Improving ASTC Performance of As-built Wood-frame Double-shear Panel Wall Assemblies
AbstractIn wood-frame buildings, structural shear resistance in load-bearing walls is sometimes provided using OSB or plywood sheathing board directly applied on the wood framing. When these panels are used on both internal faces of a double-stud demising assembly with a drywall layer on each finished side, the sound transmission performance is significantly compromised by the air cavity resonance between the panels. This was the subject of a 2015 Acoustics Week presentation. As a follow-up, the mitigating effects of using a resilient mounting for the drywall are investigated from recent field measurements.
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