Partition Wall End Post Segmentation for Acoustic Isolation

Solution Overview

Problem

Partition walls constructed in the single-runner staggered-stud or single-runner staggered-pad patterns exhibit inferior sound-insulation performance compared to double-runners parallel-studs patterns, particularly in middle and high frequency ranges, and existing modifications such as increasing thermal-insulating material thickness or using vibration-damping adhesives do not significantly improve acoustic transmission loss.

Innovation Solution

The end post at the wall end portion is divided into first and second elements spaced apart to form a gap or isolation zone, with interior finishing panels fixed to each element, creating an air space and using vibration-insulating materials to interrupt sound vibration propagation, thereby enhancing sound-insulation performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a single-runner staggered-stud pattern or single-runner staggered-pad pattern is used for partition wall construction, then the wall thickness is reduced and workability is improved, but the sound-insulation performance deteriorates

Engineering Contradiction:

ImproveworkabilityVSAvoidsound-insulation performance

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The end post is divided into first and second end post elements spaced apart from each other, creating a segmented structure that interrupts sound vibration propagation paths while maintaining the single-runner staggered-stud or staggered-pad pattern configuration

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A gap or isolation zone filled with vibration-insulating material is introduced between the first and second end post elements, acting as an intermediary element that blocks sound transmission while preserving the overall wall structure and workability advantages

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If thermal-insulating material thickness is increased or vibration-damping adhesives are used, then sound-insulation performance is attempted to be improved, but the acoustic transmission loss in middle and high frequency ranges remains insufficient

Engineering Contradiction:

Improvesound-insulation performanceVSAvoidacoustic transmission loss

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The end post is divided into first and second end post elements spaced apart from each other, creating a segmented structure that interrupts sound vibration propagation paths while maintaining the single-runner staggered-stud or staggered-pad pattern configuration

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A gap or isolation zone filled with vibration-insulating material is introduced between the first and second end post elements, acting as an intermediary element that blocks sound transmission while preserving the overall wall structure and workability advantages

Inventive Principle:

Principle #24Intermediary (Mediator)

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

This configuration improves sound-insulation performance by increasing the acoustic transmission loss in middle and high frequency regions, achieving a sound-insulation performance corresponding to a TLD value of 58 to 61, surpassing conventional limits, and can be applied to both staggered-stud and staggered-pad patterns.

Implementation Method 1

spacing said elements from each other to form a gap or an isolation zone and interrupting a propagation of a solid vibration or insulating a path for propagating the solid vibration

Methodology Applied

Scientific EffectVibration insulation: Damping

Data Source

PatentUS11492802B2Partition wall structure and method for constructing same

Publication Date: 2022.11.08 YOSHINO GYPSUM CO LTD

AI summary

A partition wall has a structure with a wall end portion butted against another building structure and exposed to architectural spaces. An end post at the end portion of the wall is constituted from first and second end post elements, which are spaced apart from each other, so that a gap or an isolation zone interrupting a propagation of a solid vibration or insulating a path for propagating the solid vibration is formed between the first and second elements. An interior finishing panel for defining the architectural space on one side of the wall is fixed to the first element and the interior finishing panel for defining the architectural space on an opposite side of the wall is fixed to the second element.