Tubular building structure with hingedly connected platform segment

The present invention relates to a tubular building structure or tower 10 comprising superposed tube sections 12. At least some of the tube sections 12 are provided with platform segments 28 that are hinge-connected and foldable from a collapsed position in which they are positioned close to the tube sections 12 to a position of use in which they extend radially inwardly into the tubular building structure 10 in the mounted position of the tube sections 12. In particular the invention relates to a tube segment 16 adapted to be interconnected with other tube segments 16 to form a tubular building structure or tower 10 comprising superposed tube sections 12, each tube section being formed by interconnected axially extending tube segments 16. The tube segment 6 is provided with a platform segment 28 that is hinge-connected and foldable from a collapsed position in which it is positioned close to the tube segment 16 to 1 a position of use in which it extends radially inwardly into the tubular building structure 10 in the mounted position of the tube segments 16. The tube segment 6 may comprise flanges 17 along each side of opposite longitudinal sides of the tube segment 16 for interconnection with other tube segments 16 via registering holes in the flanges 17. Furthermore, the platform segment 28 may be hinge-20 connected to such flanges 17. The invention further relates to a method of erecting a tubular building structure 10 comprising such tube segments 16.