Stress Response and Damage Characteristics of Local Members of a Structure due to Tunnel Blasting Vibrations Based on the High-Order Local Modal Analysis

Table 5

Natural frequencies of the masonry building for initial and updated models.

Modal no.	Frequency (Hz)	Modal shape
1	8.80	First-order buckling longitudinal global deformation
2	12.46	First-order transverse buckling global deformation
3	15.99	Torsion global deformation
4	23.12	Second-order longitudinal buckling global deformation
5	24.99	Second-order transverse buckling global deformation
6	26.10	Left side wall of second floor and front parapet wall local deformation
7	26.55	Right side wall of second floor local deformation
8	28.71	Right side wall of second floor local deformation
9	29.91	Longitudinal partition wall of first floor and front parapet wall local deformation
10	30.09	Longitudinal partition wall of first floor local deformation
11	30.16	Longitudinal partition wall of first floor local deformation
12	30.38	Transverse partition wall of second floor and front parapet wall local deformation
13	31.30	Right side wall and transverse partition wall of second floor local deformation
14	31.54	Front parapet wall, right side wall, and transverse partition wall of second floor local deformation
15	32.55	Front parapet wall, right side wall, and transverse partition wall of second floor local deformation
16	32.97	Front parapet wall, transverse wall of first floor, and transverse partition wall of second floor local deformation
17	33.60	Partition wall of second floor, balcony, and front parapet wall local deformation
18	33.98	Balcony and front parapet wall local deformation
19	35.47	Balcony, transverse partition wall of second floor, and right window side wall local deformation
20	36.34	Balcony, transverse partition wall of second floor, and right window side wall local deformation