CN220151471U - Steel tube concrete tower section of thick bamboo connection structure suitable for jacket fan foundation - Google Patents
Steel tube concrete tower section of thick bamboo connection structure suitable for jacket fan foundation Download PDFInfo
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- CN220151471U CN220151471U CN202320180811.9U CN202320180811U CN220151471U CN 220151471 U CN220151471 U CN 220151471U CN 202320180811 U CN202320180811 U CN 202320180811U CN 220151471 U CN220151471 U CN 220151471U
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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
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- 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
本实用新型提供了一种适用于导管架风机基础的钢管混凝土塔筒连接结构，用于使所述塔筒通过所述连接结构安装在导管架风机基础上；所述连接结构包括底平台、多组支撑腿和顶部异型法兰盘。本实用新型能够在上端与预应力钢管混凝土柱加强结构的塔筒配合，下端与导管架风机基础配合形成整体，使得上部的预应力钢管混凝土柱加强结构所提供的加强作用能够被底部可靠的连接支撑，有效传递荷载，使得预应力钢管混凝土柱加强结构的塔筒能够有效运用，降低塔筒的建设成本与施工周期。
The utility model provides a steel tube concrete tower connection structure suitable for the foundation of the jacket fan, which is used to install the tower on the foundation of the jacket fan through the connection structure; the connection structure includes a bottom platform, multiple Set support legs and top shaped flange. The utility model can cooperate with the tower of the prestressed steel tube concrete column reinforcement structure at the upper end, and the lower end can cooperate with the jacket fan foundation to form a whole, so that the reinforcement provided by the upper prestressed steel tube concrete column reinforcement structure can be reliably connected by the bottom Support and effectively transfer the load, so that the tower of the prestressed steel tube concrete column reinforced structure can be effectively used, reducing the construction cost and construction period of the tower.
Description
Technical Field
The utility model relates to the technical field of wind power generation, in particular to a steel tube concrete tower tube connecting structure suitable for a jacket fan foundation.
Background
With the continuous development of offshore wind power in China, offshore wind farms are gradually depleted, and deep-sea wind power resources become focus points for future offshore wind power development.
The common offshore wind turbine foundation types comprise a single pile foundation, a high pile cap foundation, a jacket foundation and the like, wherein the jacket foundation is a truss foundation formed by steel pipe piles (or suction barrels) and a jacket structure, and the offshore wind turbine foundation type has the advantages of large size, good stress condition, strong foundation stability and the like, and the offshore construction time is reduced in a land construction and assembly mode, so that the offshore construction cost is effectively controlled.
On the other hand, in order to better utilize wind power generation resources in deep open sea, the height of wind power towers is increasingly increased, and the impeller diameter and single-machine capacity of generator sets are also drastically increased. Research shows that for the traditional steel tower, after the height exceeds a certain value, the stress is greatly improved along with the increase of the height, so that the steel consumption of the tower is greatly increased, and the economical efficiency of the whole scheme is greatly reduced; meanwhile, as the height of the tower barrel is increased, the self-vibration frequency of the tower is gradually reduced, and the problems of frequency crossing, vortex-induced resonance and the like are easy to occur, so that higher requirements are put on the safety of the tower.
Because the concrete has the characteristics of high rigidity, strong plasticity and low cost, the tower barrel with the prestressed steel pipe concrete column reinforcing structure can be formed by introducing the concrete and the thin-wall steel pipe, and the cost of the tower barrel is reduced as much as possible on the premise of ensuring the safety and the reliability of the tower barrel. However, for such towers, there is a lack of effective connection of the tower to the jacket fan foundation to provide reliable connection transition and support for the prestressed concrete-filled steel tubular column reinforcement tower.
Disclosure of Invention
In view of the above-mentioned problems in the background art, the present utility model aims to provide a concrete filled steel tubular tower connection structure suitable for a jacket fan foundation, so as to provide a transition connection structure with the jacket fan foundation for a tower containing a prestressed concrete filled steel tubular column reinforcement structure, and ensure reliable connection transition and support. Therefore, the utility model is realized by the following technical scheme:
a steel tube concrete tower cylinder connecting structure suitable for a jacket fan foundation, which is used for enabling the tower cylinder to be arranged on the jacket fan foundation through the connecting structure; the method is characterized in that: the connecting structure comprises a bottom platform, a plurality of groups of supporting legs and a top special-shaped flange plate;
the special-shaped flange plate comprises a circular ring flange plate and a plurality of inner flange plates distributed along the circumferential direction in the inner ring of the circular ring flange plate; the ring flange is provided with a circle of bolt holes, and the periphery of the inner flange, which is not connected with the ring flange, is also provided with bolt connecting holes; the circular ring flange is used for being matched and connected with a circular ring flange on a bottom end connecting flange of the steel tube concrete tower, and the inner flange is used for being matched and connected with an accessory steel tube sealing flange in the bottom connecting flange; the upper ends of the supporting legs of each group are distributed along the circumferential direction of the inner flange plates, the number of the supporting legs is matched with that of the inner flange plates, and the supporting legs are correspondingly connected one by one;
the bottom platform is connected with the main leg of the jacket fan foundation, the bottom end of each group of supporting legs is connected with the bottom platform, and the connection position of the bottom platform is positioned above the connection position of the bottom platform and the main leg of the jacket fan foundation.
On the basis of adopting the technical scheme, the utility model can also adopt the following further technical schemes or use the further technical schemes in combination:
the connecting structure further comprises a torsion-resistant support frame, and the torsion-resistant support frame is arranged at the connecting end part of each support leg.
The bottom platform is a polygonal platform, the bottom end of each group of supporting legs is connected to the corner of the polygonal platform, and the corner of the polygonal platform is connected with the main leg of the jacket fan foundation.
The top surface on the position that end platform and jacket fan foundation's main leg are connected sets up the mound of strengthening, and the bottom of same group supporting leg all is connected to same mound of strengthening.
The bottom platform is regular polygon, can triangle-shaped, square etc. the shape suits with the quantity and the arrangement position of the main leg of jacket basis, and the corner is made the chamfer and is handled, can set up the railing around the top surface, and the bottom surface sets up the bottom plate stiffening beam around down, and the middle part sets up extra bottom plate stiffening beam according to the platform bearing needs. The cross section of the bottom plate reinforcing beam comprises, but is not limited to, I-shaped, rectangular, L-shaped, T-shaped and the like, and the bottom plate reinforcing beam is connected with the bottom platform of the connecting structure in a welding or bolt mode.
The bottom surface of the bottom platform of the connecting structure is connected with the main legs of the jacket foundation below in a welding mode, and the connecting part is positioned at the round angle position of the bottom platform.
Each group of supporting legs form triangular pyramid supports with the top ends obliquely downward, the number of the triangular pyramid supports is equal to that of main legs of a jacket fan foundation, at least three groups of the triangular pyramid supports are provided, each group of the triangular pyramid supports comprises 2 supporting legs, and the length of each supporting leg is equal to the elevation angle; the inner flanges are arranged in groups, each group is provided with two inner flanges, the arrangement positions of the inner flanges along the circumferential direction meet the requirement that the length and the elevation angle of each supporting leg are the same. Preferably, the upper ends of the support legs are sequentially and uniformly distributed in the circumferential direction.
The lower ends of the 2 supporting legs supported by each group of triangular pyramid are intersected at a point, the upper parts of the supporting legs are separated and respectively welded with the 2 inner flanges of the same group, the supporting legs are matched with the geometric orientation of a steel tube concrete column in a tower cylinder, the bottom ends of the supporting legs of each group are connected with reinforcing piers to fix the 2 supporting legs of the group together, the supporting legs are used for improving the overall rigidity and the torsion resistance of the triangular pyramid support, and the lower surfaces of the reinforcing piers are connected with a bottom platform of a connecting structure in a welding mode.
The upper end of the triangular cone support is connected with the inner flange plate by welding or bolts, the lower end of the triangular cone support is connected with the reinforcing pier by welding, and the middle of the triangular cone support is connected with the torsion-resistant support frame by welding. Further, the anti-torsion support is arranged in the middle of the triangular pyramid support, the support nodes are reinforced by an additional diagonal bracing mode, and the anti-torsion support steel pipes are connected by adopting a welding mode.
The number of the internal auxiliary steel pipe sealing flanges and the number of the internal flanges of the connecting flange at the bottom end of the steel pipe concrete tower can be divided by the number of the main legs of the jacket to form a group, the number of each group is two, and the number of the supporting legs in each group is two, so that the length and the elevation angle of each supporting leg in each group are the same.
Further preferably, the triangular pyramid support, the bottom platform and the torsion-resistant support are all made of steel.
By adopting the technical scheme of the utility model, the upper end of the tower barrel is matched with the tower barrel of the prestressed concrete filled steel tube column reinforcing structure, and the lower end of the tower barrel is matched with the jacket fan foundation to form a whole, so that the reinforcing effect provided by the prestressed concrete filled steel tube column reinforcing structure at the upper part can be reliably connected and supported by the bottom, the load is effectively transferred, the tower barrel of the prestressed concrete filled steel tube column reinforcing structure can be effectively applied, and the construction cost of the tower barrel is reduced.
Drawings
FIG. 1 is a schematic diagram of a tower of an array type concrete filled steel tube reinforcing structure in transitional connection with a conventional jacket foundation through a connecting structure of the utility model;
FIG. 2 is a schematic diagram of an embodiment of the connection structure of the present utility model;
FIG. 3 is a schematic view of a top portion of a bottom platform of an embodiment of a connection structure of the present utility model;
FIG. 4 is a schematic view of a lower bottom portion of a bottom platform of an embodiment of the connection structure of the present utility model;
FIG. 5 is a schematic view of a top attachment flange of an embodiment of the attachment structure of the present utility model;
FIG. 6 is a schematic view of a torsional support in an embodiment of the connection structure of the present utility model; wherein the steel tower drum wall is truncated to reveal its internal tower drum structure;
FIG. 7 is a schematic view of a tower comprising an array of concrete filled steel tube reinforcing structures in which the outer wall of the tower is cut away to reveal its internal structure, in accordance with an embodiment of the present utility model;
fig. 8 is a schematic view of a bottom end profiled flange plate of a tower comprising an array type concrete filled steel tube reinforcing structure in an embodiment of the utility model.
Detailed Description
In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
As shown in fig. 1, there is shown an embodiment in which a tower 2 of an array type concrete filled steel tube reinforcing structure is mounted on a conventional jacket foundation 3 by means of a connection structure 1 according to the present utility model. Wherein, the tower section 2 is connected inside by a plurality of tower section joints in turn through bolts by using the connecting flange plate 25. The tower section comprises a tower cylinder wall 21 and steel pipes 22 which are arranged in an array mode along the circumferential direction and are positioned in the tower cylinder wall 21, the steel pipes 22 are kept at a certain distance from the tower cylinder wall 21, the middle is connected by using vertical reinforcing rib plates 23, one or more horizontal reinforcing rib plates 24 (which can be directly welded and connected without a distance) can be arranged at intervals in the length direction of the vertical reinforcing rib plates, the vertical reinforcing rib plates 23 and the horizontal reinforcing rib plates 24 are connected with the steel tower cylinder wall 21 and the steel pipes 22 in a welding mode, and two ends of the vertical reinforcing rib plates 23 are respectively welded on connecting flange plates 14 at two ends of the steel tower cylinder 21. The steel tube concrete tower is characterized in that the steel tube concrete tower is of a multi-section type, the top and the bottom of each section are provided with a connecting flange 25, each connecting flange 25 comprises a circular ring flange 251 and an inner auxiliary steel tube sealing flange 252 arranged along the circumferential direction, the circular ring flange 251 is provided with a circle of bolt holes, the inner auxiliary steel tube sealing flange 252 is provided with bolt holes at the edge which is not connected with the circular ring flange 251, and the inner auxiliary steel tube sealing flange 252 is also provided with pouring holes and concrete pressurizing pouring holes. The steel pipe concrete column is formed by pouring prestressed concrete in a space formed by the steel pipe 22 and the inner auxiliary steel pipe sealing flanges 252 at the upper and lower ends, and the steel pipe concrete column is formed by the above structure. In order to facilitate the grouping connection, the adaptation and subsequent up-down connection with the connection structure and the effective transmission of the holding force, all the concrete filled steel tube columns and the inner auxiliary steel tube sealing flanges 252 are preferably uniformly distributed along the inner circumference of the steel tower cylinder so as to correspond to the top end positions of the supporting legs supported by the grouping triangular pyramid.
The utility model provides a steel tube concrete tower connecting structure suitable for a jacket fan foundation, which comprises a bottom platform 11, a plurality of groups of supporting legs 12 and a top special-shaped flange plate 14.
The special-shaped flange 14 comprises a circular flange 141 and a plurality of inner flanges 142 distributed along the circumferential direction in the inner ring of the circular flange; the ring flange is provided with a circle of bolt holes 143, and the periphery of the inner flange 142 which is not connected with the ring flange 141 is also provided with bolt connecting holes 143; the circular ring flange 141 is in fit connection with a circular ring flange 251 on a bottom end connecting flange of the steel tube concrete tower, and the inner flange 142 is in fit connection with an auxiliary steel tube sealing flange 252 in the bottom connecting flange; the number of the support legs 12 is matched with the number of the inner flanges 142, and each inner flange 142 is provided with a one-to-one corresponding welding connection of the support legs 12. The number of the supporting legs in each group is preferably two, the number of the inner auxiliary steel pipe sealing flange 252 and the inner flange 142 of the connecting flange at the bottom end of the steel pipe concrete tower is preferably divided by the number of the main legs 31 of the jacket, and the number of each group is preferably two, so that the length of each supporting leg 12 in each group of supporting legs 12 is the same as the elevation angle.
The bottom platform 11 is connected with the main leg 31 of the jacket fan foundation, the bottom end of each group of supporting legs 12 is connected with the bottom platform 11, and the connection position of the bottom platform 11 is positioned above the connection position of the bottom platform 11 and the main leg 31 of the jacket fan foundation.
The connecting structure further comprises a torsion-resistant supporting frame 13, and the torsion-resistant supporting frame 13 is provided with end parts connected with the supporting legs.
Each group of supporting legs preferably form triangular pyramid supports with the top ends obliquely downward, the number of the triangular pyramid supports is equal to that of main legs of a jacket fan foundation, four groups of the triangular pyramid supports are adopted in the embodiment, each group of triangular pyramid supports comprises 2 supporting legs 12, and the length of each supporting leg 12 is equal to the elevation angle; the inner flanges 142 are arranged in groups, each group has two inner flanges 142, and the positions of the inner flanges along the circumferential direction meet the requirement that the length and the elevation angle of each support leg are the same.
The lower ends of the 2 supporting legs 12 of each group of triangular pyramid support are intersected at a point, the upper parts of the supporting legs are separated and respectively welded with the 2 inner flanges of the same group, the bottom ends of the supporting legs of each group are connected with reinforcing piers 115 to fix the 2 supporting legs of the group together, the supporting legs are used for improving the overall rigidity and the torsion resistance of the triangular pyramid support, and the lower surfaces of the reinforcing piers 115 are connected with the bottom platform 11 in a welding mode.
The triangular cone support upper end and the inner flange plate are preferably connected in a welding mode, the lower end and the reinforcing pier 115 are connected in a welding mode, the middle part and the torsion-resistant support frame 13 are connected in a welding mode, an integral body is formed, and the integral compression, bending and torsion capacity of the connecting structure 1 is improved.
In this embodiment, the torsion-resistant supporting frame 13 is formed by welding 6 supports, wherein the peripheral 4 supports are rectangular with crossed ends, and 8 connecting ends are generated and directly connected to the supporting legs 12 of the triangular pyramid supports, and the central 2 supports are connected to the crossing points of the peripheral 4 supports. The whole torsion-resistant supporting frame 13 is welded, and the torsion-resistant supporting frame and the triangular pyramid support are fixed in a welding mode.
The bottom platform 11 includes a floor 111, guardrails 112, reinforcement piers 115, and floor reinforcement beams 114. The bottom platform 11 is a polygonal platform with a shape corresponding to the number and arrangement positions of the main legs of the jacket foundation, and in this embodiment, is a quadrangle, and corners are rounded. 4 reinforcing piers 115 are provided at four corners of the top surface of the base plate 111 for improving the joint performance when connected to the triangular pyramid support 12 while guardrails 112 are provided at the four sides thereof. The bottom surface of the bottom plate 11 is provided with bottom plate reinforcing beams 114 around, which in this embodiment adopts an i-shaped cross section, and in other embodiments may adopt a plurality of different types such as a T-shaped cross section, a square cross section, an L-shaped cross section, etc. The middle part of the bottom plate 111 may be provided with bottom plate reinforcing beams 114 in a diagonal line according to the load-bearing capacity requirement to further improve the integrity of the connection assembly 1. The base plate 111 and the reinforcement piers 115 are connected by welding, and can be fixed to the base plate reinforcement beam 114 by welding or bolting.
For the steel pipe concrete column, during construction, the concrete pouring hole and the concrete pressurizing hole of the bottom end connecting flange plate 25 are plugged, high-strength concrete is poured into the steel pipe through the concrete pouring hole on the upper end connecting flange plate 25, the concrete is enabled to generate a force expanding along the circumferential direction in a pressurizing mode through the concrete pressurizing pouring hole, the extrusion force and the friction force between the concrete and the steel pipe are improved, and the overall bearing capacity of the steel pipe concrete column is further improved.
The tower drum 2 is in a modularized design, and can be combined with tower drum sections of different numbers according to engineering requirements and fixed in a bolt connection mode. Wherein, the tower shell ring bottom surface of the bottommost section additionally sets up a steel sheet and seals it, reduces the influence of external environment when satisfying inside electrical equipment and put the demand. Meanwhile, the tower shell ring can be manufactured into a vertical equal-diameter or variable-diameter type according to the requirement, and the requirements of bearing capacity of the tower at different heights and the requirement of a butt joint interface with the top wind power cabin are met.
Compared with the traditional pure steel tower cylinder type, the mode of combining the steel tube concrete column and the steel tower cylinder wall in the embodiment has the advantages that the rigidity is greatly improved, so that the rigidity and the self-vibration frequency of the whole tower can be effectively improved, the wind speed locking interval of vortex-induced resonance is integrally lifted (namely, the wind speed of a flow field is more difficult to fall into the locking interval), the probability of vortex-induced resonance of the tower in a complex wind environment is effectively reduced, and the safety of the tower is greatly improved. On the other hand, because the high-pressure concrete exists in the steel tube concrete column, the outer wall steel tube of the steel tube concrete column is always in an outwards expanded state, namely, the hoop tensile stress exists, the possibility of buckling instability of the steel tube under the action of external load can be effectively reduced, and the safety of the tower is further improved. The connecting structure 1 of the utility model successfully connects the tower 2 to the conduit frame type fan foundation 3 effectively and reliably, and when the fan operates, the load of the fan can be transmitted to the triangular pyramid support of the connecting component 2 through the steel tube concrete column in the tower 2 and then transmitted to the conduit frame foundation 3 through the support. The load in the tower drum 2 is transmitted through the steel tube concrete column, the outer wall of the tower drum is not directly stressed, the thickness of the wall of the tower drum can be reduced, and the steel consumption is effectively reduced.
The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present utility model. It will be apparent to those skilled in the art that various modifications can be readily made to these examples and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present utility model is not limited to the embodiments described herein, and those skilled in the art, based on the present disclosure, should make improvements and modifications within the scope of the present utility model.
Claims (9)
1. A steel tube concrete tower cylinder connecting structure suitable for a jacket fan foundation, which is used for enabling the tower cylinder to be arranged on the jacket fan foundation through the connecting structure; the method is characterized in that: the connecting structure comprises a bottom platform, a plurality of groups of supporting legs and a top special-shaped flange plate;
the special-shaped flange plate comprises a circular ring flange plate and a plurality of inner flange plates distributed along the circumferential direction in the inner ring of the circular ring flange plate; the ring flange is provided with a circle of bolt holes, and the periphery of the inner flange, which is not connected with the ring flange, is also provided with bolt connecting holes; the annular flange is used for being matched and connected with an annular flange on a bottom end connecting flange of the steel tube concrete tower, and the inner flange is used for being matched and connected with an accessory steel tube sealing flange in the bottom end connecting flange; the upper ends of the supporting legs of each group are distributed along the circumferential direction of the inner flange plates, the number of the supporting legs is matched with that of the inner flange plates, and the supporting legs are correspondingly connected one by one;
the bottom platform is connected with the main leg of the jacket fan foundation, the bottom end of each group of supporting legs is connected with the bottom platform, and the connection position of the bottom platform is positioned above the connection position of the bottom platform and the main leg of the jacket fan foundation.
2. The concrete filled steel tube tower tube connecting structure suitable for the jacket fan foundation according to claim 1, wherein: the connecting structure further comprises an anti-torsion supporting frame, and the anti-torsion supporting frame is provided with end parts connected with the supporting legs.
3. The concrete filled steel tube tower tube connecting structure suitable for the jacket fan foundation according to claim 1, wherein: the bottom platform is a polygonal platform, the bottom end of each group of supporting legs is connected to the corner of the polygonal platform, and the corner of the polygonal platform is connected with the main leg of the jacket fan foundation.
4. The concrete filled steel tube tower tube connecting structure suitable for the jacket fan foundation according to claim 1, wherein: the top surface on the position that end platform and jacket fan foundation's main leg are connected sets up the mound of strengthening, and the bottom of same group supporting leg all is connected to same mound of strengthening.
5. The concrete filled steel tube tower tube connecting structure suitable for the jacket fan foundation according to claim 1, wherein: the bottom platform is regular polygon, the shape is adapted to the number and arrangement positions of main legs of the jacket foundation, corners are rounded, bottom plate reinforcing beams are arranged on the periphery of the lower bottom surface, and the middle part is provided with additional bottom plate reinforcing beams according to the bearing requirement of the platform.
6. The concrete filled steel tube tower tube connecting structure suitable for the jacket fan foundation according to claim 1, wherein: each group of supporting legs form triangular pyramid supports with the top ends obliquely downward, the number of the triangular pyramid supports is equal to that of main legs of a jacket fan foundation, each group of triangular pyramid supports comprises 2 supporting legs, and the length of each supporting leg is equal to the elevation angle; the inner flanges are arranged in groups, each group is provided with two inner flanges, the arrangement positions of the inner flanges along the circumferential direction meet the requirement that the length and the elevation angle of each supporting leg are the same.
7. The concrete filled steel tube tower tube connecting structure suitable for the jacket fan foundation according to claim 6, wherein: the lower ends of the 2 supporting legs supported by each group of triangular cones are intersected at a point, the upper parts of the supporting legs are separated and respectively welded with the 2 inner flanges of the same group, the bottom ends of the supporting legs of each group are connected with reinforcing piers to fix the 2 supporting legs of the group together, the supporting legs are used for improving the overall rigidity and the torsion resistance of the triangular cones, and the lower surfaces of the reinforcing piers are connected with a bottom platform of a connecting structure in a welding mode.
8. The concrete filled steel tube tower tube connecting structure suitable for the jacket fan foundation according to claim 6, wherein: the upper end of the triangular cone support is connected with the inner flange plate by welding or bolts, the lower end of the triangular cone support is connected with the reinforcing pier by welding, and the middle of the triangular cone support is connected with the torsion-resistant support frame by welding.
9. The concrete filled steel tube tower tube connecting structure suitable for the jacket fan foundation according to claim 1, wherein: the number of the internal auxiliary steel pipe sealing flanges and the number of the internal flanges of the connecting flange at the bottom end of the steel pipe concrete tower can be divided by the number of the main legs of the jacket to form a group, the number of each group is two, and the number of the supporting legs in each group is two, so that the length and the elevation angle of each supporting leg in each group are the same.
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| CN202320180811.9U CN220151471U (en) | 2023-01-19 | 2023-01-19 | Steel tube concrete tower section of thick bamboo connection structure suitable for jacket fan foundation |
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| CN202320180811.9U CN220151471U (en) | 2023-01-19 | 2023-01-19 | Steel tube concrete tower section of thick bamboo connection structure suitable for jacket fan foundation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116971931A (en) * | 2023-01-19 | 2023-10-31 | 中国电建集团华东勘测设计研究院有限公司 | A concrete-filled steel tube tower connection structure suitable for jacket fan foundations |
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2023
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116971931A (en) * | 2023-01-19 | 2023-10-31 | 中国电建集团华东勘测设计研究院有限公司 | A concrete-filled steel tube tower connection structure suitable for jacket fan foundations |
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