CN210341972U - Connection structure of offshore wind power foundation and jacket and cylindrical foundation - Google Patents
Connection structure of offshore wind power foundation and jacket and cylindrical foundation Download PDFInfo
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- CN210341972U CN210341972U CN201920794744.3U CN201920794744U CN210341972U CN 210341972 U CN210341972 U CN 210341972U CN 201920794744 U CN201920794744 U CN 201920794744U CN 210341972 U CN210341972 U CN 210341972U
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- cylindrical foundation
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Abstract
The utility model provides a connecting structure of a jacket and a cylindrical foundation, wherein the top of the cylindrical foundation is provided with a transition connecting part for supporting leg columns of the jacket, and the transition connecting part is a conical cylindrical transition connecting part with the inner diameter gradually increased from the bottom of the leg column to the top of the cylindrical foundation; the section of the cylinder wall of the transition connecting part is of an arc-shaped surface structure. The leg post of cylindric basis to the jacket supports through the transition connecting portion of toper tube-shape, and the transition connecting portion gradually grow by its top to bottom internal diameter, can be connected with jacket and cylindric basis stability respectively, and the section of thick bamboo wall terminal surface of transition connecting portion sets up to the arcwall face structure, can effectively avoid rigidity sudden change to produce stress concentration problem. The utility model also provides an offshore wind power basis.
Description
Technical Field
The utility model relates to an offshore wind power basis technical field, more specifically say, relate to a connection structure on offshore wind power basis and jacket and cylindric basis.
Background
The jacket is an offshore wind power foundation which is light in weight, good in adaptability to seabed geological conditions and suitable for deep sea areas. The existing fan jacket leg is connected with the cylindrical foundation, and the jacket leg is connected with the cylindrical foundation through the rib beam. In the deep water district, the jacket basis atress distributes rationally under the environmental load, and the cylindric basis sinks conveniently, and the novel basic pattern greatly reduced the construction degree of difficulty that both combine has saved construction cost.
Offshore wind power jacket is mostly rigid connection with the cylindric basis, carries out the basis installation through the suction negative pressure, because rigidity change is great, has stress concentration's problem in the junction, takes place to destroy easily under the effect of the stormy waves current load. When later stage was retrieved or was maintained again to the jacket, it is very difficult to dismantle the jacket alone, greatly reduced the life cycle of wind field fan basis.
Therefore, how to optimize the connection structure of the jacket and the cylindrical foundation is a problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a connecting structure of a jacket and a cylindrical foundation, so as to optimize the connecting structure of the jacket and the cylindrical foundation; the utility model also provides an offshore wind power basis.
In order to achieve the above object, the utility model provides a following technical scheme:
a connecting structure of a jacket and a cylindrical foundation is characterized in that a transition connecting part for supporting leg columns of the jacket is arranged at the top of the cylindrical foundation, and the transition connecting part is a conical cylindrical transition connecting part with the inner diameter gradually increased from the bottom of the leg column to the top of the cylindrical foundation;
the section of the cylinder wall of the transition connecting part is of an arc-shaped surface structure.
Preferably, in the connection structure of the jacket and the cylindrical foundation, a section of a cylindrical wall of the transition connection part is in an inward concave arc-shaped surface structure.
Preferably, in the connecting structure of the jacket and the cylindrical foundation, the diameter of the arc section of the concave arc-shaped surface structure of the transition connecting part is 1-3 times of the diameter of the cylindrical foundation; the arc angle corresponding to the arc section length of the inner concave arc-shaped surface structure of the transition connecting part is 30-90 degrees.
Preferably, in the connection structure of the jacket and the tubular foundation, a plurality of connection bolts are fixedly connected to the top of the transition connection portion around the circumference thereof, an installation seat overlapping the transition connection portion is arranged at the bottom of the leg, and the installation seat is provided with bolt holes corresponding to the positions of the connection bolts.
Preferably, in the connection structure between the jacket and the tubular foundation, a top plate of the tubular foundation is fixedly provided with a reinforcing rib plate for reinforcing the supporting direction of the top plate, and the bottom of the transition connection part is fixedly connected to the reinforcing rib plate.
Preferably, in the connection structure of the jacket and the cylindrical foundation, the reinforcing rib plate includes a supporting rib plate extending from the center of the cylindrical foundation to the edge thereof in a scattering manner, and an annular mounting rib plate fixedly connected to the supporting rib plate in an annular manner, and the bottom of the transition connection portion is fixedly welded to the annular mounting rib plate.
Preferably, in the connection structure of the jacket and the tubular foundation, the reinforcing rib plate is fixedly welded to a top plate of the tubular foundation.
An offshore wind power foundation comprising a jacket and a cylindrical foundation for mounting the jacket, wherein the top of the cylindrical foundation is provided with a connecting structure for mounting the jacket and the cylindrical foundation for supporting the jacket.
The utility model provides a connecting structure of a jacket and a cylindrical foundation, wherein the top of the cylindrical foundation is provided with a transition connecting part for supporting leg columns of the jacket, and the transition connecting part is a conical cylindrical transition connecting part with the inner diameter gradually increased from the bottom of the leg column to the top of the cylindrical foundation; the section of the cylinder wall of the transition connecting part is of an arc-shaped surface structure. The leg post of cylindric basis to the jacket supports through the transition connecting portion of toper tube-shape, and the transition connecting portion gradually grow by its top to bottom internal diameter, can be connected with jacket and cylindric basis stability respectively, and the section of thick bamboo wall terminal surface of transition connecting portion sets up to the arcwall face structure, can effectively avoid rigidity sudden change to produce stress concentration problem.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of a connection structure of a jacket and a cylindrical foundation according to the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is an enlarged view of a portion of the connection between the jacket and the transition joint of FIG. 1;
FIG. 4 is a top view of FIG. 3;
fig. 5 is a cross-sectional view of a bottom structure of a jacket in a connection structure of the jacket and a cylindrical foundation according to the present invention;
FIG. 6 is a top view of FIG. 5;
FIG. 7 is a front view of the transition joint of FIG. 1;
FIG. 8 is a top view of FIG. 7;
fig. 9 is a schematic view of the arrangement structure of the reinforcing rib plate on the cylindrical foundation in fig. 1.
Detailed Description
The utility model discloses a connecting structure of a jacket and a cylindrical foundation, which optimizes the connecting structure of the jacket and the cylindrical foundation; the utility model also provides an offshore wind power basis.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 9, fig. 1 is a front view of a connection structure of a jacket and a cylindrical foundation provided by the present invention; FIG. 2 is a top view of FIG. 1; FIG. 3 is an enlarged view of a portion of the connection between the jacket and the transition joint of FIG. 1; FIG. 4 is a top view of FIG. 3; fig. 5 is a cross-sectional view of a bottom structure of a jacket in a connection structure of the jacket and a cylindrical foundation according to the present invention; FIG. 6 is a top view of FIG. 5; FIG. 7 is a front view of the transition joint of FIG. 1; FIG. 8 is a top view of FIG. 7; fig. 9 is a schematic view of the arrangement structure of the reinforcing rib plate on the cylindrical foundation in fig. 1.
The utility model provides a connecting structure of a jacket and a cylindrical foundation, wherein the top of the cylindrical foundation 3 is provided with a transition connecting part 2 for supporting leg columns of the jacket 1, and the transition connecting part 2 is a conical cylindrical transition connecting part 2 with the inner diameter gradually increased from the bottom of the leg column to the top of the cylindrical foundation 3; the section of the cylinder wall of the transition connecting part 2 is of an arc-shaped surface structure. The leg post of cylindric basis 3 to jacket 1 supports through the transition connecting portion 2 of toper tube-shape, and transition connecting portion 2 is by its top to the gradual grow of bottom internal diameter, can respectively with jacket 1 and the stable connection of cylindric basis 3, and the section of thick bamboo wall terminal surface of transition connecting portion 2 sets up to the arcwall face structure, can effectively avoid rigidity sudden change to produce stress concentration problem.
Preferably, the section of the cylinder wall of the transition connecting part 2 is an inward concave arc-shaped surface structure. The vertical section structure of section of thick bamboo wall of transition connecting portion 2 sets up to indent arc face structure, and transition connecting portion 2 wholly is toper tubular structure, when receiving the environmental load, toper tubular structure's transition connecting portion 2 can carry out rational distribution to the atress, avoids stress concentration. The conical surface of the transition connecting portion adopts an inwards concave arc-shaped surface structure, so that the bearing capacity is further improved, and the stability of the connecting structure of the jacket and the cylindrical foundation is ensured.
In one embodiment of the scheme, the diameter of the arc section of the concave arc-shaped surface structure of the transition connecting part 2 is 1-3 times of the diameter of the cylindrical base; the arc angle corresponding to the arc section length of the inner concave arc surface structure of the transition connecting part 2 is 30-90 degrees. The transition joint 2 simultaneously bears the stress on the jacket 1 and the cylindrical foundation 3 under the action of environmental load, so that the structural strength and the stability of the connection structure of the transition joint are required to be ensured.
The section of the cylinder wall of the transition connecting part 2 is of an inwards concave arc-shaped surface structure, when a bus is designed on the conical cylinder wall of the transition connecting part 2, the size of the radian of the bus has important influences on the bearing of the transition connecting part and the connection strength of the transition connecting part 2 with the jacket 1 and the cylindrical foundation 3, particularly, the connection size of the transition connecting part 2 and the leg part of the jacket 1 is close, if the radian of the bus is too large, the change of the diameter size of the transition connecting part 2 along the axial direction is small, the contact area of the transition connecting part 2 and the cylindrical foundation 3 is small, and the connection strength is; the radian of the bus is too small, and the height of the transition connecting part 2 is compressed, so that a better stress distribution function cannot be realized.
In this embodiment, for guaranteeing the structural strength of transition connecting portion 2 self, its self size of a dimension, and have sufficient joint strength with cylindric basis 3, arc length and arc angle through the indent arcwall face structure place to transition connecting portion 2 are controlled, through the regulation to arc diameter and arc angle, with its support area to transition connecting portion and cylindric basis, and the self high dimension of transition connecting portion is controlled, when guaranteeing its joint strength, carry out the active dispersion to environmental load.
In an embodiment of the present disclosure, the top of the transition connection portion 2 is fixedly connected to a plurality of connection bolts 4 around the circumference thereof, the bottom of the leg post is provided with a mounting seat 11 overlapping the transition connection portion 2, and the mounting seat 11 is provided with bolt holes corresponding to the positions of the connection bolts. The jacket 1 adopts removable connection structure with transition connecting portion 2, and the leg post outer lane of jacket 1 encircles arranges mount pad 11, adorns jacket 1 steady rest in the tubular structure's of transition connecting portion 2 top by mount pad 11, encircles a plurality of connecting bolt 4 of arranging on the transition connecting portion 2, corresponds and sets up the bolt hole on the mount pad 11, and the leg post is placed transition connecting portion 2 and is gone up the back, and connecting bolt 4 inserts the bolt hole that corresponds the position, locks the two through nut 5. Preferably, the number of the connecting bolts 4 is set to be 15-30 according to the environmental conditions, the mounting seats arranged on the leg columns of the jacket 1 are annularly arranged, bolt holes are arranged in the mounting seats, the number of the bolt holes is 15-30, and the connecting bolts 4 penetrating through the bottom mounting seat of the jacket 1 are screwed through nuts 5.
When the jacket 1 is installed, the jacket 1 is connected with the transition connecting part 2 at a wharf through the connecting bolt 4 and the nut 5, and the bolt holes in the bottom of the jacket 1 can correspond to the connecting bolts 4 on the top of the transition connecting part 2 one by one. And transporting the cylindrical foundation to a specified construction position and then sinking and installing. When the jacket is recovered or maintained again, the nut 5 is unscrewed through the underwater robot, and the jacket is hoisted to discharge water and is transported back to the wharf for reuse or maintenance.
In an embodiment of the present disclosure, a reinforcing rib plate 6 for reinforcing the supporting direction of the cylindrical foundation 3 is fixedly disposed on the top plate, and the bottom of the transition connection portion 2 is fixedly connected to the reinforcing rib plate 6. The jacket 1 is supported at the top of the cylindrical foundation 3 through the transition connection part 2, and the jacket cannot be stably supported by the ejector rod mounting structure at the top of the cylindrical foundation 3 because the bottom dimension of the transition connection part 2 can change in the diameter direction according to different offshore environments through the transition connection part 2.
By providing the stiffened plate 6 on the tubular foundation 3, the stiffened plate 6 can provide for transferring the weight of the jacket 1 to the tubular foundation 3 in the direction of support thereof, thereby ensuring sufficient support strength of the jacket 1. Specifically, the reinforcing rib plate 6 is fixedly connected with the inner wall of the cylindrical foundation 3 along the radial direction of the cylindrical foundation 3, so that the stability of the supporting strength is ensured. ,
in one embodiment of the present invention, the reinforcing rib 6 comprises a supporting rib 61 extending from the center of the cylindrical foundation to the edge thereof in a scattering manner, and an annular mounting rib 62 fixedly connected to the supporting rib 61 in an annular manner, wherein the bottom of the transition connection part 2 is fixedly welded to the annular mounting rib 62. The reinforcing rib plate 6 can be arranged in the radial direction of the cylindrical foundation 3 in a spanning mode through the supporting rib plate 61 of the scattering-shaped structure to transmit the gravity of the jacket 1 to the cylindrical wall of the cylindrical foundation 3, and meanwhile, the annular mounting rib plate 62 of the annular structure is arranged and used for having enough contact area with the cylindrical bottom of the transition connecting part 2 so as to ensure enough connection strength of the jacket 1 when the jacket is subjected to shearing force. The supporting rib plates can be provided with inner ring rib plates and radial rib plates which are concentrically arranged with the cylindrical foundation, so that the connection strength between the supporting rib plates is improved.
In an embodiment of the present disclosure, the reinforcing rib 6 is welded and fixed to the top plate of the cylindrical foundation 3. The reinforcing rib plate 6 is fixed on the top of the cylindrical foundation 3 by welding, so that the structural stability of fixedly connecting the reinforcing rib plate and the cylindrical foundation is ensured.
Based on jacket and the connection structure on cylindric basis that provides in the above-mentioned embodiment, the utility model also provides an offshore wind power basis, including jacket and the cylindric basis of rack dress jacket, the top on this cylindric basis is provided with the jacket that props the jacket that the jacket provided in the above-mentioned embodiment provided and the connection structure on cylindric basis.
Because the offshore wind power foundation adopts the connecting structure of the jacket and the cylindrical foundation of the embodiment, please refer to the embodiment for the beneficial effects brought by the connecting structure of the jacket and the cylindrical foundation of the offshore wind power foundation.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A connecting structure of a jacket and a cylindrical foundation is characterized in that a transition connecting part for supporting a leg column of the jacket is arranged at the top of the cylindrical foundation, and the transition connecting part is a conical cylindrical transition connecting part with the inner diameter gradually increased from the bottom of the leg column to the top of the cylindrical foundation;
the section of the cylinder wall of the transition connecting part is of an arc-shaped surface structure.
2. A connection structure of a jacket and a cylindrical foundation according to claim 1, wherein the section of the cylinder wall of the transition connection part is an inward concave arc-shaped surface structure.
3. The jacket and cylindrical foundation connection structure of claim 2, wherein the inner concave arc surface structure of the transition connection part has an arc section diameter 1-3 times of the cylindrical foundation diameter; the arc angle corresponding to the arc section length of the inner concave arc-shaped surface structure of the transition connecting part is 30-90 degrees.
4. The connecting structure of a jacket and a cylindrical foundation according to claim 2, wherein a plurality of connecting bolts are fixedly connected to the top of the transition connecting portion around the circumference thereof, and a mounting seat is provided at the bottom of the leg post to be lapped on the transition connecting portion, and the mounting seat is provided with bolt holes corresponding to the positions of the connecting bolts.
5. The jacket and cylindrical foundation connection structure according to claim 2, wherein a top plate of the cylindrical foundation is fixedly provided with a reinforcing rib plate for reinforcing the supporting direction of the cylindrical foundation, and the bottom of the transition connection part is fixedly connected to the reinforcing rib plate.
6. The connecting structure of the jacket and the cylindrical foundation according to claim 5, wherein the reinforcing rib plates comprise supporting rib plates which extend from the center of the cylindrical foundation to the edge of the cylindrical foundation in a scattering manner, and annular mounting rib plates which are fixedly connected to the supporting rib plates in an annular manner, and the bottoms of the transition connecting parts are fixedly welded to the annular mounting rib plates.
7. The connecting structure of the jacket and the cylindrical foundation according to claim 5, wherein the reinforcing rib plates are fixedly welded to the top plate of the cylindrical foundation.
8. An offshore wind power foundation comprising a jacket and a tubular foundation encasing the jacket, wherein the top of the tubular foundation is provided with a connection structure for the jacket and the tubular foundation according to any one of claims 1 to 7 that encases the jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920794744.3U CN210341972U (en) | 2019-05-29 | 2019-05-29 | Connection structure of offshore wind power foundation and jacket and cylindrical foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920794744.3U CN210341972U (en) | 2019-05-29 | 2019-05-29 | Connection structure of offshore wind power foundation and jacket and cylindrical foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210341972U true CN210341972U (en) | 2020-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920794744.3U Active CN210341972U (en) | 2019-05-29 | 2019-05-29 | Connection structure of offshore wind power foundation and jacket and cylindrical foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210341972U (en) |
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2019
- 2019-05-29 CN CN201920794744.3U patent/CN210341972U/en active Active
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