Construction structure of embedded and reserved finished bridge

Abstract

This utility model discloses a construction structure for pre-embedded sections of pre-built cable trays, including a pre-embedded section body mounted on a template. The pre-embedded section body is a rectangular cylinder with multiple pull tab holes on the upper part of one side wall. Angle steel bases are respectively installed on the front and rear sides of the bottom of the pre-embedded section body between it and the template. The angle steel bases are fixedly connected to the template with screws and welded to the pre-embedded section body. Connecting pieces are attached to the inner wall of the contact point between the upper-layer cable tray and the pre-embedded section body. The connecting pieces are fixedly connected to the pull tab holes of the pre-embedded section and the bottom of the upper-layer cable tray with bolts, thus fixing the pre-embedded section body to the upper-layer cable tray. This structure features one-time molding, accurate positioning, straight cable tray installation, and rapid construction: the pre-embedded section is poured simultaneously with the structure, eliminating the need for formwork removal and sealing.

Description

Technical Field

[0001] This utility model relates to the reserved and embedded structure in building electromechanical installation engineering, and is particularly applicable to the embedded construction structure of cable tray openings in electrical shafts. Background Technology

[0002] When designing a building, functionality must be considered, and cables need to be laid between the upper and lower floors. Therefore, it is necessary to pre-embed holes in the reinforced concrete floor slabs. The usual construction method is to use wooden formwork to reserve the holes, and then seal them with fine aggregate concrete or fireproof putty after the cable trays are installed. However, the holes reserved with wooden formwork may have large deviations and cannot be vertically aligned, requiring the holes to be re-drilled, which affects the installation effect. After the formwork is removed, fireproof putty is needed to seal the holes, but it is prone to dehydration and falling off, posing a fire hazard. Floors with waterproofing requirements also need to be waterproofed with a waterproof platform. The inconsistent shrinkage of new and old concrete leads to poor waterproofing. Due to the complicated construction process, secondary sealing and repairs are required, resulting in high labor costs, construction waste, difficulty in controlling construction quality, and low work efficiency. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of existing technologies and provide a pre-embedded construction structure for pre-cast cable trays that allows for simultaneous casting of embedded parts and structures, quick operation, greatly improved construction efficiency, and shortened construction period.

[0004] The technical solution of this utility model:

[0005] This utility model discloses a pre-embedded construction structure for pre-reserved cable trays, comprising a pre-embedded section body of the cable tray set on a template. The pre-embedded section body is a rectangular cylinder. Multiple pull tab holes are opened on the upper part of one side wall of the pre-embedded section body. Angle steel bases are respectively set between the front and rear sides of the bottom of the pre-embedded section body and the template. The angle steel bases are fixedly connected to the template and welded to the pre-embedded section body. Connecting pieces are attached to the inner wall of the contact point between the upper layer cable tray and the pre-embedded section body. The connecting pieces are fixedly connected to the pull tab holes of the pre-embedded section and the bottom of the upper layer cable tray by bolts, so that the pre-embedded section body of the cable tray is fixedly connected to the upper layer cable tray.

[0006] The beneficial effects of this utility model are:

[0007] 1. One-time molding, accurate positioning, straight cable tray installation, and rapid construction: the embedded section is poured simultaneously with the structure, eliminating the need for formwork removal and sealing;

[0008] 2. Cost optimization: It saves on cumbersome procedures and reduces labor and material costs for outer ring fireproof sealing;

[0009] 3. Improved quality and safety; eliminates the need for fireproof sealant, is formed in one step with the concrete structure of the floor slab, and the pre-embedded cable tray reduces the vertical flow of fire and has good fire resistance.

[0010] 4. Reduce cable tray load: Pre-embedded prefabricated cable trays allow for vertical installation of the cable trays. In addition to the fixed supports on the wall, the vertical prefabricated cable trays can also bear the load. Attached Figure Description

[0011] Figure 1 This is a three-dimensional rendering of the construction structure of the pre-embedded and reserved pre-installed cable tray of this utility model;

[0012] Figure 2 This is a three-dimensional structural diagram of the pre-embedded and reserved construction structure of the finished cable tray of this utility model.

[0013] Figure 3 This is an installation diagram of the pre-embedded and reserved construction structure of the finished cable tray of this utility model. Detailed Implementation

[0014] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show the components related to this utility model and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0015] like Figure 1-3 As shown, this utility model discloses a pre-embedded construction structure for a pre-installed cable tray, comprising a pre-embedded section body 1 mounted on a template 5. The pre-embedded section body is a rectangular cylinder, which can be made of cold-rolled steel plate bent and welded. Multiple pull tab holes 3 are opened on the upper part of one side wall of the pre-embedded section body. Angle steel bases 2 are respectively provided on the front and rear sides of the bottom of the pre-embedded section body between it and the template. The angle steel bases are fixedly connected to the template 5 by screws 4 and welded to the pre-embedded section body, forming a single unit that does not require disassembly. The bottom of the upper-layer cable tray 6 is supported on the top wall of the pre-embedded section body. Connecting pieces 7 are attached to the inner wall of the contact point between the upper-layer cable tray and the pre-embedded section body. The connecting pieces 7 are fixedly connected to the pull tab holes 3 of the pre-embedded section and the bottom of the upper-layer cable tray 6 by bolts 8, thus fixing the pre-embedded section body to the upper-layer cable tray 6.

[0016] The construction process for this structure is as follows:

[0017] 1. Fixing the embedded section: According to the position requirements of the drawing, position the cable tray embedded section body 1 on the template 5, and fix the screw 4 through the flange hole on the angle steel base 2 on the template 5.

[0018] 2. Concrete pouring and formwork removal: After pouring the floor slab concrete outside the embedded section body 1, the formwork 5 is removed after the floor slab concrete strength meets the design requirements, and the cable tray embedded section and the floor slab concrete are integrated into a whole.

[0019] 3. Cable tray installation: Connect and fix the connecting piece 7 to the pre-embedded section pull plate hole 3 with bolts 8. Then insert the bottom end of the upper layer cable tray 6 into the upper part of the connecting piece, ensuring that the pull plate hole of the upper layer cable tray 6 is aligned with the hole of the connecting piece 7. Finally, insert bolts 8 to fix it firmly.

[0020] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A construction structure for pre-embedded reservation of a finished bridge, characterized in that: The device includes a cable tray embedded section body for mounting on a template. The cable tray embedded section body is a rectangular cylinder. Multiple pull tab holes are opened on the upper part of one side wall of the cable tray embedded section body. Angle steel bases are respectively provided between the front and rear sides of the bottom of the cable tray embedded section body and the template. The angle steel bases are fixedly connected to the template and welded to the cable tray embedded section body. The bottom of the upper layer cable tray is supported on the top wall of the cable tray embedded section body. Connecting pieces are attached to the inner wall of the contact point between the upper layer cable tray and the cable tray embedded section body. The connecting pieces are fixedly connected to the pull tab holes of the embedded section and the bottom of the upper layer cable tray by bolts, so that the cable tray embedded section body is fixedly connected to the upper layer cable tray.

2. The construction structure of the finished bridge with embedded and reserved construction according to claim 1, characterized in that: The angle steel base and the template are fixedly connected by screws.

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