Abstract: A super high-rise building (1) comprising a main support structure (10) of reinforced concrete, and a base (20; 20?; 20??) having at least four corners (13). The main support structure (10) is formed of at least two walls (11), each extending all the way between diametrically opposed external wall corners (13) of said base (20). Said two walls (11, 11) intersect each other, and at least an intermediate portion (14) of the respective wall (11) extends to an uppermost portion of said super high-rise building (1).

Abstract: Disclosed is a device for fastening two hulls to each other, one of the hulls usually being a motor hull and the other a cargo hull. The device includes a first pair of booms (1,2) extending essentially parallel to each other between the hulls (5,6) and at least one further boom, preferably one further pair of booms (3,4) extending, as seen from one side, crosswise in relation to the first pair of booms (1,2) so that all the booms (1,2; 3,4), seen from the side, constitute the diagonals of a quadrangle determined by the fastening points of the booms. Preferably, the booms are fastened to the hulls by means of transversal bars (8,9) mounted pivotably in horizontal planes on the hulls. At least two of the booms are preferably adjustable as to their length.