On the Use of Singular Vectors for the Flexibility-Based Damage Detection under the Assumption of Unknown Structural Masses

Table 10

Damage indices estimated by modal vectors-based procedure in case of complete (on the left) and partial identification (on the right, by using only the first vector) on the shear-type frame.

	Damage pattern	Story
			D1	−3.95	+0.08	+0.37	−0.30
D2	−1.09		−3.57	−0.36	−0.29
D3	−3.42		−2.65	+0.18	−1.02
D4	−3.84		−3.92	−7.51	−0.38
	D1	−1.62	+0.42	+1.04	+1.02
	D2	−1.03	−2.69	−0.36	−0.12
	D3	−2.64	−1.51	+0.94	+0.95
	D4	−2.22	−2.29	−5.48	+1.35