Sensitivity to Damage Imperfection for Multileaf Masonry Walls Based on Vibrational Analyses

Table 6

Frequency values and standard deviation (SD) for the 1st torsional modal shape.

Typology	Undamaged			Damaged to 35%		Damaged to 75%
	Freq. (Hz)	SD1	SD2	Freq. (Hz)	SD	Freq. (Hz)	SD
B1-1	18.746	5.244	3.581	27.01	15.524	64.61	21.342
B1-2	19.201			41.072		26.668
B1-3	12.783			—		—
B2-1	7.077		0.458	41.15		28.515
B2-2	7.743			26.587		27.019
B2-3	7.382			40.849		26.189
B3-1	6.387			41.269		81.719
B3-2	6.952			24.028		41.405
B3-3	6.93			72.89		26.863