A Two-Stage Method for Structural Damage Prognosis in Shear Frames Based on Story Displacement Index and Modal Residual Force

Table 7

Mass and horizontal story stiffness (MN/m) of undamaged and damaged 12-DOF model.

Story	DOF	Mass	Undamaged	Scenario 1	Scenario 2	Scenario 3
		(Kg)	Stiffness	Stiffness	Stiffness	Stiffness
1		3452.40	106.60	106.60	106.60	106.60
1		3452.40	67.90	55.84	55.84	63.88
1		3819.40	232.00	213.12	213.12	225.71
2		2652.40	106.60	106.60	106.60	106.60
2		2652.40	67.90	67.90	67.90	67.90
2		2986.10	232.00	232.00	232.00	232.00
3		2652.40	106.60	106.60	94.54	106.60
3		2652.40	67.90	67.90	67.90	67.90
3		2986.10	232.00	232.00	213.12	232.00
4		1809.90	106.60	106.60	106.60	106.60
4		1809.90	67.90	67.90	67.90	67.90
4		2056.90	232.00	232.00	232.00	232.00