The present disclosure describes monopole platform assembly. The platform assembly includes a frame, the frame including an elongate, hollow main support member of rectangular cross-section, and a plurality of elongate, hollow auxiliary support members of rectangular cross-section attached orthogonally to the main support member; a mounting plate coupled to an end of the main support member; at least two grating edge members coupled to the auxiliary support members; and a grating, the grating being supported by the two grating edge members, the auxiliary support members, and the main support member. The opposing ends of each auxiliary support member extend a distance outwardly passed the grating edge members such that the extended ends of the auxiliary support members are positioned to support a horizontal pipe member. The extended ends of the auxiliary support members each include a feature configured to enable fixing of the horizontal pipe member thereto. Additional platform assemblies are described herein.

A temporary working platform for removable attachment to a column of an offshore structure. The platform comprises a frame for carrying a working structure such as a working surface. Further, the platform comprises a mounting mechanism for releasably mounting the working platform to said column, from a side of the column. The mounting mechanism may include a clamping mechanism supporting the frame. The clamping mechanism may be arranged for at least partially surrounding a column of an offshore structure and for releasably clamping said column.

An apparatus includes a first platform, a second platform disposed above the first platform, a scaffolding connecting the first and second platforms including an upper support beam, a middle support beam, and a lower support beam, and a cable attached to the upper support beam. The lower support beam supports the first platform. The middle support beam supports the second platform. The upper support beam is disposed above the second platform.

A blade access arrangement for a rotor blade of a wind power plant is described, the arrangement including a platform (1) having at least two sub-platforms (3, 4, 5, 6) which are moveably connected to each other by means of a connecting arrangement. In such a platform the sub-platforms should keep a predetermined orientation to the rotor blade. To this end the connection arrangement comprises at least two connectors (9, 10), the connectors (9, 10) having the same length and at least at their ends the same distance to each other.

The present disclosure relates to a common tower configured to be erected adjacent a building structure into construction. The tower comprises spaced apart columns, made of vertically aligned column hollow sections, spacedly and substantially vertically positioned adjacent the building structure, and vertically spaced apart flooring structures releasably and slidably supported by the spaced apart columns using a plurality of sliders. Each flooring structure is being capable of vertical displacement when supported by the spaced apart columns. The tower further comprises an anchoring system adapted to securely engage with the building structure to maintain the spaced apart columns substantially upright, as well as protection structures adapted to surround the flooring structures. A safe and easy erection of the tower using a common tower assembly is described.

An arrangement for overcoming heights or vertical distances, such as, in particular, high-voltage towers, towers for wind installations, buildings, high-bay warehouses, etc., has a longitudinally extended, rail-like profile (7) or guide member, and at least one portable lift element which is releasably fastenable to the profile, consisting of a driving part (3) which is movable up and down along the profile or guide member and a platform (5) for receiving at least one person or loads.

According to an example aspect of the present invention, there is provided a scaffolding arrangement to be attached to a deck structure, comprising a set of aims (2) including a carrier beam (5) for carrying the working levels and support structures needed in work, an attachment frame (1) for attaching the set of arms to the upper surface of the deck structure and platforms (103, 104, 105) for forming working levels.

The disclosure relates to a platform board assembly defining a front, a rear, and two sides and having: a plank having a free end towards the front and a fixed end towards the rear; a T-plate having a bottom extension and a top extension, wherein the bottom extension of the T-plate is connected to the fixed end of the plank; a vertical support member wherein the vertical support member is connected to the top extension of the T-plate; at least one ratchet stop mounted on a first side of the platform board assembly, wherein the ratchet stop is includes: a spool; a ratchet wheel rotatable about the spool; and a pawl configured to engage and disengage with the ratchet wheel; and a flexible connector engaged with the spool.

A plurality of sliding rails and a frame structure comprising a plurality of frame elements configured to be arranged at least partly circumferentially around a tower structure. Each frame element is slidably connected to at least one of the sliding rails, and the frame elements and the sliding rails are interconnected to form a scissor structure. An upwardly directed lifting force applied by a hoisting mechanism at connecting points at or near positions where the frame elements are connected to the sliding rails, in combination with gravity working on the frame structure, causes the frame elements to slide along the sliding rails, thereby causing the scissor structure to contract or expand to adjust a diameter of the frame structure to an outer diameter of the tower structure having the apparatus mounted thereon.

In order to provide an improved and cost-efficient method for performing an exchange of up-tower main components on an off-shore wind turbine a method is disclosed in during which a non-permanent service platform is temporarily coupled to a wind turbine tower lower section. In addition, a wind turbine structure and a system including such a structure are described, the wind turbine structure and the respective system being designed to allow performing the described method.