CN219218657U

CN219218657U - Bridge lightning protection grounding installation device

Info

Publication number: CN219218657U
Application number: CN202320279505.0U
Authority: CN
Inventors: 何力; 肖平; 李虎; 李学友; 张涛勇
Original assignee: China Railway Jilin Investment And Construction Co ltd; China Railway Erju 4th Engineering Co Ltd
Current assignee: China Railway Jilin Investment And Construction Co ltd; China Railway Erju 4th Engineering Co Ltd
Priority date: 2023-02-21
Filing date: 2023-02-21
Publication date: 2023-06-20
Anticipated expiration: 2033-02-21

Abstract

The utility model relates to the technical field of lightning protection grounding, and provides a bridge lightning protection grounding installation device which aims at the problems of high assembly risk and low construction efficiency of the existing lightning protection grounding device and comprises a plurality of vertically arranged main ribs and a middle tie beam horizontally erected among the plurality of main ribs, wherein bearing platforms are arranged at the tops of the plurality of main ribs; the surface of cushion cap disposes the assembly bench, the surface of cushion cap with the bottom surface of assembly bench can dismantle the connection, the surface of assembly bench inlays and is equipped with protection network pre-buried steel sheet. According to the bridge lightning-protection grounding installation device, the original main reinforcement of the pile foundation or the pier stud is utilized to achieve the lightning-protection effect, the operation is simple, the construction is safe, and the grounding installation can be rapidly completed in the reinforcement installation process.

Description

Bridge lightning protection grounding installation device

Technical Field

The utility model relates to the technical field of lightning protection grounding, in particular to a bridge lightning protection grounding installation device.

Background

Lightning protection grounding refers to lightning protection and electrostatic grounding, lightning protection refers to preventing lightning strike from damaging buildings and the like, and electrostatic grounding refers to preventing static electricity from generating harm. The device for lightning protection grounding mainly comprises a down lead, a grounding wire and a grounding body, wherein when the device is used, the grounding body, a grounding trunk line, a bracket, the down lead, a lightning rod, a lightning protection net, namely a lightning protection belt or a grading ring, are required to be installed on site in sequence.

However, for installing a lightning protection grounding device under special geographical environments such as a dangerous situation, for example, a patent with publication number of CN114892497a, a lightning protection grounding device for an assembled bridge and a construction method thereof are disclosed, complex assembly work needs to be performed at the position of the bridge, the installation risk is high, and the construction efficiency is low.

Therefore, there is an urgent need for a lightning protection grounding installation apparatus with higher assembly safety, which is applicable to bridges.

Disclosure of Invention

The utility model aims to solve the problems of high assembly risk and low construction efficiency of the traditional lightning grounding device. The application provides a bridge lightning protection ground connection installation device, through improving pier assembly department etc. for the installation operation is more simple and convenient, and the construction security is higher.

The utility model is realized by the following technical scheme:

the lightning protection grounding installation device for the bridge comprises a plurality of main ribs which are vertically arranged, and a middle tie beam which is horizontally erected among the plurality of main ribs, wherein bearing platforms are arranged at the tops of the plurality of main ribs; the surface of cushion cap disposes the assembly bench, the surface of cushion cap with the bottom surface of assembly bench can dismantle the connection, the surface of assembly bench inlays and is equipped with protection network pre-buried steel sheet.

Preferably, the periphery of the bearing platform is provided with a protection bulge, the surface of the bearing platform is provided with a plurality of cushion stones, the bottom of the assembly platform is provided with a plurality of supporting beams, the positions and the number of the supporting beams are in one-to-one correspondence with the cushion stones, and one supporting beam is detachably connected with one corresponding cushion stone.

Preferably, the surface of the bolster is provided with a connection steel plate through which the support beam and the bolster can be connected.

Preferably, the surface of the supporting beam is wound with conductive steel bars.

Preferably, a fixed steel plate is pre-buried at the top of the main reinforcement, and the fixed steel plate can connect the main reinforcement and the bearing platform.

Preferably, the main reinforcement is embedded with a grounding reinforcement welded with the fixed steel plate.

Preferably, the welding length of the grounding steel bar and the fixed steel plate is more than 80 mm.

Preferably, the middle tie beam surface is provided with a support steel plate.

The technical scheme of the utility model has the following beneficial effects:

compared with the existing common external grounding installation mode, the bridge lightning protection grounding installation device has the following beneficial effects: (1) the original main reinforcement of the pile foundation or pier stud is utilized, grounding reinforcement bars and the like are penetrated to achieve the lightning protection effect, the operation is simple, the construction is safe, and the grounding installation can be rapidly completed in the reinforcement bar installation process; (2) the post-maintenance work of a large amount of after having avoided the installation to finish, the electric current is conducted to pile foundation top main muscle by the main muscle of mound post top, inserts former ground again, and main muscle and continuous embedded steel sheet are all wrapped up by concrete, can effectively avoid the device to use impaired.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic sectional view of a lightning protection grounding installation apparatus for a bridge in embodiment 1.

Icon: 1-main reinforcement, 11-fixed steel plates, 12-grounding steel bars, 2-middle tie beams, 21-supporting steel plates, 3-bearing platforms, 31-protection protrusions, 32-filler stones, 33-connecting steel plates, 4-assembly platforms, 41-protection net embedded steel plates, 42-supporting beams and 43-conductive steel bars.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Example 1

As shown in fig. 1, the embodiment provides a lightning protection grounding installation device for a bridge, which comprises two main ribs 1 arranged vertically and a middle tie beam 2 arranged between the two main ribs 1 in a horizontal manner, wherein bearing platforms 3 are arranged at the tops of the two main ribs 1; the surface of the bearing platform 3 is provided with an assembly table 4, the surface of the bearing platform 3 is detachably connected with the bottom surface of the assembly table 4, and the surface of the assembly table 4 is embedded with a protection net embedded steel plate 41. When the lightning protection grounding device is used, the lightning protection grounding device can be directly lapped on the assembly table 4 and is connected and fixed through a steel plate and the like.

In this embodiment, the outer periphery of the bearing platform 3 is provided with the protection protrusions 31, the surface of the bearing platform 3 is provided with a plurality of cushion stones 32, the bottom of the assembly platform 4 is provided with a plurality of support beams 42, the positions and the number of the support beams 42 are in one-to-one correspondence with the cushion stones 32, the surface of the cushion stones 32 is provided with the connecting steel plates 33, and one support beam 42 and one corresponding cushion stone 32 can be connected through the connecting steel plates 33; the surface of the support beam 42 is wound with conductive bars 43 to achieve conductivity.

In this embodiment, the surface of the bearing platform 3 is concavely provided with a mounting groove 31, the bottom surface of the assembly table 4 is convexly provided with a mounting seat 42, the bottom of the mounting groove 31 is inserted with a connecting steel bar 32, and the mounting groove 31 is connected with the mounting seat 42 through the connecting steel bar 32. The top of the main reinforcement 1 is embedded with a fixed steel plate 11, the fixed steel plate 11 can connect the main reinforcement 1 and the bearing platform 3, and the size of the fixed steel plate 11 is 120 x 6mm.

In this embodiment, the grounding bar 12 is buried in the main bar 1, the grounding bar 12 is welded to the fixed steel plate 11, and the welding length between the grounding bar 12 and the fixed steel plate 11 is controlled to be about 100mm, and the grounding bar is marked. The lightning protection of the protective screen is realized by welding the main reinforcement 1 of the bridge pier with the reinforcing steel bars in the pile foundation.

In this embodiment, the support steel plate 21 is disposed on the surface of the middle tie beam 2, and the support steel plate 21 is welded with the middle tie beam 2 to improve stability and compression resistance of the support members such as the main rib 1, and the size of the support steel plate 21 is 120×120×6mm.

In the embodiment, the bottoms of two main ribs 1 are provided with common bridge fixing and supporting components such as pile foundations, bridge piers and the like, steel plates are pre-embedded at two sides of the pile foundation bottom, and are led out by a lower layer of reinforcing steel bar net; the pier body extending into the main rib 1 can be properly extended to the upper end and welded with the embedded steel plate, the size of the embedded steel plate is 120 x 6mm, and the embedded steel plate is arranged on the outer side of the pier in the direction perpendicular to the central line of the line and is tightly attached to the top surface of the pier; the grounding resistance is controlled to be smaller than 4Ω, the resistance is measured firstly after the pier grounding steel bars 12 are manufactured, and when the resistance cannot meet the requirement, the grounding grid should be lapped around the pier, and the grounding grid is welded with the pier embedded steel plates. The components such as pile foundation are not used as the main improvement and protection content of the utility model, so the concrete limitation is not carried out, and the existing bridge and the like can be directly applied by the person skilled in the art.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The lightning protection grounding installation device for the bridge is characterized by comprising a plurality of main ribs (1) which are vertically arranged and a middle tie beam (2) which is horizontally erected among the plurality of main ribs (1), wherein bearing platforms (3) are arranged at the tops of the plurality of main ribs (1);

the surface of cushion cap (3) disposes assembly bench (4), the surface of cushion cap (3) with the bottom surface of assembly bench (4) can dismantle and be connected, the surface of assembly bench (4) inlays and is equipped with protection network pre-buried steel sheet (41).

2. The bridge lightning-protection grounding installation device according to claim 1, wherein a protection protrusion (31) is configured on the periphery of the bearing platform (3), a plurality of stones (32) are configured on the surface of the bearing platform (3), a plurality of supporting beams (42) are configured on the bottom of the assembly platform (4), the positions and the number of the supporting beams (42) are in one-to-one correspondence with the stones (32), and one supporting beam (42) is detachably connected with one corresponding stone (32).

3. The bridge lightning grounding installation apparatus according to claim 2, wherein the surface of the filler stone (32) is provided with a connection steel plate (33), and the support beam (42) and the filler stone (32) are connectable through the connection steel plate (33).

4. The bridge lightning grounding installation apparatus according to claim 2, wherein the surface of the support beam (42) is wound with conductive reinforcing bars (43).

5. The bridge lightning-protection grounding installation device according to any one of claims 1 to 4, wherein a fixed steel plate (11) is pre-embedded at the top of the main rib (1), and the fixed steel plate (11) can connect the main rib (1) and the bearing platform (3).

6. The bridge lightning protection grounding installation device according to claim 5, wherein the main reinforcement (1) is embedded with a grounding reinforcement (12), and the grounding reinforcement (12) is welded with the fixed steel plate (11).

7. The bridge lightning protection grounding installation apparatus according to claim 6, wherein the welding length of the grounding steel bar (12) and the fixed steel plate (11) is 80mm or more.

8. The bridge lightning grounding installation apparatus according to claim 1, wherein the surface of the middle tie beam (2) is provided with a supporting steel plate (21).