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Solicitudes publicadas en los últimos 30 días / Applications published in the last 30 days
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A FLOATABLE RENEWABLE ENERGY PLATFORM

NºPublicación:  US20260217342A1 30/07/2026
Solicitante: 
RAINEY RODERICK [GB]
STODDART ARTHUR [GB]
RAINEY Roderick
STODDART Arthur
US_20260217342_A1

Resumen de: US20260217342A1

A floatable renewable energy platform is provided and comprises a superstructure including one or more generally horizontal, above-wave structural support members. The superstructure is supported by a plurality of floats interconnected by the structural members, and the platform is configured to provide an air gap between still water surface and the structural members in the range 10 m to 30 m.

Ring-based Vertical-Axis Wind Turbine (VAWT) System

NºPublicación:  US20260218678A1 30/07/2026
Solicitante: 
UNIV OF VIRGINIA PATENT FOUNDATION [US]
University of Virginia Patent Foundation
US_20260218678_A1

Resumen de: US20260218678A1

To provide high stability at low cost, a ring-based floatation system for a floating vertical-axis wind turbine is proposed. The system uses a buoyancy torus with a finite shell thickness, which can be sealed to prevent water from leaking inside the torus. This torus shape has an outside and inside diameter on a horizontal plane while having a circular cross-section in a vertical plane. This buoyancy torus serves as a floatation tube to provide buoyancy at a large maximum radial extent to enhance platform stability in terms of both inertia and metacentric height. The torus shape (or a similar faceted shape made of several cylindrical tubes connected in a circle) also provides high radial asymmetry and high structural robustness. This buoyancy torus supports rotating wind turbine blades which are affixed to a rotation ring, where the torus and the rotation ring have the same axis of revolution and where the blades and the rotation ring rotate about this axis of revolution. One or more electrical generators can be placed between the rotation ring and the buoyancy torus (or a foundation for an onshore wind turbine) to convert the rotational power of the blades (communicated to the rotation ring) into electrical power. This ring-based buoyancy platform can be ballasted by a variety of methods and can also be used to support offshore oil and gas drilling platforms.

A FLOATING SUPPORT STRUCTURE FOR A WIND TURBINE SYSTEM AND A METHOD FOR ASSEMBLY

NºPublicación:  EP4780725A1 29/07/2026
Solicitante: 
OCEAN VENTUS AS [NO]
Ocean Ventus AS
WO_2025061959_PA

Resumen de: WO2025061959A1

The invention describes a floating support structure (1) for supporting an off shore wind turbine comprising a first, second and third main section (10a, 10b, 10c) each comprising a horizontal part and a vertical part (12a, b, c) directly or indirectly connected to the radial end of the horizontal part and the central ends of the horizontal parts (11a, b, c) are joined in a central region thus creating a coupling space (7) underneath the horizontal parts and between the vertical parts. The floating support structure further comprises a transition piece (15) comprising a connecting flange (16) for connecting a coupling end of the wind turbine tower (101) to the support structure. The transition piece further comprises a reinforcement body (17) welded onto the first, second and third horizontal parts.

GUIDING SYSTEM FOR EXCHANGING A WIND TURBINE BLADE AND USE METHOD

NºPublicación:  US20260210338A1 23/07/2026
Solicitante: 
NABRAWIND TECH S L [ES]
NABRAWIND TECHNOLOGIES, S.L.
US_20260210338_A1

Resumen de: US20260210338A1

0000 A guiding system for exchanging a wind turbine blade, which uses an internal lifting and lowering system fixed to a rotor. The guiding system comprises semi-rigid passive retaining lines that form a safe catenary or track for lowering the blades without same hitting the tower or the ground as a result of incident winds of up to 15 m/s. A clip fastened to the end part of the blade slides along the retaining lines with the horizontal movement of the blade. The catenary may optionally have intermediate points, and the tension thereof is dependent on the incident wind: the greater the wind, the greater tension. The guiding system can be used for onshore wind turbines, floating offshore wind turbines connected to a spring, and boat-assisted offshore wind turbines on the high seas.

SEMI-SUBMERSIBLE TRIMARAN FLOATING OFFSHORE WIND VESSEL WITH TURRET MOORING

NºPublicación:  EP4778823A2 22/07/2026
Solicitante: 
TRIVANE LTD [GB]
Trivane Ltd
EP_4778823_PA

Resumen de: EP4778823A2

0001 A floating structure (1) having three buoyant bodies (3,5,7) for supporting a horizontal axis wind turbine (6) and wind turbine tower (27). The floating structure (1) is provided with a geostationary mooring system that permits it to weathervane in order to head the wind turbine (6) into the wind and has a wind turbine tower mount (29) for supporting the wind turbine tower (27). A central buoyant body (3) is located partially above water during assembly and tow out from port and is ballasted so that it is underwater when moored offshore, such that the floating structure (1) becomes a semi-submersible. The three buoyant bodies (3,5,7) are ship-shaped in form which reduces loads in the mooring system, and are made from stiffened flat plates, which are easier for many yards and fabrication shops to make, compared to cylindrical hulls.

FLOATING INTERVENTION VESSEL FOR TEMPORARILY DOCKING ON AN OFFSHORE WIND TURBINE PLATFORM AND ASSOCIATED INTERVENTION ASSEMBLY AND SYSTEM

NºPublicación:  US20260200561A1 16/07/2026
Solicitante: 
TECHNIP ENERGIES FRANCE [FR]
TECHNIP ENERGIES FRANCE
US_20260200561_A1

Resumen de: US20260200561A1

Floating intervention vessel intended to temporarily moor itself on an offshore wind turbine platform, associated intervention assembly and facility The invention relates to a vessel comprising a float (80) and a wind turbine intervention assembly, carried by the float (80) The float (80) comprises a buoyant body (86) and a fastening baseplate (88) protruding from the buoyant body (86) along a fastening axis (A-A′) on a lower surface of the offshore wind turbine platform. The buoyant body (86) defines a ballast-receiving volume, the vessel comprising a ballast controller configured to control the amount of ballast received in the ballast-receiving volume to raise an upper contact surface (94) of the baseplate (88) to place it in contact with a lower surface of the offshore wind turbine platform, the float (80) being monohull.

METHOD FOR TRANSPORTING HYDROGEN FROM A FLOATING WIND TURBINE TO A WATERCRAFT

NºPublicación:  US20260200556A1 16/07/2026
Solicitante: 
CRUSE OFFSHORE GMBH [DE]
CRUSE Offshore GmbH
US_20260200556_A1

Resumen de: US20260200556A1

A method (100) for transporting hydrogen from a floating wind turbine (10) to a watercraft (11) is proposed in order to transport environmentally friendly energy generated by an offshore wind turbine from the offshore wind turbine to land in a simple and safe manner, wherein hydrogen is provided in a holding tank (31) of a floating wind turbine (10), wherein a watercraft (11) with a transportation tank (36) is positioned at the floating wind turbine (10), wherein the hydrogen is conveyed from the holding tank (31) to the transportation tank (36) by means of a line (35) configured to convey the hydrogen.

Mooring Systems

NºPublicación:  US20260200554A1 16/07/2026
Solicitante: 
MODEC AMERICA INC [US]
MODEC America, Inc.
US_20260200554_A1

Resumen de: US20260200554A1

0000 Mooring systems for mooring a structure floating on a surface of a body of water. In some embodiments, the mooring system can include a base structure configured to be disposed on a seabed and a plurality of mooring assemblies. Each mooring assembly can include a yoke and a tether. The yoke can include a first end and a second end. The first end of the yoke can be configured to be connected to the base structure such that the yoke can be partially rotatable about an axis relative to the base structure. The tether can include a first end and a second end. The first end of the tether can be configured to be connected to the yoke toward the second end of the yoke. The second end of the tether can be configured to be connected to the structure floating on the surface of the body of water.

OFFSHORE WIND TURBINE SYSTEMS AND PROCESSES FOR INSTALLING SAME

NºPublicación:  US20260201866A1 16/07/2026
Solicitante: 
MODEC AMERICA INC [US]
MODEC America, Inc.
US_20260201866_A1

Resumen de: US20260201866A1

Offshore wind turbine systems and processes for installing same. The system can include a wind turbine generator that can include a plurality of blades connected thereto. The system can also include a first support arm and a second support arm each having a first end and a second end. The system can also include a support structure that can be configured to float on a surface of a body of water that can include first, second, and third columns. The first end of the first support arm and the first end of the second support arm can each support the wind turbine generator at an elevation above the support structure. The second end of the first support arm can be connected to and supported by the first column. The second end of the second support arm can be connected to and supported by the second column.

Floating Unit with Under Keel Tank

NºPublicación:  US20260200559A1 16/07/2026
Solicitante: 
CHEVRON U S A INC [US]
CHEVRON U.S.A. INC.
US_20260200559_A1

Resumen de: US20260200559A1

A tank is secured under the keel of a floating structure for offshore energy development. The tank is filled with ballast material that supplements or replaces the ballast already present on the floating structure, thereby gaining larger topsides payload capacity for the floating structure or increasing stability and motion performance of the floating structure.

METHOD FOR OPERATING AN ENERGY GENERATION DEVICE, CONTROL UNIT FOR AN ENERGY GENERATION DEVICE, ENERGY GENERATION DEVICE, COMPUTER PROGRAM PRODUCT

NºPublicación:  EP4775831A1 15/07/2026
Solicitante: 
SKYSAILS GROUP GMBH [DE]
SkySails Group GmbH
EP_4775831_A1

Resumen de: EP4775831A1

Verfahren zum Betreiben einer Energieerzeugungsvorrichtung, wobei die Energieerzeugungsvorrichtung eine Basisstation (28) und ein Kitesystem (23) umfasst. Das Kitesystem (23) umfasst einen Kite (14) und eine Gondel (25), wobei der Kite (14) über einen Leinenbaum (24) mit der Gondel (25) verbunden ist. Die Gondel (25) ist über ein Zugseil (15) mit der Basisstation (28) verbunden. Über eine mit dem Zugseil (15) ausgeübte Zugkraft wird elektrische Energie erzeugt, wobei der Kite (14) abwechselnd in einen ersten Betriebszustand (41) und einen zweiten Betriebszustand (42) gebracht wird. Im zweiten Betriebszustand (42) ist der Trimmwinkel (43) des Kite (14) kleiner ist als im ersten Betriebszustand (41). Im zweiten Betriebszustand (42) wird der Kite (14) durch Einholen des Zugseils (15) an die Basisstation (28) herangeholt, wobei die Einholgeschwindigkeit in Abhängigkeit von einem den Flugzustand des Kite (14) repräsentierenden Betriebsparameter (49) der Energieerzeugungsvorrichtung verändert wird. Die Erfindung betrifft auch eine Steuereinheit für eine Energieerzeugungsvorrichtung, eine Energieerzeugungsvorrichtung und ein Computerprogrammprodukt.

WIND FORCE PROPULSION DEVICE AND WIND FORCE PROPULSION SYSTEM

NºPublicación:  EP4775833A1 15/07/2026
Solicitante: 
NABTESCO CORP [JP]
Nabtesco Corporation
EP_4775833_PA

Resumen de: EP4775833A1

0001 The wind propulsion device is installed on a movable body and configured to generate propulsive force by receiving wind. The wind propulsion device includes one or more assemblies, where the one or more assemblies each consists of: a rotor configured to rotate about a rotation axis extending in a predetermined direction; and a plurality of plate-shaped blades fixedly attached to the rotor. The plurality of blades are disposed such that virtual straight lines connecting respective opposite ends of the plurality of blades are parallel to each other.

FLOATING OFFSHORE PLATFORM COMPRISING HOLLOW STRUCTURAL ELEMENTS CONNECTED TOGETHER, ELECTRICITY PRODUCING ASSEMBLY COMPRISING SUCH A PLATFORM, AND CORRESPONDING MANUFACTURING METHOD

NºPublicación:  EP4774191A1 15/07/2026
Solicitante: 
TOTALENERGIES ONETECH [FR]
TECHLAM [FR]
TotalEnergies OneTech
Techlam
EP_4520645_PA

Resumen de: EP4520645A1

A floating offshore platform comprising a first hollow structural element (24), a second hollow structural element (26), and a mechanical connection (28), altogether defining an interior volume (40) and an exterior volume (42), the connection comprising:- a first flange (52) defining a first axis (X1) and a first bearing surface (S1), the first bearing surface being spherical and concave,- a second flange (54) defining a second axis (X2) and a second bearing surface (S2), the second axis being intended to be aligned or offset with respect the first axis as a result of manufacturing and/or assembling tolerances,- a fastening system (56) comprising bolts (58),- a sealing system (60) for sealing the interior volume (40), the sealing system extending between the first flange and the second flange and surrounding the first axis.

METHODS AND SYSTEMS FOR FREE-FLOATING NAUTICAL STATIONKEEPING

NºPublicación:  US20260192894A1 09/07/2026
Solicitante: 
LONE GULL HOLDINGS LTD [US]
LONE GULL HOLDINGS, LTD.
US_20260192894_A1

Resumen de: US20260192894A1

0000 Methods and systems are provided for nautical stationkeeping of free-floating objects. In one example, a method includes adjusting translational motion of a body freely floating in water by rotating the body. The translational motion may be adjusted, for instance, to maintain the body within a geographic area. In certain examples, the adjustment of the translational motion may be realized via a Magnus effect induced by rotating the body. The body may be configured as, for example, a free-floating object such as a wave engine.

MOORING SYSTEM STATUS MONITORING FOR FLOATING OFFSHORE WIND TURBINE

NºPublicación:  US20260192890A1 09/07/2026
Solicitante: 
SIEMENS GAMESA RENEWABLE ENERGY AS [DK]
Siemens Gamesa Renewable Energy A/S
US_20260192890_A1

Resumen de: US20260192890A1

0000 A method of monitoring a mooring system (10) of a floating offshore installation, FOI, (100) that is moored by the mooring system (10) is provided. The method comprises obtaining parameters related to a position of the FOI, wherein the parameters include at least mooring system parameters that are indicative of a region (15) within which a position of the FOI is expected to lie. The method further includes obtaining position measurements of an actual position (11) of the FOI, and deriving, from the obtained parameters and from the position measurements of the FOI, a state of the mooring system (10) of the FOI.

TENSION-LEG FLOATING FOUNDATION, CONSTRUCTION METHOD AND WIND TURBINE GENERATOR SET

NºPublicación:  WO2026144995A1 09/07/2026
Solicitante: 
ZHEJIANG GOLDWIND SCIENCE & TECH CO LTD [CN]
\u6D59\u6C5F\u91D1\u98CE\u79D1\u6280\u6709\u9650\u516C\u53F8
WO_2026144995_A1

Resumen de: WO2026144995A1

A tension-leg floating foundation, comprising: a floating body (200), the floating body comprising a main column (210) and connectors (220) spaced apart from each other around the main column, the main column being configured to be connected to a wind turbine body, and one end of each connector being connected to a second end portion (210b) of the main column; and a plurality of tension assemblies (100) arranged spaced apart from each other around the floating body, each tension assembly comprising a tension leg (11) and a mooring connection portion (12), one side of each tension leg being universally connected to the connector, the other side thereof protruding from the connector toward the side where a first end is located, the mooring connection portion being arranged on the side of the tension leg protruding from the connector in an axial direction (X), and a mooring cable (300) being provided corresponding to each tension leg, wherein each tension leg is provided with a clearance cavity (115) runing therethrough in the axial direction, one end of the mooring cable is inserted into the clearance cavity and connected to the mooring connection portion, and the other end of the mooring cable is configured to be fixedly connected to the seabed. The tension-leg floating foundation can reduce the construction difficulty and construction cost of a wind turbine foundation. Further provided are a construction method and a wind turbine generator set.

FLOATING WIND TURBINE FOUNDATION AND WIND TURBINE GENERATOR

NºPublicación:  WO2026145157A1 09/07/2026
Solicitante: 
ZHEJIANG GOLDWIND SCIENCE & TECH CO LTD [CN]
\u6D59\u6C5F\u91D1\u98CE\u79D1\u6280\u6709\u9650\u516C\u53F8
WO_2026145157_A1

Resumen de: WO2026145157A1

A floating wind turbine foundation (100) and a wind turbine generator. The floating wind turbine foundation (100) comprises a floating main body (1) and a bending-moment compensation device (2). The floating main body (1) comprises a first upright column (11) and a plurality of floating body assemblies (12). The first upright column (11) comprises a first end and a second end arranged in an axial direction. The first end is used for supporting a wind turbine main body (200). The plurality of floating body assemblies (12) are arranged at intervals around the first upright column (11), and each floating body assembly (12) is connected to the first upright column (11). The bending-moment compensation device (2) is arranged on the floating main body (1). The bending-moment compensation device (2) comprises a counter-support assembly (21), traction members (22), and a driving mechanism (23). The counter-support assembly (21) is connected to the first upright column (11) and is provided with an execution end. Each traction member (22) is connected between a floating body assembly (12) and the execution end. The driving mechanism (23) drives the execution end to move toward the second end of the first upright column (11) and to at least partially protrude beyond bottom surfaces of the floating body assemblies (12) in the axial direction, so as to tension the floating body assemblies (12) via the traction members (22). The wind turbine generator comprises the wind turbine main body (

FLOATING WIND POWER SYSTEM

NºPublicación:  WO2026144949A1 09/07/2026
Solicitante: 
BROAD BSB CO [CN]
\u8FDC\u5927\u53EF\u5EFA\u79D1\u6280\u6709\u9650\u516C\u53F8
WO_2026144949_A1

Resumen de: WO2026144949A1

Disclosed in the present invention is a floating wind power system. At least three wind turbines form a wind power generation system by means of pontoons that are integrally connected; the plurality of pontoons are connected end to end to form a high-strength floating platform having a triangular structure or a rectangular structure; a stabilizing structure is provided between at least two pontoons; the stabilizing structure comprises at least one truss structure; a tower base is arranged on at least two connected pontoons; and a plurality of fixed traction devices are arranged on the high-strength floating platform. In the floating wind power system of the present invention, at least three wind turbines are arranged to be combined with a high-strength floating platform consisting of a plurality of pontoons that are integrally connected, to form a wind power generation system, wherein the span of the high-strength floating platform is greater than or equal to the height of a wind turbine tower; moreover, by designing a large-span structure, an offshore wind turbine can be effectively prevented from capsizing, and is enabled to only incline at a limited angle. The floating wind power system also realizes large‑scale power generation from deep‑water offshore wind by means of a multi-turbine arrangement and the design of a modular floating platform.

SHARED FLOATING WIND TURBINE FOUNDATION ARRAY WITH ANGLE-ADJUSTABLE ELASTIC MOORINGS

NºPublicación:  US20260192889A1 09/07/2026
Solicitante: 
JIANGSU UNIV OF SCIENCE AND TECHNOLOGY [CN]
JIANGSU UNIVERSITY OF SCIENCE AND TECHNOLOGY
US_20260192889_A1

Resumen de: US20260192889A1

A shared floating wind turbine foundation array with angle-adjustable elastic moorings is formed by connecting floating wind turbine foundations. Each floating wind turbine foundation includes a wind turbine tower, upper pontoons, a truss framework, lower mooring drums, a lower wind turbine hollow pile, a fixed static mooring line and a shared anchor; the lower wind turbine hollow pile includes a lifting plate, a hydraulic rod and a hydraulic device, the elastic chamber is internally provided with a pressure plate and an elastic device; and a first electric winch and a second electric winch are arranged in the winch chamber, and the first electric winch and the second electric winch drive the rotation of the adjacent lower wind turbine hollow piles by adjusting a length difference between the first power mooring line and the second power mooring line, thereby changing an angle of the adjacent wind turbine towers.

OPERATING A FLOATING WIND TURBINE

NºPublicación:  EP4771274A1 08/07/2026
Solicitante: 
SIEMENS GAMESA RENEWABLE ENERGY AS [DK]
Siemens Gamesa Renewable Energy A/S
EP_4549728_PA

Resumen de: EP4549728A1

A method of operating a floating wind turbine (FWT) is provided. The floating wind turbine (100) comprises a nacelle (105) and a rotor (101) mounted to the nacelle (105), wherein the floating wind turbine (100) is exposed to waves during operation, the waves causing a wave induced motion of the floating wind turbine (100). The floating wind turbine (100) is configured to operate a protective function (30). The method comprises obtaining wave information (17) indicative of the waves to which the floating wind turbine (100) is exposed and modifying the operation of the protective function (30) using the obtained wave information (17) to reduce an influence of the wave induced motion of the floating wind turbine (100) on the protective function (30).

SUBSEA POWER COLLECTION SYSTEM INCLUDING A DISTRIBUTED TRANSFORMER ARRANGEMENT

NºPublicación:  US20260189016A1 02/07/2026
Solicitante: 
ABB SCHWEIZ AG [CH]
ABB Schweiz AG
US_20260189016_A1

Resumen de: US20260189016A1

A power collection system for collecting power from a plurality of offshore power generation units comprises a three-phase sub-grid and a subsea power substation. The sub-grid has a plurality of power input points towards the power generation units and a shared three-phase power output point. The power substation is connected to the power output point, and its secondary side is arranged to be connected to a power consumer. The power substation shall comprise three one-phase transformers, which are contained in respective housings, wherein each housing is arranged to rest on the seabed and to be liftable to the sea surface separately from the other housings. Each phase of the power output point is connected to a primary side of a corresponding one of the one-phase transformers.

Mooring System for Drifting Energy Converters

NºPublicación:  AU2026204575A1 02/07/2026
Solicitante: 
LONE GULL HOLDINGS LTD
Lone Gull Holdings, Ltd.
AU_2026204575_A1

Resumen de: AU2026204575A1

Disclosed is a system that maintains the relative and/or absolute geographical positions of two or more buoyant devices floating in a body of water. A plurality of formation restoring tethers are disclosed which permit the unrestricted vertical movement of networked buoyant devices, while resisting increases in their lateral separations by providing restoring forces to oppose such separations. Tensioning mechanisms incorporated into the tethers generate the resistance to the lateral separations of two or more entities by transforming such separations into an increase in the potential energy stored within such tensioning mechanisms, the potential energy of which is released in the process of restoring the original separations and/or positions of the displaced buoyant devices. un u n

FLOATING POWER GENERATION SYSTEM

NºPublicación:  AU2025210149A1 02/07/2026
Solicitante: 
KUNESH ROBERT J
KUNESH, Robert J
AU_2025210149_PA

Resumen de: AU2025210149A1

A floating power generation system incorporates a scotch yoke mechanism that is coupled with an electrical generator to produce power and is actuated by a fin assembly having a plurality of fins that move or pivot from a first pivot position to a second pivot position. The fins are coupled with the yoke of the scotch yoke by a cable to move the yoke back and forth in a reciprocating motion. As the fins move back and forth from one side of the water flow direction to the other, the yoke reciprocates and turns the flywheel to produce electrical power. The floating power generation system may employ two fin assemblies, wherein a first fin assembly directs water through the plurality of first fins into the plurality of second fins of the second fin assembly to force the second fins in an opposing pivot orientation from said first fins.

FLOATING PLATFORM FOR WIND TURBINE

NºPublicación:  WO2026130731A1 25/06/2026
Solicitante: 
XELLANTEC GMBH [DE]
XELLANTEC GMBH

Resumen de: WO2026130731A1

The invention relates to a floating platform (10) for supporting a tower (1) with a wind turbine (2) for harnessing wind energy. The floating platform (10) comprises a floating element (11) and an adaptive mooring system for automatically achieving a substantially vertical alignment of the tower (1) at different wind speeds. The adaptive supporting system comprises a mooring rope (21) coupled to the floating platform (10) and configured for fixing said mooring rope (21) via a ground anchor (50) to the ground (101), a cantilever beam (25) with a proximal end (24) attached to the floating platform (10) and a distal end (26), the mooring rope (21) being coupled to the distal end (26), and a weight (22) coupled to said mooring rope (21) and being positioned below the cantilever beam (25), wherein a variable position of the weight (22) with respect to the cantilever beam (25) supports a compensation of forces from the wind acting on the wind turbine (2) such that the orientation of the tower (1) is substantially vertical.

FLOATING STRUCTURE AND OFFSHORE WIND POWER GENERATION APPARATUS COMPRISING SAME

Nº publicación: WO2026135204A1 25/06/2026

Solicitante:

POSCO CO LTD [KR]
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Resumen de: WO2026135204A1

A floating structure is disclosed. A floating structure according to an embodiment of the present invention comprises: a center column to which a tower including an offshore wind power nacelle is connected; pontoons each having a plurality of sides and connected to the center column; outer columns each arranged between the plurality of sides of the pontoons; and connection members connecting the pontoons and the center column, wherein the pontoon comprises concrete portions, in the plurality of sides, connected to the outer columns and forming both end portions of the plurality of sides, and a steel material portion disposed between the concrete portions at both end portions of the plurality of sides and connecting the concrete portions arranged at the both end portions of the plurality of sides. The connection member is coupled to the steel material portion such that the pontoons can be connected to the center column.

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