Prestress FRP System is refers to the pre-imposed stress on the structure before the component has been applied. Prestress strength is generally the opposite of stress caused by load.

There are many examples in daily life.

For example:

1)The tub (barrel)

The hoop is applied to the wood chip to pre press the stress to counteract the tensile stress produced by the water.

2)Move the book

The pre stress is applied by hand to counteract the bending tensile stress produced by the self weight of the book.

so eas