Shaking Table Test Investigation on Seismic Performance of Joint Model of Immersed Tunnel

Table 1

Design parameters of the shaking table array.

Countertop size	Table weight	Frequency range	Displacement distortion	Wave form
1.0 m × 1.0 m	≈1 Ton	0.4～50 Hz	≤5%	Seismic, Harmonic, etc.
Maximum load	Displacement stroke	Maximum speed	Number of Tables	Number of actuators
5Ton (one table)	±75 mm	60 cm/s	9	12
Peak acceleration	Control mode	Synchronization mode	Vibration direction	Number of link-rod
2.5 g (null-load) 1.0 g (full-load)	Digital acceleration control	Same and differential phase same and differential amplitude	Horizontal and verticality	45