Acoustic Damping Structural Support System for Wall Sound Attenuation
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Solution Overview
Problem
Current methods for reducing sound and vibration transmission through walls are costly, time-consuming, and require skilled labor, often involving multiple layers of materials that can extend beyond the stud area, leading to reduced floor space and potential drywall issues like cracking.
Innovation Solution
A structural support system featuring paired tracks and studs with integrated acoustic damping members, allowing for efficient installation of drywall while increasing sound transmission coefficient (STC) ratings without the need for additional insulation or extensive material layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If multiple layers of sound-attenuation material and dual stud walls are used to achieve high STC ratings, then sound transmission is reduced, but construction cost and time increase significantly
Solution Approach 1:
The patent combines the sound-attenuation function with the structural support function into a single integrated wall assembly. The dual stud wall structure incorporates acoustic damping members and insulation between the studs, eliminating the need for separate soundproofing layers and reducing construction steps while achieving STC ratings of 55-60
Solution Approach 2:
The patent uses composite construction combining wood or metal studs with acoustic damping members and insulation materials within the same wall cavity. This composite approach achieves superior sound attenuation (STC 55-60) compared to single-material walls, while maintaining a streamlined construction process that reduces time and labor costs
2Object-affected harmful factors
If additional layers of conventional materials are added to increase STC rating, then sound attenuation improves, but material cost and labor cost increase
Solution Approach 1:
The patent merges structural and acoustic functions into one assembly, using the wall cavity space efficiently to accommodate both support studs and sound-attenuation materials. This integration reduces the total volume of materials needed compared to adding separate soundproofing layers, while achieving STC ratings of 55-60
Solution Approach 2:
The patent places acoustic damping members and insulation specifically in the spaces between the dual studs, concentrating sound-attenuation materials where they are most effective. This targeted placement optimizes sound attenuation performance while minimizing the total quantity of materials required
3Object-affected harmful factors
If multiple phases of wall assembly are used to add sound damping layers, then STC rating increases, but construction complexity and labor cost increase
Solution Approach 1:
The patent combines multiple functions (structural support, sound attenuation, insulation) into a single integrated wall assembly that can be constructed in one continuous process. The dual stud wall with acoustic damping members built-in eliminates the need for multiple assembly phases, reducing construction complexity while achieving high STC ratings of 55-60
4Object-affected harmful factors
If material layers extend beyond the outer surface of studs, then sound attenuation is improved, but drywall installation becomes difficult and cracking occurs
Solution Approach 1:
The patent confines acoustic damping members and insulation materials within the spaces between the dual studs, ensuring they do not protrude beyond the outer surface of the stud assembly. This localized placement maintains sound attenuation effectiveness while providing a flat, even surface for drywall installation, preventing cracking and ensuring long-term reliability
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively attenuates sound waves, achieving higher STC ratings with reduced labor and material costs, maintaining usable space and preventing drywall installation issues.
Implementation Method 1
Acoustic damping members are received on the ledge of adjacent pairs of tracks and on the ledge of adjacent pairs of studs
Implementation Method 2
The present disclosure is directed to a structural support system that provides damping of sound and vibration
Data Source
AI summary
An acoustic damping structural system includes studs, tracks, and acoustic damping members. The studs and tracks include a first wall, a second wall, and a third wall that define a channel. The third wall includes a first portion perpendicular to the first wall, a second portion perpendicular to the first portion, and a third portion perpendicular to the second portion to define a ledge along a length of the third wall. The tracks are coupled to a support, such as floor joists and roof beams, in parallel. Opposite ends of the studs are received in the channels of the tracks, with the acoustic damping members received on and coupled to the ledges of pairs of the studs and pairs of the tracks. The acoustic damping members are planar with the ledges and the studs and tracks, respectively.