| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a seismic isolation method for an existing building with a mixture of seismic isolation devices having a different vertical rigidity, which allows each of the seismic isolation devices having a different vertical rigidity to be applied with a designed axial force, achieving predetermined seismic isolation performance. <P>SOLUTION: A seismic isolation device A having a low vertical rigidity is joined to an upper structure 5 and a lower structure 6 of an existing building, while a seismic isolation device B having a high vertical rigidity is joined to the lower structure 6 and not joined to the upper structure 5. In this state, a temporary support column 4 corresponding to the seismic isolation device having a low vertical rigidity is unloaded, while the pressure of a jack 4b of a temporary support column 4 corresponding to the seismic isolation device having a high vertical rigidity which is not joined to the upper structure is adjusted so that the building load applied to the temporary support column is maintained at a fixed state. Subsequently, the seismic isolation device having a high vertical rigidity is joined to the upper structure, and the temporary support column corresponding to the device is then unloaded. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
