Generally, a structural strength of handrail is influenced by bearing capacity of support column and it's base, due to shape of a handrail. We development of a handrail health monitoring technique, base on measuring strength of support column and it's base. It is easy to change a characteristic of vibration of a handrail by additional mass. And, it's able to evaluate rigidity of support column and it's base, based on more than two independent vibration tests. It's able to obtain of accurate measurement of rigidity of support column and it's base, by the sytem identification technique with additional mass. It is made that the handrail health monitoring by comparing now rigidity with initial it of support column and it's base.
