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Akustiska värden i platonkonstruktioner: Minimera lågfrekvent buller i skolmiljöer
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Technology and Design.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Technology and Design.
2019 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Acustic values in platon construction : Minimizing low frequency noise in school environments (English)
Abstract [sv]

I denna studie har man fokuserat på hur omfattande ljudnivåerna kan vara på ett så kallat flytande golv. Det har fördjupats i konstruktioner med Platonmatta för att få en uppfattning om hur de akustiska faktorerna yttrar sig när någon beträder golvet. Studien jämför resultat av steg- och trumljudnivåer med Granabkonstruktioner, som är en annan typ av flytande golv, samt hur Platonkonstruktionen står sig i förhållande till de lagstadgade riktvärdena. I denna studie har det fokuserats på hur ljudet uppfattas både objektivt och subjektivt eftersom mätvärden i vissa fall inte stämmer överens med den faktiska upplevelsen. Golvtesterna som genomförts har gett oss mätvärden och en objektiv upplevelse. Detta har resulterat i en optimal golvkonstruktion teoretiskt. Sammantaget visar denna studie att golvens konstruktion i stor utsträckning kan minimera steg- och trumljud. Alla Platonkonstruktioner som testats i studien har generellt gett bra akustiska värden för att vara ett överliggande golv. Den kunskapen kan vara till stor nytta när man projekterar ett flytande golv eftersom höga ljudnivåer i de lägre frekvenserna har visat sig påverka bland annat inlärnings- och koncentrationsförmågan.

Abstract [en]

This study highlights the intensity and the extent of sound levels produced by a so called floating floor. The study has closely observed floor constructions made of Platon mat in order to detect the acoustic factors and how they are manifested when stepping on the floor. The study also compares the results of step- and drum sound levels with Granab constructions, another type of floating floor, as well as how the Platon construction stands in relation to the statutory guide values. This study has focused on how the sound from a Platon floor is perceived in an objective and a subjective perspective, because in some cases measured values do not correspond to the actual experience. Measurements that have been carried out give an idea of how to design floors and what type of material should be used to obtain the most favorable sound level possible. Overall, this study shows that the design of the floors can, to a large extent, minimize step- and drum sounds. This knowledge can be of great use when designing a floating floor since it has been shown that high sound levels in the lower frequencies affect, among other things, our abilities of learning and concentrating.

Place, publisher, year, edition, pages
2019. , p. 38
Series
TRITA-ABE-MBT ; 19509
Keywords [en]
ACOUSTIC
National Category
Building Technologies
Identifiers
URN: urn:nbn:se:kth:diva-260248OAI: oai:DiVA.org:kth-260248DiVA, id: diva2:1354925
External cooperation
LN Akustikmiljö AB
Educational program
Bachelor of Science in Engineering - Constructional Engineering and Design
Projects
Akustik, platongolv.Available from: 2019-09-26 Created: 2019-09-26

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