640854.fig.008a
(a) The first vibration mode of T-frame
640854.fig.008b
(b) The first vibration mode of hang beam (14-15# and 16-17#)
640854.fig.008c
(c) The first vibration mode of hang beam (15-16#)
Figure 8: the first vibration mode of grillage model for hang beam and T-frame.