"strengthened structure" is correct and usable in written English.
You can use it when referring to something that has been made stronger or more stable, like a physical structure or a system. For example, "The new reinforced beams will help to create a much more strengthened structure for the building."
Since the strengthened structure is statically indetermined, the unknown force in the truss column is calculated from a deflection equation.
However, the main drawback in using FRP for such purposes is the reduction in ductility that the strengthened structure displays after strengthening.
The requirement for any embedded sensor for monitoring FRP strengthened concrete members is that the sensor should not be detrimental to the operational requirement of the strengthened structure.
In reinforced concrete structures strengthened using externally bonded fibre reinforced polymer (FRP) laminates, the performance of the bonded interface is vital to the performance of the strengthened structure.
Additionally is a method also with advantages of better aesthetics for the final strengthened structure.
Therefore, replacing the epoxy adhesive with cementitious bonding agent can enhance the performance of the strengthened structure at high temperatures.
Some suggestions are provided for the optimal design of FRP strengthened structures.
Up to now most studies concentrate on blast-resistance of FRP strengthened structures.
A relevant stress redistribution between the components of the examined strengthened structures was observed.
However, only few information is available regarding their mechanical properties and effectiveness in improving the seismic performance of strengthened structures.
During the service life, BFRP strengthened structures might be subjected to dynamic loadings such as blast and impact loads.
