Coupling ATMD System for Seismic Response Control of Two Adjacent Buildings

Table 1

Dynamic properties of two building structures.

Properties	Building 1	Building 2
Floors	10	10
Floor height (m)	3.80	3.80
Floor mass, (tons)	123.20	110.70
Column stiffness, (MN/m)	184.55	254.55
Damping ratio	Assumed as 1.0% for 1^st and 2^nd modes
Natural frequency (Hz)
1^st	0.92	1.14
2^nd	2.74	3.40
3^rd	4.50	5.78