| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a crane, a base isolation method thereof and a control method of a trolley of the crane, capable of preventing derailment of a traveling device and collapse of the crane, by securing the gravity center in a stable position, when an earthquake occurs. <P>SOLUTION: When the earthquake occurs in cargo handling work, the trolley 12 is traversed to a gravity center stable stopping position P1, and the gravity center g1 of a base isolation crane 1 is secured in a substantially intermediate position between a sea side leg 2 and a land side leg 3. In operational stopping, a mooring position P3 of the trolley 12 is set to a gravity center stable stopping position P3, and the center of gravity g3 of the crane 1 is secured in advance in the substantially intermediate position between the sea side leg 2 and the land side leg 3. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
