Baseline-Free Detection Method for Change of Lateral Stiffness of High-Rise Building Based on Statistical Moment Curvature

Table 2

List of numerical simulation cases.

Structural form	External excitation	Cases	Noise conditions
Constant stiffness structure	Gaussian white noise	Cases 1–5	Noise-free
			SNR = 40 dB
			SNR = 30 dB
	El-Centro wave	Cases 1–5	Noise-free
			SNR = 40 dB
			SNR = 30 dB
Gradual stiffness structure	Gaussian white noise	Cases 1–5	Noise-free
			SNR = 40 dB
			SNR = 30 dB
	Kobe wave	Cases 1–5	Noise-free
			SNR = 40 dB
			SNR = 30 dB
Structures with stage-change stiffness	Gaussian white noise	Cases 1, 2, and 6–8	Noise-free
			SNR = 40 dB
			SNR = 30 dB
	Kobe wave	Cases 1, 2, and 6–8	Noise-free
			SNR = 40 dB
			SNR = 30 dB