Development of Absorbed Blasting Vibration Energy Index for the Evaluation of Human Comfort in Multistorey Buildings

Table 2

The natural frequency of common buildings.

Building categories	Structure type	Building type	Building storey number	Natural vibration period (s)	Natural vibration frequency (Hz)
Civil	Brick concrete structure	Civil house	1~2	0.1~0.2	5.0~10.0
		Office	3	0.34	2.9
		Dormitory	3	0.25	4.0
		Dormitory	4~7	0.36~0.60	1.7~2.8
	Frame shear structure	Cast-in situ concrete structure	11	0.51	2.0
		Precast fabricated concrete	13	0.53	1.9
		Residential building	12~13	0.65~0.75	1.3~1.5