Seismic Evaluation of a Multitower Connected Building by Using Three Software Programs with Experimental Verification

Table 3

Natural vibration periods of the Main Tower and Annex Tower.

Order	The Main Tower		The Annex Tower
	Period(s)	Description	Period(s)	Description
(1)	2.36	Translation in	1.05	Translation in
(2)	1.33	Translation in	0.97	Translation in
(3)	1.20	Torsion	0.74	Torsion
(4)	0.61	Second translation in	0.26	Local vibration of roof
(5)	0.39	Second translation in	0.24	Local vibration of roof
(6)	0.33	Second torsion	0.23	Second torsion