Triangular steel-concrete combined structure floating platform and construction method thereof

Abstract

The invention discloses a triangular steel-concrete combined structure floating platform and a construction method thereof, and belongs to the technical field of floating platforms, the triangular steel-concrete combined structure floating platform comprises a floating platform and a buoy, the floating platform comprises a bending piece, two extending pieces and a connecting piece, and the ends of the two extending pieces are installed on the bending piece; each extension piece comprises a plurality of connecting cylinder sections which are sequentially spliced end to end, and the connecting cylinder sections of one extension piece are connected through steel strands; the number of the floating barrels is multiple, the floating barrels are fixedly arranged at the tops of the two extending pieces respectively, one floating barrel is used for being connected with a draught fan, and the connecting piece is used for connecting the connecting barrel sections, away from the bent piece, of the two extending pieces. The device has the effects that the device can be conveniently adapted to the mounting conditions of fans with different sizes or weights, and the applicability is improved.

Description

Technical Field

[0001] The invention relates to the field of floating platforms, in particular to a triangular steel-concrete composite structure floating platform and a construction method thereof. Background Art

[0002] Steel-concrete composite floating platform refers to a floating platform made of two materials: steel and concrete. This type of platform combines the high strength and durability of steel with the load-bearing capacity and stability of concrete, making it more earthquake-resistant and durable.

[0003] In the prior art, a steel-concrete composite floating platform for providing buoyancy and stability for a wind turbine unit includes a floating platform and a pontoon, wherein the floating platform is arranged in a triangular shape with an integrated structure, a plurality of pontoons are arranged and are fixedly arranged on the top of the floating platform, and one of the pontoons is used to connect to the wind turbine.

[0004] With respect to the above-mentioned prior art, the size of the floating platform structure arranged in a triangular shape is fixed, which is not convenient for adapting to the installation conditions of fans of different sizes or weights, and has poor applicability. Summary of the invention

[0005] In order to facilitate the adaptation to the installation conditions of wind turbines of different sizes or weights and improve applicability, the present application provides a triangular steel-concrete composite structure floating platform.

[0006] The present application provides a triangular steel-concrete composite structure floating platform, which adopts the following technical solution: A triangular steel-concrete composite floating platform comprises a floating platform and a pontoon, wherein the floating platform comprises a bending part, two extension parts and a connecting part, one end of each of the two extension parts is mounted on the bending part; the extension part comprises a plurality of connecting barrel sections which are sequentially spliced ​​end to end, and each connecting barrel section of the extension part is connected by a steel strand; a plurality of pontoons are provided, each of which is fixedly arranged on the top of the floating platform, wherein one of the pontoons is used for connecting to a wind turbine, and the connecting part is used for connecting the connecting barrel sections of the two extension parts away from the bending part.

[0007] By adopting the above technical solution, the structural dimensions of the floating platform can be adjusted by connecting different numbers of connecting barrel sections and connecting the connecting barrel sections of the two extension members away from the bending member through the connecting member, thereby facilitating the adjustment of the buoyancy of the entire floating platform, so that the floating platform can adapt to the installation conditions of wind turbines of different sizes or weights, which is conducive to improving applicability. In addition, the setting of the extension member formed by assembling the connecting barrel sections through steel strands is convenient for the transportation of the floating platform on the one hand, and for the rapid production of various components of the floating platform on the other hand.

[0008] Optionally, a first flange is fixedly mounted on the end of the connecting cylinder section of the extending member close to the bending member, and a second flange is fixedly mounted on the end of the bending member close to the extending member, and the first flange and the second flange are fixed by welding.

[0009] By adopting the above technical solution, the first flange and the second flange are fixed by welding, so that the connection between the extension part and the bending part is reliable and stable, which is conducive to ensuring the overall structural stability of the entire platform.

[0010] Optionally, the connecting cylinder sections are provided with circumferentially distributed and penetrating connecting holes, and the first flange is provided with a first groove in an annular shape on the side facing the second flange, and the first groove is provided with avoidance holes corresponding to the connecting holes and penetrating therethrough, and the connecting holes and the avoidance holes are both used for passing the steel strands, and one end of the steel strand is fixed in the first groove through an anchor plate.

[0011] By adopting the above technical scheme, the setting of the anchor plate is conducive to ensuring the stability of the position of the steel strand after it is connected to each connecting cylinder section, and the setting of fixing a section of the steel strand between the first flange and the second flange facilitates the hidden protection of the steel strand, making it less likely for the steel strand to be corroded by water, which is conducive to ensuring the service life of the steel strand.

[0012] Optionally, a plurality of circumferentially distributed first reinforcing ribs are arranged in the first groove, a circle of annularly arranged second grooves is formed on the side of the second flange plate facing the first flange plate, and a plurality of circumferentially distributed second reinforcing ribs are arranged in the second groove.

[0013] By adopting the above technical solution, the provision of the first reinforcing rib and the second reinforcing rib is conducive to ensuring the structural strength of the first flange and the second flange, and further conducive to enhancing the structural strength and fatigue resistance of the joint coupling.

[0014] Optionally, when the first flange and the second flange are welded and fixed, the first groove is connected to the second groove and grouted.

[0015] By adopting the above technical solution, the grouting between the first flange and the second flange is conducive to further ensuring the connection strength between the first flange and the second flange.

[0016] Optionally, a water storage cavity is provided through the connecting cylinder section, and two connecting partitions are fixedly installed in the water storage cavity. The two connecting partitions are arranged along the length direction of the extension piece and divide the water storage cavity into three partition cavities. At least two of the partition cavities are provided with a water inlet hole and a water outlet hole connected to the outside.

[0017] By adopting the above technical solution, water is injected into different partition cavities of the water storage cavity to facilitate the adjustment of the diving depth of the entire platform, thereby adapting to different installation conditions. At the same time, when facing different weather conditions, different amounts of water are injected into different partition cavities to facilitate the adjustment of the inclination of the extension piece, which is beneficial to further ensure the overall stability of the position of the floating platform.

[0018] Optionally, a sealing gasket is fixedly provided between two adjacent connecting cylinder sections of the extension member.

[0019] By adopting the above technical solution, the provision of the sealing gasket makes it easy to isolate the moisture inside and outside the connecting tube section, which is beneficial to ensuring the overall stability of the connecting tube section after water storage.

[0020] Optionally, the buoy includes an installation cylinder and a fixed cylinder, the installation cylinder is fixedly installed on the top of the bending part, two fixed cylinders are provided, the two fixed cylinders are respectively fixedly installed on the top of the two extension parts and are located at the free ends of the two extension parts away from the bending parts, the distances between the two fixed cylinders and the installation cylinder are equal, and the installation cylinder is used to install the wind turbine; the connecting part includes a connecting beam and a reinforcement rod, the two ends of the connecting beam are respectively fixedly installed on the two fixed cylinders, two reinforcement rods are provided, one end of the two reinforcement rods are respectively fixedly connected to the two buoys, and the other ends are both fixedly connected to the connecting beam.

[0021] By adopting the above technical solution, the setting of the fixed cylinder is conducive to ensuring the stability of the overall position of the platform after the wind turbine is installed. The setting of the connecting beam and the reinforcement rod is conducive to further enhancing the connection stability between the two fixed cylinders on the one hand, and on the other hand, it is convenient to drag the entire platform to move on the sea surface by pulling the connecting beam.

[0022] Optionally, the connecting part includes two bending parts and an extension part, the two end parts of the extension part are respectively connected to the two bending parts, the other ends of the two bending parts are respectively connected to one end of the two extension parts away from the bending parts, the extension part includes a plurality of connecting cylinders spliced ​​end to end, and the connecting cylinders of the extension part are connected by steel wire ropes.

[0023] By adopting the above technical solution, the overall stress condition of the platform is made more uniform, making it easier to withstand more extreme loads and stresses in the marine environment and to more stably carry the wind turbines.

[0024] In the second aspect, the present application provides a construction method for a triangular steel-concrete composite structure floating platform, which adopts the following technical scheme: based on the above-mentioned triangular steel-concrete composite structure floating platform, it includes the following specific steps: S1, splicing the prefabricated connecting cylinder sections end to end in sequence and connecting them through steel strands to realize the splicing of the extension parts; S2, fixing the ends of the steel strands connecting the connecting cylinder sections through anchor plates to ensure the overall stability of the extension parts after splicing; S3, fixing the two spliced ​​extension parts at the two ends of the bending part through flanges respectively; S4, installing the connecting part between the two extension parts; S5, installing the wind turbine on one of the pontoons through steel strands and bolts.

[0025] By adopting the above technical solution, the length of the extension piece can be adjusted by connecting different numbers of connecting barrel sections during the splicing process of the extension piece, that is, the size of the floating platform structure can be adjusted, so that it is convenient to adjust the buoyancy of the floating platform as a whole, so that the buoyancy can be adapted to the installation of wind turbines of different sizes or weights, which is conducive to improving applicability. In addition, the arrangement of the extension piece formed by assembling the connecting barrel sections is convenient for the transportation of the floating platform on the one hand, and for the rapid production of various components of the floating platform on the other hand.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The size of the floating platform structure can be adjusted by connecting different numbers of connecting cylinder sections and connecting the connecting cylinder sections of the two extension parts away from the bending parts through connecting parts, so as to facilitate the adjustment of the buoyancy of the floating platform as a whole, so that the floating platform can adapt to the installation of wind turbines of different sizes or weights, which is conducive to improving applicability.

[0027] 2. The setting of the anchor plate is conducive to ensuring the stability of the position of the steel strand after it is connected to each connecting cylinder segment, and the setting of fixing a section of the steel strand between the first flange and the second flange facilitates the hidden protection of the steel strand, making it less likely for the steel strand to be corroded by water, which is conducive to ensuring the service life of the steel strand.

[0028] 3. Injecting water into different partition cavities of the water storage cavity facilitates the adjustment of the diving depth of the platform as a whole, so as to adapt to different installation conditions. At the same time, in the face of different weather conditions, by injecting different amounts of water into different partition cavities, it is convenient to adjust the inclination of the extension, which is conducive to further ensuring the overall stability of the floating platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0030] Figure 2It is an exploded schematic diagram of the connection structure of the bending part and the extension part in Example 1 of the present application.

[0031] Figure 3 yes Figure 2 A partial enlarged schematic diagram of part A.

[0032] Figure 4 It is a schematic diagram of the structure of the bending part in Example 1 of the present application.

[0033] Figure 5 It is a schematic diagram of the overall structure of Example 2 of the present application.

[0034] Description of reference numerals: 1. Bending member; 101. Bending section; 2. Extension member; 201. Connecting cylinder section; 3. Connecting member; 301. Connecting crossbeam; 302. Reinforcing rod; 303. Bending part; 304. Extension part; 3041. Connecting cylinder body; 4. Water storage cavity; 401. Partition cavity; 5. Connecting partition; 6. Water inlet hole; 7. Water outlet hole; 8. Sealing pad; 9. Partition; 10. First flange; 11. Second flange; 12. First groove; 13 , first reinforcing rib; 14, second groove; 15, second reinforcing rib; 16, connecting rib; 17, connecting hole; 18, avoidance hole; 19, anchor plate; 191, plate body; 192, chuck; 1921, clamping part; 1922, limit spring; 20, through hole; 21, positioning groove; 22, placement groove; 23, cover; 24, installation cylinder; 25, fixing cylinder; 26, fan; 261, support part; 27, blocking part. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-5 This application is described in further detail.

[0036] Example 1.

[0037] The embodiment of the present application discloses a triangular steel-concrete composite structure floating platform.

[0038] Reference Figure 1 The triangular steel-concrete composite structure floating platform includes a bending part 1, two extension parts 2 and a connecting part 3, wherein the bending part 1 adopts high-strength structural steel so that the bending part 1 has excellent properties of fatigue resistance, bending moment resistance, shear resistance and corrosion resistance. The bending part 1 includes two bending sections 101 fixedly connected as one body, and the angle between the two bending sections 101 is sixty degrees, that is, the cross section of the bending part 1 is roughly in a "V" shape, and the two extension parts 2 are respectively connected to the ends of the two bending sections 101.

[0039] Reference Figure 1 and Figure 2The extension piece 2 includes a plurality of connecting barrel sections 201 which are spliced ​​end to end in sequence. Each connecting barrel section 201 of the extension piece 2 is connected by a steel strand. Specifically, the connecting barrel section 201 is made of UHPC ultra-high performance concrete. The cross section of the connecting barrel section 201 is annular, and the top and bottom surfaces of the connecting barrel section 201 are both flat. Both sides of the connecting barrel section 201 are curved, so as to better bear the force and provide better stability when acting as a floating platform to bear the load of structures such as the wind turbine 26. The plane at the top of the connecting barrel section 201 facilitates more convenient placement and support of the structure, and the plane at the bottom of the connecting barrel section 201 facilitates better support and provides stable buoyancy.

[0040] Reference Figure 2 and Figure 3 A water storage cavity 4 is provided at the end of the connecting cylinder section 201 along its length direction, and two vertically arranged connecting partitions 5 are fixedly installed in the water storage cavity 4. The two sides of the connecting partition 5 in the vertical direction are respectively fixedly connected to the two cavity walls of the water storage cavity 4. The two connecting partitions 5 are both arranged along the length direction of the extension member 2 and are the same length as the connecting cylinder section 201, so that the connecting partition 5 divides the water storage cavity 4 into three partition cavities 401. Specifically, the partition cavities 401 near the two sides of the connecting cylinder section 201 are set as ballast cavities, and the partition cavity 401 near the middle of the connecting cylinder section 201 can be set as a ballast cavity or a pedestrian cavity, which can be adaptively set according to actual needs. In the embodiment of the present application, the three partition cavities 401 are all set as ballast cavities.

[0041] Continue to refer to Figure 2 and Figure 3 Each partition cavity 401, i.e., each ballast cavity, is provided with a water inlet 6 and a water outlet 7 connected to the outside. When the partition cavity 401 located in the middle of the connecting cylinder section 201 is set as a manhole cavity, the manhole cavity does not have a water inlet 6 and a water outlet 7. Water is injected into different partition cavities 401 of the water storage cavity 4 simultaneously by a pump to adjust the diving depth of the entire platform, thereby adapting to different installation conditions. At the same time, in the face of different weather conditions, different amounts of water are injected into different partition cavities 401 by a pump or water in different partition cavities 401 is discharged by a pump to adjust the inclination of the extension member 2, which is conducive to further ensuring the overall stability of the position of the floating platform.

[0042] Reference Figure 2 and Figure 4In order to isolate the water inside and outside the connecting cylinder section 201 and ensure the overall stability of the connecting cylinder section 201 after water storage, a sealing gasket 8 is fixedly sleeved and connected to the outer peripheral surface of one connecting cylinder section 201 facing the other connecting cylinder section 201, and a partition 9 is fixedly arranged inside the sealing gasket 8. When the two connecting cylinder sections 201 are connected, the two connecting cylinder sections 201 are respectively pressed against the two sides of the partition 9, and the inner sides of the sealing gasket 8 are respectively pressed against the two connecting cylinder sections 201, so as to fully ensure the sealing stability between the two connecting cylinder sections 201 after connection. The two bending sections 101 of the bending member 1 are fixedly provided with a stopper 27, which closes the opening of one end of each partition cavity 401 to achieve stable separation of each partition cavity 401 of the two extension members 2.

[0043] Reference Figure 2 and Figure 3 In order to facilitate the stable connection between the bending part 1 and the extension part 2, the end of the connecting cylinder section 201 of the extension part 2 close to the bending part 1 is fixedly installed with a first flange 10 through an anchor plate 19 and a steel strand, and the end of the bending section 101 of the bending part 1 close to the extension part 2 is fixedly installed with a second flange 11 by welding or bolts, and the first flange 10 and the second flange 11 are fixed by welding.

[0044] Reference Figure 2 A first groove 12 in the shape of an annular arrangement is provided on one side of the first flange 10 facing the second flange 11, and a plurality of first reinforcing ribs 13 evenly distributed in the circumferential direction are fixedly arranged in the first groove 12; a second groove 14 in the shape of an annular arrangement is provided on one side of the second flange 11 facing the first flange 10, and a plurality of second reinforcing ribs 15 evenly distributed in the circumferential direction are fixedly arranged in the second groove 14, so as to ensure the structural stability of the first flange 10 and the second flange 11.

[0045] Continue to refer to Figure 2 A plurality of circumferentially distributed reinforcing ribs 16 are fixedly connected to the side of the second flange 11 away from the first flange 10, which is conducive to further ensuring the structural strength of the second flange 11. After the first flange 10 and the second flange 11 are welded and fixed, the first groove 12 is connected to the second groove 14, and grouting is performed in the first groove 12. In the embodiment of the present application, the grouting material can use UHPC ultra-high performance concrete. After the grouting solidifies, a grouting layer is formed in the first groove 12 and the second groove 14, which is conducive to further ensuring the connection stability between the first flange 10 and the second flange 11.

[0046] Reference Figure 2 and Figure 3The connecting barrel section 201 and each connecting baffle 5 are provided with connecting holes 17 penetrating along their length direction. The connecting holes 17 located at the connecting barrel section 201 are evenly distributed in the circumferential direction, and the connecting holes 17 located at the connecting baffle 5 are evenly distributed along the length direction of their own surface. The bottom wall of the first groove 12 is provided with avoidance holes 18 corresponding to each connecting hole 17 and penetrating therethrough. Each connecting hole 17 and the avoidance holes 18 are used for steel strands to pass through, so as to fully ensure the connection stability between each connecting barrel section 201 by setting multiple groups of steel strands.

[0047] Continue to refer to Figure 2 and Figure 3 Specifically, the anchor pad 19 at one end of each steel strand is located in the first groove 12, so as to realize hidden protection of the steel strand, so that the steel strand is not easily corroded by water, and the service life of the steel strand is guaranteed. Further, the anchor pad 19 includes a pad body 191 and a clamp 192. The pad body 191 is provided with a through hole 20 for the steel strand to pass through. In the embodiment of the present application, two through holes 20 are provided, and two clamps 192 are provided corresponding to the through holes 20.

[0048] Reference Figure 1 and Figure 3 The clamp 192 includes two clamping parts 1921 and a limiting spring 1922. The two clamping parts 1921 are opposite to each other and are both provided with a clamping groove 21 that matches the shape of the steel strand. The limiting spring 1922 is a ring-shaped arrangement that is closed from beginning to end. The limiting spring 1922 is sleeved on the outer circumference of the two clamping parts 1921. To ensure the position stability of the limiting spring 1922, the outer circumference of the two clamping parts 1921 is provided with a placement groove 22 for placing the limiting spring 1922. The two clamping parts 1921 realize the extrusion and positioning of the steel strand under the elastic force of the limiting spring 1922. The two clamping parts 1921 are both inserted into the through hole 20, and the cross-sectional dimensions of the two clamping parts 1921 gradually increase from the direction close to the through hole 20 opening to the direction away from the through hole 20 opening, so as to fully ensure the stability of the two clamping parts 1921 when extruding and positioning the steel strand. The ends of the connecting barrel section 201 of the two extension members 2 away from the bending member 1 are both provided with a cover 23. The connection method between the cover 23 and the connecting barrel section 201 is the same as the connection method between the connecting barrel section 201 and the bending member 1, and both are fixed by the first flange 10 and the second flange 11, which will not be repeated here. The setting of the cover 23 is mainly used to achieve stable closure of the end opening of the connecting barrel section 201.

[0049] Reference Figure 1In the embodiment of the present application, three buoys are provided. Specifically, the buoy includes an installation cylinder 24 and a fixed cylinder 25, wherein the installation cylinder 24 is vertically fixedly installed on the top of the bending part 1, and two fixed cylinders 25 are provided. The two fixed cylinders 25 are respectively fixedly installed on the tops of the two connecting cylinder sections 201 of the two extension parts 2 away from the bending part 1, and the distances between the two fixed cylinders 25 and the installation cylinder 24 are equal. The installation cylinder 24 is used to install the fan 26. Specifically, the supporting part of the fan 26 is spliced ​​by multiple sections of support parts 261, and the two adjacent support parts 261 are fixed by flanges. The bottom support part 261 is doubly fixed to the installation cylinder 24 by flanges and steel wire ropes.

[0050] Continue to refer to Figure 1 The connecting member 3 includes a connecting beam 301 and a reinforcing rod 302, wherein both ends of the connecting beam 301 are fixedly installed on the two fixed cylinders 25, and two reinforcing rods 302 are provided. One end of the two reinforcing rods 302 is fixedly connected to the two fixed cylinders 25, and the other end is fixedly connected to the connecting beam 301, so as to fully ensure the connection stability between the two fixed cylinders 25, and at the same time facilitate towing the platform as a whole to move on the sea surface by pulling the connecting beam 301.

[0051] The implementation principle of Example 1 of the present application is: by connecting different numbers of connecting cylinder sections 201 and connecting the connecting cylinder sections 201 of the two extension members 2 away from the bending member 1 through the connecting member 3, the size of the floating platform structure can be adjusted, thereby facilitating the adjustment of the buoyancy of the entire floating platform, so that the buoyancy can be adapted to the installation of fans 26 of different sizes or weights, which is beneficial to improving applicability. In addition, the setting of the extension member 2 formed by assembling each connecting cylinder section 201 through steel strands is convenient for the transportation of the floating platform on the one hand, and for the rapid production of various components of the floating platform on the other hand.

[0052] Example 2.

[0053] The main difference between the embodiment of the present application and the embodiment 1 is that the structure of the connecting member 3 is different, and the ends of the connecting cylinder sections 201 of the two extending members 2 away from the bending member 1 are not provided with a cover 23 .

[0054] Reference Figure 5In the embodiment of the present application, the connector 3 includes two bending parts 303 and an extension part 304, wherein the two bending parts 303 have the same structure as the bending part 1 and are both made of high-strength structural steel, and the bending part 303 also includes two bending sections 101 that are integrally fixedly connected. The extension part 304 has the same structure as the extension part 2, and includes a plurality of connecting cylinders 3041 that are spliced ​​end to end in sequence, and each connecting cylinder 3041 of the extension part 304 is connected by a steel strand, and the connection method of each connecting cylinder 3041 of the extension part 304 is the same as the connection method of each connecting cylinder section 201 of the extension part 2, and both are fixed by steel strands and sealing pads 8, which will not be repeated here.

[0055] Continue to refer to Figure 5 The two ends of the extension part 304 are respectively connected to one end of the bending section 101 of the two bending parts 303, and the other end of the bending section 101 of the two bending parts 303 is respectively connected to the end of the two extension parts 2 away from the bending part 1. The connection method between the extension part 2 and the bending part 1, the connection method between the bending part 303 and the extension part 304, and the connection method between the bending part 303 and the extension part 2 are all the same, and are all connected and fixed by setting the first flange 10 and the second flange 11, which will not be repeated here.

[0056] The implementation principle of Example 2 of the present application is the same as that of Example 1, with the main difference being that, through the additional arrangement of two bending portions 303 and an extension portion 304, the stress condition of the overall platform when bearing the structure is more uniform, making it easier to withstand more extreme loads and stresses in the marine environment, that is, to achieve a more stable bearing of the wind turbine 26.

[0057] The present application also discloses a construction method of a triangular steel-concrete composite structure floating platform. The triangular steel-concrete composite structure floating platform and its construction method include the following specific steps: S1, splicing the prefabricated connection cylinder sections 201 end to end in sequence and connecting them through steel strands to achieve splicing and forming of the extension member 2.

[0058] S2, the ends of the steel strands connecting the connecting cylinder sections 201 are fixed by the anchor plate 19 to ensure the overall stability of the extension piece 2 after splicing. Specifically, the anchor plate 19 after fixing the ends of the steel strands is located in the first groove 12 of the first flange 10.

[0059] S3, the two extension parts 2 formed by splicing are fixedly installed at the two ends of the bending part 1 through flanges respectively. Specifically, when the first flange 10 and the second flange 11 are welded and fixed, each connecting rib 16 is inserted into the first groove 12 and each connecting rib 16 is made to abut against the inner wall of the first groove 12 to ensure the stability of the relative position of the first flange 10 and the second flange 11.

[0060] S4, installing the connecting member 3 between the two extending members 2.

[0061] S5, installing the fan 26 on one of the buoys through steel strands and bolts.

[0062] The implementation principle of the construction method of a triangular steel-concrete composite structure floating platform in the embodiment of the present application is: during the splicing process of the extension member 2, the length of the extension member 2 can be adjusted by connecting different numbers of connecting cylinder sections 201, that is, the size of the floating platform structure can be adjusted, thereby facilitating the adjustment of the buoyancy of the entire floating platform, so that the buoyancy of the floating platform can be adapted to the installation conditions of fans 26 of different sizes or weights, which is conducive to improving applicability.

[0063] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A triangular steel-concrete composite floating platform, comprising a floating platform and a pontoon, characterized in that: The floating platform comprises a bending part (1), two extension parts (2) and a connecting part (3), one end of each of the two extension parts (2) is mounted on the bending part (1); the extension part (2) comprises a plurality of connecting barrel sections (201) which are spliced ​​end to end, and each connecting barrel section (201) of the extension part (2) is connected by a steel strand; a plurality of buoys are provided, each of which is fixedly arranged on the top of the floating platform, one of the buoys is used to be connected to a fan (26), and the connecting part (3) is used to connect the connecting barrel sections (201) of the two extension parts (2) which are away from the bending part (1).

2. The triangular steel-concrete composite structure floating platform according to claim 1, characterized in that: A first flange (10) is fixedly mounted on the end of the connecting cylinder section (201) of the extending member (2) close to the bending member (1), and a second flange (11) is fixedly mounted on the end of the bending member (1) close to the extending member (2); the first flange (10) and the second flange (11) are fixed by welding.

3. The triangular steel-concrete composite structure floating platform according to claim 2 is characterized by: The connecting cylinder section (201) is provided with circumferentially distributed and through-going connecting holes (17); the first flange (10) is provided with a first groove (12) arranged in an annular shape on one side facing the second flange (11); the first groove (12) is provided with avoidance holes (18) corresponding to the connecting holes (17) and through-going; the connecting holes (17) and the avoidance holes (18) are both used for steel strands to pass through; one end of the steel strand is fixed in the first groove (12) via an anchor plate (19).

4. The triangular steel-concrete composite structure floating platform according to claim 3 is characterized by: A plurality of circumferentially distributed first reinforcing ribs (13) are arranged in the first groove (12); a second annularly arranged second groove (14) is provided on a side of the second flange (11) facing the first flange (10); a plurality of circumferentially distributed second reinforcing ribs (15) are arranged in the second groove (14).

5. The triangular steel-concrete composite structure floating platform according to claim 3 is characterized by: When the first flange (10) and the second flange (11) are welded and fixed, the first groove (12) and the second groove (14) are communicated and grouted.

6. The triangular steel-concrete composite structure floating platform according to claim 1, characterized in that: The connecting cylinder section (201) is provided with a water storage cavity (4) extending therethrough. Two connecting partitions (5) are fixedly installed in the water storage cavity (4). The two connecting partitions (5) are arranged along the length direction of the extension member (2) and divide the water storage cavity (4) into three partition cavities (401). At least two of the partition cavities (401) are provided with a water inlet hole (6) and a water outlet hole (7) communicating with the outside.

7. The triangular steel-concrete composite structure floating platform according to claim 6, characterized in that: A sealing gasket (8) is fixedly arranged between two adjacent connecting cylinder sections (201) of the extension member (2).

8. The triangular steel-concrete composite structure floating platform according to claim 1, characterized in that: The buoy comprises a mounting cylinder (24) and a fixed cylinder (25), wherein the mounting cylinder (24) is fixedly mounted on the top of the bending member (1), and two fixed cylinders (25) are provided, and the two fixed cylinders (25) are respectively fixedly mounted on the tops of the two extension members (2) and are located at the free ends of the two extension members (2) away from the bending member (1), and the distances between the two fixed cylinders (25) and the mounting cylinder (24) are equal, and the mounting cylinder (24) is used to install the fan (26); the connecting member (3) comprises a connecting crossbeam (301) and a reinforcing rod (302), wherein the two ends of the connecting crossbeam (301) are respectively fixedly mounted on the two fixed cylinders (25), and two reinforcing rods (302) are provided, and one end of the two reinforcing rods (302) is respectively fixedly connected to the two buoys, and the other end is fixedly connected to the connecting crossbeam (301).

9. The triangular steel-concrete composite structure floating platform according to claim 1, characterized in that: The connecting member (3) comprises two bending parts (303) and an extension part (304), the two ends of the extension part (304) are respectively connected to the two bending parts (303), the other ends of the two bending parts (303) are respectively connected to one end of the two extension parts (2) away from the bending part (1), the extension part (304) comprises a plurality of connecting cylinders (3041) spliced ​​end to end in sequence, and the connecting cylinders (3041) of the extension part (304) are connected by steel strands.

10. A construction method for a triangular steel-concrete composite structure floating platform, based on a triangular steel-concrete composite structure floating platform according to any one of claims 1 to 9, characterized in that: The method comprises the following specific steps: S1, splicing the prefabricated connecting cylinder sections (201) end to end in sequence and connecting them via steel strands to achieve splicing and forming of the extension piece (2); S2, fixing the ends of the steel strands connecting the connecting cylinder sections (201) by means of anchor plates (19) to ensure the overall stability of the extension member (2) after splicing; S3, fixing the two spliced ​​extension pieces (2) to the two ends of the bending piece (1) respectively through flanges; S4, installing the connecting member (3) between the two extension members (2); S5, installing the fan (26) on one of the buoys by means of steel strands and bolts.

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