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Analysis of Reducing Heavy Impact Sound in Apartments : for Dry Floor System
DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | 박문서 | - |
dc.contributor.author | 임호환 | - |
dc.date.accessioned | 2018-05-29T03:10:00Z | - |
dc.date.available | 2018-05-29T03:10:00Z | - |
dc.date.issued | 2018-02 | - |
dc.identifier.other | 000000151306 | - |
dc.identifier.uri | https://hdl.handle.net/10371/141347 | - |
dc.description | 학위논문 (석사)-- 서울대학교 대학원 : 공과대학 건축학과, 2018. 2. 박문서. | - |
dc.description.abstract | While about 60% of the population live in apartment type of dwelling in Korea, The characteristic of wall structure for apartment, inevitably causes interlayer noise. Such interlayer noise is a sensitive issue among apartment residents, with about 20,000 civil complaints per year. As a countermeasure for the interlayer noise problem, wall type structure with standard floor structure including floor heating has been used widely.
While the satisfaction rate of the legal standards exceed 98% for light impact sound, only 50% of cases meets the heavy impact sound requirement. With the standard floor structure, it is difficult to obtain uniform quality due to the concrete curing process in the wet method, in addition to a problem of replacing buried heating pipes after a 15 year life cycle. Therefore, this research aims to study analyzes the tendency of the heavy impact sound of the dry floor system in the wall structure apartment, in order to examine the applicability of the dry floor system and the mitigation of the interlayer noise problem. For this purpose, reduction of heavy impact sound according to three variables (floor system, resilient material, mass) was experimented, and the correlation among such variables was confirmed by ANOVA and multiple regression. The results show that a significant difference between the three parameters was captured in the 63Hz and 125Hz bands, critical ranges for managing heavy impact sound, because of variation in structural type. According to this study, access floor system has an noticeable reduction performance of heavy impact sound, and thus heavier weight of the access floor system to which the resilient material is applied, corresponds to effective in mitigating heavy impact sound. Accordingly, the access floor system can be more effective with less mass increase than wet floor system that is attached to bare slab, In addition, the access floor system can make a positive contribution to the dry floor system, in respect to reducing interlayer noise. As a follow-up additional experiment is considering various resilient materials in the process of controlling the experimental factors. | - |
dc.description.tableofcontents | Chapter 1. Introduction 1
1.1. Research Background 1 1.2. Research Obejectives 5 Chapter 2. Preliminary Study 6 2.1. Interlayer Noise 7 2.2. Dry Floor system 10 2.3. Influencing Factors of Heavy Impact Sound 14 2.4. Summary 17 Chapter 3. Experimental Method for Interlayer Noise 18 3.1. Research Procedure and methods 18 3.2. Experimental Design for Interlayer Noise 20 3.3. Heavy impact sound measure method 26 3.4. Analysis Method for Reduction Performance 29 3.5. Summary 30 Chapter 4. Experiment Results and Analysis for Reducing performance of Heavy Impact Sound 31 4.1. Analysis of Single number quantity 31 4.1.1 Analysis of Single nuber quantity using Bang machine 31 4.1.2 Analysis of Single nuber quantity using Impact ball 34 4.2. ANOVA Analysis 36 4.2.1 ANOVA Analysis using Bang machine 37 4.2.2 ANOVA Analysis using Impact ball 46 4.3. Multiple Regression Analysis 54 4.3.1 Multiple Regression Analysis using Bang machine 54 4.3.2 Multiple Regression Analysis using Impact ball 60 4.4. Summary 68 Chapter 5. Conclusion 71 5.1. Conclusion 71 5.2. Contribution 74 5.3. Limitation and Further Study 75 Bibliography 76 Abstract in Korean 82 | - |
dc.format | application/pdf | - |
dc.format.extent | 3578988 bytes | - |
dc.format.medium | application/pdf | - |
dc.language.iso | en | - |
dc.publisher | 서울대학교 대학원 | - |
dc.subject | Interlayer Noise | - |
dc.subject | Floor Impact Sound | - |
dc.subject | Dry Floor System | - |
dc.subject | Reduction Performance | - |
dc.subject | ANOVA Analysis | - |
dc.subject | Multiple Regression Analysis | - |
dc.subject.ddc | 690 | - |
dc.title | Analysis of Reducing Heavy Impact Sound in Apartments : for Dry Floor System | - |
dc.type | Thesis | - |
dc.description.degree | Master | - |
dc.contributor.affiliation | 공과대학 건축학과 | - |
dc.date.awarded | 2018-02 | - |
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