CN216108589U

CN216108589U - Node structure of single-column-composite-cylinder connecting device and single column

Info

Publication number: CN216108589U
Application number: CN202120012371.7U
Authority: CN
Inventors: 蔡小莹; 陈立; 张权; 校建东; 王李吉; 王正昱
Original assignee: Shanghai Investigation Design and Research Institute Co Ltd SIDRI
Current assignee: Shanghai Investigation Design and Research Institute Co Ltd SIDRI
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2022-03-22
Anticipated expiration: 2031-01-05

Abstract

The utility model provides a node structure of a single-column-composite-cylinder connecting device and a single column, which comprises the single column and the single-column-composite-cylinder connecting device, wherein the single-column-composite-cylinder connecting device comprises a connecting main board and a plurality of webs arranged below the connecting main board, the connecting main board is provided with through holes, and the webs are arranged around the through holes; a plurality of upper stiffening plates arranged around the through holes are arranged above the connecting main board; lower stiffening plates which correspond to the upper stiffening plates one by one are arranged below the connecting main board; the lower stiffening plates and the web plates are alternately arranged. The device of the utility model further connects the connecting main board and the single column by arranging the upper stiffening plate and the lower stiffening plate, increases the connecting area and improves the connecting rigidity, and because the upper stiffening plate and the lower stiffening plate are arranged around the through hole, the multidirectional connection of the connecting main board and the single column can be realized, the stable connection of the connecting main board and the single column is ensured, the torsion resistance and the bending resistance of the joint of the single column and the connecting main board are improved, the fatigue failure is avoided, and the effective transmission of the load is ensured.

Description

Node structure of single-column-composite-cylinder connecting device and single column

Technical Field

The utility model belongs to the technical field of connecting structures, and particularly relates to a node structure of a single-column-composite-cylinder connecting device and a single column.

Background

Offshore wind power is a stable and effective new energy form and is actively developed in recent years. According to the requirements of the national energy agency, the national complement of offshore wind power is cancelled at the end of 2021 year, and the offshore wind power formally enters the era of 'flat price surfing', so that each party is required to reform and innovate offshore wind power engineering. The single-column-composite cylinder foundation adopts an all-steel structure, is light in weight, is completely welded on land, and has few offshore construction procedures; the construction is sunk in place by utilizing the water pressure difference, the construction time is short, and the construction efficiency is high; the foundation has shallow soil penetration depth and good adaptability to the foundation, can avoid rock embedding, and the single-column-composite-cylinder foundation is used as a novel offshore wind turbine foundation, has the advantages of high construction efficiency, economic manufacturing cost and the like, and has huge popularization and application prospects in offshore wind power plants. The single-column-composite-cylinder foundation consists of a single column, a single-column-composite-cylinder connecting device and a composite cylinder, wherein the single column can bear environmental loads such as fan loads, wave current loads and the like, and the single column slowly and effectively transfers the loads to the composite cylinder through the single-column-composite-cylinder connecting device, so that the connecting part of the single-column-composite-cylinder connecting device and the single column is a key point for ensuring the effective transfer of the loads.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, the present invention provides a joint structure of a single-column-composite-cylinder connecting device and a single column, which ensures the stable connection of the single-column-composite-cylinder connecting device and the single column, realizes the effective transmission of load, avoids the failure of the single-column-composite-cylinder connecting device due to stress concentration, and prolongs the service life of the single-column-composite-cylinder connecting device.

In order to achieve the above and other related objects, the present invention provides a node structure of a single-column-composite-cylinder connection device and a single column, including a single column and a single-column-composite-cylinder connection device, where the single-column-composite-cylinder connection device includes a connection main board and a plurality of webs arranged below the connection main board, a through hole adapted to an outer diameter of the single column is formed in the connection main board, the single column is welded and fixed in the through hole, the plurality of webs are arranged around the through hole, a top surface of the web is welded to a bottom surface of the connection main board, and an inner side surface of the web is welded to the single column; a plurality of upper stiffening plates are arranged above the connecting main plate, the upper stiffening plates are arranged around the through holes, the bottom surfaces of the upper stiffening plates are attached to the top surface of the connecting main plate in a welding mode, and the inner side surfaces of the upper stiffening plates are attached to the single columns in a welding mode; lower stiffening plates which are in one-to-one correspondence with the upper stiffening plates are arranged below the connecting main plate, the top surfaces of the lower stiffening plates are attached to and welded with the bottom surface of the connecting main plate, and the inner side surfaces of the lower stiffening plates are attached to and welded with the single columns; the lower stiffening plates and the web plates are alternately arranged. The device of the utility model further connects the connecting main board and the single column by arranging the upper stiffening plate and the lower stiffening plate, increases the connecting area, improves the connecting rigidity of the node, can realize multidirectional connection of the connecting main board and the single column because the upper stiffening plate and the lower stiffening plate are arranged around the through hole, ensures the stable connection of the connecting main board and the single column, improves the torsion resistance and the bending resistance of the joint of the single column and the connecting main board, avoids fatigue failure and ensures the effective transmission of load.

Preferably, the single column is a cylinder, the connecting main board is an annular board, and the single column is more uniformly and stably connected with the connecting main board.

Preferably, the outer side surface of the web plate is provided with an outer flange, and the outer flange is smoothly connected with the connecting main plate, so that stress concentration is reduced.

Preferably, the outer flange stiffening plates which connect the outer flange and the connecting main plate together are symmetrically arranged on two sides of the outer flange, so that the connecting area of the outer flange and the connecting main plate is further increased, and the connecting stability is ensured.

Preferably, an open slot is formed in the inner side face of the web plate, and an inner flange is arranged on the slot wall of the open slot, so that steel is saved, and the rigidity of the web plate is increased.

Preferably, the inner flange stiffening plates which connect the inner flange with the single column are symmetrically arranged on two sides of the inner flange, so that the connection area of the inner flange and the single column is further increased, and the connection stability is ensured.

Preferably, the symmetrical arrangement has the web reinforcing plate on the face of web both sides, keep away from on the web reinforcing plate corresponding the web the lateral surface with an outer flange lateral surface flushes, guarantees the intensity of web.

As described above, the node structure of the single-column-composite-tube connecting device and the single column according to the present invention has the following advantages:

according to the joint structure of the single-column-composite-cylinder connecting device and the single column, the upper stiffening plate, the lower stiffening plate and the outer flange stiffening plate are arranged, the inner flange stiffening plate increases the connecting area of the joint structure, the problem of stress concentration is reduced, and the stability of the connecting joint structure is ensured; the upper stiffening plate and the lower stiffening plate are arranged around the through hole of the connecting main board, so that multi-directional connection between the single column and the single column-composite cylinder connecting device can be realized, the connection uniformity of the single column and the single column-composite cylinder connecting device is ensured, and the failure of a node structure due to uneven stress is avoided.

Drawings

Fig. 1 is a front view showing a node structure of a single-column-composite-tube connecting device and a single column according to the present invention.

Fig. 2 is a top view of a node structure of a column-composite cylinder connecting device and a single column according to the present invention.

FIG. 3 is a schematic view of the single column and web of the present invention.

Fig. 4 is a schematic view of the connection main plate and the outer flange of the present invention.

FIG. 5 is a schematic view of the single column and inner flange of the present invention.

Fig. 6 is a schematic structural view of a stiffener plate according to the present invention.

Description of the reference numerals

The single column comprises a single column 1, a connecting main board 2, a web 3, a web reinforcing plate 31, an outer flange 4, an inner flange 5, an upper stiffening plate 6a, a lower stiffening plate 6b, an outer flange stiffening plate 6c, an inner flange stiffening plate 6d, a straight surface 61, an arc surface 62 and an overwelding hole 7.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1 to 6. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

As shown in fig. 1 to 6, the node structure of the single-column-composite-cylinder connecting device and the single column of the present invention includes a single column 1 and the single-column-composite-cylinder connecting device, the single-column-composite-cylinder connecting device includes a connecting main board 2 and a plurality of webs 3 disposed below the connecting main board 2, a through hole adapted to an outer diameter of the single column 1 is disposed on the connecting main board 2, the single column 1 is welded and fixed in the through hole, the plurality of webs 3 are disposed around the through hole, a top surface of the web 3 is welded to a bottom surface of the connecting main board 2, and an inner side surface of the web 3 is welded to the single column 1; a plurality of upper stiffening plates 6a are arranged above the connecting main plate 2, the upper stiffening plates 6a are arranged around the through holes, the bottom surfaces of the upper stiffening plates 6a are attached to and welded with the top surface of the connecting main plate 2, and the inner side surfaces of the upper stiffening plates 6a are attached to and welded with the single columns 1; lower stiffening plates 6b which are in one-to-one correspondence with the upper stiffening plates 6a are arranged below the connecting main board 2, the top surfaces of the lower stiffening plates 6b are attached to the bottom surface of the connecting main board 2 for welding, the inner side surfaces of the lower stiffening plates 6b are attached to the single columns 1 for welding, and the lower stiffening plates 6b and the webs 3 are alternately arranged.

In the present invention, a side surface close to the single column 1 is an inner side surface, and the single column 1 may have various shapes such as a cylindrical shape, a circular truncated cone shape, a prismatic shape, and the like, in this embodiment, the single column 1 is a hollow cylindrical shape, and in order to better fit and connect with the hollow cylindrical single column 1, the connection main board 1 is provided as an annular board, and the thickness of the annular board is about 1.5m, and the web 3, the upper stiffener 6a, and the lower stiffener 6b are all distributed in an annular array with the center of a circle of the annular board as the center.

As shown in fig. 1 and 3, an outer flange 4 is disposed on an outer side surface of the web 3, and the outer flange 4 is smoothly connected with the connecting main board 2, so as to avoid stress concentration.

As shown in fig. 2 and 4, outer flange stiffening plates 6c for connecting the outer flange 4 and the connecting main plate 2 are symmetrically disposed on both sides of the outer flange 4.

As shown in fig. 1 and 3, an open slot is formed in the inner side surface of the web 3, an inner flange 5 is arranged on the slot wall of the open slot, and the inner flange 5 is arc-shaped, so that stress concentration is avoided; in the present embodiment, the width of the inner flange 5 is equal to the width of the outer flange 4.

As shown in fig. 5, inner flange stiffening plates 6d for connecting the inner flange 5 and the single column 1 are symmetrically disposed at both sides of the inner flange 5.

As shown in fig. 6, the upper stiffener plate 6a, the lower stiffener plate 6b, the outer flange stiffener plate 6c, and the inner flange stiffener plate 6d have the same outer contour shape, and are similar to a right triangle, and each of the outer flange stiffener plates includes two flat surfaces 61 and an arc surface 62, the flat surfaces 61 are welding surfaces, and the arc surfaces 62 are non-welding surfaces, so that the problem of stress concentration is avoided.

As shown in fig. 1 and 3, web reinforcing plates 31 are symmetrically arranged on two side plate surfaces of the web 3, the web reinforcing plates 31 are perpendicular to the corresponding web 3, and an outer side surface of each web reinforcing plate 31, which is far away from the corresponding web 3, is flush with one side surface of the outer flange 4, so as to improve the rigidity of the web 3; in the present embodiment, the web reinforcing plate 31 includes a longitudinal reinforcing plate and a transverse reinforcing plate, and the longitudinal reinforcing plate is perpendicular to the transverse reinforcing plate.

In the utility model, the welding among all the components adopts penetration groove welding, the welding position is polished smoothly, and the distance between the welding position of the connecting main board 2 and the single column 1 and the single column circular seam is not less than 0.5 m; and the web 3, the upper stiffening plate 6a, the lower stiffening plate 6b and the single column 1 are welded while avoiding the single column circular seam, if the single column circular seam cannot be avoided, the butt joint positions of the web 3, the upper stiffening plate 6a, the lower stiffening plate 6b and the single column circular seam are provided with the over-welding holes 7 so as to ensure the welding quality.

When the device is assembled, the web plate 3 and the connecting main board 2 are welded and fixed to form a single-column-composite-cylinder connecting device, then the single column 1 is welded and fixed in the through hole on the connecting main board 2, the single-column-composite-cylinder connecting device and the single column 1 are connected and fixed, in order to guarantee the connecting strength of the single column and the single column, the top surface of the connecting main board 1 is provided with the upper stiffening plate 6a, the bottom surface of the connecting main board 1 is provided with the lower stiffening plate 6b, the two sides of the outer flange 4 are symmetrically provided with the outer flange stiffening plates 6c, and the two sides of the inner flange 5 are symmetrically provided with the inner flange stiffening plates 6d, so that the single-column-composite-cylinder connecting device and the single column 1 are further connected, the problems of stress concentration and fatigue damage are reduced, and the stability of the structure operation is guaranteed.

In summary, according to the joint structure of the single-column-composite-tube connecting device and the single column, the upper stiffening plate, the lower stiffening plate and the outer flange stiffening plate are arranged, and the inner flange stiffening plate increases the connecting area of the joint, so that the problem of stress concentration is reduced, and the stability of the structure of the connecting joint is ensured; the upper stiffening plate and the lower stiffening plate are arranged around the through hole of the connecting main board, so that multi-directional connection between the single column and the single column-composite cylinder connecting device can be realized, the connection uniformity of the single column and the single column-composite cylinder connecting device is ensured, and the failure of a node structure due to uneven stress is avoided.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A node structure of a single-column-composite-cylinder connecting device and a single column comprises the single column (1) and the single-column-composite-cylinder connecting device, wherein the single-column-composite-cylinder connecting device comprises a connecting main board (2) and a plurality of webs (3) arranged below the connecting main board (2), the connecting main board (2) is provided with a through hole matched with the outer diameter of the single column (1), the node structure is characterized in that the single column (1) is welded and fixed in the through hole, the webs (3) are arranged around the through hole, the top surfaces of the webs (3) are welded with the bottom surface of the connecting main board (2) in an attached mode, and the inner side surfaces of the webs (3) are welded with the single column (1) in an attached mode; a plurality of upper stiffening plates (6a) are arranged above the connecting main plate (2), the upper stiffening plates (6a) are arranged around the through holes, the bottom surfaces of the upper stiffening plates (6a) are attached to and welded with the top surface of the connecting main plate (2), and the inner side surfaces of the upper stiffening plates (6a) are attached to and welded with the single columns (1); lower stiffening plates (6b) which correspond to the upper stiffening plates (6a) one by one are arranged below the connecting main plate (2), the top surfaces of the lower stiffening plates (6b) are attached to and welded with the bottom surface of the connecting main plate (2), and the inner side surfaces of the lower stiffening plates (6b) are attached to and welded with the single columns (1); the lower stiffening plates (6b) and the web plates (3) are arranged alternately.

2. The node structure of a single-column-composite-cylinder connecting device and a single column according to claim 1, characterized in that the single column (1) is a cylinder, and the connecting main plate (2) is an annular plate.

3. The node structure of the single-column-composite-cylinder connecting device and the single column according to claim 1 or 2, characterized in that the outer side of the web (3) is provided with an outer flange (4), and the outer flange (4) is smoothly connected with the connecting main plate (2).

4. The joint construction of a single-column-composite-cylinder connecting device and a single column according to claim 3, characterized in that the outer flange (4) is symmetrically provided with outer flange stiffening plates (6c) at both sides for connecting the outer flange (4) and the connecting main plate (2).

5. The node structure of the single-column-composite-cylinder connecting device and the single column as claimed in claim 4, characterized in that the inner side of the web (3) is provided with an open slot, and the wall of the open slot is provided with an inner flange (5).

6. A node construction of a single-column-composite-cylinder connecting device and a single column according to claim 5, characterized in that the inner flanges (5) are bilaterally symmetrically provided with inner flange stiffening plates (6d) connecting the inner flanges (5) and the single column (1).

7. The node structure of the single-column-composite-cylinder connecting device and the single column according to claim 3, characterized in that web reinforcing plates (31) are symmetrically arranged on two side plate surfaces of the web (3), and the outer side surfaces of the web reinforcing plates (31) far away from the corresponding web (3) are flush with the outer side surfaces of the outer flanges (4).