摘要:
The invention relates to a pontoon bridge (1), which comprises a plurality of pontoons (12) for supporting a bridge support (13) and comprises a stabilizing structure (2) having two supporting cables (3), the anchoring points (4) of each supporting cable being anchored to opposite banks (5) of a body of water and being arranged below a water surface (6), wherein at least one supporting cable (3) has an approximately parabolic course in relation to the bridge support (13) in a plan view and the supporting cables (3) being connected to each other by means of connecting cables (7, 70). At least one supporting cable (3) is connected to a buoyant body (8) by means of at least one supporting element (9), and the buoyant body (8) is arranged at least partially above the water surface (6).
摘要:
The invention relates to a method for producing a tower construction (1) from reinforced concrete having at least one cavity (35) extending in the longitudinal direction in the interior of the tower construction, wherein double wall elements (2), each comprising an outer plate (3) and an inner plate (4) in a vertical or tilted position so as to form vertical outer gaps (5) and vertical inner gaps (6) between the outer plates (3) and the inner plates (4), are erected along a circumference (12) of the tower construction (1) essentially first, which double wall elements) are secured against falling over in the position in which the double wall elements are erected next to each other, then a reinforcement (9) is installed in the region of the vertical outer gaps (5) between the outer plates (3) and of the vertical inner gaps (6) between the inner plates, and thereafter the vertical outer gaps and vertical inner gaps between the double wall elements are suitably closed and the double wall elements are filled with filling concrete (23). This is repeated until a desired total height of the tower construction (1) is reached.
摘要:
The method for the production of a doubly spatially curved shell (1) comprises: placing a first sheet (5) and a second sheet (6) on a base surface (2), which sheets are tightly connected to one another at their edges; placing wedge-shaped pneumatic means (7) on the second sheet (6); inflating the wedge-shaped pneumatic means (7); producing shell segments (8) by laying a reinforcement and introducing a pourable, curing building material (9) between the wedge-shaped pneumatic means (7); arranging at least one flexible tension member (11) in the circumferential direction at the outer edge (4) of the base surface (2); mounting a load on the shell segments (8) along the outer edge (4); curving and raising the shell segments (8) by blowing in air between the first sheet (5) and the second sheet (6) with tensile loading of the tension member (11) in the circumferential direction; filling the joints (12) between the shell segments (8) with a curing casting material (13).