CN114541462A - Offshore wind power foundation outer platform and manufacturing and mounting method - Google Patents

Abstract

The invention provides an offshore wind power foundation outer platform, which comprises an outer platform beam system structure fixed on an offshore wind power foundation, an outer platform railing arranged on the outer edge of the outer platform beam system structure, and a plurality of steel grating plates laid above the outer platform beam system structure, wherein each steel grating plate comprises a steel grating plate body, a square limiting pile, a snap ring and a hook; then, the adjacent steel grating plates are hooked and buckled into a whole through a hook; and finally, placing the steel grating on the outer platform beam system structure to enable the square limiting piles to be located at corners of the inner side of the beam system structure. The invention better limits the sliding of the steel grating, reduces the risk of falling into the sea of the walking personnel on the platform, has the characteristics of simple and convenient operation, good economy, high safety and the like, and is beneficial to popularization and application.

Description

A kind of offshore wind power foundation outer platform and manufacturing and installation method

technical field

The invention relates to a steel grating, in particular to an offshore wind power foundation outer platform and a manufacturing and installation method.

Background technique

The outer platform of the offshore wind turbine foundation generally uses steel grating as the bearing plate. Steel grating has the characteristics of high structural strength, corrosion resistance, slip resistance, transparency, good vision, material saving, and easy construction. The steel grating is generally laid directly on the beam structure of the outer platform of the foundation, and some projects will add fixed facilities such as saddle clips. Due to the limited capacity of the steel grating processing plant, the side length of the existing steel grating generally does not exceed 1.5 meters; in addition, considering the extra space reserved for installation, there is generally a large gap after the steel grating is laid on the outer platform beam system. The structural dimensions of the individual beams of the outer platform are not large, and the steel grating may experience cumulative displacement after being affected by the friction of the goods and the movement of people for a long time, and even the slippage of the edges and corners may occur. At this time, if people walk without paying attention to stepping on the steel grating that has lost its support, it is very likely to cause a fall accident. The method of adding a saddle clip to fix the steel grating can avoid the steel grating to a large extent, but the saddle clip will form a bulge on the steel grating. fall. Therefore, the traditional arrangement of steel gratings is easy to cause people to fall or fall, and there is a greater safety hazard.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an offshore wind power basic outer platform and a manufacturing and installation method with simple installation, high safety and good economy.

In order to achieve the above purpose, the present invention provides the following technical solutions: an offshore wind power foundation outer platform, comprising an outer platform beam structure fixed on the offshore wind power foundation, an outer platform railing installed on the outer edge of the outer platform beam structure, a plurality of steel gratings laid above the outer platform girder structure, the steel gratings include a steel grating body, and the steel grating body includes four outer edges;

Four vertically downward square limit piles are fixedly arranged on the lower surface of the steel grating body. The square limit piles are close to the four corners of the steel grating body and are stuck on the outer platform beam. In the structure; a snap ring is fixed on the outer edge adjacent to the outer platform railing, the snap ring is snapped into the upright column of the outer platform rail, the outer edge is also provided with a hook, the hook One end is welded on the outer edge, and the other end is buckled with the outer edge of the adjacent steel grating, so that all the steel gratings form a whole; wherein, the same outer edge will not be provided with the For the snap ring and the hook, only one of the two parallel and adjacent outer outer edges is provided with the hook.

Preferably, the hook is L-shaped.

Preferably, two of the hooks are arranged on one of the outer edges.

Preferably, the snap ring is a semicircular snap ring.

Preferably, the diameter of the snap ring is equal to the diameter of the outer platform railing post.

Preferably, the square limit piles are clamped at the inner corners of the outer platform beam system.

Preferably, the distance between the square limit pile and the inner corner of the outer platform beam structure is 1 cm˜1.5 cm.

Preferably, it is characterized in that: the length, width and height of the square limit pile are 4cm, 4cm and 8cm in sequence.

The present invention also provides a method for manufacturing and installing an offshore wind power foundation outer platform, comprising the following steps:

a. Install the outer platform railing and the outer platform beam structure according to the design plan;

b. According to the arrangement of the outer platform railing and the outer platform beam structure, design the positions of the steel grating body, the snap ring and the hook, and implement the steel grating after lofting according to the actual layout on site. grid production;

c. Install the steel grating on site, and snap the snap ring on the outer edge of the outer platform adjacent to the outer platform rail into the column of the outer platform rail;

d. Adjust the steel grating, and form the adjacent steel grating into a whole through the hook;

e. Place the steel grating on the outer platform girder structure, so that the square limit pile is clamped at the inner corner of the outer platform girder structure.

Beneficial effects of the present invention: the present invention makes the steel grating as a whole through the connection of hooks on the outer edge of the steel grating, which is convenient for assembly; at the same time, the platform railing column is used to restrain the semicircular snap ring on the outer edge of the steel grating. . The restraint of the beam system structure on the square limit structure of the steel grating can better limit the sliding of the steel grating, and there will be no partial suspension, which reduces the risk of falling into the sea caused by the partial suspension of the walking personnel on the platform. The safety is high, the invention is convenient to manufacture and install, and has good economy, which is favorable for popularization and utilization.

Description of drawings

Figure 1 is a schematic structural diagram of an offshore wind power foundation outer platform;

Fig. 2 is the structural representation of steel grating;

Figure 3 is a schematic structural diagram of a square limit pile;

Fig. 4 is the structural representation of the snap ring;

Figure 5 is a schematic diagram of the structure of the hook.

In the figure: outer platform railing 1, steel grating 2, square limit pile 21, snap ring 22, hook 23, steel grating body 24, outer edge 241, tower 3, offshore wind power foundation 4, outer platform beam system Structure 5.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in FIGS. 1 to 5 , an offshore wind power foundation outer platform includes an outer platform beam structure 5 fixed on the offshore wind power foundation 4 , and an outer platform railing 1 installed on the outer edge of the outer platform beam structure 5 . , a number of steel gratings 2 laid on the top of the outer platform beam system 5, the steel grating 2 includes a steel grating body 24, and the steel grating body 24 includes four outer edges 241;

Four square limit piles 21 vertically downward are fixed on the lower surface of the steel grating body 24 . In the inner corners of the outer platform beam structure 5, the positioning and size of the square limit piles 21 are determined according to the arrangement of the outer platform beam structure 5. The length, width and height of the square limit piles 21 are in order of 4cm, 4cm and 8cm, the distance between the square limit pile 21 and the outer platform beam structure 5 is 1cm-1.5cm. Due to the limitation of the outer platform beam structure 5 on the square limit pile 21, the It is ensured that the steel grating 2 does not slip beyond 1.5 cm.

A snap ring 22 is fixed on the outer edge 241 adjacent to the outer platform railing 1 . The snap ring 22 is a semicircular snap ring, and the diameter of the snap ring 22 is the same as the diameter of the column of the outer platform rail 11 . Equivalently, the snap ring 22 is snapped into the column of the outer platform railing 1, and is in encircling contact with the column of the outer platform railing 1. The restraint of the snap ring 22 by the column of the outer platform rail 1 can limit the The steel grating 2 slides outward in the radial direction.

The outer edge 241 is also provided with hooks 23, the hooks 23 are L-shaped, two of the outer edges 241 are provided with two hooks 23, and one end of the hooks 23 is welded to the outer edge. 241, the other end is buckled with the outer edge 241 of the adjacent steel grating 2. In order to ensure the levelness of the steel grating 2 after installation, the hooks of the outer edge 241 should be reserved. Out of the assembly space, through the hooks of the hooks 23, each steel grating 2 forms a whole, which can better limit the sliding of the steel grating 2; wherein, the same outer edge 241 will not be set at the same time. For the snap ring 22 and the hook 23 , the hook 23 is provided on only one of the outer edges 241 of the two parallel and adjacent outer edges 241 .

In this embodiment, the steel grating body 24 , the snap ring 22 , and the hook 23 are all made of carbon structural steel, and are galvanized, and the snap ring 22 is also coated for protection. The above treatment can prevent steel from rusting.

The present invention also provides a method for manufacturing and installing an offshore wind power foundation outer platform, comprising the following steps:

a. Install the outer platform railing 1 and the outer platform beam system 5 according to the design plan;

b. According to the arrangement of the outer platform railing 1 and the outer platform beam structure 5, the steel grating 2 is produced, the steel grating body 24, the square limit pile 21, the snap ring 22 and the hook 23 are designed, and the square limit pile 21 is determined. , the position of the snap ring 22 and the hook 23, the steel grating 2 is produced after setting out in combination with the actual layout of the site;

c. Install the steel grating 2 on site, and snap the snap ring 22 on the outer edge 241 of the steel grating 2 adjacent to the outer platform railing 1 into the column of the outer platform railing 1;

d. Adjust the steel grating 2, and form a whole with the adjacent steel grating 2 through the hooks 23;

e. Place the steel grating 2 on the outer platform beam structure 5 so that the square limit pile 21 is located at the inner corner of the outer platform beam structure 5 .

After all the steel gratings 2 are installed, due to the connection of the hooks 23 on the outer edge 241 of the steel grating 2, the steel grating 2 will become a whole. Due to the constraint of the outer platform beam structure 5 on the square limit structure 21, the steel grating is difficult to slip, and there will be no partial suspension, and the passage of operators on it will be relatively safe.

The basic principles and main structural features of the present invention have been shown and described above. The present invention is not limited by the above examples, and without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (9)

1. An offshore wind power foundation outer platform, comprising an outer platform beam structure (5) fixed on the offshore wind power foundation (4), an outer platform railing (1) installed on the outer edge of the outer platform beam system (5) ), several steel gratings (2) laid above the outer platform beam system (5), the steel gratings (2) comprising a steel grating body (24), the steel grating body (24) ) includes four outer edges (241), characterized in that: Four vertically downward square limit piles (21) are fixedly arranged on the lower surface of the steel grating body (24), and the square limit piles (21) are close to the four square limit piles (21) of the steel grating body (24). at the corners, and clamped in the outer platform beam structure (5); a snap ring (22) is fixedly arranged on the outer edge (241) adjacent to the outer platform railing (1), and the snap ring (22) Clip into the upright column of the outer platform railing (1), the outer edge (241) is also provided with a hook (23), and one end of the hook (23) is welded to the outer edge (241) , the other end is buckled with the outer edge (241) of the adjacent steel grating (2), so that all the steel gratings (2) form a whole; wherein, the same outer edge (241) will not The snap ring (22) and the hook (23) are provided at the same time, and the hook is provided on only one of the outer edges (241) of the two parallel and adjacent outer edges (241). (twenty three). 2 . The offshore wind power foundation outer platform according to claim 1 , wherein the hook ( 23 ) is L-shaped. 3 . 3. The offshore wind power foundation outer platform according to claim 1 or 2, characterized in that: one outer edge (241) is provided with two hooks (23). 4 . The offshore wind power foundation outer platform according to claim 1 , wherein the snap ring ( 22 ) is a semicircular snap ring. 5 . 5 . The offshore wind power foundation outer platform according to claim 4 , wherein the diameter of the snap ring ( 22 ) is equal to the diameter of the column of the outer platform railing ( 11 ). 6 . 6 . The offshore wind power foundation outer platform according to claim 1 , wherein the square limit piles ( 21 ) are stuck at the inner corners of the outer platform beam structure ( 5 ). 7 . 7 . The offshore wind power foundation outer platform according to claim 6 , wherein the distance between the square limit pile ( 21 ) and the inner corner of the outer platform beam structure ( 5 ) is 1 cm to 1.5 cm. 8 . . 8 . The offshore wind power foundation outer platform according to claim 1 , wherein the length, width and height of the square limit pile ( 21 ) are 4 cm, 4 cm and 8 cm in sequence. 9 . 9. A production and installation method for an offshore wind power foundation outer platform, comprising the following steps: a. Install the outer platform railing (1) and the outer platform beam structure (5) according to the design plan; b. According to the arrangement of the outer platform railing (1) and the outer platform beam system (5), design the steel grating body (24), the square limit pile (21), and the snap ring (22) and the hook (23), determine the position of the square limit pile (21), the snap ring (22) and the hook (23), carry out the lofting according to the actual layout of the site and implement the The steel grating (2) is produced; c. Install the steel grating (2) on site, and snap the snap ring (22) on the outer edge (241) adjacent to the outer platform railing (1) into the outer platform railing (1). 1) of the column; d. Adjusting the steel grating plate (2), forming a whole by the hook (23) of the adjacent steel grating plate (2); e. Place the steel grating (2) on the outer platform beam structure (5), so that the square limit pile (21) is clamped at the inner corner of the outer platform beam structure (5).

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