SOUNDNESS EVALUATION METHOD OF STRUCTURE AND SOUNDNESS EVALUATION DEVICE OF STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a soundness evaluation method of a structure and a soundness evaluation device of the structure capable of evaluating a soundness of the structure such as a bridge pier even at a place in which the execution of an impact vibration test is difficult like the place which is difficult to attach a dead-weight such as the bridge pier inside the river.;MEANS FOR SOLVING THE PROBLEM: A soundness evaluation method of a structure includes: a vibration process of applying a vibration to a structure by a plurality of vibrators each different in a vibrating direction; a measurement process of measuring vibration data generated to the structure by the vibration process; a calculation process of calculating a natural frequency measured value of the structure from the vibration data; and an evaluation process of evaluating the soundness by the natural frequency measured value.;SELECTED DRAWING: Figure 2;COPYRIGHT: (C)2018,JPO&INPIT