Variability and Accuracy of Target Displacement from Nonlinear Static Procedures

Table 2

Comparison of fundamental vibration periods (sec) from system identification, linear-elastic model, and pushover analysis of nonlinear model.

Building	Longitudinal direction			Transverse direction
	System ID	Linear model	Nonlinear model	System ID	Linear model	Nonlinear model
Imperial County	N/A	N/A	N/A	0.41	0.41	0.48
Sherman Oaks	2.93	2.67	2.51	2.93	2.94	2.62
North Hollywood	2.64	2.57	2.78	2.82	2.98	2.91
Watsonville	0.24	0.27	0.46	0.30	0.31	0.41
Santa Barbara	0.16	0.15	0.23	0.20	0.18	0.28