earticle

영어

This experimental work provides the method to detect damage of four-story steel structure model based on FRF (frequency response function) data collected from impact hammer tests. This method does not require the baseline data at the intact state without damage. The measurements at two states depending on the mass attachment are collected. The collected data are transformed to POM (proper orthogonal mode) and the damage is investigated through the comparison of two POM sets. The experimental work illustrates the validity and applicability of the proposed method.