A structure having a quadrilateral base; at least three or more support pillars that is configured to form the quadrilateral base; a landing pad; an elevator shaft; a waiting platform operably arranged at a top of the elevator shaft; a staircase, the staircase is operably arranged between the waiting platform and the landing pad that is operable for allowing a passenger to climb from the waiting platform to the landing pad; a plurality of support beams operably arranged to support the waiting platform, staircase, and/or landing pad; a base guardrail operably arranged to protect the quadrilateral base; and an inlet passage arranged at a base of the elevator shaft, wherein the structure is a freestanding landing helipad platform that is configured to be operable for vertical takeoff and landing of at least one of a flying car and flying car taxi services.

A vertical column has a column body extending between a first end and a second end. The column body includes a main body, a conical portion extending from the main body, and a tip portion extending from the conical portion. The vertical column includes a first helical structure extending around a portion of the main body and a second helical structure extending around a portion the tip portion.

A vertical column has a column body extending between a first end and a second end. The column body includes a main body, a conical portion extending from the main body, and a tip portion extending from the conical portion. The vertical column includes a first helical structure extending around a portion of the main body and a second helical structure extending around a portion the tip portion.

An enclosure with a vortex-induced vibration suppression function and a method for suppressing vortex-induced vibration are provided. The enclosure is provided with suction through holes extending through a peripheral wall thereof, the suction through holes are distributed in a circumferential direction of the enclosure. The enclosure is further provided with a suction apparatus, and the suction apparatus can perform suctioning to the suction through holes from outside to inside, to restrain a boundary layer at an outer surface of the enclosure from being detached from the outer surface. By the suctioning, the boundary layer can be “adsorbed” on the outer surface of the tower, thereby restraining or directly preventing the boundary layer from being detached from the outer surface of the tower, and reducing or eliminating the cause of the vertex-induced vibration.

A tower segment, in particular for a tower of a wind turbine, a wind turbine, and a method for manufacturing a tower segment is provided. A tower segment, in particular for a tower of a wind turbine, comprising a casing segment with an inner casing surface, an outer casing surface and a cutout for a door, wherein the inner casing surface has a first inner reinforcing portion and/or the outer casing surface has an outer reinforcing portion, wherein the inner reinforcing portion and/or the outer reinforcing portion adjoin the cutout, and the inner reinforcing portion has an inner reinforcing plate and/or the outer reinforcing portion has an outer reinforcing plate.

A tower segment, in particular for a tower of a wind turbine, a wind turbine, and a method for manufacturing a tower segment is provided. A tower segment, in particular for a tower of a wind turbine, comprising a casing segment with an inner casing surface, an outer casing surface and a cutout for a door, wherein the inner casing surface has a first inner reinforcing portion and/or the outer casing surface has an outer reinforcing portion, wherein the inner reinforcing portion and/or the outer reinforcing portion adjoin the cutout, and the inner reinforcing portion has an inner reinforcing plate and/or the outer reinforcing portion has an outer reinforcing plate.

A tower structure of a pre-heating tower of a plant for thermally processing minerals may include a plurality of support beams that extend vertically and parallel to one another and are connected to one another via cross beams. The tower structure may further include a plurality of mounting positions, each mounting position for fitting a platform to the tower structure. A cross-sectional profile of at least two of the support beams changes over a height of the tower structure. Further, at least two adjacent support beams may be configured such that there is a greater amount of space between the beams at a bottom end region of the adjacent support beams than at a region above the bottom end region.

A base flange assembly for a lattice section of a tower includes a foot having an aperture; a leg welded to the foot, an axis defined between a center of the aperture and a center of the leg. An inner gusset is welded to the foot and the leg along the axis; and an outer gusset is welded to the foot and the leg at an angle with respect to the axis.

A base flange assembly for a lattice section of a tower includes a foot having an aperture; a leg welded to the foot, an axis defined between a center of the aperture and a center of the leg. An inner gusset is welded to the foot and the leg along the axis; and an outer gusset is welded to the foot and the leg at an angle with respect to the axis.

The present disclosure discloses a substation frame comprising: a supporting assembly comprising at least two supporting posts arranged at intervals, the at least two supporting posts comprising one side supporting post at each end; a beam assembly comprising a beam provided between every two adjacent supporting posts; and a side wire attaching assembly provided on at least one side supporting post and positioned on a side of the side supporting post facing away from the beam.