Experimental and Analytical Investigation Based on 1/2 Scale Model for a Cleanroom Unit Module Consisting of Steel Section and Reinforced Concrete

Table 4

Comparison of the simulated and measured frequencies.

Mode	Frequencies by an experimental test (Hz)	⁢Frequencies simulated without; ⁢the consideration for the stiffness of rebars		⁢Frequencies simulated with; ⁢the consideration for the stiffness of rebars
		(Hz)	Error rate (%)	(Hz)	Error rate (%)
1st	16.25	13.90	16.91	16.11	0.87
2nd	27.75	33.80	17.90	27.34	1.50
3rd	30.50	39.50	22.78	31.25	2.40