keels.

[0011] Furthermore, the connecting screw passes through the secondary keel.

[0012] The utility model has the following advantages:

[0013] 1. The formwork can be removed by simply removing the bolts, without the need for cutting. During installation and removal, there is no need to operate on the upper and lower sides of the beam, making it easier to remove the formwork.

[0014] The embedded pipe reduces the generation of bubbles in the anchor concrete and ensures the density of the anchor end. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0016] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of the anchor sealing structure of the lower bending beam tensioning groove of the large cantilever cap beam of the utility model in conjunction with the accompanying drawings.

[0017] like Figure 1 As shown, the large cantilever cap beam lower curved beam tensioning groove sealing anchor structure of the utility model, in this application, the cap beam 1 is provided with a lower curved tensioning beam 2, the tensioning end of the tensioning beam 2 is located in the tensioning groove 3, and the tensioning groove 3 is connected with the top of the cap beam 1 through the embedded pipe 4, and the embedded pipe 4 is a corrugated pipe.

[0018] During the implementation of the technical solution of the present application, multiple groups of nuts 6 are embedded above the tensioning slot 3, and each group of nuts 6 includes two nuts 6 stacked together. When preparing to seal the anchor, the screw 7 is passed through the template 5 to connect with the nut 6, and the template 5 is fixed under the cap beam 1 to form a closed box with the tensioning slot 3. Concrete mortar is injected into the tensioning slot 3 through the embedded pipe 4 to complete the anchor.

[0019] During the implementation of the technical solution of the present application, a number of secondary keels 8 are provided on the template 5 to prevent the template 5 from deforming.

[0020] Specifically, the screw rod 7 passes through the secondary keel 8 during installation to ensure the connection strength.

[0021] When disassembling the template 5 , workers can remove the screw rod 7 with a wrench through a high-altitude operation vehicle, and then the template 5 can be removed.

[0022] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A large cantilever cap beam downward bending beam tensioning groove sealing anchor structure, comprising a cap beam (1), the cap beam (1) being provided with a downward bending tensioning beam (2), the tensioning end of the tensioning beam (2) being located in a tensioning groove (3), the tensioning groove (3) being connected to the top of the cap beam (1) via a pre-buried pipe (4), characterized in that: A plurality of nuts (6) are pre-buried in the tensioning notch (3), a screw rod (7) is connected to the nut (6), and the screw rod (7) is connected to the template (5) at the opening of the tensioning notch (3).

2. The large cantilever cap beam lower bending beam tensioning slot sealing and anchoring structure according to claim 1 is characterized in that: The connecting screw (7) is connected to two nuts (6).

3. The large cantilever cap beam lower bending beam tensioning slot sealing and anchoring structure according to claim 2 is characterized in that: The embedded pipe (4) is a corrugated pipe.

4. The large cantilever cap beam lower bending beam tensioning slot sealing and anchoring structure according to claim 3 is characterized in that: The template (5) is provided with a plurality of secondary keels (8).

5. The large cantilever cap beam lower bending beam tensioning slot sealing and anchoring structure according to claim 4 is characterized in that: The connecting screw (7) passes through the secondary keel (8).

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