VOID DETECTION EQUIPMENT OF EXTERNAL TENDON FOR BRIDGE BY COMBINING AUDIBLE SOUND INSPECTION WITH MAGNETIC FLUX LEAKAGE INSPECTION AND METHOD FOR THE SAME

摘要

Provided are damage detection equipment of an external tendon for a bridge by combining an audible sound inspection device with a magnetic flux leakage inspection device, and a method thereof, wherein an audible sound inspection device detecting an opening position of an external tendon in accordance with a shock unit, a shock sound wave, or a shock elastic wave applying a shock to a surface of the external tendon and a magnetic flux leakage inspection device detecting a damage degree of the external tendon are integrated to be one damage detection equipment of an external tendon for a bridge. Therefore, efficiency of the damage detection equipment of an external tendon can be improved. Moreover, after removing the audible sound inspection device for detecting an opening in an external tendon, a detachable step of installing the magnetic flux leakage inspection device for detecting a damage degree of the external tendon can be omitted to reduce time required for detecting damage to the external tendon.