CN218513704U - Grounding device for thick plate structure foundation - Google Patents
Grounding device for thick plate structure foundation Download PDFInfo
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- CN218513704U CN218513704U CN202222183429.1U CN202222183429U CN218513704U CN 218513704 U CN218513704 U CN 218513704U CN 202222183429 U CN202222183429 U CN 202222183429U CN 218513704 U CN218513704 U CN 218513704U
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Abstract
The utility model relates to the technical field of foundation grounding, and discloses a grounding device of a thick plate structure foundation, which comprises a grounding leading-out device and a grounding unit; the grounding leading-out device comprises a steel pipe, two ends of the steel pipe are opened, and the lower end of the steel pipe extends downwards to the outside of the structural bottom plate; the grounding unit comprises a grounding electrode and a first grounding downlead, the upper end of the first grounding downlead is fixed with the upper main reinforcing steel bars, the side end of the first grounding downlead is fixed with the lower main reinforcing steel bars, the lower end of the first grounding downlead penetrates through the steel pipe and is connected with the grounding electrode, and the lower end of the grounding electrode extends to the outside of the steel pipe. The device of the utility model can avoid burning down the electrical equipment taking grounding measures with the lightning grounding net; and reduce the labor and material costs.
Description
Technical Field
The utility model relates to a basic ground connection technical field especially relates to a earthing device of thick plate structure basis.
Background
At present, 2 common schemes are adopted in the technical field of lightning protection and grounding of thick plate structures: the other method is to weld the upper and lower layer steel bars in the thick plate structure directly and then weld the first grounding down lead and the steel bars in the thick plate structure. However, the bottom of the thick plate structure is usually waterproof treated by a high-density insulating material, which can prevent lightning current from leaking into soil, resulting in too high residual voltage of the lightning grounding network, and thus burning out the electrical equipment taking grounding measures with the lightning grounding network.
The other scheme is that an artificial grounding net is reset below a thick plate foundation, the artificial grounding net is reliably welded with a first grounding down lead at the upper end through a steel bar, and corresponding waterproof treatment is carried out at the position of a thick plate structure. The foundation grounding net is reset below the thick plate structure, the original foundation needs to be dug deeply, the area of the newly-arranged artificial grounding net is several times of that of the building above, a large amount of labor cost and material cost are consumed, and the foundation structure safety of the existing building near the working well can be influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a grounding device of thick plate structure basis to thereby solve thunderbolt electric current and can't release and burn out electrical measure, set up the technical problem that artifical ground net is with high costs.
The utility model discloses a grounding device of a thick plate structure foundation, wherein the thick plate structure foundation comprises a structure bottom plate, and upper main steel bars and lower main steel bars are arranged in the structure bottom plate at intervals; the grounding device comprises a grounding lead-out device and a grounding unit; the grounding leading-out device comprises a steel pipe, two ends of the steel pipe are opened, and the lower end of the steel pipe extends downwards to the outside of the structural bottom plate; the grounding unit comprises a grounding electrode and a first grounding downlead, the upper end of the first grounding downlead is fixed with the upper main reinforcing steel bars, the side end of the first grounding downlead is fixed with the lower main reinforcing steel bars, the lower end of the first grounding downlead penetrates through the steel pipe and is connected with the grounding electrode, and the lower end of the grounding electrode extends to the outside of the steel pipe.
Preferably, the ground lead-out device further comprises a water stop plate, the water stop plate is fixed on the outer periphery of the steel pipe, and the water stop plate is arranged in the structural bottom plate.
Preferably, the water stop plate is welded and fixed with the steel pipe.
As a preferred scheme, the ground lead-out device further comprises an insulating fixing ring, the insulating fixing ring is fixed on the inner wall of the steel pipe, and the insulating fixing ring is provided with a through hole for the first ground lead to pass through.
Preferably, the insulation fixing rings are provided with a plurality of insulation fixing rings, and the plurality of insulation fixing rings are arranged at intervals along the axial direction of the steel pipe.
Preferably, the ground lead-out device further comprises epoxy resin, and the epoxy resin is filled in the steel pipe.
Preferably, the grounding leading-out device further comprises a water stop strip, and the water stop strip is arranged at the intersection of the steel pipe and the bottom of the structural bottom plate.
Preferably, the upper end of the steel pipe is flush with the upper main steel bar.
Preferably, a waterproof protective layer is arranged at the bottom of the structural bottom plate, and the steel pipe penetrates through the waterproof protective layer and extends out of the structural bottom plate.
The embodiment of the utility model provides a grounding device on thick plate structure basis compares with prior art, and its beneficial effect lies in:
the upper end of the first grounding downlead is welded with the upper layer main reinforcing steel bar, the side end of the first grounding downlead is welded with the lower layer main reinforcing steel bar, a steel pipe is arranged in the structural bottom plate, the steel pipe extends out of the structural bottom plate, the lower end of the first grounding downlead penetrates through the steel pipe to be connected with the grounding electrode, and the lower end of the grounding electrode extends out of the steel pipe to be driven into the soil layer, so that lightning current cannot be prevented from being discharged into soil, the residual voltage of the lightning protection grounding network is prevented from being too high, and electric equipment taking grounding measures with the lightning protection grounding network is burnt; the lightning strike current is prevented from puncturing the structural thick plate, the waterproof layer of the structural thick plate is damaged, and further the foundation steel bar is corroded, so that the safety of the structural foundation is affected.
The utility model discloses the device need not reset basic ground net, avoids consuming unnecessary material cost, cost of labor and has caused the influence to foundation structure safety of building near work well.
Drawings
Fig. 1 is a schematic structural view of a grounding device of a thick plate structure foundation according to an embodiment of the present invention;
FIG. 2 is a perspective view of a water stop plate;
FIG. 3 is a diagrammatic illustration of an insulating retainer ring;
fig. 4 is a plan view of a grounding device for a thick plate structure foundation according to an embodiment of the present invention;
in the figure, 1, a structural bottom plate; 11. upper main steel bars; 12. a lower layer of main reinforcing steel bars;
2. a ground lead-out device; 21. a water stop plate; 22. an epoxy resin; 23. an insulating fixing ring; 24. a steel pipe;
3. a grounding unit; 31. a first ground down conductor; 32. a ground electrode;
4. a ground lead; 41. a second ground down conductor; 42. a special down conductor; 43. a third ground down conductor;
5. lightning down lead;
6. and a ground line.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1, the grounding device for a thick plate structure foundation according to the preferred embodiment of the present invention includes a structure bottom plate 1, wherein upper main steel bars 11 and lower main steel bars 12 are disposed in the structure bottom plate 1 at intervals from top to bottom; the grounding device comprises a grounding lead-out device 2 and a grounding unit 3.
The grounding leading-out device 2 comprises a steel pipe 24, the steel pipe is a nonmagnetic steel pipe 24, two ends of the nonmagnetic steel pipe 24 are open, and the lower end of the nonmagnetic steel pipe 24 extends downwards to the outside of the structural bottom plate 1; the outer wall of the non-magnetic steel pipe 24 is coated with antirust paint, so that the steel pipe is prevented from rusting, the adhesive force of the coating is increased, and the steel pipe can be effectively isolated from being contacted with air.
The grounding unit 3 comprises a grounding electrode 32 and a first grounding down lead 31, the first grounding down lead 31, namely the grounding electrode 32, leads out a lead connected with the structural bottom plate 1, the upper end of the first grounding down lead 31 is flush with the upper layer of main steel bars 11, and the upper end of the first grounding down lead 31 is reliably welded with the upper layer of main steel bars 11; after the upper end of the first grounding downlead 31 is welded with the upper layer main reinforcing steel bars 11, the upper end of the first grounding downlead is bent for 90 degrees twice to obtain a first grounding downlead 31 side end parallel to the upper layer main reinforcing steel bars, the first grounding downlead 31 side end is reliably welded with the lower layer main reinforcing steel bars 12, and the reliable welding is that the main reinforcing steel bars in the structural bottom plate 1 are mutually welded to reach grounding lightning protection.
Wherein, the lower extreme of first ground connection downlead 31 passes non-magnetic steel pipe 24 and with earthing pole 32 is connected, the lower extreme of earthing pole 32 extends to non-magnetic steel pipe 24's outside, earthing pole 32 is the conductor of direct and soil contact promptly. The length of the grounding unit 3 led out of the structural bottom plate 1 is not less than 2.5m. After the first grounding downlead 31 is constructed, the conductor surface of the grounding electrode 32 of the leading-out structure bottom plate 1 is coated with green and yellow stripes with equal width, so that rusting can be prevented, and identification is facilitated.
The upper end of a first grounding downlead 31 is welded with an upper layer main steel bar 11, the side end of the first grounding downlead 31 is welded with a lower layer main steel bar 12, a steel pipe 24 is arranged in a structural bottom plate 1, the steel pipe 24 extends out of the structural bottom plate 1, the lower end of the first grounding downlead 31 penetrates through the steel pipe 24 to be connected with a grounding electrode 32, the lower end of the grounding electrode 32 extends out of the steel pipe 24 to be driven into a soil layer, so that lightning current cannot be prevented from being discharged into soil, and the residual voltage of a lightning protection grounding network is prevented from being too high, so that electrical equipment taking grounding measures with the lightning protection grounding network is burnt; the lightning strike current is prevented from puncturing the structural thick plate, the waterproof layer of the structural thick plate is damaged, and further the foundation steel bar is corroded, so that the safety of the structural foundation is affected. And, the utility model discloses the device need not reset basic ground net, avoids consuming unnecessary material cost, cost of labor and has caused the influence to foundation structure safety of building near the work well.
Wherein, ground connection eduction gear 2 still includes sealing plate 21, sealing plate 21 welding is at 24 periphery sides of non-magnetism nature steel pipe, does not allow the infiltration, just sealing plate 21 set up in 1 central authorities of structure bottom plate, sealing plate 21 sets up the ring shape steel sheet of through-hole for the centre, can be used to the construction cold joint below the groundwater level line to carry out water repellent. The welding form between the water stop plate 21 and the nonmagnetic steel pipe 24 adopts full welding, which is to weld all the contact places of the two workpieces, and is generally used for places requiring high welding strength.
The grounding leading-out device 2 further comprises an insulating fixing ring 23, and the insulating fixing ring 23 is embedded in the inner wall of the nonmagnetic steel pipe 24 and is not allowed to slide; the insulating fixing ring 23 is provided with a through hole through which the first ground down-lead 31 passes.
Wherein, the fixed ring of insulation 23 has a plurality ofly, a plurality of the fixed ring of insulation 23 is followed the axial interval of non-magnetic steel pipe 24 arranges, sets up the fixed ring of a plurality of insulation 23 and can make the fixed more firm of first ground connection downlead 31 in non-magnetic steel pipe 24. In this embodiment, three insulating fixing rings 23 are provided, and the three insulating fixing rings 23 are distributed on the upper portion, the middle portion, and the lower portion of the nonmagnetic steel pipe 24.
The grounding leading-out device 2 further comprises epoxy resin 22, the epoxy resin 22 is densely filled in the nonmagnetic steel pipe 24, the epoxy resin 22 has good bonding strength and insulating property, and can have insulating and anti-skidding functions when being used in combination with the insulating fixing ring 23.
The grounding leading-out device 2 further comprises a water stop strip, and the water stop strip is arranged at the intersection of the nonmagnetic steel pipe 24 and the bottom of the structural bottom plate 1. The water stop bar is preferably a water-swelling putty water stop bar which has the performance of self-swelling when meeting water, and the water stopping and preventing effects are more reliable than those of common rubber. The water-swellable putty can generate 2-3 times of swelling deformation after meeting water, and can generate huge contact pressure while filling irregular surfaces, cavities and gaps of the joint to prevent leakage.
Wherein, the upper end of the non-magnetic steel pipe 24 is flush with the upper layer main steel bar 11.
The bottom of the structural bottom plate 1 is provided with a waterproof protective layer, the nonmagnetic steel pipe 24 penetrates through the waterproof protective layer and extends out of the structural bottom plate 1, and the length of the nonmagnetic steel pipe 24 led out of the structural bottom plate 1 and driven into a soil layer can be correspondingly adjusted according to the thickness of the structural bottom plate. In this embodiment, the lower end of the nonmagnetic steel pipe 24 extends downward beyond the structural bottom plate 1 by a distance of 150mm.
As shown in fig. 4, a ground device layout diagram of a thick plate structure foundation according to a preferred embodiment of the present invention, wherein the second ground lead 41 is the ground lead 4 connected to the building ground unit of the distribution substation; the grounding lead-up wire 42 can be arranged to the fire-fighting equipment room along a column or a wall through a protection pipe in a concealed mode; the third ground down lead 43 is the ground lead 4 in which the voltage equalizing belt in the tunnel is coupled to the building ground unit. The upper parts of two main ribs at the opposite angles in the structural column or the shear wall are welded with the lightning receiving net, and the lower parts of the two main ribs are welded with the grounding bus of the structural bottom plate 1. The ground wire 6 and the upper main steel bars 11 and the upper main steel bars 12 of the structural bottom plate 1 are usually welded to form a bottom plate grounding grid, the cross part of the horizontal section of the ground wire 6 is welded, and the vertical cross part of the ground wire 6 adopts the existing vertical steel bars in the structural bottom plate 1 to weld the upper main steel bars 11 and the lower main steel bars 12.
To sum up, the embodiment of the present invention provides a grounding device for a thick plate structure foundation, which will not block the discharge of lightning strike current, and can avoid the electrical equipment that is burned out due to the over-high residual voltage of the lightning protection grounding network and takes grounding measures with the lightning protection grounding network; the lightning strike current is prevented from puncturing the structural thick plate, the waterproof layer of the structural thick plate is damaged, and further the foundation steel bar is corroded, so that the safety of the structural foundation is affected.
The utility model discloses a grounding device on thick plate structure basis can be at the scene according to the preparation of specific specification, and the subassembly can replace with all the other metals of the same current-carrying capacity or all the other specifications of this metal, effectively reduces manual work, material cost.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be considered as the protection scope of the present invention.
Claims (9)
1. The utility model provides a grounding device of thick plate structure basis, wherein, thick plate structure basis includes structure bottom plate (1), the interval is provided with upper main reinforcing bar (11) and lower floor main reinforcing bar (12) about in structure bottom plate (1), its characterized in that:
the grounding device comprises a grounding leading-out device (2) and a grounding unit (3);
the grounding leading-out device (2) comprises a steel pipe (24), two ends of the steel pipe (24) are opened, and the lower end of the steel pipe (24) extends downwards to the outside of the structural bottom plate (1);
grounding unit (3) include earthing pole (32) and first ground connection downlead (31), first ground connection downlead (31) upper end with upper main reinforcement (11) are fixed, first ground connection downlead (31) side with lower floor's main reinforcement (12) are fixed, the lower extreme of first ground connection downlead (31) passes steel pipe (24) and with earthing pole (32) are connected, the lower extreme of earthing pole (32) extends to the outside of steel pipe (24).
2. The grounding device for the foundation of thick plate structure of claim 1, wherein: the grounding leading-out device (2) further comprises a water stop plate (21), the water stop plate (21) is fixed on the outer periphery side of the steel pipe (24), and the water stop plate (21) is arranged in the structural bottom plate (1).
3. The grounding device for the foundation of thick plate structure of claim 2, wherein: the water stop plate (21) is welded and fixed with the steel pipe (24).
4. The grounding device for the foundation of thick plate structure of claim 1, wherein: the grounding leading-out device (2) further comprises an insulating fixing ring (23), the insulating fixing ring (23) is fixed on the inner wall of the steel pipe (24), and the insulating fixing ring (23) is provided with a through hole for the first grounding down lead (31) to pass through.
5. The grounding device of a thick plate structure foundation as claimed in claim 4, wherein: the insulation fixing rings (23) are multiple, and the insulation fixing rings (23) are arranged at intervals along the axial direction of the steel pipe (24).
6. The grounding device for the foundation of thick plate structure of claim 1, wherein: the grounding leading-out device (2) further comprises epoxy resin (22), and the epoxy resin (22) is filled in the steel pipe (24).
7. The grounding device for the foundation of thick plate structure of claim 1, wherein: the grounding lead-out device (2) further comprises a water stop strip, and the water stop strip is arranged at the intersection of the steel pipe (24) and the bottom of the structural bottom plate (1).
8. The grounding device for a substructure of a thick plate as claimed in claim 1, wherein: the upper end of the steel pipe (24) is flush with the upper layer main steel bar (11).
9. The grounding device for the foundation of thick plate structure of claim 1, wherein: the bottom of the structural bottom plate (1) is provided with a waterproof protective layer, and the steel pipe (24) penetrates through the waterproof protective layer and extends out of the structural bottom plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222183429.1U CN218513704U (en) | 2022-08-18 | 2022-08-18 | Grounding device for thick plate structure foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222183429.1U CN218513704U (en) | 2022-08-18 | 2022-08-18 | Grounding device for thick plate structure foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218513704U true CN218513704U (en) | 2023-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222183429.1U Active CN218513704U (en) | 2022-08-18 | 2022-08-18 | Grounding device for thick plate structure foundation |
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| CN (1) | CN218513704U (en) |
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2022
- 2022-08-18 CN CN202222183429.1U patent/CN218513704U/en active Active
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