| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a quay crane having a seismic isolation device coping with a large-scale earthquake and having a slide length of±1,000 mm or more in the quay crane having the seismic isolation device comprising laminated rubber. <P>SOLUTION: In the quay crane including a seismic isolation device 2, the seismic isolation device 2 includes: laminated rubber 3 obtained by laminating steel plates and rubber material; and an auxiliary support mechanism 4A. The auxiliary support mechanism 4A includes a support body 7A fixed to one of a top plate 5 side or a bottom plate 6 side of the seismic isolation device 2 and a contact plate 8 fixed to the other. The support body 7A and the contact plate 8 constituting the auxiliary support mechanism 4A are brought into contact with each other at least upon the occurrence of an earthquake, and the auxiliary support mechanism 4A supports the weight of the quay crane. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
