Process and device for the construction of tall, hollow, towerlike structures of two hundred meters height and more, specially wind generator towers

摘要

Coaxial shells (10,11) act as the inner and outer walls of formers for the concrete ring parts and include reinforcements (55,56,57,58), spacers and connectors. Individual shell parts are assembled into an annular shell on site and the shells placed one inside the other. Coaxial shells (10,11) act as the inner and outer walls of formers for the concrete ring parts and include reinforcements (55,56,57,58), spacers and connectors. Individual shell parts are assembled into an annular shell on site and the shells placed one inside the other. Concrete is poured into the cavity (13) between the shells, a further double shell is constructed on top and connections made with the previous shell. Concrete casting and shell building are then repeated to build the tower. An Independent claim is made for the tower construction equipment including inner (11) and outer (10) shell sections each comprising a number of sectors (14,15). Preferred Features: Tension members are introduced between inner and outer shells around their circumference after a given concrete setting time and permanently tensioned against the ground. Inner and outer shell ring sections are positively connected to each other at specific points. Annular (57,58) and longitudinal reinforcements (55,56) of one shell section are connected to those of the next section by wires or clamps. Spacers maintain a constant distance between shells. Flanges enable individual shell sectors of both outer and inner shells to be coaxially aligned. Adjoining edges of shell ring sectors have inward facing projections, shoulders, supports or profiles enabling them to be positively connected by 3 meter long clasps. Each sector of the inner shell has parallel or spiral reinforcements on the outer side. Inner and outer shells may remain with the structure or be removed.