| 摘要 |
PROBLEM TO BE SOLVED: To provide a reliable and convenient observation device for observing a state of relative horizontal movement of an upper construction body to a lower construction body in a base isolation building. SOLUTION: In this shaking observation device 1 to be installed on the base isolation building 130 having a base isolation device 120 between the lower construction body and the upper construction body, a pressure sensitive recording paper sheet 3, which is dehumidification-processed, is put on an observation recording board 2 installed on a foundation 100 constituting the lower part construction body, a tip part 4A of a pen shaped member 4 disposed on a beam 110 constituting the upper part construction body is pressed onto the recording paper sheet 3 by an elastic spring 76 of an installation device 5 with a pressure required to conduct pressure sensitive recording, and the state of the relative horizontal movement of the beam 110 the foundation 110 is pressure-sensitively recorded on the recording paper sheet 3 in an earthquake. |
