FRP COMPOSITE WRAPPED GROOVED-WALL LINING TUBULAR STRUCTURE, AND METHOD OF MANUFACTURING

摘要

A forming tube for forming and reinforcing a concrete column includes a tubular lining and a fiber-reinforced composite shell. The tubular lining is made from a first material, and has inner and outer tubular surfaces. The inner tubular surface has a plurality of ridge units displaced from one another in a direction of an axis. Each ridge unit has a plurality of ridges displaced from one another in a circumferential direction. The fiber-reinforced composite shell is made from a second material different from the first material, and is configured to enclose the outer tubular surface. The fiber-reinforced composite shell is formed by winding a prepreg filament on the outer tubular surface, followed by curing the prepreg filament.

主权项

1. A forming tube for forming and reinforcing a concrete column, comprising:
a tubular lining made from a first material, configured to extend along an axis to terminate at first and second peripheral ends, and having
an inner tubular surface including a plurality of ridge units displaced from one another in a direction of the axis, each of said ridge units including a plurality of ridges displaced from one another in a circumferential direction, andan outer tubular surface opposite to said inner tubular surface in radial directions; and a fiber-reinforced composite shell which is made from a second material different from said first material, and which is configured to enclose said outer tubular surface, said fiber-reinforced composite shell being formed by winding a prepreg filament on said outer tubular surface, followed by curing the prepreg filament.