 |
 |
 |
||||
 |
 |
 |
 |
 |
 |
|
 |
|
|
|
|
|
|
 |
|
 |
 |
 |
The seismic flexible joints expand and contract to follow the relative displacement between the structure and the base when the earthquake hits the base-isolated building. The safety of the lifeline can be secured by the use of the seismic flexible joints. |