The invention relates to a method of erecting a tower such as a wind turbine tower tethered by a number of cables where each of the cables extend between the tower and an anchoring element on an anchor block. The method comprises attaching at least some of the tethering cables to the tower, detachably fastening a motorized winch on an anchor block and connecting the wire of the winch to the end of a tethering cable. The winch is then operated to wind up the wire of the winch pulling the cable end towards the anchor block and into position for fastening the cable end to the anchoring element, where the cable end is then fastened to the anchoring element while held in position by the winch. The invention further relates to the use of a motorized winch to connect a cable to an anchor block when erecting a tower tethered by a number of cables as mentioned above.

A wind turbine tower includes a plurality of tower sections axially aligned and connected together. Each tower section includes an inner wall having a tapered cylindrical shape concentrically positioned within an outer wall having a tapered cylindrical shape. An annular space is defined between the inner wall and the outer wall, and a layer of concrete is disposed within the annular space. A plurality of post-tensioning cables extend longitudinally within the annular space or outside the outer wall, such that a first one of the tower sections is connected to a second one of the tower sections by a plurality of the post-tensioning cables.

A technique for reinforcing a telecommunication tower includes attaching a temporary structure to a vertical portion of the tower, transferring antenna equipment from the vertical portion of the tower to the temporary structure, and reinforcing the vertical portion of the tower while the transferred antenna equipment continues to operate. Once the vertical portion of the tower has been reinforced, the antenna equipment is transferred from the temporary structure back to the vertical portion of the tower. The temporary structure may then be moved to any other vertical portion of the tower, where the above acts may be repeated.

A technique for reinforcing a telecommunication tower includes attaching a temporary structure to a vertical portion of the tower, transferring antenna equipment from the vertical portion of the tower to the temporary structure, and reinforcing the vertical portion of the tower while the transferred antenna equipment continues to operate. Once the vertical portion of the tower has been reinforced, the antenna equipment is transferred from the temporary structure back to the vertical portion of the tower. The temporary structure may then be moved to any other vertical portion of the tower, where the above acts may be repeated.

An apparatus for helicopter erection of an emergency restoration structure, and a method of helicopter erection of an emergency restoration structure using the same are provided. An apparatus for helicopter erection of an emergency restoration structure includes a first alignment frame portion attachable to a first section of an emergency restoration structure; a second alignment frame portion attachable to a second section of the emergency restoration structure; an alignment portion arranged on at least one of the first alignment frame portion and the second alignment frame portion; and a hook configured to receive a portion of at least one of the first alignment frame portion and the second alignment frame portion.

The present invention refers to a wind turbine tower and a respective foundation base, comprising a central column with a central column foundation, upper tensile structural elements with upper ends attached to a tensile structure element bearing portion of the central column and tensile structural element foundations around the central column foundation. The structural system is characterized in that each lower end of the upper tensile structural elements is attached to a respective compressive structural element that connects said lower end of the respective upper tensile structural element with a compressive structural element bearing portion of the central column and that each lower end of the upper tensile structural elements is attached to a respective lower tensile structural element that connects said lower end of the respective upper tensile structural element with one of the tensile structural element foundations.

The present invention refers to a wind turbine tower and a respective foundation base, comprising a central column with a central column foundation, upper tensile structural elements with upper ends attached to a tensile structure element bearing portion of the central column and tensile structural element foundations around the central column foundation. The structural system is characterized in that each lower end of the upper tensile structural elements is attached to a respective compressive structural element that connects said lower end of the respective upper tensile structural element with a compressive structural element bearing portion of the central column and that each lower end of the upper tensile structural elements is attached to a respective lower tensile structural element that connects said lower end of the respective upper tensile structural element with one of the tensile structural element foundations.

The present patent relates to a kind of movable form, sliding forms (02) for molding concrete towers of a large variety of shapes, in particular in wind farms, communication towers, the forms moving vertically from the beginning to the end of the construction, in a semi-automated or automated system for uninterrupted and continuous construction of the tower. The movable/sliding form (02) is vertically moved in that a sliding cover (08) with upper and lower rollers (06) is used, as well as a honed metal plate (07) forming the body, connected to a kind of fork (03) which maintains the thickness of the concrete wall, together with cables and ties joined to the metal tower (01), which by being moved by a rack-and-pinion system make it possible to build the tower.

An apparatus is for performing a part of an operation to install a tower for a wind turbine, wherein the wind turbine has a tower, wherein the apparatus has a travelling car for travelling up and down along the tower of the wind turbine and for carrying an item to be installed as part of the wind turbine, wherein the travelling car has a device for balancing the travelling car, and wherein the device for balancing the travelling car has a weight configured to be movably connected to the travelling car i) for allowing keeping the travelling car balanced under exposure to a force or ii) for avoiding, correcting or reducing a shift in a centre of gravity of the travelling car. Further is disclosed a method of balancing a travelling car for an apparatus for performing at least a part of an operation to install a wind turbine.

In an aspect, the present disclosure describes a method comprising using at least one robot to fully autonomously position and assemble at least one solar module and its supporting structure at a sensed geolocation without aid from a user.