Evaluation of the Floor Acceleration Amplification Demand of Instrumented Buildings

Table 8

Roof acceleration amplification (RAA) at the 65^th, 75^th, and 85^th percentiles.

Building type	Height level	PGA ≤0.035 g			PGA 0.035–0.1			PGA 0.1–0.2			PGA >0.2
		65^th	75^th	85^th	65^th	75^th	85^th	65^th	75^th	85^th	65^th	75^th	85^th
Concrete	Lowrise	3.92	4.38	4.77	3.80	4.05	4.56	3.51	3.87	4.31	2.96	3.02	3.35
	Highrise	3.77	4.69	5.53	3.34	3.77	4.82	2.60	2.73	2.91	1.78	1.86	1.93
	Skyscraper	4.69	5.11	5.19	NA	NA	NA	NA	NA	NA	NA	NA	NA
Steel	Lowrise	3.96	4.23	5.08	3.13	3.63	4.20	3.91	4.17	4.36	2.68	2.70	2.77
	Highrise	3.70	4.23	5.58	2.04	2.47	3.62	2.40	2.87	3.10	NA	NA	NA
	Skyscraper	3.61	4.41	4.69	3.01	3.64	4.40	NA	NA	NA	NA	NA	NA
Masonry	Lowrise	3.44	4.07	5.12	3.50	3.87	4.58	4.49	4.70	4.77	NA	NA	NA
Timber	Lowrise	3.93	4.59	4.93	2.53	2.98	3.77	NA	NA	NA	NA	NA	NA

Note. “NA” denotes that no data were available or that the number of data points was <4.