In order to investigate the strength deterioration of thin cylindrical shell structures caused by corrosion, bending buckling tests were conducted on electric power poles. Before the loading tests, surface irregularities were measured using a 3-dimensional portable measurement system. The following findings were obtained from the test results: (1) The remaining strength of corroded thin cylindrical shells depends on the corroded area, and the remaining strength decreases remarkably when the corroded area is larger than buckling region. (2) It is appropriate to evaluate the remaining bending buckling strength of corroded thin cylindrical shells by examining the remaining thickness in the region of buckling.
