High, self-supporting smokestack or tower of precast...

Details High, self-supporting smokestack or tower of precast... High, self-supporting smokestack or tower of precast...

E - Fixed Constructions

04

F

72/108

E04F 17/02 (2006.01) E04H 12/28 (2006.01)

Patent

CA 1244259

Abstract A high, self-supporting smokestack or tower having a structure constructed by stacking precast reinforced con- crete sections one upon the other, the cross-sectional area of the structure being larger at the bottom than at the top and concentrated reinforcement being provided along the length of the structure to bear the horizontal forces acting upon the smokestack or tower. The structure exhibits ribs provided with concentrated reinforcement and extending longitudinally on the outside of the structure at least along its lower portion, the radial extent of these ribs increasing from the top to the bottom at least so as to correspond essentially to the bending moment progression resulting from the horizontal stress. A mould device for producing precast reinforced concrete parts for such smoke- stacks or towers, in which mould sections are provided which are radially adjustable for fashioning the front sur- faces of the ribs.

469083

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