Radial Force Distribution from Hoop Tendons

This sketch shows the basic principle of circular structure strengthening with hoop tendons and does not take into account all the loads and parameters that should be included in the design of a strengthening solution. For more information, please contact DSI USA.

T = Tension in Hoop Tendon
Pr = Radial Force on Concrete Pipe
R = Outside Radius of Concrete Pipe
D = Outside Diameter of Concrete Pipe

Pr * D = 2T
Pr * D/2 = T
Pr * R = T

Pr =T/R