CN112411794A - Mounting plate device for improving anti-seismic performance of wall bushing - Google Patents
Mounting plate device for improving anti-seismic performance of wall bushing Download PDFInfo
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- CN112411794A CN112411794A CN202011205519.5A CN202011205519A CN112411794A CN 112411794 A CN112411794 A CN 112411794A CN 202011205519 A CN202011205519 A CN 202011205519A CN 112411794 A CN112411794 A CN 112411794A
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 168
- 239000010959 steel Substances 0.000 claims abstract description 168
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 25
- 230000009471 action Effects 0.000 claims abstract description 9
- 230000002411 adverse Effects 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 24
- 238000009434 installation Methods 0.000 claims description 22
- 238000003466 welding Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 description 5
- 238000013016 damping Methods 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 5
- 229910052573 porcelain Inorganic materials 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 241001312219 Amorphophallus konjac Species 0.000 description 1
- 235000001206 Amorphophallus rivieri Nutrition 0.000 description 1
- 229920002752 Konjac Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 235000010485 konjac Nutrition 0.000 description 1
- 239000000252 konjac Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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- 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
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- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/22—Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a mounting plate device for improving the seismic performance of a wall bushing, which can effectively inhibit the adverse effect of amplifying the seismic response of the wall bushing caused by vibration deformation outside the plane of the wall bushing under the action of an earthquake. The mounting plate device comprises a channel steel part, a Z-shaped mounting steel plate, an aluminum alloy flange and a wall bushing, wherein the channel steel part is embedded in the gable wall of the valve hall; the gable wall of the valve hall is provided with a reserved hole for the wall bushing to pass through, and the specification of the reserved hole is matched with the size of the Z-shaped mounting steel plate of the wall bushing; the inclination angle of the Z-shaped mounting steel plate can be determined according to the inclination angle required by the wall bushing to be mounted, and a plurality of stiffening rib steel plates are arranged on the Z-shaped mounting steel plate, so that the out-of-plane rigidity of the mounting steel plate can be improved, and the out-of-plane deformation of the mounting steel plate under the action of an earthquake can be inhibited to avoid adverse effects on the wall bushing; the mounting steel plate is welded and fixed with a channel steel embedded part on a gable wall of the valve hall and is fixedly connected with an aluminum alloy flange on the wall bushing through a bolt.
Description
Technical Field
The invention relates to the technical field of seismic reinforcement of power transformation equipment.
Background
With the development of high-voltage direct-current transmission technology, direct-current transmission plays a great role in the composition of a Chinese power grid, particularly 'West electric and east electric transmission'. The southwest area as a power source is in an earthquake-prone area, and the safety of related power equipment under the action of an earthquake needs to be concerned. The electric power system shows extremely high vulnerability in the earthquake all the time, the earthquake damage of the electric power system caused by Northr idge in 1994 is mainly concentrated on 230kV and 550kV transformer substations, and the earthquake also causes the interruption of electricity utilization of 110 ten thousand people in North America; in the earthquake of Japan Konjac in 1995, the damage of the porcelain bushing of the transformer causes about 100 power failures of one household. In the Wenchuan earth earthquake which occurs in China in 2008, the high-voltage electrical equipment of the transformer substation is mainly damaged by the porcelain bushing or the part connected with the porcelain bushing, such as the flange and the like. Earthquake disasters have become an important factor threatening the safe operation of power systems.
The wall bushing is one of main power equipment in a direct current transmission converter station, is generally installed on a gable wall of a valve hall and plays a role in connecting the power equipment inside and outside the valve hall. The seismic performance of the wall bushing under the action of an earthquake is the key to ensure the safe and reliable operation of a power transmission system, and due to the high cost, if the wall bushing is damaged in the earthquake, the economic and important loss can be caused.
The wall bushing is connected with the mounting plate welded on the valve hall in an anchoring mode through the flange, the mounting plate is thin, the wall bushing is prone to generating external vibration and deformation under the action of an earthquake, the wall bushing anchored on the wall bushing is driven to swing together, and earthquake responses such as top displacement, acceleration, root stress and the like of the wall bushing are amplified. The dead weight of the wall bushing can reach 10t, and the typical long cantilever structure is very unfavorable for earthquake resistance. The wire outlet end at the top of the wall bushing is generally connected with other equipment by using a bus, and if the top of the wall bushing is displaced greatly in an earthquake, the bus is possibly tensioned to cause equipment damage; the inner sleeve and the outer sleeve are made of composite materials, and the inner sleeve and the outer sleeve are easy to crack due to overlarge stress at the position of a root flange; at present, no reliable technology is available for enabling the extra-high voltage converter station to accurately and timely cut off a power supply before earthquake waves arrive, the acceleration inside the wall bushing is too large, the electrical insulation problem is easily caused, and the safe operation of the whole converter station is endangered. Therefore, it is of great significance to suppress out-of-plane vibration deformation of the mounting plate itself to mitigate adverse effects on the through-wall bushing under seismic action.
In order to improve the shock resistance of the electrical equipment, it is a common choice to add damping facilities. However, the following problems exist with this type of metal friction damping device: firstly, considering that the parameters of the damping device are selected according to the dynamic characteristics of the wall bushing and the valve hall structure, finite element simulation or test measurement needs to be carried out in advance, and the workload is large; secondly, corresponding damping parameters need to be designed according to requirements aiming at each valve hall and each wall bushing, and the universality is poor; thirdly, the price and the cost of the damper are high; fourthly, the installation requirement precision of the damping device is high, and the construction difficulty is high; fifth, the particular metallic material of the damper may affect the proper electrical function of the device.
Through retrieval, in the prior art, the invention with application number 201910859694.7 provides an extra-high voltage wall bushing for improving earthquake resistance, which comprises a channel steel embedded part, two mounting steel plates, a wall bushing and an aluminum alloy flange, wherein a valve hall gable is provided with a preformed hole, and the specification of the preformed hole is matched with that of the mounting steel plates; the mounting steel plates are parallelly provided with two mounting steel plates which are positioned in the reserved holes, and two ends of each mounting steel plate are respectively fixed on the mountain wall of the valve hall through the welding of channel steel embedded parts; a first central hole is formed in the center of the mounting steel plate, a second central hole is formed in the center of the aluminum alloy flange, the aluminum alloy flange is fixed on the mounting steel plate through a mounting bolt, and the first central hole is aligned to the second central hole; the wall bushing passes through the second center hole and the first center hole and is sleeved on the two mounting steel plates. The steel groove embedded part is welded on the gable wall and used for fixing the two mounting plates, and the first aluminum alloy flange and the second aluminum alloy flange of the wall-through sleeve are respectively anchored with the two mounting steel plates.
Although the invention has certain capability of improving the anti-seismic performance of the wall bushing, the invention has the following defects: the mode of two mounting plates causes inconvenient operation during actual anchor bolt connection, and increases the mounting difficulty of the wall bushing; compared with a first-product mounting plate, the two-product mounting plate is high in cost, and the distance requirement of the two-product mounting plate enables the two-product mounting plate not to be suitable for valve hall gable walls with the thickness smaller than 400 mm; the mounting mode of two article mounting panels is difficult to be applicable to the installation of the wall bushing that has certain inclination demand.
Disclosure of Invention
In order to solve the existing problems, the invention provides the mounting plate device for improving the seismic resistance of the wall bushing, which has the advantages of simple structure, easiness in manufacturing, convenience in mounting, low cost and strong applicability.
The technical scheme of the invention is as follows:
the thickness range of the valve hall gable is 200 mm-400 mm, the opening direction of the channel steel embedded part is towards the direction of the valve hall gable, the channel steel embedded part is parallel to the plane direction of the wall body and is fixed in a hole above the valve hall gable through welding, and the length of the channel steel embedded part is consistent with the side length of a square hole of the valve hall gable.
The thickness range of the mounting steel plate is 30-50 mm; the mounting steel plate can be made into a Z shape according to an inclination angle required by the wall bushing to be mounted, wherein the length range of an upper horizontal steel plate and a lower horizontal steel plate connected with the embedded channel steel is 100-150 mm; two triangular steel plate reinforcing members are respectively welded at trisection points at the joints of the middle steel plate and the upper and lower steel plates of the Z-shaped mounting steel plate.
The triangular steel plate reinforcing member for reinforcing the joint of the installation steel plates is perpendicular to the outer side direction of the installation steel plates, the thickness range of the triangular steel plate reinforcing member is 15-30 mm, the width of the triangular steel plate reinforcing member is consistent with that of the upper steel plate and the lower steel plate of the Z-shaped installation steel plates, and the length range of the triangular steel plate reinforcing member is 200-300 mm.
The Z-shaped mounting steel plate is welded with four rectangular steel plate reinforcing members from the edge of the central circular hole along two horizontal and vertical orthogonal directions, so that the out-of-plane rigidity of the mounting steel plate can be improved.
Improve the rectangle steel sheet reinforcement of installation steel sheet off-plate rigidity only adds in the one side of no aluminium alloy flange otic placode, perpendicular installation steel sheet outside direction arranges, rectangle steel sheet reinforcement length extends to the installation plate edge from mounting panel center circular hole edge department, and width range is 80 ~ 120mm, and the thickness range is 20 ~ 30 mm.
The channel steel embedded part comprises 2 channel steel connecting pieces which are respectively welded at the upper part and the lower part in the hole above the gable of the valve hall, and the end parts of the upper and the lower steel plates of the Z-shaped mounting steel plate are fixed in the reserved square hole on the gable of the valve hall by welding with the embedded channel steel connecting pieces.
The diameter of the central round hole of the Z-shaped mounting steel plate is slightly larger than the diameter of the wall bushing aluminum alloy flange to be mounted; bolt holes matched with the mounting bolts are formed around the central circular hole of the mounting steel plate; the aluminum alloy flange is provided with an ear plate, the ear plate is provided with a bolt mounting hole, and the specification of the bolt mounting hole is matched with that of the bolt hole; the mounting bolt penetrates through the bolt hole and the bolt mounting hole.
Compared with the prior art, the invention has the advantages that: the device is simple in structure, easy to manufacture, convenient to install, low in cost and high in applicability, can play an effective earthquake protection role on the wall bushing, can be suitable for the wall bushing with the installation inclination angle requirement, and cannot influence the insulating property and the normal electrical function of the wall bushing and nearby electrical equipment in the using process.
Drawings
Fig. 1 is a schematic structural diagram of the whole wall bushing-valve hall according to the embodiment of the invention.
FIG. 2 is a schematic view of a wall bushing mounting plate apparatus according to an embodiment of the present invention.
FIG. 3 is a schematic detail view of an example wall bushing mounting plate apparatus of the present invention.
FIG. 4 is a front view and a perspective view of a Z-shaped mounting plate according to an embodiment of the present invention.
In the figure: 1 is a valve hall; 2 is a gable structure of the valve hall; 3 is a valve hall gable square hole; 4 is a wall bushing; 5 is a Z-shaped mounting steel plate; 6 is an aluminum alloy flange; 7 is an aluminum alloy flange ear plate; 8, an embedded channel steel connecting piece; 9 is a mounting bolt; 10 is a triangular steel plate reinforcing member; 11 is a rectangular steel plate reinforcing member; 12 is a bolt hole; and 13 is a central round hole of the mounting steel plate.
Detailed Description
In order to further illustrate the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings and examples, which are not to be construed as limiting the scope of the present invention.
As shown in fig. 1 to 4, a mounting plate device for improving the seismic performance of a wall bushing comprises a channel steel connecting piece 8, a 'Z' -shaped mounting steel plate 5, an aluminum alloy flange 6 and the wall bushing 4, wherein the channel steel connecting piece 8 is embedded in a gable 2 of a valve hall;
wherein:
a gable structure 2 of the valve hall 1 is provided with a reserved square hole 3 for a wall bushing 4 to pass through, and the specification of the reserved square hole 3 is matched with the size of a Z-shaped mounting steel plate 5;
the inclination angle of the Z-shaped mounting steel plate 5 can be manufactured according to the inclination angle required by the wall bushing 4 to be mounted; a circular hole 13 is formed in the center of the Z-shaped mounting steel plate 5 for the wall bushing 4 to pass through, and the specification of the reserved circular hole 13 is matched with the size of the wall bushing aluminum alloy flange 6; the Z-shaped mounting steel plate 5 is provided with a plurality of stiffening rib steel plates 11, so that the out-of-plane rigidity of the mounting steel plate can be improved, and the out-of-plane deformation of the mounting steel plate under the action of an earthquake can be inhibited to avoid adverse effects on the wall bushing; two ends of a Z-shaped mounting steel plate 5 are respectively fixed in the square holes 3 of the gable of the valve hall through welding with upper and lower channel steel embedded connecting pieces 8 in the square holes;
the aluminum alloy flange 6 and the wall bushing 4 are fixed in a central round hole 13 on the mounting steel plate through a mounting bolt 9.
Implementation details are given further by way of example:
the thickness range of the valve hall gable 2 is 200 mm-400 mm, the opening direction of the channel steel embedded part 8 faces the direction of the valve hall gable, the channel steel embedded part is parallel to the plane direction of the wall body and is fixed in the hole 3 above the valve hall gable through welding, and the length of the channel steel embedded part 8 is consistent with the side length of the square hole 3 of the valve hall gable.
The thickness range of the Z-shaped mounting steel plate 5 is 30-50 mm; the Z-shaped mounting steel plate 5 can be made into a Z shape with different inclination angles according to the inclination angle required by the wall bushing 4 to be mounted, wherein the length range of the upper horizontal steel plate and the lower horizontal steel plate connected with the embedded channel steel 8 is 100-150 mm; two triangular steel plate reinforcing members 10 are respectively welded at trisection points at the joints of the middle steel plate and the upper and lower steel plates of the Z-shaped mounting steel plate 5.
The triangular steel plate reinforcing member 10 at the joint of the reinforcing installation steel plate is arranged perpendicular to the outer side direction of the Z-shaped installation steel plate 5, the thickness range of the triangular steel plate reinforcing member is 15-30 mm, the width of the triangular steel plate reinforcing member is consistent with that of the upper steel plate and the lower steel plate of the Z-shaped installation steel plate 5, and the length range of the triangular steel plate reinforcing member is 200-300 mm.
The Z-shaped mounting steel plate 5 is welded with four rectangular steel plate reinforcing members 11 from the edge of the central round hole 13 along the horizontal and vertical orthogonal directions, so that the out-of-plane rigidity of the mounting steel plate can be improved.
Improve the rectangle steel sheet reinforcement 11 of installation steel sheet off-plate rigidity and only add in the one side of no aluminium alloy flange otic placode 7, arrange perpendicularly 5 outside directions of installation steel sheet, and 11 lengths of rectangle steel sheet reinforcement extend to 5 edges of mounting panel from 13 edges of mounting panel center round hole, and width range is 80 ~ 120mm, and the thickness range is 20 ~ 30 mm.
The channel steel embedded part comprises 2 channel steel connecting pieces 8 which are respectively welded at the upper part and the lower part of the upper hole 3 of the valve hall gable, and the end parts of the upper and the lower steel plates of the Z-shaped mounting steel plate 5 are welded with the embedded channel steel connecting pieces 8 to be firmly fixed in the reserved square holes 3 of the valve hall gable.
The diameter of the central round hole 13 of the Z-shaped mounting steel plate is slightly larger than that of the wall bushing aluminum alloy flange 6 to be mounted; a bolt hole 12 matched with the mounting bolt 9 in size is formed around the central circular hole 13 of the mounting steel plate; the aluminum alloy flange 6 is provided with an ear plate 7, the ear plate 7 of the aluminum alloy flange is provided with a bolt mounting hole, and the specification of the bolt mounting hole is matched with that of the bolt hole 12; the mounting bolts 9 are arranged on the bolt holes 12 and the bolt mounting holes in a penetrating mode, and therefore the wall bushing 4 is fixedly mounted.
In this embodiment, the embedded channel steel connecting piece 8 and the Z-shaped mounting steel plate 5 are made of steel plate materials commonly used in transformer substation construction. The wall bushing 4 is divided into an indoor section and an outdoor section which are connected together through an aluminum alloy flange 6 in the middle.
The installation of the mounting plate device for improving the seismic performance of the wall bushing comprises the following steps:
firstly, two channel steel connecting pieces 8 are pre-embedded at the upper end and the lower end of a reserved square hole 3 of a gable structure 2 of a valve hall 1 through welding;
secondly, the end parts of an upper steel plate and a lower steel plate of the Z-shaped mounting steel plate 5 are welded with a pre-embedded channel steel connecting piece 8 to be firmly fixed in a reserved square hole 3 on a gable wall of the valve hall;
and thirdly, the wall bushing 4 penetrates through a central round hole 13 of the mounting steel plate 5, mounting bolt holes in the lug plates 7 of the metal flanges 6 are aligned with bolt holes 12 in the mounting steel plate 5, and the wall bushing is fastened through mounting bolts 9 to complete anchoring connection of the wall bushing and mounting of the mounting plate device.
Under the action of an earthquake, the bending rigidity of the installation part of the wall bushing can be improved through the Z-shaped installation steel plate 5, the out-of-plane vibration and buckling deformation of the installation plate are effectively inhibited, the adverse swinging influence on the wall bushing caused by the installation plate is reduced, and therefore the anti-seismic performance of the wall bushing 4 is improved.
The scope of the present invention is not limited to the above embodiments, and all equivalent implementations or modifications without departing from the scope of the present invention are intended to be included in the claims of the present application.
Claims (8)
1. A mounting plate device for improving the anti-seismic performance of a wall bushing is characterized by comprising a channel steel connecting piece 8, a Z-shaped mounting steel plate 5, an aluminum alloy flange 6 and a wall bushing 4, wherein the channel steel connecting piece 8 is embedded in a gable 2 of a valve hall;
wherein:
a gable structure 2 of the valve hall 1 is provided with a reserved square hole 3 for a wall bushing 4 to pass through, and the specification of the reserved square hole 3 is matched with the size of a Z-shaped mounting steel plate 5;
the inclination angle of the Z-shaped mounting steel plate 5 can be manufactured according to the inclination angle required by the wall bushing 4 to be mounted; a circular hole 13 is formed in the center of the Z-shaped mounting steel plate 5 for the wall bushing 4 to pass through, and the specification of the reserved circular hole 13 is matched with the size of the wall bushing aluminum alloy flange 6; the Z-shaped mounting steel plate 5 is provided with a plurality of stiffening rib steel plates 11, so that the out-of-plane rigidity of the mounting steel plate can be improved, and the out-of-plane deformation of the mounting steel plate under the action of an earthquake can be inhibited to avoid adverse effects on the wall bushing; two ends of a Z-shaped mounting steel plate 5 are respectively fixed in the square holes 3 of the gable of the valve hall through welding with upper and lower channel steel embedded connecting pieces 8 in the square holes;
the aluminum alloy flange 6 and the wall bushing 4 are fixed in a central round hole 13 on the mounting steel plate through a mounting bolt 9.
2. The mounting plate assembly for improving seismic performance of a wall bushing of claim 1, wherein: the thickness range of the valve hall gable is 200 mm-400 mm, the opening direction of the channel steel embedded part is towards the direction of the valve hall gable, the channel steel embedded part is parallel to the plane direction of the wall body and is fixed in a hole above the valve hall gable through welding, and the length of the channel steel embedded part is consistent with the side length of a square hole of the valve hall gable.
3. The mounting plate assembly for improving seismic performance of a wall bushing of claim 1, wherein: the thickness range of the mounting steel plate is 30-50 mm; the mounting steel plate can be made into a Z shape according to an inclination angle required by the wall bushing to be mounted, wherein the length range of an upper horizontal steel plate and a lower horizontal steel plate connected with the embedded channel steel is 100-150 mm; two triangular steel plate reinforcing members are respectively welded at trisection points at the joints of the middle steel plate and the upper and lower steel plates of the Z-shaped mounting steel plate.
4. The triangular steel plate reinforcing member for reinforcing the joint of the installation steel plates as claimed in claim 3, which is arranged perpendicular to the outer side of the installation steel plates, has a thickness ranging from 15 to 30mm, a width corresponding to the upper and lower steel plates of the "Z" -shaped installation steel plate, and a length ranging from 200 to 300 mm.
5. The mounting plate assembly for improving seismic performance of a wall bushing of claim 1, wherein: the Z-shaped mounting steel plate is welded with four rectangular steel plate reinforcing members from the edge of the central circular hole along two horizontal and vertical orthogonal directions, so that the out-of-plane rigidity of the mounting steel plate can be improved.
6. The rectangular steel plate reinforcing member for improving the external rigidity of the mounting steel plate surface according to claim 5, which is additionally arranged on one side of the aluminum-free flange lug plate and is arranged perpendicular to the external direction of the mounting steel plate, wherein the length of the rectangular steel plate reinforcing member extends from the edge of the central circular hole of the mounting plate to the edge of the mounting plate, the width of the rectangular steel plate reinforcing member ranges from 80 mm to 120mm, and the thickness of the rectangular steel plate reinforcing member ranges from 20mm to 30 mm.
7. The mounting plate assembly for improving seismic performance of a wall bushing of claim 1, wherein: the channel steel embedded part comprises 2 channel steel connecting pieces which are respectively welded at the upper part and the lower part in the hole above the gable of the valve hall, and the end parts of the upper and the lower steel plates of the Z-shaped mounting steel plate are fixed in the reserved square hole on the gable of the valve hall by welding with the embedded channel steel connecting pieces.
8. The mounting plate assembly for improving seismic performance of a wall bushing of claim 1, wherein: the diameter of the central round hole of the Z-shaped mounting steel plate is slightly larger than the diameter of the wall bushing aluminum alloy flange to be mounted; bolt holes matched with the mounting bolts are formed around the central circular hole of the mounting steel plate; the aluminum alloy flange is provided with an ear plate, the ear plate is provided with a bolt mounting hole, and the specification of the bolt mounting hole is matched with that of the bolt hole; the mounting bolt penetrates through the bolt hole and the bolt mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011205519.5A CN112411794A (en) | 2020-11-02 | 2020-11-02 | Mounting plate device for improving anti-seismic performance of wall bushing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011205519.5A CN112411794A (en) | 2020-11-02 | 2020-11-02 | Mounting plate device for improving anti-seismic performance of wall bushing |
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| CN112411794A true CN112411794A (en) | 2021-02-26 |
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| CN202011205519.5A Pending CN112411794A (en) | 2020-11-02 | 2020-11-02 | Mounting plate device for improving anti-seismic performance of wall bushing |
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2020
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| 梁黄彬等: "±800 kV特高压直流穿墙套管的地震易损性分析", 《地震工程与工程振动》 * |
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Application publication date: 20210226 |