Acoustic evaluation and adjustment of an open-plan office through architectural design and noise control

Passero, Carolina Reich Marcon; Zannin, Paulo Henrique Trombetta

doi:10.1016/j.apergo.2012.03.007

Cited by 34 publications

(19 citation statements)

References 21 publications

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“…In papers [27,28], authors studied the noise level in office premises, but did not propose the ways to solve the problem. The authors of [29] explored the acoustic properties of the "Open space" office and made conclusions that it is necessary to use partitions and sound absorbing ceiling in order to increase acoustic comfort.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Determining the effect of multifunctional partitions on noise level at "Open space" offices

Berezutskyi

Ilinska

Vaskovets

et al. 2019

EEJET

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Розглянуто багатофункціональні перегородки та їх вплив на рівні шуму. Звернуто увагу на те, що існуючи системи класифікації будівельних перегородок розглядають їх, виходячи із зручності їх використання, матеріалу, дизайну тощо. При цьому недостатньо приділяють уваги їх впливу на показники зменшення рівня шуму у офісних приміщеннях. Перегородки виготовляють з різних матеріалів, які мають різні властивості, є різними за формою, на різній відстані від полу перекривають приміщення або робочий простір. У таких випадках виникає складна задача вибору певних типів перегородок, які, як це показано у роботі, дозволяють вирішити завдання оптимізації умов праці та зменшити негативний вплив шуму на здоров'я працівників. Виконані дослідження довели, що поставлена задача зменшення шуму завдяки використання перегородок досягається. Фактори, які особливо потрібно врахувати: висота перегородки (ступень перекриття перегородкою відстані до стелі), матеріал перегородок, наявність технологічних отворів та геометрію їх розташування. Виявлено, що двошарові перегородки, які виконано з важких матеріалів (густина ≈2500 кг/м 3 ) та перекривають на 100 % приміщення за висотою, здатні зменшувати рівень шуму в 2-3 рази (із 90 дБА до 30-45 дБА). Перегородки із скла (труби скляні), середньої ваги (густина ≈1200 кг/м 3 ), зменшують шум в 1,5-1,6 раз. Якщо перекриття приміщення не повне або є отвори, вентиляційні шахти тощо, то ефект впливу перегородок значно зменшується, зводячи його практично нанівець. Відчутний вплив перегородок відбувається у частотному діапазоні 200-3000 Гц при рівнях шуму 40-60 дБА. Шум досліджувався у приміщеннях типу «Open space», де були застосовані різні варіанти перегородок (скляні труби у металевому каркасі, керамічні плити, пінопластові плити). У результаті досліджень було встановлено, що перегородки можуть суттєво впливати на показники шуму, але тільки за умов повного перекриття приміщення по висоті, зачинених дверях і будівельних каналів у стінах. Встановлено, що матеріал перегородок не впливає на показники шуму, якщо ступінь перекриття не повна (менш 100 %). Дослідження довели перспективність наукового обґрунтування застосування перегородок та визначення зв'язку перекриття приміщення із факторами, які впливають на працівників задля поліпшення умов праці, яке в свою чергу дозволить зменшити профзахворюваність, мінімізувати плинність кадрів, підвищити ефективність праціКлючові слова: офіс типу «Open space», локалізація робочого простору, шум, будівельні перегородки UDC 331.45:657.47

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Determining the effect of multifunctional partitions on noise level at "Open space" offices

Berezutskyi

Ilinska

Vaskovets

et al. 2019

EEJET

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“…Based on those simulation models, effects of different factors were investigated. Using the acoustic rays and particle tracing technology, Passero and Zannin [32] evaluated the acoustic quality of real openplan office and improved the acoustic condition of the office by performing modifications on the office room. Their study concluded that divider panels between the work stations and ceilings with high sound-absorbing materials could ensure the acoustic quality.…”

Section: Reverberation Time Predictionmentioning

confidence: 99%

“…In real situations, reverberation time of a room is affected by many factors, including room size [4,23], enclosure shape [13], materials of walls and ceilings [32], absorption of seats and audiences [11,12,25]. In the acoustic design process, all those factors require careful considerations.…”

Section: Introductionmentioning

confidence: 99%

Improving Indoor Acoustics Performance of Concert Halls Using Building Information Modeling

Tan¹,

Fang²,

Zhou³

et al. 2017

Proceedings of the International Symposium on Automation and Robotics in Construction (IAARC)

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Indoor acoustics is usually an important criterion of evaluating the performance of building rooms such as concert halls, lecture rooms, and wards. Indoor acoustic simulation during architecture design and before room decoration can improve room acoustic performance. However, 3D room modeling usually takes much time before acoustic simulation. Building information modeling (BIM) is currently widely applied through life cycle of a building because it dramatically improves modeling efficiency by providing both geometric and semantic information. This study aims at integrating BIM technology with acoustic simulation to improve indoor acoustic performance. A BIM model containing information of three main factors affecting indoor acoustic, namely architecture geometry, speaker position, and decoration materials, is built and slightly modified so that it can be used to conduct acoustic simulation. Acoustic simulations with different architecture geometries, speaker locations, and decoration materials were performed to study how indoor acoustic performance was affected by examining variation of reverberation time, which is an important indoor acoustic evaluation criteria. Sensitivity analysis of the three main factors that affect indoor acoustics was also conducted. Finally, the acoustic simulation results with BIM and without BIM were compared. It was found that the simulation results were the same and the acoustic simulation time was reduced by using BIM.KeywordsArchitecture design, BIM, Decoration Materials, Indoor Acoustic Simulation, Speaker Position IntroductionAcoustic performance is an important aspect that has to be carefully considered in the design and construction process of buildings, especially for buildings with specific acoustic requirements, such as lecture rooms or concert halls. Once a building is constructed, it would be very costly in both finance and manpower to fix inappropriate acoustic performance. Therefore, it is necessary to conduct acoustic simulation and prediction to help designers and engineers to analyze the acoustic performance of a building in the design stage.To evaluate the acoustic performance of a building, a couple of parameters are commonly used, including reverberation time (RT), sound intensity level, noise, sound uniformity and intelligibility [41]. This study focuses on the reverberation time since it is one of the most important indicators and can be calculated by relatively simple equations. Reverberation time is defined as the time required for reflections of a direct sound to decay 60dB. The preferred reverberation time is dependent on the purpose of buildings. For classrooms, the recommended reverberation time is tenths of seconds [33], whereas for larger buildings such as concert halls, this value usually varies from 1 to 2 seconds [26,27].Although many simulation methods are available, prediction of building acoustic performance is still a very complicated work. In real situations, reverberation time of a room is affected by many factors, including room size [...

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“…Among the different physical discomforts derived from poor IEQ, fatigue condition and sick building syndrome have been reported as the most common discomforts in buildings (Musa et al, 2012;Mendell and Heath, 2004;Tarcan and Varol, 2004;Frontczak and Wargocki, 2011;Issa et al, 2011). Studies also show that the health impairment of students and teachers resulting from poor IEQ could influence students' performance, behavior, and productivity (Mendell and Heath, 2004;Treputtharata and Tayiam, 2014;Lee et al, 2012;Earthman, 2004;Huang et al, 2012;Passero andZannin, 2012 andHawes et al, 2012). Uline and Moran (2008) have reported the lack of tendency of academics to focus when the learning process is taking place in imperfect environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

“…Physical comfort, which refers to satisfaction of fundamental needs of occupants such as adequate lighting and space allocation for each individual, and psychological comforts, involving satisfaction of occupants with their colleagues, management, and feeling of enjoyment are factors associated with the occupants' comfort with regard to IEQ. Many studies (Montzamani et al, 2012;Putih et al, 2014;Mendell and Heath, 2004;Treputtharata and Tayiam, 2014;Sulaiman et al, 2013;Lee et al, 2012;Huang et al, 2012;Passero andZannin, 2012 andHawes et al, 2012) have identified the contribution of both physical and psychological factors associated with the occupants' satisfaction in various workplaces. However, the concept of IEQ has gained more prominence as the lifestyle in developed countries has resulted people spending the majority of their time (approximately 90%) within indoor environments (U.…”

Section: Introductionmentioning

confidence: 99%

A quantitative evaluation of indoor environmental quality in refurbished kindergarten buildings: A Malaysian case study

Salleh

Kamaruzzaman

Riley

et al. 2015

Building and Environment

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A quantitative evaluation of indoor environmental quality in refurbished kindergarten buildings: A Malaysian case study http://researchonline.ljmu.ac.uk/2559/ Article LJMU has developed LJMU Research Online for users to access the research output of the University more effectively. Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Users may download and/or print one copy of any article(s) in LJMU Research Online to facilitate their private study or for non-commercial research. You may not engage in further distribution of the material or use it for any profit-making activities or any commercial gain.The version presented here may differ from the published version or from the version of the record. Please see the repository URL above for details on accessing the published version and note that access may require a subscription. AbstractIn the Malaysian context, the coverage of kindergarten education has improved dramatically in recent times although many kindergartens are located in buildings that were not originally designed for that purpose. Indoor Environmental Quality (IEQ) is considered to be one of the most important factors affecting the physical development of children. Hence, it is essential to evaluate the indoor conditions of those kindergartens which are based in buildings that have been refurbished and adapted from their original purpose for kindergarten usage. It is posseted that such refurbished environments provide suboptimal IEQ to support appropriate conditions for kindergarten use which is reflected in user perception and satisfaction. This study presents the results of the IEQ investigations conducted in refurbished kindergarten buildings in Malaysia with the cardinal focus on identifying occupants' satisfaction with the various IEQ factors. The study aims to utilize the results of this work to develop a benchmark for analogous studies. A total of 240 refurbished kindergarten buildings in Malaysia were studied to evaluate occupants' perceptions and levels of satisfaction. The results indicate that the occupants found "Air Movement", "Ventilation", and "Freshness" to be of a poor quality due to the high occupancy density. The "Noise" factor was the least satisfactory IEQ factor due to closeness of the kindergartens to the main roads (external noise), as well as the small size of classrooms (internal noise). Moreover, it was found that "Color" and "Attractiveness" are the most important IEQ factors from the occupants'viewpoint. This study provides a practical benchmark in conversion of buildings' usage.

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Acoustic evaluation and adjustment of an open-plan office through architectural design and noise control

Cited by 34 publications

References 21 publications

Determining the effect of multifunctional partitions on noise level at "Open space" offices

Determining the effect of multifunctional partitions on noise level at "Open space" offices

Improving Indoor Acoustics Performance of Concert Halls Using Building Information Modeling

A quantitative evaluation of indoor environmental quality in refurbished kindergarten buildings: A Malaysian case study

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