| 摘要 |
PROBLEM TO BE SOLVED: To provide a cable installation structure for vibration isolation constructions, which even if components placed above and under a vibration isolation layer are moved relative at the occurrence of an earthquake, is capable of preventing damages to cables installed between the components, and furthermore of preventing excessive bending stress from being exerted on the cables. SOLUTION: An upper cable rack 13 is installed on an upper structure 12, and a lower cable rack 14 is installed on a lower structure 11. A cable 15 is laid between the upper cable rack and lower cable rack, and the cable is provided with an extra length portion 15a the length of which is equal to or larger than the distance of the relative movement of the upper structure and lower structure. The cable is wound on the cable fixing portion of the lower cable rack, and a cable supporting member 16 having a radius not less than a specified value and of a columnar shape is installed. |
