The invention discloses a fabric
reinforced concrete -
steel tube - FRP composite
pipe and a manufacturing method thereof. The composite
pipe comprises an FRP round
pipe, a thin-wall steel pipe and fabric
reinforced concrete, wherein the FRP circular pipe, the thin-wall steel pipe and the fabric
reinforced concrete are coaxially arranged from inside to outside, and fine-grain concrete is poured between the FRP round tube and the thin-wall
steel tube; and the outer surface of a joint is provided with a steel sleeve ring through a shear stud, and a sealing rubber
gasket is arranged below the steel sleeve ring. According to the fabric reinforced concrete -
steel tube -FRP composite pipe, an inner layer of the pipe adopts a resin
fiber reinforced material, and has the advantages of
corrosion resistance,
fatigue resistance, light weight and the like, the formed inner wall of the pipe is smooth, so that microorganisms are not grown, the water passing amount is large, the service life is long, and the later maintenance cost is reduced; due to the fact that the steel pipe is adopted in a middle interlayer, so that the composite pipe has higher pressure-
bearing capacity and greater rigidity; and the outer-layer fabric reinforced concrete has a further restriction effect on the inner steel tube and the FRP, so that the pressure-
bearing capacity and the
pressure resistance ability of thepipe are further enhanced; and moreover, the fabric reinforced concrete has good
corrosion resistance and impermeability, so that the service life of the pipe is longer.