Ingenior F. Selmer A/s

Kvaerner Brug A/s

Ingenior F. Selmar A/s

Ingenior F. Selmer A/s Norway

Tomas Berge Einstabland

Torlak Opedal

Olav Olsen

Nicolay G Berg

Gunnar Aas

Jan Stageboe

Knut Bonke

Ivar Oftebro

Slipforming means intended for slipforming inclined, hollow columns of reinforced concrete, comprising a slipform platform (14) including the form work (28, 29), which is supported by and may be lifted/lowered by means of a climbing rod system (12) which is fixed to the already cast, cured portions of the column (11). The form work is by means of a number of yokes (26,27) suspended from the slipform platform and comprises inner and outer formsheets (28,29) extending in circumferential direction. The yokes are adjustable in radial direction with respect to the slipform platform while the form sheets are adjustable in tangential or circumferential direction with respect to each other. One of the form work walls is radially adjustable with respect to the other. The slipforming means is intended for slipforming hollow, inclined columns having increasing and/or decreasing diameter.

Offshore platform structure having at least a superstructure and a

A method of building a sea wave power plant of the type in which the power plant (11) must be installed near a steep rock wall (1). The installation site is determined inside the rock formation (F), at a distance from the open rock surface (1). A power plant well which is also serving as a building site (3) is blasted out from the rock formation with a natural rock wall (4) separating the well from the sea. After the plant is completed, the well is filled with water and the partition wall is removed by blasting, opening the well to the sea.

Method for the building of sea wave power plants

Floating platform structure comprising a deck section and a support section supporting the deck section. The floating structure is manufactured in the shape of a trussed girder having an upper chord and a lower chord which are connected with one another by girder members and having a vertical cross section substantially in the shape of a triangle having an apex pointing downwardly, the deck section of the platform structure being provided by the upper chords of the girder. The buoyancy means of the platform structure are found in the upper portions of the girder members and the ballast means in the lower portions of the girder members and optionally in the lower girder chord. The support section comprises groups of at least three girder members each, said members converging from the deck downwardly towards a common point and being fixedly connected with one another in a junction point in or adjacent the convergency point. In an advantageous embodiment of the invention each group of girder members comprises four members presenting an upside down orientated pyramid, and two of the girder members in each pyramid meet two corresponding girder members of an adjacent girder member pyramid or group at the deck section.

Floating platform structure

The invention relates to an open frame offshore foundation structure of concrete to be firmly but removably located on the sea floor. The structure comprises a lower set of hollow columns inclined towards each other in direction upwards, a ballastable intertie box structure rigidly receiving the tops of said inclined columns and an upper vertical column unit, the lower ends of which are rigidly connected to the intertie box structure and the upper end of which shall support a working platform in position above sea level.

Offshore foundation structure

Apparatus for moulding inclined, free-standing hollow columns of concrete by means of sliding formwork is provided. Initially, there is formed a base structure, and a bottom section of the column to be formed is anchored thereto. In the bottom section of the column is positioned a combined support- and guiding means which is displaceably positioned firmly against the inside wall of the column and which furthermore is liftably arranged, in a known fashion such as by being biased to the moulded column section by means of lift-jacks or the like. The support- and guiding means may be forcibly adjustable in the lateral direction during the continuous moulding of the column to control and if necessary adjust the direction of the formwork and thereby the column wall during the moulding of the same.

Growing community of inventors

Asker, Norway

Tomas Berge Einstabland