Evaluation of the Floor Acceleration Amplification Demand of Instrumented Buildings

Table 5

Velocity factor (α) in the steel buildings.

Height type	PGA (g)	Fitted	65%	75%	85%
Lowrise	≤0.035	2.14	2.13	2.73	3.00
	0.035–0.1	1.36	1.69	2.03	2.35
	0.1–0.2	1.45	1.57	1.89	2.80
	>0.2	0.94	1.00	1.00	1.70
Highrise	≤0.035	1.57	1.51	2.03	2.76
	0.035–0.1	1.14	1.00	1.39	2.32
	0.1–0.2	1.02	1.29	1.88	2.04
	>0.2	NA	NA	NA	NA
Skyscraper	≤0.035	1.48	1.67	2.21	2.79
	0.035–0.1	0.93	1.00	1.24	1.60
	0.1–0.2	0.87	1.00	1.27	1.27
	>0.2	NA	NA	NA	NA

Note. “NA” denotes that no data were available.