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

Table 2

Natural vibration periods of the structure.

Order	Period(s)				Description
	NosaCAD	ABAQUS	Perform-3D	Test
(1)	2.29	2.30	2.19	2.57	Translation in with torsion
(2)	1.30	1.34	1.29	1.71	Translation in
(3)	1.12	1.11	1.03	1.21	Torsion
(4)	0.71	0.68	0.61	0.73	Second translation in with torsion
(5)	0.58	0.55	0.49	0.59	Second translation in
(6)	0.40	0.41	0.39	0.47	Second Torsion