Abstract: The subject matter relates to a method and an apparatus for vibrating-in a foundation into a building ground by initiating vibrations generated by means of a vibrating device attached to the foundation, the vibrations causing liquefaction of the building ground so that the foundation penetrates the building ground.

Abstract: The application relates to a method for assessing the load bearing capacity of an inserted pile, including: applying, by a vibrator device arranged at the inserted pile, the inserted pile with a measuring pulse string during at least one vibration time period, detecting, by at least one detection module, motion data of the inserted pile caused by the measuring pulse string during a measuring time period, determining at least one downward motion data set from the detected motion data; and evaluating the downward motion data set such that a load bearing capacity criterion is determined.

Abstract: Method for manufacturing a connection between two tube segments of a tower-like structure, in particular a wind power plant, in which a first tube segment is pushed into a second tube segment at the end face and an annular space is formed between the tube segments, two at least partially circumferential joining elements spaced apart from one another in the longitudinal direction of the tube segments are arranged in the annular space, the joining elements being arranged on an outer wall and/or on an inner wall of one of the tube segments, the tube segments are coupled together via the joining elements, and a mechanical parameter of the mechanical coupling between the tube segments is detected via at least one sensor on at least one of the tube segments, the annular gap being filled with casting compound after initial installation of the structure based on the mechanical parameter.

Abstract: A foundation for an offshore structure, more particularly an offshore wind turbine structure, comprising: at least one tower-like foundation structure with a circumferential foundation wall extending in the longitudinal direction, the foundation wall being delimited at the lower end by a lower-end end face, the foundation wall being formed from a mineral construction material; and at least one binding element, which is formed from a metal material and is arranged on the lower-end end face, the length of the binding element from the lower-end end face to a lower end of the binding element being at least 0.5 m.

Abstract: The application relates to a floatable foundation structure for an offshore structure including at least one floating body arrangement and at least one mass arrangement. The mass arrangement is connected to the floating body arrangement by at least one holding rope in a coupling state. Further, in the coupling state for coupling the floating body arrangement to the mass arrangement, a coupling section of the holding rope is arcuately guided around a contact section of the mass arrangement.

Abstract: An offshore wind energy system comprising a foundation having a first hollow structural element with a longitudinally extending, circumferential first wall. A cable bushing penetrates through the first wall and is arranged in the first wall. At least one cable guide arrangement extends in a radial direction and is arranged at an outer shell surface of the first wall of the first hollow structural element. The cable guide arrangement is configured to guide a submarine cable exiting the cable bushing from the cable bushing to a submarine bottom surface.

Abstract: A wind turbine foundation structure comprising a hollow structural element with a circumferential wall extending in the longitudinal direction. A first cable feed-through breaking through the wall is arranged in the wall. A transition piece with an overlap region projects into the hollow structural element and a transition region projects out of the hollow structural element at the end face. A circumferential wall extends in the longitudinal direction. A second cable feed-through which breaks through the wall is arranged in the overlap region in the wall. The first and the second cable feed-through bear against one another in an at least partially overlapping manner in the assembled state of the hollow structural element and the transition piece.

Abstract: A power cable arrangement, in particular marine power cable, for offshore wind farms, including at least one cable drum device with a cable drum. The power cable arrangement includes at least one power cable wound on the cable drum with at least one cable end configured to pre-installing at a cable connection of a wind energy device. The power cable is wound on the cable drum such that a first section of the power cable is wound inversely to a further section of the power cable.

Abstract: The present disclosure relates to a foundation profile for an offshore structure. The foundation profile includes a profile end portion, which is arranged in an offshore subsoil in the intended state of the foundation profile. Further, at least one elongated hollow body is arranged at the profile end portion in the intended state. The elongated hollow body is configured to receive a swellable material.

Abstract: The application relates to a floatable foundation structure for an offshore structure including at least one floating body arrangement and at least one mass arrangement. The mass arrangement is connected to the floating body arrangement by at least one holding rope in a coupling state. Further, in the coupling state for coupling the floating body arrangement to the mass arrangement, a coupling section of the holding rope is arcuately guided around a contact section of the mass arrangement.

Abstract: A wind turbine foundation structure comprising a hollow structural member having a longitudinally extending circumferential wall, the wall being bounded at the top by a top end face and bounded at the bottom by a bottom end face, wherein the wall is formed from a mineral building material and in that a wall thickness of the wall tapers from the top end face towards the bottom end face.

Abstract: Supporting structure, in particular for a wind power plant, having at least two sub-segments which are at least partially connected to one another and are respectively formed from a metal plate having a longitudinal extent and a width extent. The longitudinal extent being greater than the width extent, and the sub-segments each having longitudinal edges extending in longitudinal extent and being connected to one another at mutually abutting joint surfaces along the longitudinal edges by a welded joint respectively. The sub-segments respectively have end edges extending in width, the sub-segments being bent along their end edges respectively. The respective welded joint has in sections a thickness which is smaller than a wall thickness of the metal plate and in sections a thickness which corresponds at least to the wall thickness of the metal plate.

Abstract: In particular, a foundation for an offshore structure is disclosed. The foundation includes: a tower having an anchoring section which is anchorable in the seabed and a connection section arranged at the opposite end of the tower. An electricity generation device arrangable above the water surface is connectable with the connection section of the tower. A natural frequency of the offshore structure is below an excitation from a single revolution number 1P of at least one exciting component. Further disclosed is an offshore structure.

Abstract: The subject matter relates to a method and an apparatus for vibrating-in a foundation into a building ground by initiating vibrations generated by means of a vibrating device attached to the foundation, the vibrations causing liquefaction of the building ground so that the foundation penetrates the building ground.

Abstract: A power cable arrangement, in particular marine power cable, for offshore wind farms, including at least one cable drum device with a cable drum. The power cable arrangement includes at least one power cable wound on the cable drum with at least one cable end configured to pre-installing at a cable connection of a wind energy device. The power cable is wound on the cable drum such that a first section of the power cable is wound inversely to a further section of the power cable.

Abstract: The invention relates to a method for forming a connection between two pipe segments of different widths, preferably of a tower-like structure, in particular of a wind turbine.

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: Supporting structure, in particular for a wind power plant, having at least two sub-segments which are at least partially connected to one another and are respectively formed from a metal plate having a longitudinal extent and a width extent. The longitudinal extent being greater than the width extent, and the sub-segments each having longitudinal edges extending in longitudinal extent and being connected to one another at mutually abutting joint surfaces along the longitudinal edges by a welded joint respectively. The sub-segments respectively have end edges extending in width, the sub-segments being bent along their end edges respectively. The respective welded joint has in sections a thickness which is smaller than a wall thickness of the metal plate and in sections a thickness which corresponds at least to the wall thickness of the metal plate.

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 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.