METHOD OF AND MEANS FOR PRODUCING REINFORCED RIBBED STRUCTURES

摘要

The method of and means for reinforcing a structure formed by interengaging the edges of ribbed strip means (1) formed of a plastics material to form a helically wound tube or a panel, the strip means (1) comprising a plurality of ribs (2) spaced apart and upstanding from a base (24), characterised by engaging on the strip means (1) a non-planar reinforcing member (10), and locking the reinforcing member (10) to the strip means to form an attached strength member particularly to attain lateral stability of the ribs.