Cover beam anchorage device mounting structure and cover beam

Abstract

A capping beam anchorage device mounting structure comprises a capping beam outer shell, an anchor box, a plurality of anchorage device bodies and an end formwork, the anchor box is fixedly arranged in the capping beam outer shell, and the length of the anchor box is smaller than that of the capping beam outer shell; the anchorage device body penetrates through the anchor box and is fixedly installed on the anchor box, and the end of the anchorage device body does not exceed the end of the bent cap outer shell. The end formwork is fixedly installed at the end of the bent cap outer shell through a connecting structure and covers the end of the bent cap outer shell in a sealing mode. A cavity between the end formwork and the anchor box is fixedly filled with concrete. The anchor box is contained in the cover beam outer shell, after anchor sealing of the anchorage device body is completed, concrete is poured into the end of the cover beam outer shell through the end mold to completely wrap the sealing anchor, the end of the cover beam is flat, no obvious color difference exists, the cover beam is attractive, the anchorage device is better protected, and the appearance quality requirement of a bridge is met.

Description

Technical Field

[0001] This application relates to the technical field of bridge engineering. Specifically, it relates to a cap beam anchor installation structure and a cap beam. Background Art

[0002] The main reason for installing anchors on the cap beam is to apply and transfer prestress to enhance the overall bearing capacity and durability of the bridge structure. Prestress technology is a commonly used technology in modern bridge construction. By introducing prestress into concrete components (such as cap beams), the tensile strength can be increased, the occurrence of cracks can be reduced, and thus the service life of the bridge can be extended.

[0003] In the prior art, a seal anchor is installed at the end of the anchor to protect the prestressed steel strands and the anchor, thereby extending the service life of the structure. The seal anchor usually uses materials such as cement mortar. After the installation of the seal anchor is completed, as Figure 4 shown, there is a large color difference between the seal anchor and the concrete of the cap beam around the anchor. At the same time, the end of the seal anchor often protrudes from the end of the cap beam, resulting in extremely unbeautiful ends of the cap beam, which does not meet the appearance quality requirements of the bridge.

[0004] Therefore, it is necessary for the inventor to design a new cap beam anchor installation structure and a cap beam to overcome the above problems. Summary of the Invention

[0005] The main purpose of this application is to provide a cap beam anchor installation structure and a cap beam to solve the problem of the unbeautiful appearance at the seal anchor of the cap beam end in the related art.

[0006] To achieve the above purpose, in the first aspect, this application provides a cap beam anchor installation structure, including a cap beam outer shell, an anchor box, a plurality of anchor body parts, and an end formwork, where:

[0007] The anchor box is fixedly arranged inside the cap beam outer shell, and the length of the anchor box is less than the length of the cap beam outer shell;

[0008] The anchor body part penetrates through the anchor box and is fixedly installed on the anchor box, and the end of the anchor body part does not extend beyond the end of the cap beam outer shell;

[0009] The end formwork is fixedly installed at the end of the cap beam outer shell through a connection structure and covers the end of the cap beam outer shell;

[0010] The cavity between the end formwork and the anchor box is fixedly filled with concrete.

[0011] Preferably, the cap beam outer shell is integrally cast outside the anchor box.

[0012] Preferably, the anchor box is integrally cast with concrete, and a through-anchor hole for installing the anchor body is reserved on the anchor box.

[0013] Preferably, the thickness range of the capping beam outer shell is 10 cm to 30 cm.

[0014] Preferably, the connecting structure includes a plurality of screws and nuts. The screws are fixedly arranged at the end of the capping beam outer shell and / or the end of the anchor box. The screws penetrate through the end formwork and are threadedly connected with the nuts.

[0015] Preferably, the connecting structure includes a plurality of auxiliary steel bars fixedly arranged at the end of the capping beam outer shell and / or the end of the anchor box. The auxiliary steel bars penetrate through the end formwork and are bent to press the end formwork against the end of the capping beam outer shell.

[0016] Preferably, pouring holes are formed through the tops of both ends of the capping beam outer shell.

[0017] Preferably, the material of the end formwork is bamboo plywood.

[0018] On the other hand, the present application also provides a capping beam, including a capping beam anchor installation structure as described above.

[0019] A capping beam anchor installation structure and a capping beam provided by the present utility model, compared with the prior art, have the following beneficial effects:

[0020] By placing the anchor box in the capping beam outer shell and pouring concrete at the inner end of the capping beam outer shell through the end mold to completely wrap and seal the anchor body after the anchor body is sealed, and removing the end formwork after the concrete solidifies, the end of the capping beam is flat, the internal anchor body cannot be seen, and there is no obvious color difference, which is both beautiful and better protects the anchor, and at the same time meets the appearance quality requirements of the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of the present application are used to provide a further understanding of the present application, making other features, objects, and advantages of the present application more obvious. The schematic embodiments and descriptions thereof of the present application are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0022] Figure 1 is a structural diagram of the anchor box of the present utility model;

[0023] Figure 2 is an overall structural diagram of the present utility model;

[0024] Figure 3 is an exploded structural diagram of the present utility model;

[0025] Figure 4It is a schematic diagram of the end of the bent cap anchor in the prior art of the present utility model.

[0026] Wherein: 1. Bent cap outer shell; 2. Anchor box; 3. Anchor body; 4. End formwork; 5. Anchor hole; 6. Screw; 7. Nut; 8. Pouring hole. Specific embodiments

[0027] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of this application.

[0028] It should be noted that the terms "first", "second", etc. in the description of this application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to describe the embodiments of this application here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0029] In this application, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation.

[0030] Moreover, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0031] In addition, the meaning of the term "plurality" should be two or more.

[0032] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] Embodiment 1:

[0034] As Figures 1 to 3 shown, a mounting structure of a bent cap anchor body 3 includes a bent cap outer shell 1, an anchor box 2, a plurality of anchor bodies 3, and an end formwork 4, wherein: the anchor box 2 is fixedly arranged inside the bent cap outer shell 1, and the length of the anchor box 2 is less than the length of the bent cap outer shell 1; the anchor body 3 penetrates through the anchor box 2 and is fixedly installed on the anchor box 2, and the end of the anchor body 3 does not extend beyond the end of the bent cap outer shell 1; the end formwork 4 is fixedly installed at the end of the bent cap outer shell 1 through a connection structure and covers the end of the bent cap outer shell 1; the cavity between the end formwork 4 and the anchor box 2 is fixedly filled with concrete.

[0035] Specifically, the bent cap is designed into two layers, namely the outer bent cap shell 1 and the anchor box 2. The length of the inner anchor box 2 is less than the length of the bent cap outer shell 1, so that both ends of the anchor box 2 are located inside the bent cap outer shell 1. A through-anchor hole 5 for installing the anchor body 3 is reserved in the anchor box 2 during manufacturing. After the anchor box 2 is manufactured, the bent cap outer shell 1 is cast outside the anchor box 2. Then, the anchor body 3 is installed on the anchor body 3 and sealed. After the sealing is completed, the end formwork 4 is fixedly installed at the end of the bent cap outer shell 1 through a connection structure. Note that the end formwork 4 covers the entire end of the bent cap outer shell 1. At this time, a cavity is formed between the end formwork 4 and the anchor box 2. Then, concrete is poured into this cavity. After the concrete solidifies, the formwork is removed. At this time, the end of the anchor body 3 is completely buried in the concrete, making the end of the bent cap flat and the color of the end concrete uniform without obvious color difference, making the end of the bent cap more beautiful. In this embodiment, by placing the anchor box 2 inside the bent cap outer shell 1 and pouring concrete inside the end of the bent cap outer shell 1 through the end mold to completely wrap and seal the anchor after the sealing of the anchor body 3, and removing the end formwork 4 after the concrete solidifies, the end of the bent cap is flat, the internal anchor body 3 cannot be seen, and there is no obvious color difference, which is both beautiful and better protects the anchor body 3, and at the same time meets the appearance quality requirements of the bridge.

[0036] The bent cap outer shell 1 is integrally cast outside the anchor box 2. Specifically, during production and manufacturing, directly casting the anchor box 2 and the bent cap outer shell 1 simultaneously makes the formwork more complex, and casting the anchor box 2 first and then the bent cap outer shell 1 is easier for construction and operation.

[0037] The anchor box 2 is integrally cast with concrete, and a cable passing hole 5 for installing the anchor body 3 is reserved on the anchor box 2. Specifically, the cable passing hole 5 is used for installing prestressing devices such as the anchor body 3 and steel strands.

[0038] The thickness of the capping beam outer shell 1 ranges from 10 cm to 30 cm. Specifically, the prestress of the anchor body 3 is applied to the anchor box 2 and transmitted to the capping beam outer shell 1. If the thickness of the capping beam outer shell 1 is too large, the transmission effect of the prestress will be reduced, and cracks are likely to occur on the outer periphery of the capping beam outer shell 1. If the thickness of the capping beam outer shell 1 is too small, the strength of the capping beam outer shell 1 will be low, and it may be damaged during subsequent construction. Therefore, it is more appropriate to set the thickness of the capping beam outer shell 1 between 10 cm and 30 cm. Preferably, its thickness is 20 cm.

[0039] The connecting structure includes a plurality of screws 6 and nuts 7. The screws 6 are fixedly arranged at the end of the capping beam outer shell 1 and / or the end of the anchor box 2. The screws 6 pass through the end formwork 4 and are threadedly connected to the nuts 7. Specifically, the screws 6 are fixed on the casting formwork when casting the anchor box 2 or the capping beam outer shell 1. After casting is completed, the screws 6 can be fixed on the capping beam outer shell 1 or the anchor box 2. A through hole adapted to the screw 6 is opened on the end formwork 4. After the screw 6 passes through the through hole, the end formwork 4 is fixed to the end of the capping beam outer shell 1 through the nut 7. To ensure the fixing effect and prevent concrete leakage, more than four screws 6 can be selected. The four screws 6 are respectively arranged at the four corners of the end of the capping beam outer shell 1 to make the fixing effect better. After casting is completed and the formwork is removed, the part of the screw 6 extending into the end face of the capping beam outer shell 1 can be cut off.

[0040] Pouring holes 8 are penetrated through the tops of both ends of the capping beam outer shell 1. Specifically, after the formwork is installed, concrete is filled into the cavity between the end formwork 4 and the anchor box 2 from the pouring holes 8. In addition, pouring holes 8 preset on the formwork can also achieve the pouring work.

[0041] The material of the end formwork 4 is bamboo plywood. Specifically, bamboo plywood has high strength, good toughness, light weight, is easy to construct and open holes, has a smooth surface and good demoulding effect.

[0042] A capping beam includes a capping beam anchor installation structure as described above.

[0043] Embodiment 2: There is no figure. The difference between this embodiment and Embodiment 1 is that the connecting structure includes a number of auxiliary steel bars fixedly arranged at the end of the capping beam outer shell 1 and / or the end of the anchor box 2. The auxiliary steel bars penetrate through the end formwork 4 and are bent to press the end formwork 4 against the end of the capping beam outer shell 1. Specifically, the steel bars are fixed on the casting formwork when casting the anchor box 2 or the capping beam outer shell 1. After the casting is completed, the steel bars can be fixed on the capping beam outer shell 1 or the anchor box 2. A through hole adapted to this steel bar is opened on the end formwork 4. After the steel bar passes through the through hole, the steel bar is bent, and the end formwork 4 can also be pressed against the end of the capping beam outer shell 1. After the concrete casting is completed, the formwork is removed and the excess steel bars are cut off. Compared with Embodiment 1, the cost of the steel bars is lower than that of the screw rod 6, but the pressing effect after the steel bars are bent is slightly worse than the effect of the cooperation between the screw rod 6 and the nut 7. Therefore, more steel bars are required to achieve similar technical effects, resulting in more workload for the workers during construction.

[0044] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A cap beam anchor installation structure, characterized in that: It comprises a cap beam outer shell (1), an anchor box (2), a plurality of anchor bodies (3) and an end template (4), wherein: The anchor box (2) is fixedly arranged inside the cap beam outer shell (1), and the length of the anchor box (2) is smaller than the length of the cap beam outer shell (1); The anchor body (3) passes through the anchor box (2) and is fixedly mounted on the anchor box (2), and the end of the anchor body (3) does not exceed the end of the cap beam outer shell (1); The end template (4) is fixedly mounted on the end of the cap beam outer shell (1) through a connecting structure and covers the end of the cap beam outer shell (1); The cavity between the end formwork (4) and the anchor box (2) is fixedly filled with concrete.

2. A cap beam anchor installation structure according to claim 1, characterized in that: The cap beam outer shell (1) is integrally cast on the outside of the anchor box (2).

3. A cap beam anchor installation structure according to claim 1, characterized in that: The anchor box (2) is formed by integrally pouring concrete, and an anchor hole (5) for installing the anchor body (3) is reserved on the anchor box (2).

4. A cap beam anchor installation structure according to claim 1, characterized in that: The thickness of the cap beam outer shell (1) ranges from 10 cm to 30 cm.

5. A cap beam anchor installation structure according to claim 1, characterized in that: The connection structure includes a plurality of screw rods (6) and nuts (7), wherein the screw rods (6) are fixedly arranged at the end of the cap beam outer shell (1) and / or the end of the anchor box (2), and the screw rods (6) penetrate the end template (4) and are threadedly connected to the nuts (7).

6. A cap beam anchor installation structure according to claim 1, characterized in that: The connection structure comprises a plurality of auxiliary steel bars fixedly arranged at the end of the cap beam outer shell (1) and / or the end of the anchor box (2); the auxiliary steel bars penetrate through the end formwork (4) and are then bent to press the end formwork (4) against the end of the cap beam outer shell (1).

7. A cap beam anchor installation structure according to claim 1, characterized in that: Casting holes (8) are provided through the tops of both ends of the cap beam outer shell (1).

8. A cap beam anchor installation structure according to claim 1, characterized in that: The material of the end template (4) is bamboo plywood.

9. A cap beam, characterized in that: It comprises a cap beam anchor installation structure as described in any one of claims 1-8.

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