CN113882422B - Offshore wind power jacket foundation transition section structure and manufacturing method thereof - Google Patents
Offshore wind power jacket foundation transition section structure and manufacturing method thereof Download PDFInfo
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- CN113882422B CN113882422B CN202111204908.0A CN202111204908A CN113882422B CN 113882422 B CN113882422 B CN 113882422B CN 202111204908 A CN202111204908 A CN 202111204908A CN 113882422 B CN113882422 B CN 113882422B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention relates to a transition section structure of an offshore wind power jacket foundation and a manufacturing method thereof, which are characterized in that: wherein offshore wind power jacket basis changeover portion structure includes roof, bottom plate and the fixed vertical main steel pipe in center hole of wearing to establish in roof, bottom plate centre bore that parallel interval set up to and the equipartition wears to establish a plurality of groups support columns in roof, bottom plate week side, the week side that just is located the vertical main steel pipe in center between roof and the bottom plate is equipped with a plurality of side web, wherein is equipped with the inside support board between the two adjacent side webs, the first end of side web is tangent with the support column, side web second end intersects with the vertical main steel pipe in center, wherein with the tangent double-phase adjacent side web of same support column about an array face symmetry, the array face is the central line place face of the vertical main steel pipe in center and support column. The transition section of the offshore wind power jacket foundation is reasonable in structural design and is beneficial to meeting the requirement of installation of a large-capacity wind turbine generator.
Description
The technical field is as follows:
the invention relates to a transition section structure of an offshore wind power jacket foundation and a manufacturing method thereof.
Background art:
wind energy is used as an efficient and clean energy source, and is one of the most mature, most scaled development conditions and most commercialized development prospect power generation modes in the field of new energy; at present, offshore wind power foundations are various in type, wherein a jacket foundation is suitable for an ocean environment with larger water depth; jacket foundations are generally divided into three-pile jacket foundations and four-pile jacket foundations according to the difference in the number of main legs.
The schematic diagram of the fan foundation is shown in fig. 1, the transition section structure of the jacket foundation is located at the top of the jacket foundation, the upper part of the transition section structure is connected with a fan tower, the lower part of the transition section structure is connected with a jacket, and the load of a fan is transmitted to the lower jacket through the transition section and then transmitted into the soil body, so that the transition section has a key function of bearing up and down, and the scheme design of the transition section is a key step influencing the design of the jacket foundation.
Meanwhile, with the advent of continuously updated large-capacity fan units, fan manufacturers require that transition sections need to meet equipment arrangement and subsequent operation and maintenance platforms at the same time, but the traditional jacket transition section structure is mainly a force transmission structure, the space utilization rate of the transition section platform is low, and the equipment arrangement and the subsequent fan operation and maintenance of the fan manufacturers are not facilitated; therefore, the transformation of the traditional suction type jacket foundation transition section structure to meet the operation requirement of a high-capacity wind turbine generator set becomes a key problem to be solved at present, and in addition, the traditional suction type jacket foundation transition section structure is unreasonable in design, so that the processing difficulty is high.
The invention content is as follows:
in view of the above, the invention aims to provide a transition section structure of an offshore wind power jacket foundation, which is reasonable in structural design and beneficial to meeting the requirement of installation of a large-capacity wind turbine generator.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention relates to a basic transition section structure of an offshore wind power jacket, which is characterized in that: roof, bottom plate and the fixed vertical main steel pipe in center of wearing to establish in roof, bottom plate centre bore that set up including parallel interval to and the equipartition wear to establish a plurality of group's support columns in roof, bottom plate week side, the week side that just is located the vertical main steel pipe in center between roof and the bottom plate is equipped with a plurality of side web, wherein is equipped with inside backup pad between the two adjacent side webs, the first end of side web is tangent with the support column, side web second end is crossing with the vertical main steel pipe in center, wherein with the tangent double-phase adjacent side web of same support column about an array face symmetry, the array face is the central line place face of the vertical main steel pipe in center and support column.
Furthermore, the inner supporting plate is provided with a lightening hole, the periphery of the lightening hole is provided with an inner reinforcing ring formed by a steel pipe ring, and a temporary manhole is arranged on the side web plate.
Further, the upper surface of above-mentioned roof is equipped with the landing slab, the week side of landing slab is equipped with the railing.
Furthermore, three groups of supporting columns are arranged on the periphery sides of the top plate and the bottom plate, the top plate is composed of a first top plate and three aligned second top plates, the bottom plate is composed of a first bottom plate and three aligned second bottom plates, the first top plate and the first bottom plate are both in a 6-edge shape, the second top plate and the second bottom plate are in an acute triangle with a fillet, the supporting columns are close to the fillets, the supporting columns and the fillets are concentric, the three second top plates are respectively connected with three edges of the first top plate, and the three second bottom plates are respectively connected with three edges of the first bottom plate; the side webs comprise a first side web and a second side web which are mutually welded side by side to form a straight plate, the first side web is erected between the first top plate and the first bottom plate, and the second side web is erected between the second top plate and the second bottom plate.
Furthermore, four groups of supporting columns are arranged on the periphery sides of the top plate and the bottom plate, the top plate is composed of a first top plate and four aligned second top plates, the bottom plate is composed of a first bottom plate and four aligned second bottom plates, the first top plate and the first bottom plate are both in an 8-edge shape, the second top plate and the second bottom plate are in an acute triangle with a fillet, the supporting columns are close to the fillets, the supporting columns and the fillets are concentric, the four second top plates are respectively connected with four edges of the first top plate, and the four second bottom plates are respectively connected with four edges of the first bottom plate; the side webs comprise a first side web and a second side web which are mutually welded side by side to form a straight plate, the first side web is erected between the first top plate and the first bottom plate, and the second side web is erected between the second top plate and the second bottom plate.
Further, the upper end of above-mentioned vertical main steel pipe in center is equipped with the ring flange, and the periphery wall interval that just is located the vertical main steel pipe in center at the upper surface of roof is equipped with the outer deep floor of a plurality of groups, outer deep floor includes one section arc slat and connects a plurality of muscle pieces between arc slat and roof upper surface, and this arc slat and roof upper surface parallel interval set up, and the interior week of arc slat is laminated with the outer peripheral wall of the vertical main steel pipe in center mutually, and the muscle piece is the polygon, and its one side is connected on the lower surface of arc slat, connects on the periphery wall of the vertical main steel pipe in center on one side, connects on the upper surface of roof on one side.
Furthermore, the inner circumferential wall of the central vertical main steel pipe is provided with a circle of inner reinforcing rib plates, each inner reinforcing rib plate comprises two circular ring pieces arranged in parallel at intervals and a plurality of rib pieces arranged between the two circular ring pieces at intervals, each rib piece is polygonal, two sides of each rib piece are respectively connected to the upper surface and the lower surface of the two circular ring pieces, and one side of each rib piece is connected to the outer circumferential wall of the central vertical main steel pipe.
The invention relates to a manufacturing method of a foundation transition section structure of an offshore wind power jacket, which is characterized by comprising the following steps of: the offshore wind power jacket foundation transition section structure comprises a top plate, a bottom plate, a central vertical main steel pipe and a plurality of groups of support columns, wherein the top plate, the bottom plate and the central vertical main steel pipe are arranged in parallel at intervals, the central vertical main steel pipe is fixedly arranged in central holes of the top plate and the bottom plate, the support columns are uniformly arranged on the peripheral sides of the top plate and the bottom plate, a plurality of side web plates are arranged between the top plate and the bottom plate and positioned on the peripheral sides of the central vertical main steel pipe, an internal support plate is arranged between every two adjacent side web plates, the first ends of the side web plates are tangent to the support columns, the second ends of the side web plates are intersected with the central vertical main steel pipe, two adjacent side web plates tangent to the same support column are symmetrical about an array surface, and the array surface is the surface where the central lines of the central vertical main steel pipe and the support columns are located; three groups of supporting columns are arranged on the periphery sides of the top plate and the bottom plate, the top plate is composed of a first top plate and three aligned second top plates, the bottom plate is composed of a first bottom plate and three aligned second bottom plates, the first top plate and the first bottom plate are both in a 6-edge shape, the second top plate and the second bottom plate are in an acute triangle shape with a fillet, the supporting columns are close to the fillets, the supporting columns and the fillets are concentric, the three second top plates are respectively connected with three edges of the first top plate, and the three second bottom plates are respectively connected with three edges of the first bottom plate; the side webs comprise a first side web and a second side web which are mutually welded side by side to form a straight plate, the first side web is erected between the first top plate and the first bottom plate, and the second side web is erected between the second top plate and the second bottom plate; when the first module and the second module are manufactured, the first module comprises a first top plate, a first bottom plate, a central vertical main steel pipe and a first side web plate which is welded between the first top plate and the first bottom plate and is positioned on the peripheral wall of the central vertical main steel pipe; the second module comprises a second top plate, a second bottom plate, a support column, a second side web plate and an inner support plate, wherein the second side web plate and the inner support plate are welded between the second top plate and the second bottom plate; when a first block and a second block are prefabricated, welding the components of the first block and the second block into the first block and the second block, wherein the first block is provided with one group, the second block is provided with two groups, the second blocks are uniformly distributed on the periphery of the first block, welding personnel enters the interior of the first block and the second block through a temporary manhole formed in a side web plate, the seam of a first top plate and a second top plate is welded, the seam of a first bottom plate and a second bottom plate is welded, and the seam of a first side web plate and a second side web plate is welded; welding seams of the central vertical main steel pipe and the first side web plate, the first top plate and the second top plate; and finally, after the welding personnel come out of the temporary manhole, welding and sealing the temporary manhole by using an iron plate.
Furthermore, a flange is arranged at the upper end of the central vertical main steel pipe, a plurality of groups of outer reinforcing rib plates are arranged on the upper surface of the top plate and on the outer peripheral wall of the central vertical main steel pipe at intervals, each outer reinforcing rib plate comprises a section of arc-shaped slat and a plurality of rib plates connected between the arc-shaped slat and the upper surface of the top plate, the arc-shaped slats and the upper surface of the top plate are arranged in parallel at intervals, the inner periphery of each arc-shaped slat is attached to the outer peripheral wall of the central vertical main steel pipe, each rib plate is polygonal, one side of each rib plate is connected to the lower surface of the corresponding arc-shaped slat, the other side of each rib plate is connected to the outer peripheral wall of the central vertical main steel pipe, and the other side of each rib plate is connected to the upper surface of the top plate; during manufacturing, the flange plate is coaxially welded at the upper end of the central vertical main steel pipe, three groups of outer reinforcing rib plates are welded on the upper surface of the top plate and on the outer peripheral wall of the central vertical main steel pipe at intervals, when the outer reinforcing rib plates are welded, a plurality of rib plates are welded on the outer peripheral wall of the central vertical main steel pipe and the upper surface of the top plate, and then arc-shaped strips are welded on the rib plates.
Furthermore, a circle of inner reinforcing rib plates are arranged on the inner peripheral wall of the central vertical main steel pipe, each inner reinforcing rib plate comprises two annular sheets arranged in parallel at intervals and a plurality of rib sheets arranged between the two annular sheets at intervals, each rib sheet is polygonal, two sides of each rib sheet are respectively connected to the upper surface and the lower surface of each annular sheet, and one side of each rib sheet is connected to the outer peripheral wall of the central vertical main steel pipe; during the preparation, weld the ring piece that two parallel intervals set up on the internal perisporium of the vertical main steel pipe in center earlier, a plurality of muscle pieces of interval welding between two ring pieces.
The invention has the beneficial effects that:
(1) The transition section structure mainly adopts a mode of assembling and welding straight plates, vertical plates and cylindrical barrel sections, the structural type is simpler, and the processing difficulty is smaller;
(2) The integral rigidity of the transition section structure is higher, the single-machine capacity of the fan is increased, the structural size is not changed greatly, and steel is saved;
(3) The plane area formed by the top plate of the transition section structure can be used as an arrangement platform and a maintenance platform of equipment of a fan manufacturer, the space of the equipment platform is relatively large, and the space utilization rate is high;
(4) The lightening hole formed by the internal supporting plate and the internal reinforcing ring not only provides an internal welding operation space channel, but also reduces the total weight of the foundation;
(5) The setting of interim population has effectively solved the difficult problem that can't weld in the enclosure space that is formed by web, roof, bottom plate and the vertical main steel pipe in center, and but the web offers the cutting panel of interim manhole department and treats that the internal work is accomplished the normal position welding, saves raw and other materials, avoids the material extravagant.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to specific embodiments and accompanying drawings.
Description of the drawings:
FIG. 1 is a schematic diagram of a prior art jacket infrastructure;
FIG. 2 is a perspective view of one embodiment of a jacket base transition section of the present invention;
FIG. 3 is a perspective view of another embodiment of a jacket base transition section of the present invention;
FIG. 4 is a schematic top cross-sectional configuration of a transition section of a jacket foundation according to the present invention;
FIG. 5 is a perspective view of a first block;
FIG. 6 is a perspective view of a second block;
FIG. 7 is a perspective view of the first block and 3 second blocks in combination;
FIG. 8 is a front view configuration schematic of the internal support plate;
fig. 9 is a perspective view of a base transition section of the jacket of the present invention.
The specific implementation mode is as follows:
the transition section structure of the offshore wind power jacket foundation comprises a top plate 1, a bottom plate 2, a central vertical main steel pipe 3 and a plurality of groups of support columns 4, wherein the top plate 1 and the bottom plate are arranged in parallel at intervals, the central vertical main steel pipe 3 is fixedly arranged in a central hole of the top plate and the bottom plate, the support columns 4 are uniformly arranged on the periphery of the top plate and the bottom plate, the through holes are also connected with the support columns in a penetrating mode, a plurality of side web plates 5 are arranged between the top plate and the bottom plate and located on the periphery of the central vertical main steel pipe, an internal support plate 6 is arranged between two adjacent side web plates, the first ends of the side web plates are tangent to the support columns, the second ends of the side web plates are intersected with the central vertical main steel pipe, the two adjacent side web plates tangent to the same support column are symmetrical about an array surface 7, and the array surface 7 is a surface where the central lines of the central vertical main steel pipe and the support columns are located.
Further, in order to reduce the weight, the inner supporting plate is provided with a lightening hole 8, the periphery of the lightening hole 8 is provided with an inner reinforcing ring 9 which is made of a steel pipe ring, and a temporary manhole 10 is arranged on the side web plate.
Further, the upper surface of above-mentioned roof is equipped with landing slab 11, the week side of landing slab is equipped with railing 12, and this landing slab 11 can be the one deck plate body of stack on the roof, also can be the plane that extends local area on the roof in order to form with the roof parallel and level.
In an embodiment, in order to facilitate construction and improve manufacturing efficiency, three groups of supporting columns 4 are arranged on the periphery of the top plate 1 and the bottom plate 2, the top plate is composed of a first top plate 101 and three aligned second top plates 102, the bottom plate is composed of a first bottom plate 201 and three aligned second bottom plates 202, the first top plate 101 and the first bottom plate 201 are both in a 6-edge shape, the 6-edge shape can be equilateral or not, the second top plate 102 and the second bottom plate 202 are in an acute triangle shape with a fillet, the supporting columns are close to the fillet 401, the supporting columns 4 are concentric with the fillet 401, the three second top plates are respectively connected with three sides of the first top plate, and the three second bottom plates are respectively connected with three sides of the first bottom plate; the side web 5 comprises a first side web 501 and a second side web 502 welded side by side to form a straight plate, the first side web 501 is erected between the first top plate 101 and the first bottom plate 201, and the second side web 502 is erected between the second top plate 102 and the second bottom plate 202.
In another embodiment, in order to facilitate construction and improve manufacturing efficiency, four groups of support columns 4 are arranged on the periphery of the top plate 1 and the bottom plate 2, the top plate is composed of a first top plate 101a and four aligned second top plates 102a, the bottom plate 2 is composed of a first bottom plate 201a and four aligned second bottom plates 202a, the first top plate and the first bottom plate are both in an 8-edge shape, the second top plate and the second bottom plate are in an acute triangle shape with rounded corners, the support columns are close to the rounded corners 401a, the support columns and the rounded corners are concentric, the four second top plates are respectively connected with four edges of the first top plate, and the four second bottom plates are respectively connected with four edges of the first bottom plate; the side web 5 comprises a first side web 501a and a second side web 502a welded side by side to form a straight plate, the first side web is erected between a first top plate and a first bottom plate, and the second side web is erected between a second top plate and a second bottom plate.
Further, in order to facilitate connection and increase the strength of the transition section, the upper end of the central vertical main steel pipe is provided with a flange 13, a plurality of groups of outer reinforcing rib plates 14 are arranged on the upper surface of the top plate and on the outer peripheral wall of the central vertical main steel pipe at intervals, each outer reinforcing rib plate comprises a section of arc-shaped strip 1401 and a plurality of rib plates 1402 connected between the arc-shaped strip and the upper surface of the top plate, the arc-shaped strip and the upper surface of the top plate are arranged at intervals in parallel, the inner periphery of the arc-shaped strip is attached to the outer peripheral wall of the central vertical main steel pipe, each rib plate is polygonal, one side of each rib plate is connected to the lower surface of the arc-shaped strip, the other side of each rib plate is connected to the outer peripheral wall of the central vertical main steel pipe, and the other side of each rib plate is connected to the upper surface of the top plate.
Further, be equipped with the interior deep floor 15 of round on the internal perisporium of above-mentioned vertical main steel pipe in center, interior deep floor includes that the ring piece 1501 that two parallel intervals set up and a plurality of muscle pieces 1502 between two ring pieces are established to the interval, the muscle piece is the polygon, and its two limits are connected respectively on the upper and lower surface of two ring pieces, and wherein one side is connected on the periphery wall of the vertical main steel pipe in center.
The invention relates to a manufacturing method of a foundation transition section structure of an offshore wind power jacket, which is characterized by comprising the following steps of: the offshore wind power jacket foundation transition section structure comprises a top plate, a bottom plate, a central vertical main steel pipe and a plurality of groups of support columns, wherein the top plate, the bottom plate and the central vertical main steel pipe are arranged in parallel at intervals, the central vertical main steel pipe is fixedly arranged in central holes of the top plate and the bottom plate, the support columns are uniformly arranged on the peripheral sides of the top plate and the bottom plate, a plurality of side web plates are arranged between the top plate and the bottom plate and positioned on the peripheral sides of the central vertical main steel pipe, an internal support plate is arranged between every two adjacent side web plates, the first ends of the side web plates are tangent to the support columns, the second ends of the side web plates are intersected with the central vertical main steel pipe, two adjacent side web plates tangent to the same support column are symmetrical about an array surface, and the array surface is the surface where the central lines of the central vertical main steel pipe and the support columns are located; three groups of supporting columns are arranged on the peripheral sides of the top plate and the bottom plate, the top plate consists of a first top plate and three aligned second top plates, the bottom plate consists of a first bottom plate and three aligned second bottom plates, the first top plate and the first bottom plate are both in a 6-edge shape, the second top plate and the second bottom plate are in an acute triangle with a fillet, the supporting columns are close to the fillets, the supporting columns and the fillets are concentric, the three second top plates are respectively connected with three edges of the first top plate, and the three second bottom plates are respectively connected with three edges of the first bottom plate; the side webs comprise a first side web and a second side web which are mutually welded side by side to form a straight plate, the first side web is erected between the first top plate and the first bottom plate, and the second side web is erected between the second top plate and the second bottom plate; when the first module and the second module are manufactured, the first module comprises a first top plate, a first bottom plate, a central vertical main steel pipe and a first side web plate which is welded between the first top plate and the first bottom plate and is positioned on the peripheral wall of the central vertical main steel pipe; the second block comprises a second top plate, a second bottom plate, a support column, a second side web and an inner support plate, wherein the second side web and the inner support plate are welded between the second top plate and the second bottom plate; when a first block and a second block are prefabricated, welding the components of the first block and the second block into the first block and the second block, wherein the first block is provided with one group, the second block is provided with two groups, the second blocks are uniformly distributed on the periphery of the first block, welding personnel enters the interior of the first block and the second block through a temporary manhole formed in a side web plate, the seam of a first top plate and a second top plate is welded, the seam of a first bottom plate and a second bottom plate is welded, and the seam of a first side web plate and a second side web plate is welded; welding seams of the central vertical main steel pipe and the first side web plate, the first top plate and the second top plate; and finally, after the welder comes out of the temporary manhole, welding and sealing the temporary manhole by using an iron plate.
Furthermore, a flange is arranged at the upper end of the central vertical main steel pipe, a plurality of groups of outer reinforcing rib plates are arranged on the upper surface of the top plate and on the outer peripheral wall of the central vertical main steel pipe at intervals, each outer reinforcing rib plate comprises a section of arc-shaped slat and a plurality of rib plates connected between the arc-shaped slat and the upper surface of the top plate, the arc-shaped slats and the upper surface of the top plate are arranged in parallel at intervals, the inner periphery of each arc-shaped slat is attached to the outer peripheral wall of the central vertical main steel pipe, each rib plate is polygonal, one side of each rib plate is connected to the lower surface of the corresponding arc-shaped slat, the other side of each rib plate is connected to the outer peripheral wall of the central vertical main steel pipe, and the other side of each rib plate is connected to the upper surface of the top plate; during manufacturing, the flange plate is coaxially welded at the upper end of the central vertical main steel pipe, three groups of outer reinforcing rib plates are welded on the upper surface of the top plate and on the outer peripheral wall of the central vertical main steel pipe at intervals, when the outer reinforcing rib plates are welded, a plurality of rib plates are welded on the outer peripheral wall of the central vertical main steel pipe and the upper surface of the top plate, and then arc-shaped strips are welded on the rib plates.
Furthermore, a circle of inner reinforcing rib plates are arranged on the inner peripheral wall of the central vertical main steel pipe, each inner reinforcing rib plate comprises two annular sheets arranged in parallel at intervals and a plurality of rib sheets arranged between the two annular sheets at intervals, each rib sheet is polygonal, two sides of each rib sheet are respectively connected to the upper surface and the lower surface of each annular sheet, and one side of each rib sheet is connected to the outer peripheral wall of the central vertical main steel pipe; during the preparation, weld the ring piece that two parallel intervals set up on the internal perisporium of the vertical main steel pipe in center earlier, a plurality of muscle pieces of interval welding between two ring pieces.
The beneficial effects of the invention are:
(1) The transition section structure mainly adopts a welding mode of a flat plate, a vertical plate and a cylindrical shell ring, the structural type is simpler, and the processing difficulty is smaller;
(2) The plane area formed by the top plate of the transition section structure can be used as an arrangement platform and a maintenance platform of equipment of a fan manufacturer, the space of the equipment platform is relatively large, and the space utilization rate is high;
(3) Lightening holes formed by the internal supporting plate and the internal reinforcing ring not only provide an internal welding operation space channel, but also reduce the total weight of the foundation;
(4) The difficult problem that can't weld in the enclosure space that is formed by web, roof, bottom plate and the vertical main steel pipe in center has effectively been solved to the setting of interim population, and but the web offers the cutting panel of interim manhole department and treats that the internal work is accomplished the normal position welding, saves raw and other materials, avoids the material extravagant.
The above-mentioned preferred embodiments, further illustrating the objects, technical solutions and advantages of the present invention, should be understood that the above-mentioned are only preferred embodiments of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. The utility model provides an offshore wind power jacket basis changeover portion structure which characterized in that: the array structure comprises a top plate, a bottom plate, central vertical main steel pipes and a plurality of groups of support columns, wherein the top plate, the bottom plate and the central vertical main steel pipes are arranged in central holes of the top plate and the bottom plate at intervals in parallel, the central vertical main steel pipes are uniformly arranged in the peripheral sides of the top plate and the bottom plate, a plurality of side web plates are arranged between the top plate and the bottom plate and positioned in the peripheral sides of the central vertical main steel pipes, an internal support plate is arranged between two adjacent side web plates, the first ends of the side web plates are tangent to the support columns, the second ends of the side web plates are intersected with the central vertical main steel pipe, two adjacent side web plates tangent to the same support column are symmetrical about an array surface, and the array surface is a surface where the central lines of the central vertical main steel pipe and the support columns are located; the inner supporting plate is provided with a lightening hole, the periphery of the lightening hole is provided with an inner reinforcing ring formed by a steel pipe ring, and a side web plate is provided with a temporary manhole; the upper surface of the top plate is provided with a platform plate, and the periphery of the platform plate is provided with a railing; three groups of supporting columns are arranged on the periphery sides of the top plate and the bottom plate, the top plate is composed of a first top plate and three aligned second top plates, the bottom plate is composed of a first bottom plate and three aligned second bottom plates, the first top plate and the first bottom plate are both in a 6-edge shape, the second top plate and the second bottom plate are in an acute triangle shape with a fillet, the supporting columns are close to the fillets, the supporting columns and the fillets are concentric, the three second top plates are respectively connected with three edges of the first top plate, and the three second bottom plates are respectively connected with three edges of the first bottom plate; the side webs comprise a first side web and a second side web which are mutually welded side by side to form a straight plate, the first side web is erected between the first top plate and the first bottom plate, and the second side web is erected between the second top plate and the second bottom plate; four groups of supporting columns are arranged on the periphery sides of the top plate and the bottom plate, the top plate is composed of a first top plate and four aligned second top plates, the bottom plate is composed of a first bottom plate and four aligned second bottom plates, the first top plate and the first bottom plate are both in an 8-edge shape, the second top plate and the second bottom plate are in an acute triangle shape with a fillet, the supporting columns are close to the fillets, the supporting columns and the fillets are concentric, the four second top plates are respectively connected with four edges of the first top plate, and the four second bottom plates are respectively connected with four edges of the first bottom plate; the side webs comprise a first side web and a second side web which are mutually welded side by side to form a straight plate, the first side web is erected between the first top plate and the first bottom plate, and the second side web is erected between the second top plate and the second bottom plate; the upper end of the central vertical main steel pipe is provided with a flange plate, a plurality of groups of outer reinforcing rib plates are arranged on the upper surface of the top plate and positioned on the outer peripheral wall of the central vertical main steel pipe at intervals, each outer reinforcing rib plate comprises a section of arc-shaped slat and a plurality of gusset plates connected between the arc-shaped slat and the upper surface of the top plate, the arc-shaped slats and the upper surface of the top plate are arranged in parallel at intervals, the inner periphery of each arc-shaped slat is attached to the outer peripheral wall of the central vertical main steel pipe, each gusset plate is polygonal, one side of each gusset plate is connected to the lower surface of the corresponding arc-shaped slat, the other side of each gusset plate is connected to the outer peripheral wall of the central vertical main steel pipe, and the other side of each gusset plate is connected to the upper surface of the top plate; the inner reinforcing rib plate is characterized in that a circle of inner reinforcing rib plates are arranged on the inner peripheral wall of the central vertical main steel pipe, each inner reinforcing rib plate comprises two circular ring pieces arranged in parallel at intervals and a plurality of rib pieces arranged between the two circular ring pieces at intervals, each rib piece is polygonal, two edges of each rib piece are connected to the upper surface and the lower surface of the two circular ring pieces respectively, and one edge of each rib piece is connected to the outer peripheral wall of the central vertical main steel pipe.
2. A manufacturing method of a foundation transition section structure of an offshore wind power jacket is characterized by comprising the following steps: the offshore wind power jacket foundation transition section structure comprises a top plate, a bottom plate, a central vertical main steel pipe and a plurality of groups of support columns, wherein the top plate, the bottom plate and the central vertical main steel pipe are arranged in parallel at intervals, the central vertical main steel pipe is fixedly arranged in central holes of the top plate and the bottom plate, the support columns are uniformly arranged on the peripheral sides of the top plate and the bottom plate, a plurality of side web plates are arranged between the top plate and the bottom plate and positioned on the peripheral sides of the central vertical main steel pipe, an internal support plate is arranged between every two adjacent side web plates, the first ends of the side web plates are tangent to the support columns, the second ends of the side web plates are intersected with the central vertical main steel pipe, two adjacent side web plates tangent to the same support column are symmetrical about an array surface, and the array surface is the surface where the central lines of the central vertical main steel pipe and the support columns are located; three groups of supporting columns are arranged on the periphery sides of the top plate and the bottom plate, the top plate is composed of a first top plate and three aligned second top plates, the bottom plate is composed of a first bottom plate and three aligned second bottom plates, the first top plate and the first bottom plate are both in a 6-edge shape, the second top plate and the second bottom plate are in an acute triangle shape with a fillet, the supporting columns are close to the fillets, the supporting columns and the fillets are concentric, the three second top plates are respectively connected with three edges of the first top plate, and the three second bottom plates are respectively connected with three edges of the first bottom plate; the side webs comprise a first side web and a second side web which are mutually welded side by side to form a straight plate, the first side web is erected between the first top plate and the first bottom plate, and the second side web is erected between the second top plate and the second bottom plate; when the first module and the second module are manufactured, the first module comprises a first top plate, a first bottom plate, a central vertical main steel pipe and a first side web plate which is welded between the first top plate and the first bottom plate and is positioned on the peripheral wall of the central vertical main steel pipe; the second block comprises a second top plate, a second bottom plate, a support column, a second side web and an inner support plate, wherein the second side web and the inner support plate are welded between the second top plate and the second bottom plate; when a first block and a second block are prefabricated, welding the components of the first block and the second block into the first block and the second block, wherein the first block is provided with one group, the second block is provided with two groups, the second blocks are uniformly distributed on the periphery of the first block, welding personnel enters the interior of the first block and the second block through a temporary manhole formed in a side web plate, the seam of a first top plate and a second top plate is welded, the seam of a first bottom plate and a second bottom plate is welded, and the seam of a first side web plate and a second side web plate is welded; welding seams of the central vertical main steel pipe and the first side web plate, the first top plate and the second top plate; finally, after the welding personnel come out of the temporary manhole, welding and sealing the temporary manhole by using an iron plate; the upper end of the central vertical main steel pipe is provided with a flange plate, a plurality of groups of outer reinforcing rib plates are arranged on the upper surface of the top plate and positioned on the outer peripheral wall of the central vertical main steel pipe at intervals, each outer reinforcing rib plate comprises a section of arc-shaped slat and a plurality of gusset plates connected between the arc-shaped slat and the upper surface of the top plate, the arc-shaped slats and the upper surface of the top plate are arranged in parallel at intervals, the inner periphery of each arc-shaped slat is attached to the outer peripheral wall of the central vertical main steel pipe, each gusset plate is polygonal, one side of each gusset plate is connected to the lower surface of the corresponding arc-shaped slat, the other side of each gusset plate is connected to the outer peripheral wall of the central vertical main steel pipe, and the other side of each gusset plate is connected to the upper surface of the top plate; when the outer reinforcing rib plates are welded, a plurality of rib plates are welded on the outer peripheral wall of the central vertical main steel pipe and the upper surface of the top plate, and then arc-shaped strips are welded on the rib plates; the inner circumferential wall of the central vertical main steel pipe is provided with a circle of inner reinforcing rib plates, each inner reinforcing rib plate comprises two circular ring pieces arranged in parallel at intervals and a plurality of rib pieces arranged between the two circular ring pieces at intervals, each rib piece is polygonal, two sides of each rib piece are respectively connected to the upper surface and the lower surface of each circular ring piece, and one side of each rib piece is connected to the outer circumferential wall of the central vertical main steel pipe; during the preparation, weld the ring piece that two parallel intervals set up on the internal perisporium of the vertical main steel pipe in center earlier, a plurality of muscle pieces of interval welding between two ring pieces.
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| CN113882422A (en) | 2022-01-04 |
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