Seismic Response Analysis of Multidimensional and Multiangle Long-Span Top-Supported CFST Arch Bridge

Figure 14

Upper chord displacement ratio under the X + Y combined multiangle excitation. (a) X direction, (b) Y direction, and (c) Z direction. Note. The ratio in the figure is the ratio of the chord displacement variation amplitude of the X + Y combination under multiangle and 0° seismic excitation.

(a)

(b)

(c)