CN110242050B - Lightning protection grounding construction method for vertical structure of fabricated building - Google Patents
Lightning protection grounding construction method for vertical structure of fabricated building Download PDFInfo
- Publication number
- CN110242050B CN110242050B CN201910521899.4A CN201910521899A CN110242050B CN 110242050 B CN110242050 B CN 110242050B CN 201910521899 A CN201910521899 A CN 201910521899A CN 110242050 B CN110242050 B CN 110242050B
- Authority
- CN
- China
- Prior art keywords
- lightning protection
- alloy sheet
- lightning
- copper
- iron alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010276 construction Methods 0.000 title claims abstract description 21
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 46
- 239000000956 alloy Substances 0.000 claims abstract description 46
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910000640 Fe alloy Inorganic materials 0.000 claims abstract description 44
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 238000013461 design Methods 0.000 claims abstract description 9
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 32
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 23
- 229910052802 copper Inorganic materials 0.000 claims description 23
- 239000010949 copper Substances 0.000 claims description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 13
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 235000000396 iron Nutrition 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 4
- 230000005288 electromagnetic effect Effects 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 230000006698 induction Effects 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 208000025274 Lightning injury Diseases 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4114—Elements with sockets
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/02—Soldered or welded connections
- H01R4/029—Welded connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a lightning protection grounding construction method for a vertical structure of an assembled building, which comprises the steps of arranging a lightning protection external device outside the building and arranging a lightning protection internal device inside the building; the lightning protection internal device is connected with the down lead, and the lightning protection steel bars of the assembly type structure are rearranged through a deepened design; the diagonal lightning protection steel bars of the upper column are connected to the lightning protection copper-iron alloy sheet of the column base and are connected to the outside through the lightning protection copper-iron alloy sheet; the upper and lower columns and the floor are hoisted to finish connection through sleeve grouting. According to the invention, through a deepened design, the diagonal lightning protection steel bars of the column are connected into the lightning protection alloy sheet of the column base and then are connected to the outside through the lightning protection alloy sheet, the alloy sheet is reserved and led out on the beam surface rib welding of the floor, and the alloy sheet reserved on the beam surface of the floor is connected with the alloy sheet of the vertical component, so that the vertical structure and the lightning protection system of the beam surface of the floor are communicated into a whole, the electromagnetic effect and the lightning current can be reduced, the lightning current is prevented from counterstriking electrical equipment, the fire is prevented from being caused, and the invention has wide popularization and application prospects.
Description
Technical Field
The invention relates to the technical field of building construction engineering, in particular to a lightning protection grounding construction method for a vertical structure of an assembly type building.
Background
When lightning occurs, direct lightning strikes are common, and inductive lightning also includes various types, such as electromagnetic inductive lightning and electrostatic inductive lightning. Therefore, the lightning grounding technology can be simply divided into direct lightning protection and induction lightning protection.
The direct-strike-preventing lightning is mainly provided with three forms of lightning strips, lightning rods and lightning nets, the lightning strips, the lightning rods and the lightning nets are arranged on the roof of the building engineering, and a grounding resistance device is arranged at a part which is easy to be struck by lightning and is connected with a down conductor. The connection of all the protruding metal, lightning strips, lightning rods, lightning nets and the like on the roof must ensure the stability. The metal roofing can play the effect that the ware was connect to the sudden strain of a muscle, and the foundation reinforcement in the construction of building project can be regarded earthing device as the downlead, so can effectively improve the economic nature that lightning grounding technique used.
The induction thunder prevention needs to perform grounding treatment on cables entering and exiting from a relevant position of a user, and mainly aims at a metal sheath of the cable. For the relevant equipment and framework inside the house, the metal parts and the metal sheath of the cable need to be connected with the lightning protection electric induction grounding device.
In the cast-in-place house engineering, lightning protection is realized by welding the connection of reinforcing steel bars from bottom to top in the reinforcing steel bars of the vertical structure to form a lightning protection system network from top to bottom, and the lightning protection system is continuous. The lightning protection reinforcing steel bars at the opposite corners of the columns are double insurance, and at least two lightning protection system nets are arranged from top to bottom.
The prefabricated concrete structure house is constructed on site by a series of structural components such as prefabricated concrete structures, steel structures and the like, and the prefabricated concrete structure house is generally produced in batches of house elements in a production line from the level of the construction mode, such as columns, floors, stairs, balconies and the like, transported to the site for assembly after the production is finished, and constructed for a house project in the assembly mode.
In the house fabricated engineering, the connection of the vertical structure (for example, a column) is completed through the sleeve and the grouting material, so that the steel bars of the vertical structure are disconnected and discontinuous, and how to establish the lightning protection system network of the fabricated building under the condition needs to realize the connection of the cast-in-place concrete and the fabricated vertical member to complete the steel bars, thereby meeting the requirement of lightning protection effect, and becoming the problem to be solved urgently.
Disclosure of Invention
Based on the defects of the prior art, the technical problem to be solved by the invention is to provide the lightning protection grounding construction method for the vertical structure of the fabricated building, and the loss is reduced to the greatest extent by formulating corresponding protection measures.
In order to solve the technical problem, the invention provides a lightning protection grounding construction method for a vertical structure of an assembly type building, which comprises the following steps:
(1) arranging a lightning protection external device outside a building and arranging a lightning protection internal device inside the building;
(2) the lightning protection external device is provided with a lightning arrester, a down lead and a grounding device;
(3) the lightning protection internal device is connected with the down lead, and the lightning protection steel bars of the assembly type structure are rearranged through a deepened design;
(4) the diagonal lightning protection steel bars of the upper column are connected to the lightning protection copper-iron alloy sheet of the column base and are connected to the outside through the lightning protection copper-iron alloy sheet;
(5) the alloy sheet is welded on the floor beam surface rib and is led out in a reserved mode, the alloy sheet is connected with the internal leading-out reinforcing steel bar of the column and is connected with the parallel beam surface main rib of the floor in an evenly sticking and pressing mode, and the alloy sheet reserved on the floor beam surface is connected with the lightning protection copper-iron alloy sheet of the upper column;
(6) hoisting the upper and lower columns and the floor through sleeve grouting to complete connection;
(7) the copper-iron alloy sheets of the upper and lower columns are fixed by bolts or locking codes to complete the communication of the lightning protection reinforcing steel bars of the upper and lower columns;
(8) after the copper-iron alloy sheets of the upper and lower columns are fixed by bolts or snap locks, the exposed devices are protected and marked by a protection box.
Further, the lightning receptor in the step (2) is divided into three forms of a lightning strip, a lightning rod and a lightning net, and the lightning receptor is placed on the upper part of a building to capture lightning and play a lightning triggering effect;
the downlead is connected with the lightning arrester, and the other end of the downlead is connected with the grounding device and used for leading the intercepted lightning current into the grounding device.
Optionally, the deepening design in the step (3) includes:
according to the layout of the reinforcing steel bars designed according to the deepening of the original civil engineering drawing, the reinforcing steel bars originally used for lightning protection connection are adjusted, the reinforcing steel bars at opposite corners are selected as the lightning protection reinforcing steel bars, the reinforcing steel bars are connected through round iron or reinforcing steel bars with the diameter not less than 12mm, and the connecting ports capable of being connected outwards are led out through alloy sheets and serve as connecting nodes for leading down and uniformly attaching to floors.
Optionally, the lightning protection copper-iron alloy sheet in the step (4) is a right-angle alloy sheet, and the height from the ground is 30 cm; the right-angled material of one surface of the lightning protection copper-iron alloy sheet is cast by iron, and the right-angled material of the other surface of the lightning protection copper-iron alloy sheet is cast by copper;
the iron surface of the lightning protection copper-iron alloy sheet is attached to the column base and is recessed into the column concrete by 20mm, the height of the lightning protection copper-iron alloy sheet is 30cm, the width of the lightning protection copper-iron alloy sheet is 20cm, and the thickness of the lightning protection copper-iron alloy sheet is 1 cm; the height of the copper surface is 30cm, the width is 6-8cm, the thickness is 1cm, 2-4 bolt holes are reserved in the copper surface, and the copper surface is connected with alloy sheets led out of the lower column and the floor beam surface through bolts or locking codes.
Further, the alloy sheet in the step (5) is a lightning protection copper-iron alloy sheet, the alloy sheet welded on the floor beam surface is cast by iron, the length is unlimited, the width is 6-8cm, the thickness is 1cm, the led-out part is cast by copper, the length is 30cm, the width is 6-8cm, the thickness is 1cm, and 2-4 bolt holes are reserved in the copper surface;
when the lightning protection copper-iron alloy sheet is connected with the upper column, the led-out copper surface alloy sheet is bent to be connected with the lightning protection copper-iron alloy sheet of the upper column, and the reserved bolt holes are connected through bolts or locking codes.
Further, the grouting of the sleeve in the step (6) to complete the connection comprises:
the two areas of the vertical column and the transverse beam plate are prefabricated in a factory respectively and are connected through sleeve grouting;
sleeving one end of the sleeve on the steel bar, and performing mechanical connection construction by using threads, wherein the steel bar at the other end is connected in a grouting manner;
by adopting the hollow sleeve mode, the reinforcing steel bar enters the sleeve from the openings at the two ends, and micro-expansion grouting material is adopted for filling between the reinforcing steel bar and the sleeve.
Optionally, the height of the protection box in the step (8) is 30cm, the width is 20cm, the thickness is 6-8cm, and the material is plastic, stainless steel or copper.
Therefore, the lightning protection grounding construction method for the vertical structure of the prefabricated building changes the traditional welding process, the lightning protection position is exposed, and the protection box is used for marking and protecting, so that firstly, the lightning protection position is used for warning, an office rental unit pays attention to the lightning protection position, the key protector for secondary decoration is used, secondly, the lightning protection position is convenient to overhaul, one more earth pole check point is added, and thirdly, the grounding point of a machine room electric well is convenient to access (one of means for processing induction lightning protection).
In addition, the invention connects the diagonal lightning protection steel bar of the column to the lightning protection alloy sheet of the column base through the deepening design, and then connects the diagonal lightning protection steel bar of the column base to the outside through the lightning protection alloy sheet, and the lightning protection alloy sheet is reserved and led out on the beam surface steel bar of the floor, the alloy sheet is not only connected with the lead-in steel bar of the column, but also is uniformly attached and pressed with the main steel bar of the parallel beam surface of the floor, after the surface layer concrete is poured and the prefabricated vertical component is hoisted, the alloy sheet reserved on the beam surface of the floor is connected with the alloy sheet of the vertical component, so that the vertical structure and the lightning protection system of the beam surface of the floor are communicated into a whole. The invention can reduce electromagnetic effect and lightning current, avoid lightning stroke damage caused by contact voltage and step voltage, avoid lightning current from striking electrical equipment, avoid electrical equipment from being burnt out, avoid fire disaster, and have wide popularization and application prospect.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following detailed description is given in conjunction with the preferred embodiments, together with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
FIG. 1 is a flow chart of the lightning grounding construction method of the vertical structure of the prefabricated building of the present invention;
FIG. 2 is a schematic structural view of the lightning protection copper-iron alloy sheet of the present invention with the diagonal lightning protection reinforcing bars of the upper column connected to the column base;
FIG. 3 is a schematic structural view of a lightning protection copper-iron alloy sheet of the upper column of the present invention;
FIG. 4 is a schematic structural view of a lightning protection copper-iron alloy sheet of the lower column and floor beam of the present invention;
FIG. 5 is a view of the sleeve grouting position of the upper column member of the present invention;
FIG. 6 is an upper column elevational view of the present invention;
FIG. 7 is a schematic structural view of an alloy sheet drawn from the floor beam surface of the present invention;
Detailed Description
Other aspects, features and advantages of the present invention will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, which form a part of this specification, and which illustrate, by way of example, the principles of the invention. In the referenced drawings, the same or similar components in different drawings are denoted by the same reference numerals.
Examples
The embodiment of the invention is a Hengsheng mansion office building project, which is positioned in a No. 1633 civil camp scientific and technological park in the white cloud region of Guangzhou city, the building height is 78.8m, the land area is 7586.6 square meters, the total building area is 44035.8 square meters, and the projects are 19 layers above the ground and 3 layers below the ground. The project is awarded to a fabricated building demonstration project of Guangdong province in 2019 by a housing of the Guangdong province and a city and county construction hall.
Specifically, as shown in fig. 1 to 7, the lightning protection grounding construction method for the vertical structure of the prefabricated building of the present invention includes the following steps:
firstly, arranging a lightning protection external device outside a building and arranging a lightning protection internal device inside the building;
the lightning protection external device is provided with a lightning arrester, a down lead and a grounding device;
(1) according to lightning protection demand and building actual conditions, the arrester has three kinds of different forms, namely lightning strip, lightning rod and lightning net, these are placed on building upper portion, catch the lightning, also can play the effect of lightning triggering simultaneously, and the downlead links to each other with the arrester, and earthing device is then connected to one end in addition, makes the lightning current who has intercepted be introduced in earthing device.
(2) The grounding device is installed at a deep underground position and can radiate received lightning current to the ground.
Thirdly, the lightning protection internal device is connected with the down lead, and the lightning protection steel bars of the assembled structure are rearranged through a deepened design;
the layout of reinforcing steel bars is designed according to the deepening of an original civil engineering drawing, the reinforcing steel bars originally used for lightning protection connection are adjusted, the reinforcing steel bars 10 at opposite corners are selected as lightning protection reinforcing steel bars and are connected by round iron or reinforcing steel bars 20 with the diameter of not less than 12mm, an alloy sheet 30 is led out to a connector which can be connected outwards and is used as a connection node for leading down and uniformly adhering and pressing floors, and the drawing is shown in figure 2.
Fourthly, the diagonal lightning protection steel bars of the upper column (vertical component) are connected to the lightning protection copper-iron alloy sheet of the column base and are connected to the outside through the lightning protection copper-iron alloy sheet;
(1) the lightning protection copper iron alloy sheet of the column foot is 30cm away from the ground because of the consideration of the pavement finish coat of the floor.
(2) The lightning protection copper-iron alloy sheet is a right-angle alloy sheet, one right-angle material of one surface is cast by iron, the other right-angle material of the other surface is cast by copper, and the copper-iron joint is subjected to technical treatment on the premise of not generating electrolytic corrosion, which is shown in figure 3.
(3) The iron surface 31 of the right-angle alloy sheet is attached to the column base and is recessed into the concrete of the column by 20mm, as shown in figure 2, the size is 30cm in height, 20cm in width and 1cm in thickness; size of copper face 32: the height is 30cm, the width is 6-8cm, the thickness is 1cm, 2-4 bolt holes are reserved in the copper surface, and the copper surface is connected with the lightning protection copper-iron alloy plate led out from the lower column and the floor beam surface through bolts or snap locks, as shown in figure 3.
Fifthly, reserving and leading out alloy sheets for welding the floor beam surface ribs, wherein the alloy sheets are connected with the internal leading-out reinforcing steel bars of the columns and are uniformly attached and pressed with the main reinforcing steel bars of the parallel beam surfaces of the floors, and after surface layer concrete is poured and the prefabricated vertical members are hoisted, the reserved alloy sheets 40 of the floor beam surfaces are connected with the alloy sheets 30 of the vertical members, so that the vertical structure and the lightning protection system of the floor beam surfaces are communicated into a whole;
(1) the lightning protection copper-iron alloy sheet welded on the floor beam surface ribs is characterized in that an alloy sheet 41 welded on the floor beam surface is cast by iron, the length is unlimited, the width is 6-8cm, the thickness is 1cm, the led-out part is cast by copper, the length is 30cm, the width is 6-8cm, the thickness is 1cm, 2-4 bolt holes are reserved in a copper surface 42, technical treatment is carried out on the copper-iron junction, electrolytic corrosion is not generated, and the lightning protection copper-iron alloy sheet is shown in figures 4 and 7.
(2) When the copper alloy sheet is connected with the vertical structure, the led-out copper alloy sheet is bent to be connected with the alloy sheet of the vertical structure, and the reserved bolt holes are connected through bolts or snap locks, as shown in figure 6.
Sixthly, hoisting the upper and lower columns and the floor through sleeve grouting to complete connection;
(1) the vertical column and the transverse beam slab are prefabricated in a factory respectively, and are connected through sleeve grouting, and the structure is shown in figure 5.
(2) One end of the sleeve is sleeved on the steel bar, mechanical connection construction is carried out by utilizing threads, and the steel bar at the other end is connected in a grouting mode.
(3) By adopting the hollow sleeve mode, the reinforcing steel bar enters the sleeve from the openings at the two ends, and micro-expansion grouting material is adopted for filling between the reinforcing steel bar and the sleeve.
(4) Because the high-strength grouting characteristic of the micro-expansion grouting material, after the sleeve exerts the constraint force, the surface of the steel bar and the middle part of the sleeve can form a forward acting force, the steel bar provides an auxiliary effect for the forward acting force, so that the surface of the steel bar forms friction force, the transmission of the stress of the steel is completed, and the lightning protection effect is achieved.
And seventhly, fixing the upper and lower column copper-iron alloy sheets by using bolts or locking codes to complete the communication of the upper and lower column lightning protection reinforcing steel bars.
Eighthly, after the upper and lower columns of copper-iron alloy sheets are fixed by bolts or snap locks, the exposed device is protected and marked by a protection box, so that the maintenance is convenient.
Size of the protective case: the height is 30cm, the width is 20cm, the thickness is 6-8cm, and the material can be plastic, stainless steel, copper, etc.
The protection box is arranged according to the requirements of engineering, if the protection box is not exposed as required by a construction unit, the protection box can not be arranged, and the alloy sheets are all hidden in a concrete structure.
The lightning protection grounding construction method of the vertical structure of the fabricated building, disclosed by the invention, has the advantages that through a deepening design, the diagonal lightning protection reinforcing steel bars of the column are connected into the lightning protection alloy sheet of the column base, and then the diagonal lightning protection reinforcing steel bars of the column base are connected to the outside through the lightning protection alloy sheet, the alloy sheet is reserved and led out on the beam surface reinforcing steel bars of the floor, the alloy sheet is not only connected with the lead-in reinforcing steel bars of the column, but also uniformly attached and pressed with the main reinforcing steel bars of the parallel beam surface of the floor, after the surface layer concrete is poured and the prefabricated vertical component is hoisted, the alloy sheet reserved on the beam surface of the floor is connected with the alloy sheet of the vertical component, so that the vertical structure and the lightning protection system of the beam surface of the floor are communicated into a whole. The invention can reduce electromagnetic effect and lightning current, avoid lightning stroke damage caused by contact voltage and step voltage, avoid lightning current from striking electrical equipment, avoid electrical equipment from being burnt out, avoid fire disaster, and have wide popularization and application prospect.
While the foregoing is directed to the preferred embodiment of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (3)
1. The lightning protection grounding construction method for the vertical structure of the fabricated building is characterized by comprising the following steps of:
(1) arranging a lightning protection external device outside a building and arranging a lightning protection internal device inside the building;
(2) the lightning protection external device is provided with a lightning arrester, a down lead and a grounding device;
(3) the lightning protection internal device is connected with the down lead, and the lightning protection steel bars of the assembly type structure are rearranged through a deepened design; the deepened design comprises the following steps:
according to the method, the layout of steel bars is deeply designed according to an original civil construction drawing, the steel bars originally used for lightning protection connection are adjusted, diagonal steel bars are selected as lightning protection steel bars, are connected by round irons or steel bars with the diameter of not less than 12mm, and are led out to a connector which can be connected outwards by alloy sheets to serve as connecting nodes for leading down and uniformly attaching floors;
(4) the diagonal lightning protection steel bars of the upper column are connected to the lightning protection copper-iron alloy sheet of the column base and are connected to the outside through the lightning protection copper-iron alloy sheet; the lightning protection copper-iron alloy sheet is a right-angle alloy sheet, and the height from the ground is 30 cm; the right-angled material of one surface of the lightning protection copper-iron alloy sheet is cast by iron, and the right-angled material of the other surface of the lightning protection copper-iron alloy sheet is cast by copper;
the iron surface of the lightning protection copper-iron alloy sheet is attached to the column base and is recessed into the column concrete by 20mm, the height of the lightning protection copper-iron alloy sheet is 30cm, the width of the lightning protection copper-iron alloy sheet is 20cm, and the thickness of the lightning protection copper-iron alloy sheet is 1 cm; the height of the copper surface is 30cm, the width is 6-8cm, the thickness is 1cm, 2-4 bolt holes are reserved in the copper surface, and the copper surface is connected with the lower column and the alloy sheet led out from the floor beam surface through bolts or locking codes;
(5) the alloy sheet is welded on the floor beam surface rib and is led out in a reserved mode, the alloy sheet is connected with the internal leading-out reinforcing steel bar of the column and is connected with the parallel beam surface main rib of the floor in an evenly sticking and pressing mode, and the alloy sheet reserved on the floor beam surface is connected with the lightning protection copper-iron alloy sheet of the upper column; the alloy sheet is a lightning protection copper-iron alloy sheet, the alloy sheet welded on the floor beam surface is cast by iron, the length is unlimited, the width is 6-8cm, the thickness is 1cm, the led-out part is cast by copper, the length is 30cm, the width is 6-8cm, the thickness is 1cm, and 2-4 bolt holes are reserved in the copper surface;
when the lightning protection copper-iron alloy sheet is connected with the upper column, the led copper surface alloy sheet is bent to be connected with the lightning protection copper-iron alloy sheet of the upper column, and the reserved bolt holes are connected through bolts or locking codes;
(6) hoisting the upper and lower columns and the floor through sleeve grouting to complete connection;
(7) the copper-iron alloy sheets of the upper and lower columns are fixed by bolts or locking codes to complete the communication of the lightning protection reinforcing steel bars of the upper and lower columns;
(8) after the upper and lower columns of copper-iron alloy sheets are fixed by bolts or snap locks, the exposed device is protected and marked by a protection box, the height of the protection box is 30cm, the width of the protection box is 20cm, the thickness of the protection box is 6-8cm, and the protection box is made of plastic, stainless steel or copper.
2. The lightning protection grounding construction method for the vertical structure of the fabricated building according to claim 1, wherein: the lightning receptor in the step (2) is divided into three forms of a lightning strip, a lightning rod and a lightning net, and the lightning receptor is placed on the upper part of a building to capture lightning and play a lightning triggering effect;
the downlead is connected with the lightning arrester, and the other end of the downlead is connected with the grounding device and used for leading the intercepted lightning current into the grounding device.
3. The lightning protection grounding construction method for the vertical structure of the fabricated building according to claim 1, wherein: the sleeve grouting in the step (6) to complete connection comprises the following steps:
the two areas of the vertical column and the transverse beam plate are prefabricated in a factory respectively and are connected through sleeve grouting;
sleeving one end of the sleeve on the steel bar, and performing mechanical connection construction by using threads, wherein the steel bar at the other end is connected in a grouting manner;
by adopting the hollow sleeve mode, the reinforcing steel bar enters the sleeve from the openings at the two ends, and micro-expansion grouting material is adopted for filling between the reinforcing steel bar and the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910521899.4A CN110242050B (en) | 2019-06-17 | 2019-06-17 | Lightning protection grounding construction method for vertical structure of fabricated building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910521899.4A CN110242050B (en) | 2019-06-17 | 2019-06-17 | Lightning protection grounding construction method for vertical structure of fabricated building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110242050A CN110242050A (en) | 2019-09-17 |
| CN110242050B true CN110242050B (en) | 2021-11-23 |
Family
ID=67887684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910521899.4A Active CN110242050B (en) | 2019-06-17 | 2019-06-17 | Lightning protection grounding construction method for vertical structure of fabricated building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110242050B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001200657A (en) * | 2000-01-18 | 2001-07-27 | Ohbayashi Corp | Lightning conductor grounding structure of structure |
| CN103531060A (en) * | 2013-10-14 | 2014-01-22 | 浙江建设职业技术学院 | Intelligent building comprehensive anti-thunder technical practical training device |
| CN104882686A (en) * | 2015-05-27 | 2015-09-02 | 南京长江都市建筑设计股份有限公司 | Lightning protection downlead and construction method thereof |
| CN104993440A (en) * | 2015-07-14 | 2015-10-21 | 北京万兴建筑集团有限公司 | Lightning-protection manual grounding system and construction method by utilizing structure steel bar externally-connected downlead wire |
| CN205617591U (en) * | 2016-05-18 | 2016-10-05 | 香港华艺设计顾问(深圳)有限公司 | Lightning protection downlead structure among assembly type structure |
| CN207959719U (en) * | 2018-03-05 | 2018-10-12 | 三能集成房屋股份有限公司 | A kind of prefabricated post and its lightning protection downlead connection structure |
| CN208844599U (en) * | 2018-09-03 | 2019-05-10 | 广东宏业建设工程有限公司 | A kind of bottom prefabricated post downlead node structure for assembled architecture lightning protection |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109629673A (en) * | 2018-12-18 | 2019-04-16 | 广州机施建设集团有限公司 | A kind of prefabricated frame trestle lightning protection downlead attachment device and its installation method |
-
2019
- 2019-06-17 CN CN201910521899.4A patent/CN110242050B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001200657A (en) * | 2000-01-18 | 2001-07-27 | Ohbayashi Corp | Lightning conductor grounding structure of structure |
| CN103531060A (en) * | 2013-10-14 | 2014-01-22 | 浙江建设职业技术学院 | Intelligent building comprehensive anti-thunder technical practical training device |
| CN104882686A (en) * | 2015-05-27 | 2015-09-02 | 南京长江都市建筑设计股份有限公司 | Lightning protection downlead and construction method thereof |
| CN104993440A (en) * | 2015-07-14 | 2015-10-21 | 北京万兴建筑集团有限公司 | Lightning-protection manual grounding system and construction method by utilizing structure steel bar externally-connected downlead wire |
| CN205617591U (en) * | 2016-05-18 | 2016-10-05 | 香港华艺设计顾问(深圳)有限公司 | Lightning protection downlead structure among assembly type structure |
| CN207959719U (en) * | 2018-03-05 | 2018-10-12 | 三能集成房屋股份有限公司 | A kind of prefabricated post and its lightning protection downlead connection structure |
| CN208844599U (en) * | 2018-09-03 | 2019-05-10 | 广东宏业建设工程有限公司 | A kind of bottom prefabricated post downlead node structure for assembled architecture lightning protection |
Non-Patent Citations (2)
| Title |
|---|
| 装配式混凝土结构建筑雷电防护装置设计;李慧等;《建筑电气》;20170630;第36卷(第6期);第7-12页 * |
| 郭向阳.装配式建筑机电深化设计.《广东土木与建筑》.2019,第26卷(第5期),第27-29页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110242050A (en) | 2019-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2471153A2 (en) | Lightning protection system | |
| CN104993440B (en) | Utilize the lightning protection artificial earthing system and construction method of the external downlead of structure reinforcing bars | |
| CN110242050B (en) | Lightning protection grounding construction method for vertical structure of fabricated building | |
| CN114182880A (en) | Lightning protection bridging construction method for prefabricated column | |
| CN111236603B (en) | Comprehensive construction method for steel plate mesh overhanging scaffold | |
| CN103779824A (en) | Photovoltaic solar building lightning protection facility construction method | |
| CN215443391U (en) | Transmission line and 5G communication sharing steel pipe pole | |
| KR100658213B1 (en) | Ground connection apparatus of electric institution using houses | |
| CN105909006B (en) | A kind of precast assembly prefabricated substation | |
| CN104882686A (en) | Lightning protection downlead and construction method thereof | |
| CN109826314B (en) | Installation method of fabricated building | |
| CN208534392U (en) | A kind of basic safety climbing ladder of appearing for electric power pylon height | |
| CN207812682U (en) | A kind of constructing structure of ground connection pre-embedded steel slab | |
| CN105089024A (en) | Underground powerhouse wire outgoing arrangement mode and structure | |
| CN206090603U (en) | Transmission line foundation bank protection | |
| CN217789276U (en) | Building grounding system | |
| CN209184208U (en) | A kind of buried cable laying section button protection pipe | |
| CN220754317U (en) | Industrial factory building concrete foundation ground lightning protection electric shock structure | |
| JP2007006583A (en) | Equipotential bonding construction method | |
| CN213038652U (en) | Glass curtain wall with lightning protection system | |
| CN219671414U (en) | High pole lamp foundation | |
| CN213418688U (en) | Edge surrounding rod device for building construction plug-in type | |
| CN218386730U (en) | Curtain wall lightning protection device | |
| CN213572939U (en) | Climbing frame with stairs | |
| CN217427628U (en) | Buried ground cable protective groove |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |