2025 Volume 31 Issue 77 Pages 181-186
This article reports on the structural design and construction involved in renovating the “Former Hidaka-Town-Office” into a theater, as well as on the micro-vibration characteristics associated with this transformation. To convert the ground-floor hall into a theater and ensure the required floor height, the second floor was raised and reinforced to accommodate the increased load. Additionally, seismic reinforcement was conducted primarily around the building’s perimeter walls, significantly enhancing both stiffness and load-bearing capacity. The comparison of vibration characteristics before and after the renovation revealed increases in the frequencies of the primary vibration modes, confirming an increase in initial stiffness.
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