CN210482352U - Assembled main basis that becomes of high voltage mortise-tenon joint structure - Google Patents
Assembled main basis that becomes of high voltage mortise-tenon joint structure Download PDFInfo
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- CN210482352U CN210482352U CN201920996101.7U CN201920996101U CN210482352U CN 210482352 U CN210482352 U CN 210482352U CN 201920996101 U CN201920996101 U CN 201920996101U CN 210482352 U CN210482352 U CN 210482352U
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- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 11
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of electric power foundation construction, and discloses a high-voltage tenon-and-mortise structure assembled main transformer foundation; the problems that the assembly type main transformer is heavy in foundation weight, is not firm in connection, is prone to uneven stress and cannot bear high-voltage facilities are solved; the main transformer foundation comprises a plurality of independent components with bulges arranged on the surfaces, wherein the main transformer foundation comprises a bottom plate foundation and buttresses arranged on the bottom plate foundation and meshed with the bottom plate foundation; the bottom plate foundation and the support are both composed of an upper layer of independent components and a lower layer of independent components which are mutually meshed, and the upper layer of independent components and the lower layer of independent components are crossed and meshed to form a mortise and tenon structure; the utility model has the advantages that the independent components are manufactured, maintained and completed in advance, the transportation and the hoisting are convenient, the efficiency of the field work is improved, the independent components on the same layer and the upper and the lower layers are arranged in a crossed way, and the physical occlusion is completely adopted; the cross arrangement of the bottom plate enables the stress to be more uniform and reasonable, the supporting force of the bottom plate and the supporting columns is strong, and the basic requirement of a main transformer with the voltage level of 110kV or above can be met.
Description
Technical Field
The utility model relates to an electric power foundation construction technical field especially relates to a high voltage tenon fourth of twelve earthly branches structure assembled owner becomes basis, is applicable to the high voltage assembled owner more than 110kV and becomes basis.
Background
The traditional 110kV main transformer foundation is a cast-in-place concrete independent foundation, the cast-in-place foundation needs on-site formwork erecting, rib binding, pouring and maintenance, the construction period is long, and the requirement of reconstruction and extension construction period is not met; different basic design sizes are not uniform, the variety of consumed templates is more, and the construction complexity is increased; the field wet operation has great influence on environmental water conservation.
The existing prefabricated main transformer foundation types are all in low voltage grades and are difficult to be applied to main transformers with high voltage grades of 110kV and above, the size of the main transformer foundation is increased as the voltage grade is higher and the main transformer is heavier, and the main transformer foundation is large in size and heavy in structure as the components of the main transformer foundation are large in size and high in hoisting cost on the transportation and construction site, particularly, the reconstruction and expansion project is limited by sites, and large-tonnage crane equipment cannot be applied.
Aiming at the problems, the assembly type main transformer foundation structure is also provided at present, but the connection between the independent structures needs bolts and the like, so that the problems of insecure connection and uneven stress of the bottom plate are caused, most of the independent structures are still overweight and inconvenient to operate, and the main transformer foundation with the voltage level of 110kV or above is difficult to apply.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art exists not enough, become basic connection insecure to present assembled owner, the atress inequality easily appears, can not bear the problem of high voltage facility, provides a high voltage tenon fourth of the twelve earthly branches structure assembled owner and becomes basis, and this structure owner becomes the basis when consolidating the connection, has reduced the weight of unit architecture, is applicable to the high voltage grade.
The utility model discloses a realize through following technical scheme.
A high-voltage assembly type main transformer foundation comprises a plurality of independent components, wherein a plurality of bulges are arranged on the surfaces of the independent components, so that the independent components are vertically crossed, occluded and spliced through the bulges to form a mortise and tenon joint structure; the independent components are vertically connected and fixed through embedded steel bars, the independent components are of wide and flat beam structures, and the ratio of the width to the height of the wide and flat beams is 4-5: 1; each independent member adopts a unique wide flat beam design, and compared with the design of a common plate member, the width and deformation of cracks are greatly reduced.
Further, the main transformer foundation comprises a bottom plate foundation and a plurality of buttresses which are arranged on the bottom plate foundation and meshed with the bottom plate foundation; the buttress is used for preventing the main transformer foundation from laterally deforming; the bottom plate foundation and the buttress are respectively composed of an upper independent component and a lower independent component which are mutually meshed, and the upper independent component and the lower independent component are crossed and meshed.
Furthermore, the lower portion of the bottom plate foundation is provided with a raft bottom plate, the raft bottom plate is composed of a first raft large plate and a second raft large plate, the first raft large plate is provided with reserved invisible bolt holes, the second raft large plate is provided with embedded bolts corresponding to the reserved invisible bolt holes, and the first raft large plate and the second raft large plate are connected through tongue-and-groove joints. The middle of the two large plates is designed by adopting a tongue-and-groove, and the pressure-bearing type high-strength bolts are used for connection, so that the sedimentation of a single component due to the uneven foundation is avoided, and the overall stability of the structure is improved.
Furthermore, the distance between the buttresses is consistent with the track gauge of the transformer to be erected. Meanwhile, the concave-convex pieces are symmetrically arranged on the vertical compression surface of the concave-convex pieces of the bottom plate, so that the requirements of clear force transmission path and uniform stress of the structure are met.
Furthermore, the surfaces of the upper independent component and the lower independent component of the base plate foundation are connected through a steel plate welding seam.
And optimizing on the basis of the previous step, wherein the steel plate is embedded in an upper independent component or a lower independent component on the outermost layer of the base plate. The outermost layer member of the two-layer foundation at the bottom is connected through the full weld joints between the embedded steel plates, the degree of freedom of the outer member is almost reduced to zero, and therefore the overall stability of the foundation is improved.
Furthermore, the independent component include the skeleton and pour the layer on the skeleton, the skeleton include the stirrup structure that two-layer cover was put inside and outside. The full section adopts a composite stirrup form of a large hoop and a small hoop, so that the transportation loss rate is reduced, the local compression damage of the component and the stress concentration generated on the occlusal surface are avoided, and the reuse rate of the component is improved.
Furthermore, the inside of the independent component is provided with a hidden hanging nail. The hidden hanging nails are slightly lower than the surfaces of the independent components, so that no protrusion exists on the plane of each structure, and the layers are attached more tightly.
Furthermore, grouting pores are reserved at the concave-convex occlusion part of the independent component. The requirement of factory prefabrication is met; the grouting material is bonded on site to meet the integrity requirement; the bottom of the concave-convex part is completely matched without a gap, so that the upper part and the lower part are tightly compacted, and the requirement of uniform stress is met.
The utility model discloses produced beneficial effect for prior art does:
the utility model discloses a do not make the maintenance in advance and accomplish independent component, conveniently be used for transportation and hoist and mount, transport the construction field area again and make up, install, improved the efficiency of site work, reduce the work procedure, the reduction of erection time, the feasibility of implementation is strong. The independent members on the same layer and the upper and lower layers are arranged in a crossed manner and completely physically occluded; the cross arrangement of the bottom plates enables the stress to be more uniform and reasonable, the supporting force of the bottom plates and the buttresses is strong, and meanwhile, fewer bolts are connected to reduce the construction difficulty. The composition of the bottom plate and the composition of the buttresses are both engaged in a concave-convex manner and are physically connected, so that the weight of the upper equipment can be uniformly transmitted to the bottom plate through the buttresses; simultaneously, the basic anti-overturning requirement is met; can meet the supporting requirement of the main transformer foundation with the voltage grade of 110kV and above. The raft bottom plates arranged on the lower portion of the bottom plate foundation avoid settlement of a single component due to uneven foundation, and overall stability of the structure is improved. The whole main transformer foundation is through the structure and the relation of connection of each independent component, under the prerequisite of guaranteeing that the basis bears intensity and stability, weight reduces by a wide margin, also is applicable to the high voltage level when conveniently transporting the installation.
Drawings
Fig. 1 is a schematic structural view of embodiment 1.
Fig. 2 is a schematic structural view of the raft base plate without the sheet in example 1.
Fig. 3 is a schematic structural view of a first individual member in embodiment 1.
Fig. 4 is a bottom view of fig. 3.
Fig. 5 is a schematic structural view of a second independent member in embodiment 1.
Fig. 6 is a bottom view of fig. 5.
Fig. 7 is a schematic structural view of a third separate member in embodiment 1.
Fig. 8 is a bottom view of fig. 7.
Fig. 9 is a schematic structural view of a fourth separate member in embodiment 1.
Fig. 10 is a bottom view of fig. 9.
Fig. 11 is a schematic structural view of a fifth individual member in example 1.
Fig. 12 is a bottom view of fig. 11.
Fig. 13 is a schematic structural view of a sixth separate member in embodiment 1.
Fig. 14 is a bottom view of fig. 13.
Fig. 15 is a schematic structural view of a seventh separate member in embodiment 1.
Fig. 16 is a bottom view of fig. 15.
Fig. 17 is a schematic structural view of an eighth separate member in embodiment 1.
Fig. 18 is a bottom view of fig. 17.
Fig. 19 is a schematic structural view of a ninth separate member in embodiment 1.
Fig. 20 is a bottom view of fig. 19.
Fig. 21 is a schematic structural view of a tenth separate member in embodiment 1.
Fig. 22 is a bottom view of fig. 21.
The first independent component 1, the second independent component 2, the third independent component 3, the fourth independent component 4, the fifth independent component 5, the sixth independent component 6, the seventh independent component 7, the eighth independent component 8, the ninth independent component 9, the tenth independent component 10, the steel plate 11, the steel bar 12, the steel bar hole 13, the invisible hoisting ring 14, the invisible bolt hole 15 and the bolt 16 are all independent components.
Detailed Description
In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.
Example 1
As shown in fig. 1, the structure is a 110kV assembled main transformer foundation structure, the main transformer foundation is reasonably split into 14 independent components, and the 14 independent components adopt 6 convex structural modes, as shown in fig. 3-18, which are respectively: the main transformer comprises a first independent component 1, a second independent component 2, a third independent component 3, a fourth independent component 4, a fifth independent component 5, a sixth independent component 6, a seventh independent structure 7 and an eighth independent structure 8, the single weight of each independent structure is 3.4t, the weight of each independent structure is about 2.5t, the ratio of the width to the height is 5:1, the weight of the main transformer is remarkably reduced compared with that of an existing main transformer basic independent structure unit, and a building mode that a factory is prefabricated and then transported to the site is completely realized. And each independent component is provided with an invisible hanging nail, so that the invisible hanging nails are convenient to transport and hoist, and the construction has the feasibility of implementation. Each independent component adopts a unique wide flat beam design, and the whole section adopts a composite stirrup form of a large hoop and a small hoop, so that the transportation loss rate is reduced, the local compression damage of the component and the stress concentration generated on the occlusal surface are avoided, and the reuse rate of the component is improved.
The main transformer foundation comprises a bottom plate foundation and a buttress which is arranged on the bottom plate foundation and meshed with the bottom plate foundation; the bottom plate foundation comprises an upper layer of independent component and a lower layer of independent component which are mutually meshed, the lower layer of independent component of the bottom plate foundation comprises a seventh independent structure 7, a sixth independent structure 6, an eighth independent structure 8, a sixth independent structure 6 and a seventh independent structure 7 which are sequentially and horizontally connected, the bottoms of the seventh independent structure 7, the sixth independent structure 6 and the eighth independent structure 8 are all planar structures, the upper surfaces of the seventh independent structure 7 and the eighth independent structure 8 are respectively provided with three convex surfaces, steel plates 11 are embedded in the three convex surfaces of the seventh independent structure 7, the two convex surfaces on the outer edge of the eighth independent structure 8 are embedded with the steel plates 11, the sixth independent component 6 is provided with two convex surfaces, and the seventh independent structure 7 and the eighth independent structure 8 are respectively arranged with the convex surfaces of the sixth independent structure 6 in a staggered mode.
The upper independent component of the base plate foundation comprises a fifth independent component 5, a fourth independent component 4, a third independent component 3, a fourth independent component 4 and a fifth independent component 5 which are sequentially and horizontally connected, the upper surface and the lower surface of the third independent component 3 are respectively provided with two convex structures, the upper surface of the fourth independent component 4 is respectively provided with three convex surfaces which are respectively two convex surfaces, the lower surface of the fifth independent component 5 is a plane, the lower surface of the fifth independent component is provided with two convex structures, and the convex surfaces of the third independent component 3 and the fourth independent component 4 are arranged in a staggered mode; the upper surfaces of the third independent component 3 and the fifth independent component 5 are both provided with embedded steel bars 12; the lower surfaces of the third independent component 3, the fourth independent component 4 and the fifth independent component 5 on the upper layer are respectively and crossly buckled with the upper surfaces of the seventh independent component 7, the sixth independent component 6 and the eighth independent component 8 on the lower layer, and meanwhile, the peripheral independent components are connected through steel plate welding seams, so that the base of the bottom plate is more stable.
Buttress is upper and lower two-layer also, and the upper strata is first independent component 1, and the upper surface of first independent component 1 is planar structure, and the lower surface is provided with 3 archs, the lower floor be second independent component 2, the upper surface of second independent component 2 have two protruding structures, the lower surface has three protruding structure, detains the lower surface of first independent component 1 and the upper surface of second independent component 2 mutually and forms the buttress, it has reinforcing bar hole 13 to reserve on the second independent component 2, the upper surface of first independent component 1 has steel sheet 11, passes pre-buried reinforcing bar hole 13 through vertically pre-buried reinforcing bar 12.
A raft bottom plate is further connected to the bottom plate foundation, as shown in fig. 19-22, the raft bottom plate is composed of a ninth independent member 9 and a tenth independent member 10, a reserved invisible bolt hole 15 is formed in the ninth independent member 9, a pre-embedded bolt 16 corresponding to the reserved invisible bolt hole 15 is arranged on the tenth independent member 10, and the ninth independent member 9 and the tenth independent member 10 are connected through a tongue-and-groove. The middle of the two large plates is designed by adopting a tongue-and-groove, and the two large plates are connected by utilizing the pressure-bearing type high-strength bolt 16, so that the sedimentation of a single component caused by the uneven foundation is avoided, and the integral stability of the structure is improved.
And the two buttress piers are buckled and connected with the bottom plate foundation and the raft bottom plates to form a main transformer foundation.
The utility model discloses a do not make the maintenance in advance and accomplish independent component, independent component realizes weight because structure and relation of connection that is showing and descends, conveniently is used for transportation and hoist and mount, transports construction field again and makes up, installs, has improved the efficiency of site work, reduces the work procedure, and the reduction of erection time, feasibility of implementation is strong. The independent members on the same layer and the upper and lower layers are arranged in a crossed manner and completely physically occluded; the cross arrangement of the bottom plate enables the stress to be more uniform and reasonable, the supporting force of the bottom plate and the supporting columns is strong, and the basic requirement of a main transformer with the voltage level of 110kV or above can be met. Meanwhile, fewer bolts are used for connecting, so that the construction difficulty is reduced.
The above description is for further details of the present invention with reference to specific preferred embodiments, and it should not be understood that the embodiments of the present invention are limited thereto, and it will be apparent to those skilled in the art that the present invention can be implemented in a plurality of simple deductions or substitutions without departing from the scope of the present invention, and all such alterations and substitutions should be considered as belonging to the present invention, which is defined by the appended claims.
Claims (9)
1. The assembled main transformer foundation with the high-voltage mortise and tenon structure is characterized by comprising a plurality of independent components, wherein a plurality of bulges are arranged on the surfaces of the independent components, so that the independent components are vertically crossed, occluded and spliced through the bulges to form the mortise and tenon structure; the independent components are vertically connected and fixed through embedded steel bars, the independent components are of wide and flat beam structures, and the ratio of the width to the height of the wide and flat beams is 4-5: 1.
2. The assembled main transformer foundation of claim 1, wherein the main transformer foundation comprises a bottom plate foundation and a plurality of buttresses arranged on the bottom plate foundation and engaged with the bottom plate foundation, and the buttresses are used for preventing the main transformer foundation from lateral deformation; the bottom plate foundation and the buttress are respectively composed of an upper independent component and a lower independent component which are mutually meshed, and the upper independent component and the lower independent component are crossed and meshed.
3. The assembled main transformer foundation of the high-voltage mortise and tenon joint structure as claimed in claim 2, wherein a raft bottom plate is arranged on the lower portion of the bottom plate foundation, the raft bottom plate is composed of a first raft large plate and a second raft large plate, the first raft large plate is provided with reserved invisible bolt holes, the second raft large plate is provided with embedded bolts corresponding to the reserved invisible bolt holes, and the first raft large plate and the second raft large plate are connected through tongue-and-groove joints.
4. The assembled main transformer foundation of the high-voltage mortise and tenon joint structure as claimed in claim 2, wherein the distance between the buttresses is consistent with the gauge of the transformer to be erected.
5. The assembled main transformer foundation of the high-voltage mortise and tenon joint structure as claimed in claim 2, wherein the surfaces of the upper independent member and the lower independent member of the bottom plate foundation are connected by a steel plate welding seam.
6. The assembled main transformer foundation of the high-voltage mortise and tenon joint structure as claimed in claim 5, wherein the steel plates are pre-embedded in the upper independent member or the lower independent member of the outermost layer of the bottom plate foundation.
7. The assembled main transformer foundation of the high-voltage mortise and tenon joint structure as claimed in claim 1 or 2, wherein the independent member comprises a framework and a pouring layer on the framework, and the framework comprises a stirrup structure sleeved on an inner layer and an outer layer.
8. The assembled main transformer foundation of the high-voltage mortise and tenon joint structure according to claim 1 or 2, wherein the independent member is internally provided with a hidden hanging nail.
9. The assembled main transformer foundation of the high-voltage mortise and tenon joint structure as claimed in claim 1 or 2, wherein grouting holes are reserved at the concave-convex occlusion parts of the independent members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920996101.7U CN210482352U (en) | 2019-06-28 | 2019-06-28 | Assembled main basis that becomes of high voltage mortise-tenon joint structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920996101.7U CN210482352U (en) | 2019-06-28 | 2019-06-28 | Assembled main basis that becomes of high voltage mortise-tenon joint structure |
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| CN210482352U true CN210482352U (en) | 2020-05-08 |
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| CN201920996101.7U Active CN210482352U (en) | 2019-06-28 | 2019-06-28 | Assembled main basis that becomes of high voltage mortise-tenon joint structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172989A (en) * | 2019-06-28 | 2019-08-27 | 国网山西长治电力勘测设计有限公司 | High voltage joinery and its construction assembled main transformer foundation |
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2019
- 2019-06-28 CN CN201920996101.7U patent/CN210482352U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172989A (en) * | 2019-06-28 | 2019-08-27 | 国网山西长治电力勘测设计有限公司 | High voltage joinery and its construction assembled main transformer foundation |
| CN110172989B (en) * | 2019-06-28 | 2024-02-20 | 国网山西长治电力勘测设计有限公司 | High-voltage mortise and tenon structure assembled main transformer foundation |
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