Subjects -> BUILDING AND CONSTRUCTION (Total: 139 journals)
    - BUILDING AND CONSTRUCTION (131 journals)
    - CARPENTRY AND WOODWORK (8 journals)

BUILDING AND CONSTRUCTION (131 journals)                     

Showing 1 - 35 of 35 Journals sorted alphabetically
A+BE : Architecture and the Built Environment     Open Access   (Followers: 20)
Academia : Architecture and Construction     Open Access   (Followers: 3)
ACI Structural Journal     Full-text available via subscription   (Followers: 20)
Advances in Building Education     Open Access   (Followers: 6)
Advances in Building Energy Research     Hybrid Journal   (Followers: 11)
Anales de Edificación     Open Access  
Asian Journal of Civil Engineering     Hybrid Journal   (Followers: 2)
Australasian Journal of Construction Economics and Building     Open Access   (Followers: 8)
Baltic Journal of Real Estate Economics and Construction Management     Open Access   (Followers: 5)
Bautechnik     Hybrid Journal   (Followers: 1)
Beton- und Stahlbetonbau     Hybrid Journal   (Followers: 1)
Building & Management     Open Access   (Followers: 2)
Building Acoustics     Hybrid Journal   (Followers: 4)
Building Services Engineering Research & Technology     Hybrid Journal   (Followers: 3)
Buildings     Open Access   (Followers: 7)
BUILT : International Journal of Building, Urban, Interior and Landscape Technology     Open Access   (Followers: 3)
Built Environment Inquiry Journal     Open Access  
Built Environment Project and Asset Management     Hybrid Journal   (Followers: 13)
Built-Environment Sri Lanka     Full-text available via subscription  
Case Studies in Construction Materials     Open Access   (Followers: 8)
Cement     Open Access   (Followers: 2)
Cement and Concrete Composites     Hybrid Journal   (Followers: 18)
Cement and Concrete Research     Hybrid Journal   (Followers: 18)
Challenge Journal of Concrete Research Letters     Open Access   (Followers: 5)
Challenge Journal of Concrete Research Letters     Open Access   (Followers: 4)
Change Over Time     Full-text available via subscription   (Followers: 3)
City, Culture and Society     Hybrid Journal   (Followers: 23)
Cityscape     Full-text available via subscription   (Followers: 10)
Clay Technology     Full-text available via subscription  
Concreto y cemento. Investigación y desarrollo     Open Access  
Construction Economics and Building     Open Access   (Followers: 4)
Construction Engineering     Open Access   (Followers: 9)
Construction Management and Economics     Hybrid Journal   (Followers: 24)
Construction Research and Innovation     Hybrid Journal   (Followers: 4)
Construction Robotics     Hybrid Journal   (Followers: 4)
Corporate Real Estate Journal     Full-text available via subscription   (Followers: 4)
Dams and Reservoirs     Hybrid Journal   (Followers: 3)
Developments in the Built Environment     Open Access  
Energy and Built Environment     Open Access  
Engineering Project Organization Journal     Hybrid Journal   (Followers: 6)
Engineering, Construction and Architectural Management     Hybrid Journal   (Followers: 11)
Environment and Urbanization Asia     Hybrid Journal   (Followers: 2)
Facilities     Hybrid Journal   (Followers: 4)
Frontiers in Built Environment     Open Access   (Followers: 1)
FUTY Journal of the Environment     Full-text available via subscription  
Glass Structures & Engineering     Hybrid Journal   (Followers: 1)
HBRC Journal     Open Access  
Housing and Society     Hybrid Journal   (Followers: 6)
HVAC&R Research     Hybrid Journal  
Indoor and Built Environment     Hybrid Journal   (Followers: 4)
Informes de la Construcción     Open Access  
Intelligent Buildings International     Hybrid Journal   (Followers: 2)
International Journal of Advanced Structural Engineering     Open Access   (Followers: 26)
International Journal of Air-Conditioning and Refrigeration     Hybrid Journal   (Followers: 12)
International Journal of Architectural Computing     Full-text available via subscription   (Followers: 5)
International Journal of Built Environment and Sustainability     Open Access   (Followers: 3)
International Journal of Concrete Structures and Materials     Open Access   (Followers: 10)
International Journal of Construction Engineering and Management     Open Access   (Followers: 9)
International Journal of Construction Management     Hybrid Journal   (Followers: 4)
International Journal of Disaster Resilience in the Built Environment     Hybrid Journal   (Followers: 4)
International Journal of Housing Markets and Analysis     Hybrid Journal   (Followers: 11)
International Journal of Masonry Research and Innovation     Hybrid Journal  
International Journal of Protective Structures     Hybrid Journal   (Followers: 4)
International Journal of River Basin Management     Hybrid Journal  
International Journal of Structural Stability and Dynamics     Hybrid Journal   (Followers: 7)
International Journal of Sustainable Building Technology and Urban Development     Hybrid Journal   (Followers: 14)
International Journal of Sustainable Construction Engineering and Technology     Open Access   (Followers: 8)
International Journal of Sustainable Real Estate and Construction Economics     Hybrid Journal   (Followers: 2)
International Journal of the Built Environment and Asset Management     Hybrid Journal   (Followers: 5)
International Journal of Ventilation     Full-text available via subscription  
Journal for Education in the Built Environment     Open Access   (Followers: 3)
Journal of Aging and Environment     Hybrid Journal   (Followers: 4)
Journal of Architecture, Planning and Construction Management     Open Access   (Followers: 12)
Journal of Asian Architecture and Building Engineering     Open Access  
Journal of Building Construction and Planning Research     Open Access   (Followers: 10)
Journal of Building Engineering     Hybrid Journal   (Followers: 4)
Journal of Building Materials and Structures     Open Access   (Followers: 2)
Journal of Building Pathology and Rehabilitation     Hybrid Journal  
Journal of Building Performance Simulation     Hybrid Journal   (Followers: 5)
Journal of Civil Engineering and Construction Technology     Open Access   (Followers: 14)
Journal of Civil Engineering and Management     Open Access   (Followers: 8)
Journal of Computational Acoustics     Hybrid Journal   (Followers: 5)
Journal of Computing in Civil Engineering     Full-text available via subscription   (Followers: 22)
Journal of Construction Business and Management     Open Access   (Followers: 4)
Journal of Construction Engineering     Open Access   (Followers: 10)
Journal of Construction Engineering, Technology & Management     Full-text available via subscription   (Followers: 6)
Journal of Facilities Management     Hybrid Journal   (Followers: 3)
Journal of Green Building     Full-text available via subscription   (Followers: 10)
Journal of Legal Affairs and Dispute Resolution in Engineering and Construction     Full-text available via subscription   (Followers: 4)
Journal of Property, Planning and Environmental Law     Hybrid Journal   (Followers: 6)
Journal of Structural Fire Engineering     Full-text available via subscription   (Followers: 4)
Journal of Sustainable Cement-Based Materials     Hybrid Journal  
Journal of Sustainable Design and Applied Research in Innovative Engineering of the Built Environment     Open Access   (Followers: 2)
Journal of the South African Institution of Civil Engineering     Open Access   (Followers: 2)
Journal of Transport and Land Use     Open Access   (Followers: 28)
Journal of Urban Technology and Sustainability     Open Access   (Followers: 1)
Landscape History     Hybrid Journal   (Followers: 16)
Materiales de Construcción     Open Access   (Followers: 1)
Mauerwerk     Hybrid Journal  
Modular and Offsite Construction (MOC) Summit Proceedings |     Open Access  
Naval Engineers Journal     Hybrid Journal   (Followers: 1)
Nordic Concrete Research     Open Access  
Open Construction & Building Technology Journal     Open Access  
PARC Pesquisa em Arquitetura e Construção     Open Access  
Proceedings of the Institution of Civil Engineers - Forensic Engineering     Hybrid Journal  
Proceedings of the Institution of Civil Engineers - Urban Design and Planning     Hybrid Journal   (Followers: 11)
Revista ALCONPAT     Open Access  
Revista de la Construcción     Open Access  
Revista de Urbanismo     Open Access   (Followers: 2)
Revista Hábitat Sustenable     Open Access  
Revista Ingenieria de Construcción     Open Access   (Followers: 1)
Revista INVI     Open Access  
RILEM Technical Letters     Open Access  
Room One Thousand     Open Access  
Ruang-Space: Jurnal Lingkungan Binaan (Journal of The Built Environment)     Open Access  
Russian Journal of Construction Science and Technology     Open Access  
Science and Technology for the Built Environment     Hybrid Journal  
Smart and Sustainable Built Environment     Hybrid Journal   (Followers: 8)
Steel Construction - Design and Research     Hybrid Journal   (Followers: 4)
Stroitel’stvo : Nauka i Obrazovanie     Open Access  
Structural Concrete     Hybrid Journal   (Followers: 4)
Structural Mechanics of Engineering Constructions and Buildings     Open Access   (Followers: 2)
Sustainable Buildings     Open Access   (Followers: 3)
Sustainable Cities and Society     Hybrid Journal   (Followers: 22)
Technology|Architecture + Design     Hybrid Journal  
Terrain.org : A Journal of the Built & Natural Environments     Free   (Followers: 3)
The Historic Environment : Policy & Practice     Hybrid Journal   (Followers: 4)
The IES Journal Part A: Civil & Structural Engineering     Hybrid Journal   (Followers: 5)
The Journal of Integrated Security and Safety Science (JISSS)     Open Access   (Followers: 11)
Tidsskrift for boligforskning     Open Access  

           

Similar Journals
Journal Cover
Building Acoustics
Journal Prestige (SJR): 0.215
Citation Impact (citeScore): 1
Number of Followers: 4  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1351-010X - ISSN (Online) 2059-8025
Published by Sage Publications Homepage  [1174 journals]
  • A scoping review of the effects of classroom acoustic conditions on
           primary school children’s mental wellbeing

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      Authors: Kiri Mealings
      Abstract: Building Acoustics, Ahead of Print.
      The aim of this scoping review was to systematically map research on the effect of classroom acoustic conditions on children’s mental wellbeing and identify existing gaps in knowledge to inform future research. This scoping review followed the PRISMA-ScR protocol. A comprehensive search of four online databases (ERIC, PubMed, Scopus, and Web of Science) was conducted using the search term classroom AND (acoustic* OR noise OR reverb*) AND (“mental health” OR emotion OR wellbeing OR “quality of life” OR anxiety OR depression). Peer-reviewed papers were included if they were written in English, included children in the primary school age range (i.e. 5–12 years), and included a measure of children’s mental wellbeing. Six papers met the criteria to be included in the review. Overall, this review suggests that poor classroom acoustic conditions can negatively affect children’s mental wellbeing. Given the small number of studies, future research suggestions are proposed to fill current gaps in knowledge.
      Citation: Building Acoustics
      PubDate: 2022-08-08T11:53:39Z
      DOI: 10.1177/1351010X221117899
       
  • Acoustical characterization of three Ottoman masjids built in Algeria

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      Authors: Mohamed Ladaoui Benferhat, Samira Debache Benzagouta, Abdelouahab Bouttout, Francesco Martellotta
      Abstract: Building Acoustics, Ahead of Print.
      This paper aims at evaluating the acoustical quality of historical Ottoman masjids in Algeria. Measurements were carried out according to current international standards, allowing calculation of acoustical parameters including reverberation time, speech transmission index and Clarity. Three Ottoman masjids located in Algiers (Jedid, Ali-Bitchin, and Safir) were selected. The main purpose of the study was to evaluate the acoustics of the prayer hall in relation to its worship use, assuming as a reference studies of existing masjids. Results showed that two of three worship spaces are generally reverberant under unoccupied conditions (with mid frequency reverberation times of about 3 s), while the other has reverberation time of about 1 s at medium frequencies. Speech intelligibility under unoccupied conditions is between poor and fair for Jedid and Ali-Bitchin masjids, while in Safir masjid values were generally above 0.6. Presence of architectural elements made C50 values quite scattered and characterized by a clear non-symmetrical distribution. Calculations to consider the effect of occupancy were also performed, resulting in significantly drier acoustics with improved clarity.
      Citation: Building Acoustics
      PubDate: 2022-07-23T09:57:57Z
      DOI: 10.1177/1351010X221113000
       
  • Acoustical optimization of mufflers hybridized with spiral perforated
           tubes using finite element method, Artificial Neural Network, and Genetic
           Algorithm

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      Authors: Min-Chie Chiu, Ying-Chun Chang
      Abstract: Building Acoustics, Ahead of Print.
      Because venting noise emitted from high pressure valve often occurred in industry and is huge, the noise abatement of the venting noise to protect human’s hearing health is necessary. In order to depress the high speed noise, a muffler internally equipped with spiral perforated tube is presented. To mitigate this noise, a dissipative muffler with perforated spiral tube installed on the pipeline is proposed. To evaluate the acoustical performance, a finite element method using COMSOL software is adopted. Also, the sensitivity analyses of Transmission Loss (TL) of the proposed muffler with respect to (1) diameter of the spiral and perforated tube (D), (2) pitch of the spiral tube (L), (3) acoustical impedance of the dissipative acoustic material (R), and (4) perforation rate of a perforated tube (σ) has been carried out. For the optimization studies, both Artificial Neural Network (ANN) and Genetic Algorithm (GA) to optimize the muffler parameters L and D are applied. Here, two high target frequencies (2000 and 3500 Hz) to optimize the proposed muffler are exemplified. Consequently, the hybrid design of perforated spiral tube optimized using ANN and GA will mitigate the high pressure valve noise efficiently.
      Citation: Building Acoustics
      PubDate: 2022-07-19T10:18:06Z
      DOI: 10.1177/1351010X221109995
       
  • The influence of the acoustic performance in the certification of a school
           buildings according to the ITACA protocol

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      Authors: Samantha Di Loreto, Fabio Serpilli, Valter Lori, Costanzo Di Perna
      Abstract: Building Acoustics, Ahead of Print.
      The study and analysis of the processes that determine environmental sustainability of buildings are nowadays topics of great interest for the sustainable, economic and social development of the cities. The international context presents guidelines and protocols for the energy-environmental sustainability, often aimed to assigning a sustainability label to the buildings. In Italy one of the most used rating systems is the ITACA Protocol, recently updated by the Italian Standard UNI/Pdr 2019, which through a series of criteria identifies global indicators of the sustainability of the building examined. This paper presents the potential of the ITACA protocol which could be a method for designing innovative and efficient architectures. In particular, the aspects related to the acoustic comfort are examined and how these criteria change the overall performance of a building. The evaluation of the sustainability performance was applied to a school building. Results show that an optimal acoustic quality improve over to 2 point of the final protocol score.
      Citation: Building Acoustics
      PubDate: 2022-07-07T11:10:36Z
      DOI: 10.1177/1351010X221109763
       
  • Study of the acoustic performance of composites made from recycled
           cellulose acetate and polymer waste

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      Authors: Rubén Maderuelo-Sanz, Francisco José García-Cobos, Francisco José Sánchez-Delgado
      Abstract: Building Acoustics, Ahead of Print.
      The main objective of this study is to evaluate the acoustic behaviour of composites made by mixing cellulose acetate, from recycled cigarette butts, with polymers such as polyethylene and polypropylene, from recycled plastic containers and surgical masks, respectively. For this purpose, the spectra of the measured sound absorption coefficients and the calculated NRC and SAA indices of samples with thicknesses of 1.5, 3, 4.5, 6 and 7.5 cm are analysed. The results of both experiments reveal that the studied composites present a sound absorption capacity comparable to that of fibre glass and rock wool, being even more efficient for thicknesses greater than 4.5 cm. Moreover, the acoustical properties of the composites are predicted using the Miki model over the frequency range from 100 to 6400 Hz, showing very accurate predictions of the sound absorption spectrum at normal incidence.
      Citation: Building Acoustics
      PubDate: 2022-06-22T12:34:05Z
      DOI: 10.1177/1351010X221103677
       
  • Morphological analysis of porosity and sound absorption in sustainable
           materials from rice husk

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      Authors: Begoña Peceño, EM Perez-Soriano, Jose David Ríos, Yolanda Luna-Galiano, Hector Cifuentes, Carlos Leiva Fernández
      Abstract: Building Acoustics, Ahead of Print.
      This study proposes a composite material that incorporates rice husk. This research focuses on an experimental analysis of the physical, mechanical and acoustic performance of composite materials made of rice-husk waste. Various ratios of rice husk/resins have been employed. Complementary, X-ray computed tomography technique has been used to characterise a representative and extensive volume of material at the pore level, ranging from pore sizes of 100 μm to several millimetres Furthermore, detailed information of key factors of pore properties inside the matrix (pore size, sphericity, position, tortuosity and permeability) has been provided. All the compositions present high sound-absorption coefficients, with noise-reduction coefficients ranging from 0.39 to 0.52, and suitable compressive strength (>1 MPa). From the results, when the rice husk/resin ratio was decreased, the pore size fell between 1 and 4 mm, and the permeability reduced; in contrast, the compressive strength increased, although the sound absorption capacity diminished.
      Citation: Building Acoustics
      PubDate: 2022-06-17T12:22:09Z
      DOI: 10.1177/1351010X221103674
       
  • Classroom acoustics and cognition: A review of the effects of noise and
           reverberation on primary school children’s attention and memory

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      Authors: Kiri Mealings
      Abstract: Building Acoustics, Ahead of Print.
      Classroom acoustic conditions are often suboptimal, so how do they affect children’s cognition' This review synthesized research assessing the effect of different classroom acoustic conditions on children’s attention and memory. A comprehensive search of four online databases was conducted in January 2022 using the search term classroom AND (noise* OR reverberat* OR acoustic*) AND (cognit* OR attention OR memory OR processing). The results revealed 21 relevant papers plus an additional 10 from their references. The papers assessed the effect of a range of chronic and acute acoustic exposures on different attention and memory processes. Overall, the majority of studies showed a negative effect or no effect of higher noise levels, longer reverberation times, or lower speech clarity on children’s cognition. It would therefore be beneficial to improve classroom acoustic conditions if possible. Suggestions for future research to more fully understand the effect of different classroom acoustic conditions on children’s cognition are posed.
      Citation: Building Acoustics
      PubDate: 2022-06-15T06:45:05Z
      DOI: 10.1177/1351010X221104892
       
  • Acoustical simulation of pneumatic mufflers hybridized with metal sintered
           bronze porous material, a spiral tube, and expansion cones

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      Authors: Min-Chie Chiu, Ying-Chun Chang
      Abstract: Building Acoustics, Ahead of Print.
      This paper aims to eliminate the pneumatic noise using a muffler hybridized with a metal sintered bronzed porous material, a spiral tube, and expansion cones. In this paper three kinds of mufflers (Muffler A: with part AA (a bronze-made sintered porous inlet); Muffler B: with part BB (a casing with a spiral tube and expansion cones); and Muffler C: part AA (a bronze-made sintered porous inlet) + part BB (a casing with a spiral tube and expansion cones)) have been introduced. A finite element method run on the COMSOL software will be adopted in the acoustical analysis of the mufflers. The influence of TL with respect to two kinds of design parameters (QQ: the number of expansion cone; σ1: the acoustical flowing impedance of the acoustical wool) has been assessed. Simulated results reveal that the muffler C with acoustical components of AA and BB is superior to the other two mufflers. Moreover, the design parameters of QQ and σ1 have essential acoustical influence to the muffler C.
      Citation: Building Acoustics
      PubDate: 2022-06-08T05:31:29Z
      DOI: 10.1177/1351010X221103332
       
  • Sound insulation prediction method for single and spot laminated
           multilayer panels

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      Authors: Joaquín Mansilla, Laurence Bender, Leonardo Pepino, María Sol Brito
      Abstract: Building Acoustics, Ahead of Print.
      Single-leaf panels made from homogeneous and isotropic materials are commonly used in buildings. However, it is often necessary to add various layers of the same or different materials in order to increase the acoustic insulation. This article presents a prediction method for the calculation of the sound reduction index that comprises single panels and multilayer panels joined together using spot techniques, such as by screws. The method is based on previous single-leaf panel models extended to multilayer structures. The predicted values are compared with panel measurements obtained according to ISO 140-3. The sound reduction index R in third octave bands, the weighted sound reduction index Rw, and the spectral adaptation terms (C, Ctr) are examined. In addition, predictions from two commercial software tools are evaluated and compared. Statistically, the results show that the proposed method gives values that agree well with the measurements, both for single and multilayer panels.
      Citation: Building Acoustics
      PubDate: 2022-06-07T07:26:21Z
      DOI: 10.1177/1351010X221101969
       
  • Experimental study of impulse sound transmission between rooms

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      Authors: Nikolay Kanev, Alexander Fadeev
      Abstract: Building Acoustics, Ahead of Print.
      This paper presents experimental results of a study of the sound transmission between two rooms in one of which an intensive short impulse is radiated. The room with the source is treated by a sound absorber to reduce reflections and provide a pure impulse impact on a partition separating the rooms. The influences of the source and receiver positions, acoustic conditions in the receiver room and energy of the impulse are investigated and analyzed. It has been shown that all these factors affect the impulse sound transmission, which is proposed to be described by two coefficients. The first one is a ratio of peak sound pressure values in both rooms, the second one is the similar ratio only for peak-to-peak values. Some results correlate with theoretical assumptions, but the others differ significantly. So, the theoretical approaches to the impulse sound transmission or dynamic transmission loss need to be developed as well as the impulse sound insulation of building elements should be clearly defined and studied.
      Citation: Building Acoustics
      PubDate: 2022-06-07T07:24:21Z
      DOI: 10.1177/1351010X221101466
       
  • Timber hollow-box floors: Sound insulation measurement results and
           analysis

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      Authors: Anders Homb, Simone Conta
      Abstract: Building Acoustics, Ahead of Print.
      We performed measurements of the sound reduction index and impact sound pressure level for a range of lightweight floating floors installed on a hollow-box timber floor. The measurements were performed in the laboratory according to the relevant standards. We tested different configurations, varying the cavity filling of the bare floor and the assembly of the lightweight floating floor. We tested floating floors with a continuous elastic layer with high and low dynamic stiffness, floating floors on elastic load-bearing units and a basic vinyl covering of the bare floor. The results show that a wide range of sound insulation can be achieved, making the hollow-box floor elements suitable for different purposes. Best performance is achieved with elastic load-bearing units installed on the bare floor with gravel in the cavity. Detailed analysis of the achievable sound insulation improvement is also given. This shows that reasonably reliable predictions can be made using well-known equations from the literature. Key parameters are the resonance frequency of the system, determined by the mass per unit area of the bare floor and of the floating floor as well as the dynamic stiffness of the resilient layer, and the configuration of the elastic layer. The results and the highlighted prediction equation offer a solid basis to help develop solutions to meet different sound insulation requirements and make the hollow-box floor elements suitable for urban buildings with several purposes, ranging from office/commercial to educational and residential.
      Citation: Building Acoustics
      PubDate: 2022-06-07T01:17:04Z
      DOI: 10.1177/1351010X221100604
       
  • How a quartet of theatres plays under an acoustic perspective: A
           comparison between horseshoe shaped plans in Campania

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      Authors: Antonella Bevilacqua, Silvana Sukaj, Giuseppe Ciaburro, Gino Iannace, Ilaria Lombardi, Amelia Trematerra
      Abstract: Building Acoustics, Ahead of Print.
      Many of the Italian Opera theatres built in small towns have not been deeply studied under an acoustic perspective compared to the most famous ones. This paper focuses the attention on small-sized theatres characterized by a horseshoe-shaped plan layout. The determination of the acoustic properties has been outlined by performing acoustic surveys inside each theatre. By analyzing the measured data, the results show comparable outcomes found inside the selected halls, with a negligible difference among them. Overall, all the four theatres have a good speech response, ranging between 0.60 and 0.74 in terms of sound transmission index (STI), with a small merit attributed to Benevento. These considerations should be combined with the sound perception with regard to the music performed inside these theatres. A trade-off between these two aspects has been well matched by the architects who were in charge to design these memorable places that nowadays are still impressive although not so many spotlights are given to them.
      Citation: Building Acoustics
      PubDate: 2022-03-04T12:17:06Z
      DOI: 10.1177/1351010X221080769
       
  • Phononic metamaterial for efficient sound attenuation applications

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      Authors: Nikos Aravantinos-Zafiris, Mihail M Sigalas, Dionysios TG Katerelos
      First page: 203
      Abstract: Building Acoustics, Ahead of Print.
      In this work, a phononic metamaterial suitable for several sound attenuation applications is numerically and experimentally examined. The proposed structure consists of a combination of spheres in a face-centered cubic arrangement with rods that form the Yablonovite Structure. The Sound Transmission Loss of the structure is experimentally examined. In addition, numerical calculations of the Sound Transmission Loss were performed by using the Finite Element Method. The research includes experimental and numerical validation of different geometric parameters of the structure. The Sound Transmission Loss of the proposed structure found to have wide values over a wide frequency range of the audio spectrum. The findings of this research strongly indicate that the proposed metamaterial is a powerful candidate for efficient sound attenuation applications.
      Citation: Building Acoustics
      PubDate: 2022-02-18T07:12:19Z
      DOI: 10.1177/1351010X221078937
       
  • Vibration level reduction by floor coverings installed on wooden slabs

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      Authors: Jesse Lietzén, Mikko Kylliäinen, Saveli Valjakka, Sami Pajunen
      First page: 221
      Abstract: Building Acoustics, Ahead of Print.
      Effect of floor coverings on impact sound insulation can be described with a vibration level reduction (ΔLa). In this study, tests with two floor coverings, eight wooden slabs and with a concrete mock-up slab were conducted by applying the method presented by Sommerfeld and the standard ISO 16251-1. The aim was to study the differences affecting the measured ΔLa and the behaviour of the floor coverings installed on different slabs. The results suggest that the ΔLa on concrete slabs do not correspond with the ΔLa on wooden slabs. Thus, the floor coverings should be measured on wooden slabs when they are to be used within the timber construction industry. The results also show that the coverings should be measured on the wooden slabs where the products are expected to be used. In addition, a standardized test method for the wooden slabs corresponding the method of ISO 16251-1 should be developed.
      Citation: Building Acoustics
      PubDate: 2022-02-25T11:37:36Z
      DOI: 10.1177/1351010X221080613
       
  • Investigation of the use of ISO 16251-1 for the obtaining of acoustic
           insulation on floating floor

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      Authors: Gerardo Braga Alves Nogueira Braga Neto, Gabriel Soares Quixaba, Jeferson De Oliveira Bezerra, Sérgio De Souza Custódio Filho, Gustavo da Silva Vieira de Melo, Alexandre Luiz Amarante Mesquita
      First page: 239
      Abstract: Building Acoustics, Ahead of Print.
      ISO 16251-1 standard describes an alternative method for the experimental obtaining of acoustic parameters reduction of the impact sound pressure level (ΔL) and weighted reduction of the impact sound pressure level (ΔLw) for soft floor coverings through vibration measurements on a small floor mock-up. The application of the methodology to floating floor systems is of great interest, since, compared to the conventional method (ISO 10140-3), it is less costly and would require smaller specimens. However, previous studies have revealed an influence of the modal behavior of the slab on the sound insulation in the frequency range, causing the ΔL curves to show abrupt oscillations (peaks and valleys), thus deviating from the reliable insulation values and decreasing their accuracy. This study proposes the use of ISO 16251-1 for the evaluation of floating floor systems investigating the main factors that influence the accuracy of laboratory tests and the performance of the devices, namely dynamic stiffness of the resilient layer, total loss factor, and dimensions in the floating slab area. The results of ΔL and ΔLw obtained according to ISO 16251-1 were compared to those of two analytical models and the conventional method for 17 samples of floating mortar screeds of 0.96 and 0.36 m2 areas, 10.8–340.6 MN m−3 dynamic stiffness, and 0.04–0.39 total loss factor. The 0.96 m2 samples showed less abrupt oscillations in the ΔL curves than those of 0.36 m2, and the oscillations recorded for resilient layers of above 68.4 MN m−3 stiffness were minimal when the larger floating slab was used.
      Citation: Building Acoustics
      PubDate: 2022-04-21T10:28:48Z
      DOI: 10.1177/1351010X221092526
       
  • Acoustic modeling of honeycomb structures for second load direction with
           damping consideration

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      Authors: Saber Saffar
      First page: 263
      Abstract: Building Acoustics, Ahead of Print.
      The control of low-frequency noise in buildings has become a critical issue because of the inadequate sound insulation in low frequencies (
      Citation: Building Acoustics
      PubDate: 2022-04-23T10:43:28Z
      DOI: 10.1177/1351010X221094470
       
  • A review of the application of green walls in the acoustic field

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      Authors: Feng Yan, Jingjing Shen, Wuxia Zhang, Leiting Ye, Xinfeng Lin
      First page: 295
      Abstract: Building Acoustics, Ahead of Print.
      Green wall technology, including green façades and living walls, presents a promising solution to encounter the negative impacts of noise pollution. Research and development of green walls are steadily progressing in multiple fields, including but not limited to the environmental, social, and economic areas. Compared to other themes, the number of acoustic studies of green walls is relatively low and lacks relevant review papers. The purpose of this paper is to give a systematic review of the application of green walls in the acoustic field and clarify the key factors that influence the acoustic performance of green walls and the main obstacles that obstruct the broader application of green walls. A total number of 34 papers published in the past 10 years are reviewed. This study identifies that the acoustic applications of green walls are mainly in four aspects, namely laboratory applications, outdoor applications, indoor applications, and audio-visual applications. Vegetation morphology and properties of substrates are the two crucial factors determining green facades and living walls’ acoustic properties, respectively. High installation, operation, and maintenance costs and plant-induced problems are recognized as the main obstructions. A few possible topics are recommended for future study as well.
      Citation: Building Acoustics
      PubDate: 2022-05-09T08:38:16Z
      DOI: 10.1177/1351010X221096789
       
 
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