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Projection boothAir lockFront lawn area (Lawn-covered plaza)FoyerBalconyCeiling space for sound insulationCeiling space for sound insulationFloor: Cork tilesImproved sound insulationDeteriorated structure restoredNew elements for seismic resistanceScale 1:250RCRemoval and reconstruction of roof beemsRC slabs were replaced with deck plates Roof: Thermal insulation paintedExterior walls: Elastic silicone coating applied after repairing the structureFoyer shows no repaired partsFlow of stressUPAcoustic properties improved by making the ceiling surface more rigid and increasing massWalls: Top coat appliedover repairs3Reconstruction of ceiling to improve seismic resistanceCeiling: Fiber-reinforced gypsum panelsH93×W13534567890.15IsIs0.7 3D 調Architectural Ideas and Designs Preserved for the Next GenerationRespect for Togo Muranos design philosophy was our top priority in each category of work performed, including seismic reinforcement, hall interior refurbishment and upgrade, hall acoustic design, and exterior improvements and repairs. Our diagnosis of the buildings seismic performance showed an extremely low seismic index structural value of 0.15, so the hall roof was entirely removed and reconstructed. This radical approach resulted in a greater than 0.7 value in the completed project. The removal of the hall roof necessitated reconstruction of the hall interior and equipment. To preserve the halls original design, we used 3D scans to study and replicate its forms and retained the original hall woodwork, door hardware, and other details. While making the ceiling reliable under seismic stress, the renovations made significant improvements in sound insulation and reverberation time, greatly enhancing the value of the building as a music hall. Renovation of the exterior preserved as much as possible the original tiles designed by Togo Murano. Regardless of the tile condition, a special pinning technique was applied to the entire tile surface to mitigate the risk of future tile detachment. New tiles were made by a long-established local kiln and special care was taken to achieve harmony between old and new tiles.Concept Diagram for RenovationRemoval and Reconstruction of Roof Structure3DCeiling Reconstruction Study Using 3D Laser ScannerPreservation of Original Building ElementsSection, scale 1:25018911984Togo Murano (18911984) was a leading Japanese architect active from the pre-World War II period to the 1980s. 252017 Summer31

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