Shape memory alloy wires can increase the critical temperature of the beam, and also can restrain thermal buckling occurring or make the post-buckled beam back to initial equilibrium states.

Micro speckle interferometry is employed to detect the deformation of the micro beam in the equilibrium and the experimental results are compared with the theoretical prediction.

Based on this research and using the ultimate equilibrium theory, the calculation model of shear bearing capacity of corroded simply supported reinforced concrete beam is established.