Subjects -> BUILDING AND CONSTRUCTION (Total: 146 journals)
    - BUILDING AND CONSTRUCTION (138 journals)
    - CARPENTRY AND WOODWORK (8 journals)

BUILDING AND CONSTRUCTION (138 journals)                     

Showing 1 - 35 of 35 Journals sorted alphabetically
A+BE : Architecture and the Built Environment     Open Access   (Followers: 34)
Academia : Architecture and Construction     Open Access   (Followers: 2)
Advances in Building Education     Open Access   (Followers: 8)
Advances in Building Energy Research     Hybrid Journal   (Followers: 13)
Ambiente Construído     Open Access   (Followers: 1)
Anales de Edificación     Open Access   (Followers: 1)
Asian Journal of Civil Engineering     Hybrid Journal   (Followers: 1)
Australasian Journal of Construction Economics and Building     Open Access   (Followers: 10)
Australasian Journal of Construction Economics and Building - Conference Series     Open Access   (Followers: 1)
Baltic Journal of Real Estate Economics and Construction Management     Open Access   (Followers: 3)
Baurechtliche Blätter : bbl     Hybrid Journal  
Bautechnik     Hybrid Journal   (Followers: 3)
BER : Architects and Quantity Surveyors' Survey     Full-text available via subscription   (Followers: 6)
BER : Building and Construction : Full Survey     Full-text available via subscription   (Followers: 12)
BER : Building Contractors' Survey     Full-text available via subscription   (Followers: 2)
BER : Building Sub-Contractors' Survey     Full-text available via subscription   (Followers: 2)
BER : Capital Goods Industries Survey     Full-text available via subscription  
BER : Survey of Business Conditions in Building and Construction : An Executive Summary     Full-text available via subscription   (Followers: 3)
Beton- und Stahlbetonbau     Hybrid Journal   (Followers: 2)
Building & Management     Open Access   (Followers: 3)
Building Acoustics     Hybrid Journal   (Followers: 4)
Building Research Journal     Open Access   (Followers: 4)
Building Services Engineering Research & Technology     Hybrid Journal   (Followers: 3)
Buildings     Open Access   (Followers: 8)
BUILT : International Journal of Building, Urban, Interior and Landscape Technology     Open Access   (Followers: 1)
Built Environment Inquiry Journal     Open Access  
Built Environment Project and Asset Management     Hybrid Journal   (Followers: 16)
Built-Environment Sri Lanka     Full-text available via subscription  
Case Studies in Construction Materials     Open Access   (Followers: 10)
Cement and Concrete Composites     Hybrid Journal   (Followers: 22)
Cement and Concrete Research     Hybrid Journal   (Followers: 22)
Challenge Journal of Concrete Research Letters     Open Access   (Followers: 7)
Challenge Journal of Concrete Research Letters     Open Access   (Followers: 6)
Change Over Time     Full-text available via subscription   (Followers: 3)
City, Culture and Society     Hybrid Journal   (Followers: 26)
Civil Engineering = Siviele Ingenieurswese     Full-text available via subscription   (Followers: 4)
Clay Technology     Full-text available via subscription  
Concreto y cemento. Investigación y desarrollo     Open Access   (Followers: 1)
Construction Economics and Building     Open Access   (Followers: 4)
Construction Engineering     Open Access   (Followers: 11)
Construction Management and Economics     Hybrid Journal   (Followers: 23)
Construction Research and Innovation     Hybrid Journal   (Followers: 4)
Construction Robotics     Hybrid Journal   (Followers: 3)
Corporate Real Estate Journal     Full-text available via subscription   (Followers: 6)
Dams and Reservoirs     Hybrid Journal   (Followers: 4)
Developments in the Built Environment     Open Access   (Followers: 1)
Energy and Built Environment     Open Access   (Followers: 1)
Engineering Project Organization Journal     Hybrid Journal   (Followers: 8)
Engineering, Construction and Architectural Management     Hybrid Journal   (Followers: 10)
Environment and Urbanization Asia     Hybrid Journal   (Followers: 4)
Facilities     Hybrid Journal   (Followers: 4)
Frontiers in Built Environment     Open Access   (Followers: 1)
FUTY Journal of the Environment     Full-text available via subscription   (Followers: 1)
Gaceta Técnica     Open Access  
GISAP : Technical Sciences, Construction and Architecture     Open Access  
Glass Structures & Engineering     Hybrid Journal  
Handbook of Adhesives and Sealants     Full-text available via subscription   (Followers: 2)
HBRC Journal     Open Access   (Followers: 2)
Heritage Matters : The Magazine for New Zealanders Restoring, Preserving and Enjoying Our Heritage     Full-text available via subscription   (Followers: 2)
Housing and Society     Hybrid Journal   (Followers: 6)
HVAC&R Research     Hybrid Journal  
Indoor and Built Environment     Hybrid Journal   (Followers: 3)
Informes de la Construcción     Open Access  
Intelligent Buildings International     Hybrid Journal   (Followers: 1)
International Journal of Advanced Structural Engineering     Open Access   (Followers: 25)
International Journal of Air-Conditioning and Refrigeration     Hybrid Journal   (Followers: 17)
International Journal of Architectural Computing     Full-text available via subscription   (Followers: 7)
International Journal of Built Environment and Sustainability     Open Access   (Followers: 8)
International Journal of Concrete Structures and Materials     Open Access   (Followers: 16)
International Journal of Construction Engineering and Management     Open Access   (Followers: 11)
International Journal of Construction Management     Hybrid Journal   (Followers: 4)
International Journal of Disaster Resilience in the Built Environment     Hybrid Journal   (Followers: 7)
International Journal of Housing Markets and Analysis     Hybrid Journal   (Followers: 10)
International Journal of Masonry Research and Innovation     Hybrid Journal   (Followers: 1)
International Journal of Protective Structures     Hybrid Journal   (Followers: 6)
International Journal of River Basin Management     Hybrid Journal   (Followers: 1)
International Journal of Structural Stability and Dynamics     Hybrid Journal   (Followers: 7)
International Journal of Sustainable Building Technology and Urban Development     Hybrid Journal   (Followers: 13)
International Journal of Sustainable Built Environment     Open Access   (Followers: 7)
International Journal of Sustainable Construction Engineering and Technology     Open Access   (Followers: 9)
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   (Followers: 1)
International Journal Sustainable Construction & Design     Open Access   (Followers: 4)
Journal for Education in the Built Environment     Open Access   (Followers: 3)
Journal of Aging and Environment     Hybrid Journal   (Followers: 6)
Journal of Architecture, Planning and Construction Management     Open Access   (Followers: 11)
Journal of Asian Architecture and Building Engineering     Open Access  
Journal of Building Construction and Planning Research     Open Access   (Followers: 11)
Journal of Building Engineering     Hybrid Journal   (Followers: 4)
Journal of Building Materials and Structures     Open Access   (Followers: 3)
Journal of Building Pathology and Rehabilitation     Hybrid Journal  
Journal of Building Performance Simulation     Hybrid Journal   (Followers: 8)
Journal of Civil Engineering and Construction Technology     Open Access   (Followers: 16)
Journal of Civil Engineering and Management     Open Access   (Followers: 9)
Journal of Computational Acoustics     Hybrid Journal   (Followers: 6)
Journal of Computing in Civil Engineering     Full-text available via subscription   (Followers: 22)
Journal of Construction Engineering     Open Access   (Followers: 9)
Journal of Construction Engineering, Technology & Management     Full-text available via subscription   (Followers: 6)
Journal of Construction Project Management and Innovation     Full-text available via subscription   (Followers: 8)
Journal of Facilities Management     Hybrid Journal   (Followers: 6)
Journal of Green Building     Full-text available via subscription   (Followers: 12)
Journal of Legal Affairs and Dispute Resolution in Engineering and Construction     Full-text available via subscription   (Followers: 5)
Journal of Property, Planning and Environmental Law     Hybrid Journal   (Followers: 4)
Journal of Structural Fire Engineering     Full-text available via subscription   (Followers: 6)
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: 26)
Landscape History     Hybrid Journal   (Followers: 14)
Materiales de Construcción     Open Access   (Followers: 2)
Mauerwerk     Hybrid Journal  
Modular and Offsite Construction (MOC) Summit Proceedings |     Open Access   (Followers: 4)
Naval Engineers Journal     Hybrid Journal   (Followers: 2)
Open Construction & Building Technology Journal     Open Access  
Organization, Technology and Management in Construction     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: 13)
Revista ALCONPAT     Open Access   (Followers: 2)
Revista de la Construcción     Open Access  
Revista de Urbanismo     Open Access   (Followers: 2)
Revista Hábitat Sustenable     Open Access   (Followers: 1)
Revista IBRACON de Estruturas e Materiais     Open Access   (Followers: 1)
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 Engineering of Composite Materials     Open Access   (Followers: 62)
Science and Technology for the Built Environment     Hybrid Journal   (Followers: 1)
Smart and Sustainable Built Environment     Hybrid Journal   (Followers: 8)
Steel Construction - Design and Research     Hybrid Journal   (Followers: 5)
Stroitel’stvo : Nauka i Obrazovanie     Open Access  
Structural Concrete     Hybrid Journal   (Followers: 10)
Structural Mechanics of Engineering Constructions and Buildings     Open Access   (Followers: 2)
Sustainable Buildings     Open Access   (Followers: 2)
Sustainable Cities and Society     Hybrid Journal   (Followers: 26)
Technology|Architecture + Design     Hybrid Journal : A Journal of the Built & Natural Environments     Free   (Followers: 3)
The Historic Environment : Policy & Practice     Hybrid Journal   (Followers: 6)
The IES Journal Part A: Civil & Structural Engineering     Hybrid Journal   (Followers: 6)
Tidsskrift for boligforskning     Open Access  
YBL Journal of Built Environment     Open Access  
Zeitschrift für Miet- und Raumrecht     Hybrid Journal  


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  [1141 journals]
  • Experimental study on the insertion loss of multilayer panels featuring a
           periodic structure
    • Authors: Preeti Gulia, Arpan Gupta
      Abstract: Building Acoustics, Ahead of Print.
      Acoustic panels with different configurations (layered structure with different absorbing materials) are broadly used to attenuate the noise. Multiple panels are preferred due to the presence of multiple air cavities and the repeated reflections which lead to increased sound attenuation. The paper presents an experimental study of sound propagation through multiple panels. A novel design of acoustic panel is proposed by incorporating the sonic crystal in the air cavities of the panel. Sonic crystal (SC) consists of a periodic arrangement of sound hard scatterers which provide the sound reduction in a particular frequency range due to destructive interference in periodic scatterers. The results are based on experimental observations which are supported by the literature. The results show that increasing the number of panels increases the sound insertion loss from the multiple panel structure. However, the panels with air cavity suffer from the sound insertion loss dip, which makes the panel ineffective. The novel acoustic panel (double and triple panel with SC) provides an additional sound reduction due to SC which can be tailored for certain frequency band. For the present case, SC is designed to overcome the insertion loss dip. The novel panel provides an additional insertion loss, reaching a maximum value of 19 and 11 dB, respectively (for the double and triple panel), overcoming the insertion loss dip due to structural vibration.
      Citation: Building Acoustics
      PubDate: 2021-03-19T05:15:29Z
      DOI: 10.1177/1351010X211001551
  • Airborne sound insulation prediction of masonry walls using artificial
           neural networks
    • Authors: Serpilli Fabio, Di Nicola Giovanni, Pierantozzi Mariano
      Abstract: Building Acoustics, Ahead of Print.
      In this paper, an alternative method for the calculation of masonry walls sound insulation is investigated. Thirty-four simple monolithic brick walls were examined. For the considered walls, the measurements made by accredited laboratories in compliance with ISO 10140 standard were collected. For each building element, the experimental measurements and all the information concerning the geometric and physical characteristics of all the components (material, dimensions, mass, density, Young’s modulus, Poisson’s module, hole content, etc.) were classified. Then, from the collection of measurements obtained in the standard laboratories and the division of them into homogeneous groups, a statistical sensitivity analysis to determine the most statistically significant parameter for the sound insulation of building walls was carried out. This analysis was a useful tool for selecting parameters to be used in forecast models and for calculating statistical effects. Finally, an alternative method based on the use of artificial neural networks (ANN) was proposed. This paper discusses the results obtained by applying the models to a specific kind of construction: the masonry walls. The results will show a good correlation of the values obtained on this first type of building construction. This encourages the extension of the method explained in this work to other types of walls.
      Citation: Building Acoustics
      PubDate: 2021-02-26T06:03:37Z
      DOI: 10.1177/1351010X21994462
  • On best acoustical parameters’ values for ‘Liederistic’ music
           performance: A preliminary study
    • Authors: P. Domenighini
      Abstract: Building Acoustics, Ahead of Print.
      ‘Liederistic’ music is a musical genre on which architectural acoustical research is rarely focused. Despite this lack of scholarship, however, this genre represents one of the most interesting challenges for acoustical problem solving. In fact, it combines speech and music comprehension requirements in a fascinating manner to illuminate elements of both the magnification of the musical score and the hidden tension of a sung poetry text. To individualise the main characteristics of this genre, a multidisciplinary approach is taken, starting from a musical point of view. A knowledge and comprehension of music is a fundamental step to determine the parameters that allow for the best performance and listening experience of this particular music. Consequently, an introduction to the physics and acoustical characteristics of the singing voice and the piano is given, specifically highlighting the technological development of the piano since the 18th century. Through a combination of historical, architectural, and interior design research, a possible location of the original performance is recreated to investigate the probable primal acoustic conditions using computational analysis. Various contemporary chamber music halls were then considered and compared to the reconstructed location to investigate whether actual places exist with similar acoustic conditions.
      Citation: Building Acoustics
      PubDate: 2021-02-17T10:10:17Z
      DOI: 10.1177/1351010X21994973
  • A data acquisition setup for data driven acoustic design
    • Authors: Romana Rust, Achilleas Xydis, Kurt Heutschi, Nathanael Perraudin, Gonzalo Casas, Chaoyu Du, Jürgen Strauss, Kurt Eggenschwiler, Fernando Perez-Cruz, Fabio Gramazio, Matthias Kohler
      Abstract: Building Acoustics, Ahead of Print.
      In this paper, we present a novel interdisciplinary approach to study the relationship between diffusive surface structures and their acoustic performance. Using computational design, surface structures are iteratively generated and 3D printed at 1:10 model scale. They originate from different fabrication typologies and are designed to have acoustic diffusion and absorption effects. An automated robotic process measures the impulse responses of these surfaces by positioning a microphone and a speaker at multiple locations. The collected data serves two purposes: first, as an exploratory catalogue of different spatio-temporal-acoustic scenarios and second, as data set for predicting the acoustic response of digitally designed surface geometries using machine learning. In this paper, we present the automated data acquisition setup, the data processing and the computational generation of diffusive surface structures. We describe first results of comparative studies of measured surface panels and conclude with steps of future research.
      Citation: Building Acoustics
      PubDate: 2021-02-15T04:45:02Z
      DOI: 10.1177/1351010X20986901
  • Sound insulation of a hollow concrete blocks wall made with construction
           and demolition waste and wood-based panels as linings
    • Authors: Rodrigo Scoczynski Ribeiro, Raylton Pereira de Sousa, Rosemara Santos Deniz Amarilla, Luis Henrique Sant’Ana, Márcio Avelar, Rodrigo Eduardo Catai, Adalberto Matoski
      Abstract: Building Acoustics, Ahead of Print.
      It is a well-discussed topic that Construction and Demolition Waste (CDW) can be recycled and used as aggregate in the construction sector. Generally, Brazilian construction techniques are based on hollow blocks or bricks and mortars as coating systems. This paper describes the sound insulation of a masonry wall built with hollow concrete blocks and CDW as aggregates. The measurements were performed according to the reverberant chamber method. Keeping sustainability in mind instead of applying cement mortar as coating system, Oriented Strand Boards (OSB) and Wood-Wool Cement Boards (WWCB) were used and also tested as acoustical linings. The panels were directly attached on the wall with nails in the receiving room. All types of panels increased the weighted sound reduction index ([math]). Wood-based composites can also improve the air quality because of their hygroscopic properties. In summary, sustainable wall systems were characterized according to their sound insulation properties, presented as possible substitutes for traditional masonry walls.
      Citation: Building Acoustics
      PubDate: 2021-02-13T06:57:57Z
      DOI: 10.1177/1351010X21993640
  • Case study: A survey of perceived noise in Canadian multi-unit residential
           buildings to study long-term implications for widespread teleworking
    • Authors: Maedot S. Andargie, Marianne Touchie, William O’Brien
      Abstract: Building Acoustics, Ahead of Print.
      Trends of urbanization, densification, and telework all point to increasing exposure to ambient noise for workers. With the lockdown policies implemented in response to COVID-19, a research opportunity to study perceived noise exposure for teleworking arose. This paper presents the results of a survey on noise issues in multi-unit residential buildings (MURBs) and the consequent effects on occupants' well-being and productivity during the lockdown. Responses were collected from 471 MURB occupants across Canada. The results show that, despite the decrease in environmental noise, many are annoyed by outdoor noise, particularly from traffic and construction activities, and indicated that it affects their ability to work. Effects on ability to work from home were more frequently reported for indoor noise sources particularly airborne and impact noises coming from neighboring suites. Our findings, however, show that noise coming from occupants in the same suite (i.e. roommates and family) present the biggest issue. The findings indicate that existing noise conditions in MURBs might not be suitable for a permanent large-scale implementation of teleworking.
      Citation: Building Acoustics
      PubDate: 2021-02-09T08:41:14Z
      DOI: 10.1177/1351010X21993742
  • Development of tomography–transmission electron microscope (TEM)
           specimen holder stable under acoustic disturbances
    • Authors: Khaled Bataineh
      Abstract: Building Acoustics, Ahead of Print.
      This paper focuses on the development of tomography—transmission electron microscope (TEM) specimen holder stable under environment effect that allows atomic resolution. The successful holder must be dynamically stable for accuracy and image processes to obtain an atomic resolution, with a minimum controllable drift of the sample position. Different strategies to reduce the effect of acoustic disturbances are investigated. The approach to the problem has been two-fold, numerical and experimental. The effect of mechanical and acoustic noise is analyzed. Finite element results match very well previous experimental results and observations. Theoretical analysis showed that air pressure fluctuations have a significant impact on microscopes with side entry goniometers, especially when the exciting frequency matches a vibration mode of the sample holder. For example, finite element analysis (FEA) predicts that the tip deflections are 4.5 Å and 0.09 Å under air pressure excitation of 64 and 40 dB respectively. Utilizing a sandwiched constrained damping shell layer made of viscoelastic material that partially covers the inner part of TEM holder body successfully decreased the vibration. Finite element simulations predict that a shell layer of viscoelastic material with a thickness equal to the 1/10 of the body holder diameter reduces the vibrations by 30%. The viscoelastic layer shell thickness, loss factor, and elastic modulus have a strong effect on the damping behavior and the optimal combination should be determined.
      Citation: Building Acoustics
      PubDate: 2021-01-27T07:12:06Z
      DOI: 10.1177/1351010X21989494
  • Parameter analysis and modification of transmission loss models for
           multi-layered cavity walls
    • Authors: Yaw-Shyan Tsay, Chuan-Hsuan Lin
      Abstract: Building Acoustics, Ahead of Print.
      Multi-layer cavity wall (MCW) systems, which refer to each panel in the structure being made up of two or more layers of lightweight board, have become more widely used. However, unlike the detailed approaches that were available for predicting single-layer cavity walls (SCW), few studies have addressed the MCW involving different layers attached together. In this research, we applied two theoretical models of SCW, analyzed the key parameters and modify to have appropriate application for MCW. The predictive capability of the models was then evaluated by comparing them with results of experiment and commercial software. The results showed that Sharp’s model was suggested only when the thickness of the steel stud of about 0.75 mm. Through modifying the input values of the compliance of steel (CM), attenuation factor (F) and the limiting angle of incident (θL) in Davy’s model, and the prediction of the proposed model showed great consistent with experiments.
      Citation: Building Acoustics
      PubDate: 2021-01-18T07:56:27Z
      DOI: 10.1177/1351010X20987355
  • Directional sound field decay analysis in performance spaces
    • Authors: Marco Berzborn, Michael Vorländer
      Abstract: Building Acoustics, Ahead of Print.
      The analysis of the spatio-temporal features of sound fields is of great interest in the field of room acoustics, as they inevitably contribute to a listeners impression of the room. The perceived spaciousness is linked to lateral sound incidence during the early and late part of the impulse response which largely depends on the geometry of the room. In complex geometries, particularly in rooms with reverberation reservoirs or coupled spaces, the reverberation process might show distinct spatio-temporal characteristics.In the present study, we apply the analysis of directional energy decay curves based on the decomposition of the sound field into a plane wave basis, previously proposed for reverberation room characterization, to general purpose performance spaces. A simulation study of a concert hall and two churches is presented uncovering anisotropic sound field decays in two cases and highlighting implications for the resulting temporal evolution of the sound field diffuseness.
      Citation: Building Acoustics
      PubDate: 2021-01-04T12:15:30Z
      DOI: 10.1177/1351010X20984622
  • A case study of acoustic intervention in classrooms
    • Authors: Ajish K Abraham, M S Ravishankar
      Abstract: Building Acoustics, Ahead of Print.
      High reverberation times (RTs) have always been an acoustic barrier to effective learning in classrooms. Acoustic corrections to reduce RT involve complex acoustic treatment. Previous studies have indicated that classrooms in most schools do not meet the established acoustic criteria, as the school authorities refrain from such acoustic treatment. Aim of the study was to optimize the RT within classrooms through easily-implementable acoustic corrections. Different combinations of acoustic corrections have been experimented in eight classrooms, through a step-by-step approach to optimize RT. After each acoustic modification, the RT was measured and the speech clarity parameter C50, was estimated. At the final step, RT of the classrooms was diminished to a mean value of 0.74 s (standard deviation = 0.04) from the initial mean value of 4.37 s (standard deviation = 0.42). C50 values corresponding to the final acoustic correction were found to fall within good speech intelligibility scale.
      Citation: Building Acoustics
      PubDate: 2020-11-25T06:10:36Z
      DOI: 10.1177/1351010X20975765
  • Stage acoustics and parametric design: The development of an integrated
           early design tool
    • Authors: Javier Sanz Soriano, Oliver Wright, Elisabeth van den Braak, Christopher Day
      Abstract: Building Acoustics, Ahead of Print.
      Traditional ray tracing software tools (e.g. Odeon, CATT-Acoustic, EASE) enable detailed analysis of stage acoustics; however, they are typically undertaken in later design stages and lack the flexibility required for early design development. This paper, which follows from a poster presentation at ISRA 2019, investigates the use of a three-dimensional modelling platform (Rhinoceros/Grasshopper) to quickly assess the influence of architectural changes on reflections that support orchestral ensemble. This approach enables immediate feedback, a more creative design process and better integration of architecture and acoustics. Early reflections have been found to be vital for effective orchestral ensemble. Therefore, the study focused on the investigation of early energy distribution on stage with ray tracing analysis using a parametric tool. This tool also considers cross-stage shielding effects from the orchestra and the directivity of instruments. The results of the tool have been compared to an existing acoustic modelling software to determine its accuracy and reliability. Additionally, the expansion of the tool with an evolutionary solver has also been explored. The development of a Rhinoceros/Grasshopper design tool has been found to be beneficial in the analysis of stage conditions and enhances the design collaboration during early design phases.
      Citation: Building Acoustics
      PubDate: 2020-11-20T06:36:43Z
      DOI: 10.1177/1351010X20971102
  • Acoustic optimization of curved architecture in practice: The new Strait
           Cultural Arts Center in Fuzhou
    • Authors: Yann Jurkiewicz, Henrik Moller, Thomas Wulfrank, Jingbo Wang, Eckhard Kahle
      Abstract: Building Acoustics, Ahead of Print.
      Curved surfaces are increasingly part of the architectural language used in buildings for the performing arts, yet have known challenges both in reality and in ray-tracing-based computer simulations. The designs of the 1000-seat symphony hall, the 1600-seat opera house and the 800-seat multi-purpose hall in Fuzhou, China, were all based on curved surfaces, both convex and concave, often covered with local ceramic tiles. Providing the right amount, distribution and quality of early reflections thus required a precise analysis of the acoustic behavior of curved surfaces. The acoustic design interacted with the architecture in precisely shaping those curves in 3D. In order to explore the acoustic potential and detect problems related to the architectural concept of both rooms, novel geometrical acoustics analysis algorithms were developed within NURBS modeling software rather than relying on commercial ray-tracing algorithms. Optimization of the curved surfaces is obtained when the output of these algorithms, the interpretation of the acoustic consultant, and the required integration of acoustic solutions within the global architectural concept are all aligned – a “meeting of minds” between acoustics and architecture. The analysis procedure and geometrical acoustics algorithms used will be presented in detail, as well as the related decision-making process, the acoustic predictions and the measurement results of the three built halls.
      Citation: Building Acoustics
      PubDate: 2020-11-10T09:49:24Z
      DOI: 10.1177/1351010X20968714
  • The acoustics of ancient catacombs in Southern Italy
    • Authors: Giuseppe Ciaburro, Umberto Berardi, Gino Iannace, Amelia Trematerra, Virginia Puyana-Romero
      Abstract: Building Acoustics, Ahead of Print.
      The catacombs, burial sites for early Christians, were constructed during the Roman Empire until the Christian religion was recognized in 313 AD. The catacombs were cementeries, which were organized according to precise rules and were dug into the ground on several levels, to occupy as little space as possible. The catacombs became places of worship as martyrs were buried in them. The catacombs were then abandoned with the barbarian invasions and the consequent construction of churches inside cities. The catacombs were rediscovered during the Renaissance period and became a place of renewed worship. In the present work, the acoustic characteristics of the catacombs of San Callisto in Rome, San Gennaro in Naples, and Vigna Cassia in Syracuse are discussed. The three selected catacombs differ by type of excavation and geometry. In particular, the catacombs of San Callisto are made of narrow corridors and small rooms; the catacombs of San Gennaro consist of large rooms with niches; the catacombs of Vigna Cassia are partly excavated in the tuff and partially occupy a disused aqueduct. The acoustic measurements were performed using an impulsive sound source. The description of the acoustic characteristics focuses on the reverberation time and the Speech Transmission Index. The results show that the reverberation time was always shorter than 1 second, confirming the reduced reverberation of these environments. Finally, the speech listening characteristics are particularly good, ensuring the suitable conditions for the prayer in these spaces.
      Citation: Building Acoustics
      PubDate: 2020-10-28T10:36:17Z
      DOI: 10.1177/1351010X20967571
  • A performance-based optimization approach for diffusive surface topology
    • Authors: Louena Shtrepi, Tomás Mendéz Echenagucia, Elena Badino, Arianna Astolfi
      Abstract: Building Acoustics, Ahead of Print.
      Different numerical techniques have been used in the last decades for the acoustic characterization and performance optimization of sound diffusive surfaces. However, these methods require very long calculation times and do not provide a rapid feedback. As a result, these methods can hardly be applied by designers at early stages of the design process, when successive design iterations are necessary from an aesthetic point of view. A suitable alternative could be the use of parametric modeling in combination with performance investigations during the design process of sound diffusive surfaces. To this aim, this study presents a design process for diffusive surfaces topology optimization based on the combination of parametric models and geometrical acoustic simulations. It aims to provide architects and designers with rapid visual feedback on acoustic performances at a preliminary stage of the design process. The method has been tested on different case studies, which have been modelled based on geometric guidelines for diffusive surface optimization. The sensitivity of the method showed that it could be a very useful tool for comparisons among surface design alternatives. Finally, the advantages and limitations of the integrated optimization in comparison with conventional optimizations are discussed.
      Citation: Building Acoustics
      PubDate: 2020-10-28T10:35:47Z
      DOI: 10.1177/1351010X20967821
  • Noise reduction performance of a low energy façade-integrated
           mechanical ventilator
    • Authors: Marco A Oliveira, Luis Bragança, Sandra M Silva, Dinara Paixão, Julieta António
      Abstract: Building Acoustics, Ahead of Print.
      Acoustic comfort and indoor air quality are essential for the health and wellbeing of the occupants of the building. Thus, the façade must guarantee enough sound insulation and ventilation conditions. However, these aspects conflict because opening windows or using ventilation openings reduces the sound insulation of the envelope and allows the exterior noise entrance. To limit noise transmission into the building, ventilators use passive, active or hybrid noise control techniques. This work addresses the noise reduction performance of a mechanical ventilator for façades, evaluating the effect of different options of passive noise control strategies in the sound insulation of the proposed ventilator. In addition, the air change rate and energy consumption of the ventilator were also investigated. Three prototypes were fabricated and tested at an acoustic chamber, along with ventilation tests carried out in a room equipped with a blower door. CFD simulations were used to enhance the aeraulic geometry of the prototypes, prior to its fabrication. The acoustic experiments showed Dn,e,w values up to 55 dB and noise emission levels lower than 25 dB(A). The use of resistive sound absorbers proved to be more effective in mitigating noise than reactive absorbers, over the entire frequency range. The ventilation tests revealed air change rates of 3.7 h−1 at 50 Pa, while the ventilator’s annual energy consumption was 17.52 kWh. The results highlight the proposed device as a viable alternative for decentralised mechanical ventilation, capable of ensuring noise protection and satisfactory ventilation rates, under a sustainable perspective of minimum energy demand.
      Citation: Building Acoustics
      PubDate: 2020-10-26T06:29:32Z
      DOI: 10.1177/1351010X20966185
  • Sound insulation of timber hollow box floors: Collection of laboratory
           measurement data and trend analysis
    • Authors: Anders Homb, Simone Conta, Christoph Geyer, Niko Kumer
      Abstract: Building Acoustics, Ahead of Print.
      The industrialisation of timber buildings has improved strongly in recent years. When long span is required, timber hollow-box floor elements are increasingly used due to their structural performance. The aim of this paper is to assess the acoustic performance of timber hollow-box floors, determine the governing parameters and identify the corresponding trends. We collected results from laboratory measurements covering both airborne and impact sound insulation from four different laboratories covering a wide range of application. Data include the bare floor constructions and their combination with different floating floors including both lightweight solutions and hybrid solution. We performed the analysis focusing on following parameters: element stiffness, element mass per unit area, dynamic stiffness of the resilient layer, cavity filling and floating floor material. We present the collected data both frequency-dependent and as single number quantities. General trends and features are identified in the frequency-dependent diagrams. A further detailed analysis is based on the single number quantities. It includes a general relationship between element mass per unit area and given requirements for R’W + C50-5000 and L’n,w + CI,50-2500. Furthermore, diagrams are presented illustrating the dependence of impact sound insulation numbers on the cavity filling, the dynamic stiffness of the resilient layer and the type of material used for the floating floor. The additional mass in the cavity improves both airborne and impact sound insulation by minimum 10 dB. This, combined with a floating floor, allows the fulfilment of a wide range of requirements.
      Citation: Building Acoustics
      PubDate: 2020-10-24T07:31:18Z
      DOI: 10.1177/1351010X20966157
  • A ray tracing engine integrated with Blender and with uncertainty
           estimation: Description and initial results
    • Authors: Eric Brandão, Gonçalo Morgado, William D’A Fonseca
      Abstract: Building Acoustics, Ahead of Print.
      This paper presents a ray tracing algorithm developed as a research and teaching tool. The motivations to pursue this task and some novel features of the algorithm are presented. Amongst them, it is possible to cite: (i) the receivers may grow in size, which saves some computational cost; (ii) sound intensity calculations are performed in a separate step than geometrical ray tracing; and (iii) those features allow Monte Carlo simulations for uncertainty prediction related to absorption data. The results obtained with the proposed algorithm are compared with the measured data (and other software packages) of Round Robins II (Elmia Hall) and III (PTB recording studio) and proved to be in good agreement with measured data. The ratio of the mean error by the JND of each parameter are compatible with the results presented by the other round robin participants. The product of this research is also scalable to an hybrid algorithm and alternatives to do so are provided through the discussion in the paper.
      Citation: Building Acoustics
      PubDate: 2020-10-21T05:02:41Z
      DOI: 10.1177/1351010X20964758
  • Acoustics of the Blue Whale Auditorium in Buenos Aires
    • Authors: Gustavo Basso
      Abstract: Building Acoustics, Ahead of Print.
      The “Blue Whale” Auditorium in Buenos Aires opened in 2015. Designed to be the headquarters of the National Symphony Orchestra of Argentina, its goal was to become the city’s main space for symphonic music. The architectural program posed several challenges from an acoustic point of view, as 2000 people had to be accommodated in a square space into which none of the usual architectural typologies fit properly. It was decided, therefore, to place in this space an “ad-hoc” hall. The design centered around three main premises: to achieve an enveloping acoustic field, to establish an adequate reverberation decay, and to combine reflective and diffusing surfaces to attain a similar acoustic field through the entire audience area. This work details the design process of the Auditorium, during which the final shape was deduced from the established acoustic premises, and some acoustical measurements made in the finished hall.
      Citation: Building Acoustics
      PubDate: 2020-09-28T12:42:49Z
      DOI: 10.1177/1351010X20959261
  • The acoustic characteristics of the “Dives in Misericordia”
           Church in Rome
    • Authors: Giuseppe Ciaburro, Gino Iannace, Amelia Trematerra, Ilaria Lombardi, Maurizio Abeti
      Abstract: Building Acoustics, Ahead of Print.
      This paper discusses the acoustic characteristics of the “Dives in Misericordia” Church in Rome. The church was designed by architect Richard Meier and opened in 2003. It was made entirely of white concrete and consists of three septa with a double curve shaped like a sail. The nave roof is glass. The volume is approximately 14.000 cubic meters. The highest measuring is approximately 26 m. the width of the nave is 19.5 m, while the maximum width is 29.5 m, while the internal length is 32.0 m, while the total length is 45.6 m. It can seat approximately 240 people. The acoustic measurements were taken by placing a microphone at different points of the nave (the area occupied by the audience), with the sound source being placed on the altar. It was therefore possible to obtain a spatial distribution of the average acoustic characteristics inside the church. At a frequency of 1000 Hz, the average values of the reverberation time is about 10 s. In its current configuration, the church is neither suitable for understanding speech nor listening to music. A 3D virtual model was created and with the help of the building acoustics software it was possible to study the sound field inside the church. The possibility to carry out an appropriate acoustic correction was analyzed, in order to reduce the values of the reverberation time, by pacing on a side wall of the church an adequate number of sound-absorbing polyester panels.
      Citation: Building Acoustics
      PubDate: 2020-08-08T09:03:45Z
      DOI: 10.1177/1351010X20948653
  • Numerical study of acoustic transmission across heavily damped plate using
           hybrid Ray-Tracing-SEA method
    • Authors: Feng Yan, Robin Wilson, Peter Rutherford
      Abstract: Building Acoustics, Ahead of Print.
      Energy transmission across lightly damped structures has been well studied including the approved success of statistical energy analysis in mid and high frequency bands. For heavily damped elements, the diffuse field theory, which is used in computing coupling loss factors, tends to fail. Energy attenuation with distance becomes more significant for such elements and hence the energy is less likely to be evenly distributed within those elements. A ray tracing algorithm is developed taking account of this phenomenon by tracking the travel history of a great number of discrete rays. The predicted transmitted energy is used in a modified statistical energy analysis model to calculate energy level difference between different subsystems. Numerical validation and comparison on a concrete five-plate system are conducted in both lightly damped and heavily damped cases. Both the classic and the hybrid models show good agreement for lightly damped system and differ for heavily damped system. The difference tends to become larger with increasing frequency and internal damping level. The parameter “effective length ratio” is proposed to describe the phenomena of energy concentration along the edge and as in indicator of whether the application of diffuse field theory is appropriate.
      Citation: Building Acoustics
      PubDate: 2020-07-15T09:53:47Z
      DOI: 10.1177/1351010X20939553
  • Modelling sound absorption properties for recycled polyethylene
           terephthalate-based material using Gaussian regression
    • Authors: Gino Iannace, Giuseppe Ciaburro
      Abstract: Building Acoustics, Ahead of Print.
      Plastic is widely used all over the world and its production has been increasing continuously in recent years. But plastic presents significant problems about its end-of-life given its important environmental impact. These problems impose recycling policies which provide for the collection and recycling of plastic materials. In this work, the acoustic properties of a recycled polyethylene terephthalate-based material were analyzed. The material showed good sound-absorbing characteristics, especially at high frequencies. In addition, a numerical model based on the Gaussian regression was developed to simulate the sound absorption coefficient of the material. The model returned an R-Squared value of 0.97 demonstrating excellent performance.
      Citation: Building Acoustics
      PubDate: 2020-06-15T11:31:30Z
      DOI: 10.1177/1351010X20933132
  • Sound reduction index prediction of double-layer gypsum panels through the
           transfer matrix method
    • Authors: Nicola Granzotto, Chiara Scrosati, Fabio Scamoni, Edoardo A Piana
      First page: 3
      Abstract: Building Acoustics, Ahead of Print.
      Gypsum board walls are widely used in today’s buildings. A possible way to considerably increase the sound insulation performances of such lightweight walls is to apply double-layer gypsum panels screwed together. Being the boards separated by a thin air gap, there is no shift of the critical frequency from the single-layer case. Moreover, it is possible to obtain an improvement of the sound insulation performances provided by the additional mass given by the double layer. The thin air layer is, however, responsible for a loss of acoustic performance due to the cavity resonance effect in the frequency range between 800 and 1600 Hz. In this article, the increase in the acoustic insulation achieved through the use of coupled gypsum boards is studied and a modelling technique based on the transfer matrix method is used to simulate the acoustic behaviour of the resulting structure; in particular, the thin air layer between the coupled boards is modelled. The simulations are compared with laboratory measurements carried out according to the international standard series ISO 10140. The transfer matrix approach is found to be suitable to describe the problem, provided that a modified model for the air gap between the boards is applied.
      Citation: Building Acoustics
      PubDate: 2020-05-27T09:13:36Z
      DOI: 10.1177/1351010X20921038
  • Low-frequency impact sound of timber floors: A finite element–based
           study of conceptual designs
    • Authors: Jörgen Olsson, Andreas Linderholt
      First page: 17
      Abstract: Building Acoustics, Ahead of Print.
      Traditionally, product development concerning acoustics in the building industry is measurement oriented. For lightweight floors, frequencies that are lower than the frequency range for heavy concrete floors are an issue. The frequency range of from 50 Hz down to 20 Hz influences the human perception of impact sound in multi-story apartment buildings with lightweight floor constructions, such as timber floors, for example. It is well known that a lower frequency range of interest makes finite element simulations more feasible. Strategies for reducing impact sound tend to be less straightforward for timber floors because they have a larger variation of designs when compared to concrete floors. This implies that reliable finite element simulations of impact sound can save time and money for the building industry. This study researches the impact sound transmission of lightweight timber floors. Frequency response functions, from forces on excitation points to sound pressure in the receiving cavity below, are calculated. By using fluid elements connected to reflection-free boundary elements under the floors in the models, the transmission and insulation can be studied without involving reverberation. A floor model with a hard screed surface will have a larger impact force than a softer floor, although this issue seems less pronounced at the lowest frequencies. To characterize floor surfaces, the point mobilities of the impact points are also calculated and presented. The vibration and sound transmission levels are dependent on the selection of the excitation points.
      Citation: Building Acoustics
      PubDate: 2020-06-01T11:09:40Z
      DOI: 10.1177/1351010X20917874
  • Monitoring time-varying noise levels and perceived noisiness in hospital
    • Authors: Chiung Yao Chen
      First page: 35
      Abstract: Building Acoustics, Ahead of Print.
      The aim of this study was to verify what statistical attributes are effective descriptors of time-varying noise levels due to road traffic and complex medical routine activities in hospital lobbies. In a psychoacoustic experiment, respondents provided perceived noisiness ratings affected by 12 noise events in hospital lobbies according to the processes recommended by ISO 15666. According to the correlations between subjective and objective survey results, the average LAeq ,15 m induced during the daytime itself was confirmed to be poorly related to subjective noisiness. The three independent variables shown to have the largest effects on perceived noisiness were (1) L min − L max, (2) the effective duration of the normalized autocorrelation function (τe, h) of all LAeq,15 m from 9:00 a.m. to 5:00 p.m., and (3) the gradient of the cumulative distribution function (0.3–0.7 cumulative rate range). These statistical attributes have been confirmed as useful tools for detecting perceptions of complicated noise sources, but the associated correlations cannot be recovered from the relevant previous studies. Finally, construction noise was confirmed by factor analysis to be the accidental noise source with the highest factor loading (0.779) but a lower variance (
      Citation: Building Acoustics
      PubDate: 2020-06-12T09:34:53Z
      DOI: 10.1177/1351010X20919868
  • A research on acoustical comfort for hearing-impaired individuals in
           inclusive education places
    • Authors: Zakariyya Uzeyirli, Aslı Özçevik Bilen
      First page: 57
      Abstract: Building Acoustics, Ahead of Print.
      The inclusive education method has substantial contributions to hearing-impaired individuals’ education and socialization. However, the poor physical environment and acoustic comfort conditions negatively affect speech intelligibility at such places and therefore, the quality of education. Upon determining that there are very few subjective evaluation studies, we conducted a study regarding the impact of acoustic comfort conditions on speech intelligibility at inclusive education places. Within the scope of the study, first, a classroom was determined, and the current acoustic conditions of the class were evaluated objectively by field acoustic measurements. A calibrated model was created in the simulation software of the relevant class and then two more models with optimum reverberation time values of 0.4 s and 0.8 s as suggested in the literature, and auralizations were performed for the models. For subjective evaluation, a subject group of hearing-impaired and normal hearing individuals fulfilling equal conditions were tested by speech discrimination test in real-time in the classroom and from auralization recordings in a laboratory setting. Regarding the results obtained, it was observed that speech intelligibility percentage of normal hearing individuals increased as expected while in hearing-impaired individuals, contrary to the expectations, percentage differed from one another, and there was no increase. Following the discussions with experts, it was concluded that different hearing aids used by hearing-impaired individuals might lead to this situation. Accordingly, it occurs that the possibility to achieve a good speech intelligibility for hearing-impaired individuals even if optimum acoustic values suggested are fulfilled in education places remains unclear.
      Citation: Building Acoustics
      PubDate: 2020-07-02T10:51:40Z
      DOI: 10.1177/1351010X20923581
  • Acoustical unmanned aerial vehicle detection in indoor scenarios using
           logistic regression model
    • Authors: Gino Iannace, Giuseppe Ciaburro, Amelia Trematerra
      First page: 77
      Abstract: Building Acoustics, Ahead of Print.
      In this study, the data obtained from the acoustic measurements were used to train a model based on logistic regression in order to detect a quadrotor’s vehicle in indoor environment. To simulate a real environment, we made sound recordings in a shopping center. The sounds related to two scenarios were recorded: only anthropic noise and anthropic noise with background music. Later, we reproduced these sounds in an indoor environment of the same size and characteristics as the shopping center. During the simulation test, a drone placed at different distances from the sound level meter was turned on at different speeds to identify their presence in complex acoustic scenarios. Subsequently, these measurements were used to implement a model based on logistic regression for the automatic detection of the unmanned aerial vehicle. Logistic regression is widely used in pattern recognition of the binary dependent variable. This model returns high value of accuracy (0.994), indicating a high number of correct detections. The results obtained in this study suggest the use of this tool for unmanned aerial vehicle detection applications.
      Citation: Building Acoustics
      PubDate: 2020-05-13T10:49:05Z
      DOI: 10.1177/1351010X20917856
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