Acoustic Comfort in Atria Covered by Novel Structural Skins

Urbán, Dániel; Zrnekova, Julia; Zaťko, Peter; Maywald, Carl; Rychtáriková, Monika

doi:10.1016/j.proeng.2016.08.039

Cited by 15 publications

(9 citation statements)

References 5 publications

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“…While these glass panels can be frequently used to cover wide surfaces and roofs where they are able to preserve an appropriate lightening level for the interior rooms, further severe acoustic issues could derive from the so called Lombard effect, and namely consisting of a reflex of vocal chords. This phenomenon is strictly related to the vocal intensity, voice frequency, word duration, etc., but may result in unpleasant performances and thus unpleasant feelings for the occupants [102][103][104].…”

Section: Textiles For Acoustic and Uv-absorption Comfort And Of Glassmentioning

confidence: 99%

“…could derive from the so called Lombard effect, and namely consisting of a reflex of vocal chords. This phenomenon is strictly related to the vocal intensity, voice frequency, word duration, etc., but may result in unpleasant performances and thus unpleasant feelings for the occupants [102][103][104].…”

Section: Textiles For Acoustic and Uv-absorption Comfort And Of Glassmentioning

confidence: 99%

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Textiles and Fabrics for Enhanced Structural Glass Facades: Potentials and Challenges

Bedon

Rajčić

2019

Buildings

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The use of textiles in architecture can cover a wide set of solutions and functions, spanning from buildings, towards geotechnical, aeronautic or automotive fields, etc. Special applications involve textiles in the health care or dressing scenarios. A multitude of other functions can then be found relatively for the use of textiles in building engineering and facades. As far as traditional facades or roofs composed of glass are taken into account, textiles offer a relevant number of potential uses that are specifically focused on energy, acoustic, insulation and even structural goals, in addition to pure architectural objectives. It is known that glass is relatively versatile, but has intrinsic needs and thermo-physical and mechanical features that require dedicated design methods, towards safe design purposes. Glass itself, in the form of constructional material, cannot be directly compared to other consolidated solutions for buildings. The same concept applies to textiles, and to their use to enhance other building components. Besides the key advantages deriving from the use of textiles in glass facades and envelopes—in the form of light, thermal or acoustic insulation, or energy efficiency—special care must be spent for specific structural requirements and performances. In some cases, textiles can in fact offer enhanced resistance to ordinary glass structures. In other conditions, textiles in combination with glass can ensure also enhanced acoustic and thermal performances. A multidisciplinary design approach able to properly fit several objectives should be considered. This paper aims at exploring the actual knowledge on glass textiles, with a focus on available tools and research trends, with careful consideration for structural glass facade applications.

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Section: Textiles For Acoustic and Uv-absorption Comfort And Of Glassmentioning

confidence: 99%

Section: Textiles For Acoustic and Uv-absorption Comfort And Of Glassmentioning

confidence: 99%

Textiles and Fabrics for Enhanced Structural Glass Facades: Potentials and Challenges

Bedon

Rajčić

2019

Buildings

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“…As proposed by Urban et al (2016), the application of micro-perforated foils in one of the mezzanine floors, the atrium, will not only significantly improve the noise levels and sound reverberation, but will also result in sufficient speech intelligibility, which can be achieved only by the combination of the vertical structure and acoustical placement of the absorptive material on the vertical structure as an armature. However, the study of the acoustics will be focused on providing sufficient space, and discussion of materials will be made separately, specific to the density of the interior mass to obtain the suggested frequency.…”

Section: Optimization Of Architectural Electroacousticsmentioning

confidence: 99%

Optimization of Architectural Electroacoustics Design for the Interior Mezzanines of Vertical Buildings

Samodra¹

2018

IJTech

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The science that deals with the transformation of electrical energy into acoustic energy or vice versa, electroacoustics, generates an increased intensity and loudness of sound by mechanical and/or electrical means. It should be designed simultaneously with the consideration of room acoustics. A vertical building is usually designed separately from the architectural aspect and other technical considerations. An interior mezzanine has unique sound propagating characteristics because its balconies could be an element of the room acoustic reflectors and absorbers, shelters from noise and barriers to sound propagation. For optimum music and speech activities, a hybrid active design strategy using electroacoustics combined with a passive method is used. This research optimizes the room acoustic criteria of different building models as building systems integrated with loudspeakers. Ecotect Analysis and additional audio programming determine the overall process by simulating all potential variables. The results show that 5 m is the recommended minimum distance of column-loudspeaker placement for mezzanine floors. With the same loudspeaker power and frequency specifications, the vertical structure, as the armature of electroacoustic orientation, and the interior materials are the most critical variables in determining reverberation time optimization.

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“…Eine grundlegende Einführung in die Technologie sowie in die Anwendungsmöglichkeiten in der Architektur findet sich im Buch von Annette LeCuyer " ETFE -Technologie und Entwurf" [1]. Mit der zunehmenden Bedeutung, die dem Aspekt der Nachhaltigkeit im Bereich der Architektur beigemessen wird, hat das Bauen mit ETFE aufgrund des geringen Materialeinsatzes und der damit verbundenen geringen Umweltbelastung immer mehr an Bedeutung gewonnen [2], [3]. Das erste unter Einsatz dieser Technologie mit Folien im Jahr 1982 gebaute Projekt war die Mangrovenhalle im Burger's Zoo in Arnheim in den Niederlanden.…”

Section: Einführungunclassified

Zum Alterungsverhalten von ETFE‐Konstruktionen in der Architektur

Maywald¹,

Mißfeld²

2018

Stahlbau

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Das Alterungsverhalten von ETFE‐Folien in Gebäudeanwendungen wurde sowohl unter dem Gesichtspunkt der chemischen Struktur als auch hinsichtlich möglicher Änderungen der mechanischen Eigenschaften untersucht. Die vergleichende Untersuchung von neuen und gealterten Folien mit Hilfe der Raman‐Spektroskopie zeigte keine Änderungen der chemischen Struktur. Auch unter Einsatz einer speziellen statistischen Methode konnte kein Unterschied zwischen alten und neuen ETFE‐Folien festgestellt werden. Der durch einen Hagelschaden bedingte Austausch des ersten jemals gebauten ETFE‐Foliendaches ermöglichte erstmals die vergleichende Untersuchung des Einflusses von natürlichen Umwelteinflüssen einschließlich mechanischer Belastungen an ETFE‐Folienproben mit Folien aus dem Archiv bzw. mit neuen Folien aus aktueller Produktion. Mono‐Axial‐Tests zeigten für ETFE‐Folien aus realen Projekten eine signifikant erhöhte Steifigkeit bei 10 % Dehnung. Um dieses für Bauprodukte ungewöhnliche Alterungsverhalten zu verstehen, wurde ein Verfahren entwickelt, mit welchem unter Einsatz von zyklischen bi‐axialen Belastungen das Alterungsverhalten von ETFE‐Folien simuliert werden kann. Diese Methode wurde sowohl auf Proben aus realen Projekten wie auch auf neue Folienproben aus laufender aktueller Produktion angewendet.

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Acoustic Comfort in Atria Covered by Novel Structural Skins

Cited by 15 publications

References 5 publications

Textiles and Fabrics for Enhanced Structural Glass Facades: Potentials and Challenges

Textiles and Fabrics for Enhanced Structural Glass Facades: Potentials and Challenges

Optimization of Architectural Electroacoustics Design for the Interior Mezzanines of Vertical Buildings

Zum Alterungsverhalten von ETFE‐Konstruktionen in der Architektur

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