Abstract: The invention relates to a support structure, in particular for a wind turbine, having at least two segments, which are joined to one another such that their longitudinal axes extend substantially collinearly to one another. At least one of the segments is a pipe section, which has at least two mutually facing abutment surfaces that are joined to one another, at least in parts. A support structure is provided that is producible in less time and is more cost-effective because the join between the abutment surfaces involves at least one welded join, the thickness of the welding join being less than the wall thickness of the pipe section, and/or the join between the abutment surfaces involves at least one retaining clip.

Abstract: An offshore wind turbine, having a supporting structure, having a nacelle, having a rotor, having an interior space, having at least one access opening, and having a means of ascent, such as a ladder, a staircase or the like, wherein the supporting structure has a tower and a foundation structure, wherein the tower supports the nacelle and the rotor, wherein the access opening is configured as an access for people to the interior space, wherein the means of ascent is arranged in the interior space, wherein the means of ascent is assigned to the access opening, and wherein no external work platform is arranged between the foundation structure and the access opening, as viewed along a vertical extent of the supporting structure.

Abstract: A foundation for an offshore structure is disclosed. The foundation includes a tower having an anchoring portion anchored in the seabed and a connecting portion arranged at the opposite end. The foundation also includes a power generation system arranged above the water surface connected to the connecting portion of the tower. A natural frequency of the offshore structure lies below an excitation component one times the rotational frequency 1P of at least one exciting component. The foundation also includes at least one restoring element connected to the tower via one or more transition pieces. The restoring element is designed such that, in a skewed position of the tower, tensile and/or compressive forces can be transferred to the tower by means of the restoring element such that the tower can be straightened up.

Abstract: An offshore structure having a foundation structure, wherein the foundation structure has at least a first and a second profile, the first profile is designed as a pile and the second profile is designed as a pile sleeve, the second profile encloses the first profile over a penetration length, wherein an interspace is formed between the first and the second profile, the interspace has a casting compound filling over the total penetration length, shear elements are provided on the first and/or the second profile, the shear elements extend into the interspace and effect an axial load dissipation into the casting compound filling, the shear elements are provided only over a first partial length of the penetration length, the first partial length is between 65 and 90% of the total penetration length and a second partial length is free of shear elements, wherein the second partial length forms the upper length of the penetration length in the installed position.

Abstract: The invention relates to a method for subsequently expanding the electrical transmission capacity of an overhead-line pylon system as part of an electrical high-voltage network, which comprises at least two overhead-line pylons, wherein the line cables stretched between the overhead-line pylons have a total transmission capacity and a total line cross-section, wherein the method provides for an increase in the total transmission capacity between the overhead-line pylons by recabling and/or an increase in the load-bearing capacity of the overhead-line pylons.

Abstract: The invention relates to a method for constructing a foundation for a tower structure, comprising at least one structure-side connection profile in the form of a pipe segment. The method has the steps of providing a foundation pile with a diameter which differs from the diameter of the pipe segment, vibrating and/or ramming the foundation pile into a supporting substratum, aligning and fixing the pipe segment coaxially and concentrically to the foundation pile introduced into the substratum such that an annular space is formed between the pipe segment and the foundation pile, and filling the annular space with a curable casting compound.

Abstract: The invention relates to a lattice mast structure which comprises a plurality of supports which are designed as steel profiles and between which transverse and/or diagonal struts extend, wherein the lattice mast structure comprises at least one reinforcing bar, wherein the reinforcing bar extends in the longitudinal direction of a support, the reinforcing bar follows the course of the support, the reinforcing bar is connected to the support at at least two points which are remote from one another, with the result that the reinforcing bar forms a structural unit with said support with respect to the force flow and the reinforcing bar is designed as an at least two-part composite component which is formed as a structural unit consisting of an element which predominantly transfers tensile forces and an element which predominantly transfers compressive forces.

Abstract: An offshore wind turbine, having a supporting structure, having a nacelle, having a rotor, having an interior space, having at least one access opening, and having a means of ascent, such as a ladder, a staircase or the like, wherein the supporting structure has a tower and a foundation structure, wherein the tower supports the nacelle and the rotor, wherein the access opening is configured as an access for people to the interior space, wherein the means of ascent is arranged in the interior space, wherein the means of ascent is assigned to the access opening, and wherein no external work platform is arranged between the foundation structure and the access opening, as viewed along a vertical extent of the supporting structure.

Abstract: The invention relates to a method for subsequently expanding the electrical transmission capacity of an overhead-line pylon system as part of an electrical high-voltage network, which comprises at least two overhead-line pylons, wherein the line cables stretched between the overhead-line pylons have a total transmission capacity and a total line cross-section, wherein the method provides for an increase in the total transmission capacity between the overhead-line pylons by recabling and/or an increase in the load-bearing capacity of the overhead-line pylons.

Abstract: The invention relates to a heavy-duty upgrading method for rotor blades of existing wind turbines and to a plastic membrane used in the method according to the invention, wherein the rotor blades are covered and/or extended in that at least one fibre-reinforced or fabric-reinforced plastic membrane is fitted onto an outer surface of the original aerodynamic profile of the rotor blade being upgraded and the original contour of the rotor blade being upgraded is then joined to the upgraded rotor blade.

Abstract: The present invention discloses a transition piece (10) for connecting a first component (20) having at least three columns (21) to a tower-shaped second component (30), wherein the transition piece (10) can be arranged between the first component (20) and the second component (30) and comprises a connection device for connecting the second component 30. The transition piece (10) is characterized in that it has at least three curved elements (11), the respective legs (13) of which are connectable at least indirectly to the first component (20). Each curved element (11) can be brought into direct contact with the second component (30) by means of convex end sections (14) arranged between the respective legs (13). In this way, the convex end sections (14) of the curved elements (11) form a receiving region (15) of the transition piece (11) and the second component (30) can be inserted into this receiving region.

Abstract: The invention relates to a lattice mast structure which comprises a plurality of supports which are designed as steel profiles and between which transverse and/or diagonal struts extend, wherein the lattice mast structure comprises at least one reinforcing bar, wherein the reinforcing bar extends in the longitudinal direction of a support, the reinforcing bar follows the course of the support, the reinforcing bar is connected to the support at at least two points which are remote from one another, with the result that the reinforcing bar forms a structural unit with said support with respect to the force flow and the reinforcing bar is designed as an at least two-part composite component which is formed as a structural unit consisting of an element which predominantly transfers tensile forces and an element which predominantly transfers compressive forces.

Abstract: The present invention discloses a pylon system having at least two pylons to each of which at least one insulator is fitted, and having at least one first overhead-line conductor, suspended from each of the insulators, that is tensioned between the at least two pylons, characterized in that the pylon system comprises at least one second overhead-line conductor that is suspended from the respective insulators and is in direct electrical contact with the first overhead-line conductor at least in sections.

Abstract: The invention relates to a method for constructing a foundation for a tower structure, comprising at least one structure-side connection profile in the form of a pipe segment. The method has the steps of providing a foundation pile with a diameter which differs from the diameter of the pipe segment, vibrating and/or ramming the foundation pile into a supporting substratum, aligning and fixing the pipe segment coaxially and concentrically to the foundation pile introduced into the substratum such that an annular space is formed between the pipe segment and the foundation pile, and filling the annular space with a curable casting compound.

Abstract: A foundation system for the foundation of an offshore structure includes a monopile having an anchoring portion anchorable in a seabed and a connection portion disposed at the opposite end. A platform structure is connected directly to the connection portion of the monopile or indirectly via a transition piece. The platform structure is disposable above a water surface. The foundation system includes at least two stabilizing devices connected directly to the platform structure or indirectly to the platform structure via the transition piece. The stabilizing devices are attachable to the seabed such that tensile forces or compression forces are transmittable between the seabed and the platform structure. Securing points on the stabilizing devices, together with the connection portion of the monopile, define a plane having a horizontally extending component.

Abstract: The present invention discloses a transition piece (10) for connecting a first component (20) having at least three columns (21) to a tower-shaped second component (30), wherein the transition piece (10) can be arranged between the first component (20) and the second component (30) and comprises a connection device for connecting the second component 30. The transition piece (10) is characterized in that it has at least three curved elements (11), the respective legs (13) of which are connectable at least indirectly to the first component (20). Each curved element (11) can be brought into direct contact with the second component (30) by means of convex end sections (14) arranged between the respective legs (13). In this way, the convex end sections (14) of the curved elements (11) form a receiving region (15) of the transition piece (11) and the second component (30) can be inserted into this receiving region.

Abstract: A foundation system for the foundation of an offshore structure includes a monopile having an anchoring portion anchorable in a seabed and a connection portion disposed at the opposite end. A platform structure is connected directly to the connection portion of the monopile or indirectly via a transition piece. The platform structure is disposable above a water surface. The foundation system includes at least two stabilizing devices connected directly to the platform structure or indirectly to the platform structure via the transition piece. The stabilizing devices are attachable to the seabed such that tensile forces or compression forces are transmittable between the seabed and the platform structure. Securing points on the stabilizing devices, together with the connection portion of the monopile, define a plane having a horizontally extending component.

Abstract: The invention relates to a lattice mast (1) with an open framework structure of angled profiles (3), in particular an electricity pylon or telecommunications mast, comprising at least one or more cladding profiles (9a, 9b) which extend over at least part of the length of at least one angled profile (3), wherein at least one cladding profile has a curved incident-flow surface and forms a flow shielding of a wind-exposed edge of the angled profile (3), wherein the incident-flow surface is at least approximately spherically curved and has a flow resistance coefficient which is less than that of the unshielded angled profile (3).