Topside modules are fabricated at a production site using as a foundation for installation a gravity-based structure (GBS), which can stay afloat during water transportation. Modules fabrication includes: Stage I, fabrication of components; Stage II, fabrication of nodes from the components; Stage III, fabrication of sub-assemblies from the nodes; Stage IV, shotblasting and painting of assemblies; and Stage V, assembling modules from the assemblies. Then modules transportation, movement to their seats on the GBS and their integration include: Stage VI, moving the modules to an area near the dock using self-propelled vehicles. Stage VII, moving each module onto guides of a lifting system installed in a dry dock. Stage VIII, lifting each module until lifting system guides are connected with GBS top slab guides. Stage IX, moving each module to its seat on the GBS, installed on the GBS and integrated with other modules and the GBS.

A method of constructing and assembling a floating wind turbine platform includes constructing pre-stressed concrete sections of a floating wind turbine platform base, assembling the floating wind turbine platform base sections to form the base at a first location in a floating wind turbine platform assembly area, and moving the base to a second location in the floating wind turbine platform assembly area. Pre-stressed concrete sections of floating wind turbine platform columns are constructed, and the column sections are assembled to form a center column and a plurality of outer columns on the base to define a hull at the second location in the floating wind turbine platform assembly area. The hull is then moved to a third location in the floating wind turbine platform assembly area. Secondary structures are mounted on and within the hull, and the hull is moved to a fourth location in the floating wind turbine platform assembly area. A wind turbine tower is constructed on the center column, and a wind turbine is mounted on the wind turbine tower, thus defining the floating wind turbine platform. The floating wind turbine platform is then moved to a launch platform in a fifth location and launched into a body of water.

An installation for the load-out into the water of a heavy load located onshore, in particular a load constituted by a tripod- or tetrapod-type float.

The installation has at least two support structures that are independent of one another and can be moved on the respective paths, each of which being equipped with lifting means configured to be hooked to the load, each of these support structures being equipped with a counterweight.

The installation is configured to allow the lifting means of the support structures, when the load is positioned in the load-out area, to extend at least partially above the water in order to lower the load into it.

An installation for the load-out into the water of a heavy load located onshore, in particular a load constituted by a tripod- or tetrapod-type float.

The installation has at least two support structures that are independent of one another and can be moved on the respective paths, each of which being equipped with lifting means configured to be hooked to the load, each of these support structures being equipped with a counterweight.

The installation is configured to allow the lifting means of the support structures, when the load is positioned in the load-out area, to extend at least partially above the water in order to lower the load into it.

A method of transporting a first vessel having wind turbine components to an offshore installation vessel. The method includes (i) securing the first vessel to a second vessel using a first tow line attached to a front end (or bow) of the first vessel, and (ii) securing the first vessel to a third vessel using a second tow line attached to a back end (or stern) of the first vessel. The method further includes transporting the first vessel to the offshore installation vessel using the second vessel and the third vessel secured to the first vessel via the first and second tow lines, respectively. The method also includes securing the first vessel to the offshore installation vessel. The first vessel can include one or more fender walls. The first vessel can be secured to the offshore installation vessel using one or more mooring lines.

A method of transporting a first vessel having wind turbine components to an offshore installation vessel. The method includes (i) securing the first vessel to a second vessel using a first tow line attached to a front end (or bow) of the first vessel, and (ii) securing the first vessel to a third vessel using a second tow line attached to a back end (or stern) of the first vessel. The method further includes transporting the first vessel to the offshore installation vessel using the second vessel and the third vessel secured to the first vessel via the first and second tow lines, respectively. The method also includes securing the first vessel to the offshore installation vessel. The first vessel can include one or more fender walls. The first vessel can be secured to the offshore installation vessel using one or more mooring lines.

A method is disclosed. The method includes loading a plurality of vehicle components in a housed configuration in a container, transporting the container containing the plurality of vehicle components in the housed configuration to a location, unloading the plurality of vehicle components from the container and assembling the plurality of vehicle components into an assembled configuration of a vehicle, disposing the container on the assembled configuration of the vehicle, and transporting the container from the location to a next location on the assembled configuration of the vehicle, and disassembling the plurality of vehicle components and loading the plurality of vehicle components in the housed configuration in the container at the next location.

A method is disclosed. The method includes loading a plurality of vehicle components in a housed configuration in a container, transporting the container containing the plurality of vehicle components in the housed configuration to a location, unloading the plurality of vehicle components from the container and assembling the plurality of vehicle components into an assembled configuration of a vehicle, disposing the container on the assembled configuration of the vehicle, and transporting the container from the location to a next location on the assembled configuration of the vehicle, and disassembling the plurality of vehicle components and loading the plurality of vehicle components in the housed configuration in the container at the next location.

A modular barge has a plurality of barge sections. Each barge section has first and second connections on opposite sides of the barge body. The connections include top connectors adjacent to the top surface of the barge body, an insert or receiver adjacent to the bottom surface of the barge body, and an engagement profile disposed between the first top connector and the receiver that includes a lateral component. The first and second barge sections of the plurality of barge sections are connected by engaging the insert and receivers of the barge sections, engaging the engagement profiles of the first and second barge sections, and connecting the top connectors of the first and second barge section.

An arrangement (100) is provided for loading an elongated element (1500) onto a support surface (301) of a floating body such as a vessel (300). The arrangement (100) has a hoisting device (302) and one or more storage structures (201, 202, 203, 204), adapted for holding an individual elongated element (1500) in lying condition while being sea-fastened. At least one longitudinal and a transverse skidding system is provided, operable independently. The longitudinal and transverse skidding system each have one or more transport carts (401, 601) displaceable over the support surface (301) according to a path in longitudinal respectively transverse direction, and any of the transport carts (401, 601) are equipped with a support cradle (403, 611). The one or more support cradles of both the longitudinal and transverse skidding system are adapted to carry an elongated element extending in longitudinal direction.