Nonlinear Seismic Response Characteristics of CAP1400 Nuclear Island Structure on Soft Rock Sites

Table 1

First ten modes of CAP1400 nuclear island structure.

Mode	1st	2nd	3rd	4th	5th	6th	7th	8th	9th	10th
Period (s)	0.2345	0.2234	0.1546	0.1426	0.1381	0.1329	0.1185	0.1157	0.1123	0.1107