Box girder with embedded slab and formwork structure

Abstract

The application relates to a box girder with embedded plates and a formwork structure, which comprises a prefabricated box girder and a pre-embedded part arranged at the bottom of the prefabricated box girder, wherein the pre-embedded part comprises a connecting plate and connecting ribs, the connecting plate is attached to the surface of the prefabricated box girder, one end of the connecting rib is connected with the connecting plate, and the other end of the connecting rib extends into the prefabricated box girder and is connected with a steel reinforcement cage. The pre-embedded part is connected with a support hanger, and the prefabricated box girder does not need to be drilled or operated in the later period, the integrity of the prefabricated box girder is not damaged, the connecting part of the pre-embedded part and the support hanger is close to the prefabricated box girder, the pre-embedded part is not embedded into the prefabricated box girder, and the prefabricated box girder is not affected.

Description

Technical Field

[0001] This application relates to the field of simply supported box girder technology, and in particular to a box girder with embedded plate and formwork structure. Background Technology

[0002] A box girder is a type of beam used in bridge engineering. It is hollow inside and has flanges on both sides of the upper part, resembling a box, hence the name. They are classified as single-box or multi-box girder.

[0003] In high-speed railway station buildings, there are situations where some overhead electromechanical pipelines need to pass under the simply supported box girders of the high-speed railway mainline. Supports and hangers need to be installed under the simply supported box girders to secure the pipelines. To prevent damage to the structure of the simply supported box girders, it is not permitted to erect supports and hangers on the simply supported box girders later. Utility Model Content

[0004] Therefore, it is necessary to provide a box girder and formwork structure with embedded plates to overcome the defects mentioned in the background art.

[0005] A box girder with an embedded plate, comprising: Precast box girders; and An embedded part is provided at the bottom of the precast box girder. The embedded part includes a connecting plate and a connecting bar. The connecting plate is attached to the surface of the precast box girder. One end of the connecting bar is connected to the connecting plate, and the other end extends into the precast box girder and is connected to the reinforcing cage.

[0006] As a preferred embodiment of the box girder with embedded plate in this utility model, the size of the connecting plate is larger than the size of the support and hanger connection end.

[0007] As a preferred embodiment of the box girder with embedded plates in this utility model, the connecting plate is made of metal.

[0008] As a preferred embodiment of the box girder with embedded plates in this utility model, the connecting plate is welded to the support and hanger.

[0009] As a preferred embodiment of the box girder with embedded plates in this utility model, the connecting bars are divided into two groups, one group being connected to the transverse bars in the reinforcing cage, and the other group being connected to the longitudinal bars in the reinforcing cage.

[0010] A template structure for casting the aforementioned box girder with embedded plates includes a box girder template, wherein the box girder template has installation grooves at positions corresponding to the embedded parts. The beneficial effects of this utility model are: This utility model connects the pre-embedded parts to the supports and hangers, eliminating the need for drilling or other operations on the precast box girder later, thus preserving its integrity. The connection between the pre-embedded parts and the supports and hangers is close to the precast box girder but not embedded within it, thus not affecting the precast box girder. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of the box girder with embedded plate in the embodiments of this application; Figure 2 This is a schematic diagram of the embedded plate in the embodiments of this application; Explanation of reference numerals in the attached figures: 1000. Precast box girder; 2000, Embedded parts; 2100, Connecting plates; 2200, Connecting ribs. Detailed Implementation

[0013] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0014] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0015] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0016] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0017] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0018] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0019] Example 1 This embodiment provides a box girder with an embedded plate, such as... Figure 1 As shown, it includes a precast box girder 1000 and an embedded part 2000. The embedded part 2000 is arranged at the bottom of the precast box girder 1000 and is connected to the steel cage inside the precast box girder 1000 and is cast together to form a support.

[0020] The embedded part 2000 includes a connecting plate 2100 and a connecting bar 2200. The connecting plate 2100 is attached to the surface of the precast box girder 1000. One end of the connecting bar 2200 is connected to the connecting plate 2100, and the other end extends into the precast box girder 1000 and is connected to the reinforcing cage.

[0021] In this embodiment, the size of the connecting plate 2100 is larger than the size of the support and hanger connecting end, so as to facilitate fixing the support and hanger.

[0022] In this embodiment, the connecting plate 2100 is made of metal and is connected to the support bracket by welding, which is more secure than bolt connection.

[0023] In this embodiment, the connecting bar 2100 is divided into two groups, each group including at least one. One group is connected to the transverse bars in the steel cage, and the other group is connected to the longitudinal bars in the steel cage. This connection method is more stable and firm than simply connecting to the transverse or longitudinal bars.

[0024] Example 2 A template structure for casting the aforementioned box girder with embedded plate includes a box girder template. The box girder template has an installation groove at a position corresponding to the embedded part 2000. The size of the installation groove is the same as the size of the connecting plate 2100.

[0025] During construction, after determining the pipeline locations based on the BIM layout, a plan view of the embedded parts 2000 for the precast box girder is generated. Then, according to the drawings, installation grooves are pre-processed at the corresponding positions on the box girder mold. At the beam fabrication yard, the connecting plate 2100 is fixed to the installation of the precast box girder using RDK. After the steel cage is hoisted in, the connection between the connecting bar and the steel cage is reinforced. After pouring concrete, the box girder with embedded plates is integrally formed. The box girder is transported from the beam yard to the bridge pier. Later, the electromechanical pipeline supports are directly welded to the embedded parts 2000 to complete the pipeline installation process.

[0026] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0027] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A box girder with an embedded plate, characterized in that, include: Precast box girders; as well as An embedded part is provided at the bottom of the precast box girder. The embedded part includes a connecting plate and a connecting bar. The connecting plate is attached to the surface of the precast box girder. One end of the connecting bar is connected to the connecting plate, and the other end extends into the precast box girder and is connected to the reinforcing cage.

2. The box girder with embedded plate according to claim 1, characterized in that, The size of the connecting plate is larger than the size of the support and hanger connection end.

3. The box girder with embedded plate according to claim 2, characterized in that, The connecting plate is made of metal.

4. The box girder with embedded plate according to claim 3, characterized in that, The connecting plate is welded to the support frame.

5. The box girder with embedded plate according to claim 1, characterized in that, The connecting bars are divided into two groups, one group is connected to the transverse bars in the steel cage, and the other group is connected to the longitudinal bars in the steel cage.

6. A template structure for casting a box girder with an embedded plate as described in any one of claims 1-5, comprising a box girder template, characterized in that: The box girder template is provided with an installation groove at the corresponding position of the embedded part.

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