CN214590505U - Lightning protection downlead structure of prefabricated building - Google Patents
Lightning protection downlead structure of prefabricated building Download PDFInfo
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- CN214590505U CN214590505U CN202022451660.5U CN202022451660U CN214590505U CN 214590505 U CN214590505 U CN 214590505U CN 202022451660 U CN202022451660 U CN 202022451660U CN 214590505 U CN214590505 U CN 214590505U
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Abstract
The utility model discloses a lightning protection down lead structure of an assembly type building, which is applied to the assembly type building with at least two layers; the lightning arrester is characterized by comprising a plurality of metal conductors embedded in a vertical stress member, lightning receptors and a grounding device, wherein the top ends and the bottom ends of the metal conductors are respectively exposed out of the top surface and the bottom side surface of the vertical stress member, the two metal conductors embedded in the vertical stress member adjacent to each other up and down are connected together, the metal conductors embedded in the vertical stress member at the topmost end are connected with the lightning receptors, the metal conductors embedded in the vertical stress member at the bottommost end are connected with the grounding device, a groove is reserved in the bottom side surface of the vertical stress member, and the bottom ends of the metal conductors are exposed out of the groove. In the scheme, the end parts of the two metal conductors embedded in the vertical stress members adjacent to each other up and down are connected, and the two metal conductors are connected together, so that the construction is simple and convenient, the installation efficiency is high, and the fault tolerance rate is high; the whole lightning protection downlead structure can not break the point, and the building security is high.
Description
Technical Field
The utility model belongs to the technical field of the building, specifically speaking, the utility model relates to a lightning protection downlead structure of assembly type structure.
Background
In order to prevent the building from being struck by lightning, the high-rise building requires to install a lightning protection device so as to meet the requirements of preventing direct lightning, preventing lightning surge intrusion and lightning electromagnetic pulse. The down conductor is an important component of the lightning protection device, and two through long longitudinal steel bars in a reinforced concrete column or a shear wall are used as the down conductor in the prior art.
However, in the fabricated building, prefabricated parts (PC parts) are produced in a factory, transported to a construction site, overlapped by reinforcing bars, and cast in place to form a whole. In the construction of the fabricated building, the prefabricated frame columns are produced in a factory, the upper and lower adjacent prefabricated frame columns/shear walls are connected with the sleeves through longitudinal steel bars, and finally, the prefabricated frame columns/shear walls are grouted into a whole. According to the construction method, the longitudinal steel bars between the upper prefabricated frame column and the lower prefabricated frame column/the shear wall are anchored together through the slurry in the sleeve and are not directly communicated, so that a continuous conductor cannot be formed between the longitudinal steel bars in the upper prefabricated frame column and the lower prefabricated frame column/the shear wall, and a lightning horizontal passage is difficult to form.
At present, a lightning protection device for an assembled prefabricated frame column is characterized in that a metal conductor is preset in the prefabricated frame column, the metal conductor longitudinally penetrates through the prefabricated frame column, an upper prefabricated frame column and a lower prefabricated frame column are fixedly connected at a building floor, the upper and lower adjacent metal conductors are bent and welded with each other in the building floor, and the upper end of the metal conductor in the topmost prefabricated frame column is connected with a lightning receptor. The construction operation that two adjacent metal conductors of upper and lower buckle and weld each other exists as follows: firstly, a narrow environment is formed after the upper prefabricated frame column and the lower prefabricated frame column are butted, and metal conductors are difficult to weld; secondly, due to construction errors or hoisting errors, the bending angles are different, and finally, two metal conductors which are adjacent to each other up and down cannot be aligned and welded; thirdly, after the bending welding, the metal conductors need to be densely grouted and wrapped, and the welding parts may crack during grouting construction, so that finally, a plurality of metal conductors cannot form a continuous conductor. The problems not only increase the construction period, but also increase the construction cost and bring about potential safety hazards.
In summary, it is desirable to provide a lightning down conductor structure of an assembly building to solve the technical problems in the prior art.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the lightning protection down lead structure of the fabricated building is provided to solve the technical problems in the prior art.
In order to realize the purpose, the utility model discloses the technical scheme who takes does:
a lightning protection down lead structure of an assembly type building is applied to the assembly type building with at least two layers; the lightning arrester comprises a plurality of metal conductors embedded in a vertical stress member, a lightning arrester and a grounding device, wherein the top end and the bottom end of each metal conductor are respectively exposed out of the top surface and the bottom side surface of the vertical stress member, the two metal conductors embedded in the vertical stress member are connected together in an upper adjacent mode and a lower adjacent mode, the metal conductors embedded in the vertical stress member at the topmost end are connected with the lightning arrester, the metal conductors embedded in the vertical stress member at the bottommost end are connected with the grounding device, a groove is reserved in the bottom side surface of the vertical stress member, and the bottom end of each metal conductor is exposed out of the groove.
On the basis of the scheme, in another improved scheme, the metal conductors embedded in the vertical stress members which are adjacent up and down are fixedly connected together through welding.
On the basis of the scheme, in another improved scheme, the metal conductors embedded in the vertical stress members which are adjacent up and down are fixedly connected together through connecting pieces.
On the basis of the above scheme, in another improved scheme, a longitudinal bar is embedded in the vertical stressed member, the metal conductor is embedded in concrete on the periphery of the longitudinal bar, and the length of the metal conductor extending out of the top end surface of the vertical stressed member is smaller than the length of the longitudinal bar extending out of the top end surface of the vertical stressed member.
On the basis of the above scheme, in another modified scheme, the connecting piece includes nut and swivel nut, swivel nut swing joint in metal conductor's one end, the nut is connected metal conductor's the other end, and upper and lower adjacent link through between the pre-buried metal conductor in the vertical stress component nut and swivel nut link together.
On the basis of the scheme, in another improved scheme, the outer wall of the screw cap is provided with external threads, and the inner wall of the screw sleeve is provided with internal threads.
On the basis of the scheme, in another improved scheme, a metal sheet is fixed at the end part of the metal conductor connected with the nut, the metal sheet is perpendicular to the metal conductor, and the diameter of the metal sheet is between the diameter of the metal conductor and the inner diameter of the screw sleeve.
On the basis of the scheme, in another improved scheme, a plurality of vertical ribs which are vertically distributed are embedded in the vertical stress member, the top ends of the vertical ribs extend out of the top end of the vertical stress member, and a plurality of grouting sleeves are embedded at the bottom end of the vertical stress member; when the vertical stress components adjacent to each other are connected, the top ends of the longitudinal ribs of the vertical stress components below extend into the grouting sleeves of the vertical stress components above one another.
The technical scheme of the utility model the beneficial technological effect who gains is:
the utility model discloses an assembly type structure's lightning protection downlead structure, after upper and lower adjacent vertical stress component hoists, pre-buried two metal conductor's in upper and lower adjacent vertical stress component tip meets, links together between two metal conductor. Therefore, the method is convenient for site construction, high in installation efficiency, easy to disassemble and high in fault tolerance rate; the prefabricated part is simple to produce and manufacture and low in cost; breakpoint can not appear in whole lightning protection downlead structure, and the building security is high.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation.
Fig. 1 is a schematic connection diagram of two adjacent prefabricated columns and their embedded metal conductors in embodiment 1;
FIG. 2 is a vertical cross-sectional view of FIG. 1;
FIG. 3 is a schematic structural view of the prefabricated column of FIG. 1;
fig. 4 is a schematic connection diagram of two adjacent prefabricated columns and their embedded metal conductors in embodiment 2;
fig. 5 is a schematic connection diagram of metal conductors embedded in two adjacent prefabricated columns in embodiment 2;
fig. 6 is a schematic view of the installation of two metal conductors and connectors in fig. 5.
Reference numerals:
1-first prefabricated column 2-second prefabricated column 3-first metal conductor
4-second metal conductor 5-groove 6-longitudinal bar
7-third prefabricated column 8-fourth prefabricated column
10-cast-in-place area 11-third metal conductor 12-fourth metal conductor
13-connecting piece 14-thread insert 15-nut
16-sheet metal 17-weld zone
Detailed Description
The present invention will be described in detail with reference to the drawings, which are provided for illustrative and explanatory purposes only and should not be construed as limiting the scope of the present invention in any way. Furthermore, features from embodiments in this document and from different embodiments may be combined accordingly by a person skilled in the art from the description in this document.
Example 1
Referring to the illustrations of fig. 1 to 3, the lightning protection down conductor structure of the prefabricated building in the present embodiment is applied to a prefabricated building having at least two floors; including many pre-buried metallic conductor in vertical atress component, arrester and earthing device, metallic conductor's top and bottom expose respectively in the top surface and the bottom side of vertical atress component, be in the same place through welded fastening between the pre-buried metallic conductor in the upper and lower adjacent vertical atress component, pre-buried metallic conductor is connected with the arrester in the vertical atress component of top, pre-buried metallic conductor is connected with earthing device in the vertical atress component of bottom, the recess is reserved to the bottom side of vertical atress component, metallic conductor's bottom exposes from the recess. In this embodiment, the vertical stress member is specifically a prefabricated column, and the metal conductor is embedded in concrete when the prefabricated column is produced in a factory. In other embodiments, the vertical force-bearing member may also be a prefabricated shear wall. Referring also to fig. 1 and 2, the side of the bottom end of the prefabricated column is provided with a groove 5, and the bottom end of the metal conductor is exposed from the groove 5. By the arrangement, the extended upper and lower metal conductors can be intersected at the groove 5 of the upper prefabricated column, the connection is convenient, mortar is filled in the groove 5 at the back, and the construction operation is simple.
Referring to the structure of the second prefabricated column 2 in the present embodiment shown in fig. 3 (the structure of the first prefabricated column 1 is the same as that of the second prefabricated column 2), a plurality of longitudinal ribs 6 are anchored inside the second prefabricated column 2, and the top ends of the plurality of longitudinal ribs 6 protrude out of the top side surface of the prefabricated column. At the bottom end of the second prefabricated column 2 a grout sleeve (not visible in fig. 3) is anchored, the bottom end of which is flush with the bottom end of the second prefabricated column. Referring to fig. 2 and fig. 3, when the first prefabricated column 1 is hoisted and placed above the second prefabricated column 2, the plurality of longitudinal bars 6 of the second prefabricated column 2 are inserted into the grouting sleeve at the bottom end of the first prefabricated column 1 one by one, and high-strength mortar is poured into the grouting sleeve to connect the longitudinal bars 6 and the grouting sleeve together. And a second metal conductor 4 is embedded in the second prefabricated column 2, and the top end of the second metal conductor 4 extends out of the top end of the second prefabricated column 2. Referring to fig. 2, a first metal conductor 3 is embedded in a first prefabricated column 1, the bottom end of the first metal conductor 3 is exposed out of the bottom end side surface of the first prefabricated column 1, when the first prefabricated column 1 is connected with a second prefabricated column 2, the top end of the first metal conductor 3 and the bottom end of the second metal conductor 4 are overlapped with each other to form a welding area 17, and the welding areas of the first metal conductor 3 and the second metal conductor 4 are welded and fixed together by a worker by using a welding gun. Because the top end and the bottom end of the metal conductor pre-buried in the prefabricated column are respectively exposed out of the side surfaces of the top end and the bottom end of the prefabricated column, after the upper prefabricated column and the lower prefabricated column are connected, the connection between the two metal conductors is just on the side surface of the prefabricated column, so that the site construction operation is convenient, the connecting area between the two metal conductors avoids a floor slab concrete cast-in-place area 10, the two metal conductors cannot deform due to the concrete casting process, the connection reliability between a plurality of metal conductors in the connecting process of the multilayer prefabricated column is ensured, the installation efficiency is improved, and the safety performance of a building is ensured.
On the basis of the scheme, in another improved scheme, the longitudinal bars 6 are embedded in the prefabricated columns, the metal conductors are embedded in concrete on the peripheries of the longitudinal bars 6, and the length of the metal conductors extending out of the top end surfaces of the vertical stress members is smaller than the length of the longitudinal bars 6 extending out of the top end surfaces of the vertical stress members. With the arrangement, when the prefabricated columns which are adjacent to each other are installed, the installation of the longitudinal ribs 6 cannot influence the installation of the metal conductor.
Example 2
Referring to fig. 4 to 6, the lightning protection downlead structure of the prefabricated building of the present embodiment includes a plurality of metal conductors embedded in the vertical stressed member, a lightning receptor and a grounding device, the top ends and the bottom ends of the metal conductors are respectively exposed to the top surface and the bottom side surface of the vertical stressed member, the metal conductors embedded in the vertical stressed members adjacent to each other up and down are fixedly connected together through a connecting member 13, the metal conductors embedded in the vertical stressed member at the top end are connected to the lightning receptor, and the metal conductors embedded in the vertical stressed member at the bottom end are connected to the grounding device. The vertical stress member in the embodiment is a prefabricated column, the connection mode between the upper and lower adjacent prefabricated columns is the same as that in the embodiment 1, and the vertical stress member is also connected with the embedded grouting sleeve through the embedded longitudinal ribs 6. In this embodiment, a third prefabricated column 7 is located at the upper part, and a fourth prefabricated column 8 is located at the lower part, wherein a third metal conductor 11 is embedded in the third prefabricated column 7, a fourth metal conductor 12 is embedded in the fourth prefabricated column 8, the top end of the third metal conductor 11 extends out of the top surface of the third prefabricated column 7, and the bottom end of the fourth metal conductor 12 is exposed out of the groove 5 on the bottom end side surface of the fourth prefabricated column 8. The top end of the third metal conductor 11 and the bottom end of the fourth metal conductor 12 are connected together by a connecting piece 13. In order to ensure the electrical conductivity between the two metal conductors connected by the connecting element 13, the connecting element 13 is likewise made of an electrically conductive metal. By adopting the connecting piece 13 to connect the two metal conductors, the convenience of the connection operation between the two metal conductors is further improved, and the phenomenon that the welding area 17 of the two metal conductors is easy to fall off or peel off in the building construction process is also avoided. The prefabricated columns in the embodiment can also be replaced by prefabricated shear walls.
On the basis of the scheme, in another improved scheme, a precast beam is further arranged between the third precast column and the fourth precast column. And the bottom sides of the end heads of the 3 precast beams are respectively placed on the top surface of the fourth precast column, an area surrounded by the end heads of the 3 precast beams on the top surface of the fourth precast column forms a concrete current area, and concrete is poured into the concrete current area and cured and molded to complete the connection between the 3 precast beams and the fourth precast column. In order to ensure the connection between the fourth metal conductor in the fourth prefabricated column and the third metal conductor in the third prefabricated column, the length of the fourth metal conductor exposed out of the top side surface of the fourth prefabricated column exceeds the thickness of the cast-in-place area. In other embodiments, 2 precast beams or 4 precast beams can be placed according to the requirement of building design. The connection method of the third preformed column and the fourth preformed column is the same as that of the above embodiment, and the connection method of the third metal conductor and the fourth metal conductor is the same as that of the above embodiment, and is not described again here.
Referring to fig. 6, on the basis of the above scheme, in another improved scheme, the connecting piece 13 comprises a nut 15 and a nut 14 which can be connected together through threads, the nut 14 is movably connected to one end of the metal conductor, the nut 15 is connected to the other end of the metal conductor, and the metal conductors pre-embedded in the upper and lower adjacent vertical stress components are connected together through the nut 15 and the nut 14. During production, the nut 15 is welded at the end of the fourth metal conductor 12, the bottom surface of the threaded sleeve 14 is provided with a through hole slightly larger than the outer diameter of the third metal conductor 11, the end of the third metal conductor 11 passes through the threaded sleeve 14, and the threaded sleeve 14 is movably sleeved on the periphery of the third metal conductor 11. When connection is required, the threaded sleeve 14 is moved to the end of the third metal conductor 11 and connected to the nut 15 at the end of the earth four metal conductor.
On the basis of the above scheme, in another improved scheme, the outer wall of the screw cap 15 is provided with external threads, and the inner wall of the screw sleeve 14 is provided with internal threads. Thus, the screw sleeve 14 is screwed on the outer wall of the screw cap 15 at a construction site to realize the connection between the two metal conductors.
Referring to fig. 6, in another modified version based on the above version, a metal sheet 16 is fixed to the end of the metal conductor connected to the nut 15, the metal sheet 16 is arranged perpendicular to the metal conductor, and the diameter of the metal sheet 16 is between the diameter of the metal conductor and the inner diameter of the screw sleeve 14. Since the screw sleeve 14 can be movably sleeved on the periphery of the metal conductor, in order to prevent the screw sleeve 14 from being separated from the end of the metal conductor, a metal sheet 16 is arranged at the end of the metal conductor, and when the screw sleeve 14 is connected with the nut, the screw sleeve 14 is moved to the tail end position of the metal conductor and is clamped by the metal sheet 16. The metal sheet 16 is designed in the form of a circular disk, and the ends of the metal conductors can be welded to the metal sheet 16. When the third metal conductor 11 and the fourth metal conductor 12 are connected, the nut 15 and the threaded sleeve 14 are screwed together to complete the connection of the two. The construction is simple and convenient, the installation is convenient, and the stress is reliable.
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 decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A lightning protection down lead structure of an assembly type building is applied to the assembly type building with at least two layers; the lightning arrester is characterized by comprising a plurality of metal conductors, lightning receptors and a grounding device, wherein the metal conductors are embedded in a vertical stress component, the top ends and the bottom ends of the metal conductors are respectively exposed out of the top end surface and the bottom end side surface of the vertical stress component, the two metal conductors embedded in the vertical stress component which are adjacent up and down are connected together, the metal conductor embedded in the vertical stress component at the topmost end is connected with the lightning receptors, the metal conductor embedded in the vertical stress component at the bottommost end is connected with the grounding device, a groove is reserved in the bottom end side surface of the vertical stress component, and the bottom ends of the metal conductors are exposed out of the groove.
2. The lightning protection downlead structure of the prefabricated building according to claim 1, wherein the metal conductors embedded in the vertical stress members adjacent to each other are fixedly connected together by welding.
3. The lightning protection downlead structure of the prefabricated building according to claim 1, wherein the metal conductors embedded in the vertical stress members adjacent to each other are fixedly connected together through a connecting member.
4. The lightning protection downlead structure of the fabricated building according to claim 2 or 3, wherein a longitudinal bar is embedded in the vertical stressed member, the metal conductor is embedded in concrete on the periphery of the longitudinal bar, and the length of the metal conductor extending out of the top end surface of the vertical stressed member is smaller than the length of the longitudinal bar extending out of the top end surface of the vertical stressed member.
5. The lightning protection downlead structure of the fabricated building according to claim 3, wherein the connecting member comprises a nut and a barrel, the barrel is movably connected to one end of the metal conductor, the nut is connected to the other end of the metal conductor, and the metal conductors embedded in the vertical stress members which are adjacent up and down are connected together through the nut and the barrel.
6. The lightning protection down conductor structure of an assembly type structure according to claim 5, wherein the outer wall of the screw cap is provided with external threads, and the inner wall of the screw sleeve is provided with internal threads.
7. The lightning protection down conductor structure of prefabricated building according to claim 6, wherein a metal sheet is fixed to an end of the metal conductor connected to the nut, the metal sheet is disposed perpendicular to the metal conductor, and a diameter of the metal sheet is between a diameter of the metal conductor and an inner diameter of the screw sleeve.
8. The lightning protection downlead structure of an assembly type structure according to claim 7, wherein a plurality of vertical ribs are embedded in the vertical force-bearing member, the top ends of the vertical ribs extend out of the top end of the vertical force-bearing member, and a plurality of grouting sleeves are embedded in the bottom end of the vertical force-bearing member; when the vertical stress components adjacent to each other are connected, the top ends of the longitudinal ribs of the vertical stress components below extend into the grouting sleeves of the vertical stress components above one another.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022451660.5U CN214590505U (en) | 2020-10-29 | 2020-10-29 | Lightning protection downlead structure of prefabricated building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022451660.5U CN214590505U (en) | 2020-10-29 | 2020-10-29 | Lightning protection downlead structure of prefabricated building |
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| Publication Number | Publication Date |
|---|---|
| CN214590505U true CN214590505U (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022451660.5U Active CN214590505U (en) | 2020-10-29 | 2020-10-29 | Lightning protection downlead structure of prefabricated building |
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|---|---|
| CN (1) | CN214590505U (en) |
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