Dynamic Analysis of Deep Water Highway Tunnel under Ocean Current

Table 4

Modes with different width-span ratios.

Type	Width-span ratio	Mode shape
A	0.067∼0.2	1^st	Bending of pier body
		2^nd	Horizontal bending of pipe
		3^rd	Vertical bending of pipe
B	0.05∼0.075	1^st	Horizontal bending of pipe
		2^nd	Bending of pier body
		3^rd	Vertical bent of pipe
C	0.022∼0.05	1^st	Horizontal bending of pipe
		2^nd	Vertical bending of pipe
		3^rd	Second-order horizontal bending of pipe