Assessing Seismic Performance of Gantry Crane Subjected to Near-Field Ground Motions Using Incremental Dynamic and Endurance Time Analysis Methods

Table 4

The difference between maximum and minimum values at three typical times.

Time (s)	Lateral LDR			Vertical LDR
	10	20	30	10	20	30
(%)	1.07	2.18	2.58	0.20	0.31	0.31
(%)	0.74	1.81	1.81	0.15	0.17	0.18
(%)	44.8	20.3	42.4	33.1	78.9	74.8

Note:  = .