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Öğe A case study for implementation of the classification scheme introduced in the new sound insulation regulation in Turkey(Institute of Noise Control Engineering, 2017) Şentop, A.; Tamer Bayazit, N.; Kurra, S.; Demir, D.The "Regulation on Protection of Buildings against Noise" issued by the Turkish Ministry of Environment and Urbanization, in May 2017, aims to organize the requirements and enforcements for noise control in buildings. The regulation introduces a classification scheme to rate acoustic performances of buildings based on the EU/COST TU 0901 project and ISO-CD19488, and the verification tests in order to obtain "Acoustic Performance Certificate" which is a legal document authenticating the acoustical quality of the building. As an application of the regulation, a residential building was selected for the case study and the airborne sound insulation of partitions and façades, impact sound insulation of floors, reverberation times of common areas and indoor background noise levels were measured to evaluate the acoustic performance of the building and to determine its acoustic class. Based on the results, the applicability of the limit values given in the regulation could be checked. In the study, a pilot social survey was conducted to investigate the responses of the residents against variety of indoor and outdoor noises. The preliminary results have supported that Class C, which is also a requirement for new buildings in the regulation, was satisfactory for most of the residents in the building. © 2017 Institute of Noise Control Engineering. All rights reserved.Öğe Acoustic performance assessment of residential buildings – A measurement and survey study(International Institute of Acoustics and Vibration, IIAV, 2018) Şentop, A.; Bayazıt, N.T.; Kurra, S.The "Noise Protection and Sound Insulation in Buildings" regulation issued by the Turkish Ministry of Environment and Urbanization, aims to organize the requirements and enforcements for noise control in buildings. This regulation introduces a performance classification scheme for residential buildings that ranges from A to F similar to that is proposed in the draft standard ISO-CD19488. Acoustical performance class is assigned based on six acoustical performance parameters: airborne and impact sound insulation, façade sound insulation, indoor background noise levels, mechanical noise levels and reverberation time. Aiming to confirm the applicability of the limit values and the classification system, a case study was performed by selecting three sample buildings. Airborne and impact sound insulation of building elements, reverberation time and indoor noise levels were measured starting from 100 Hz and 50 Hz and the results were compared with the regulatory requirements. Simultaneously, a survey was also conducted applying a questionnaire specifically prepared to evaluate the residents’ opinions in terms of satisfaction/dissatisfaction about acoustic performance of their dwellings. The relationships between the occupants’ assessments and the regulatory requirements are discussed in this paper. © 25th International Congress on Sound and Vibration 2018, ICSV 2018: Hiroshima Calling. All rights reserved.Öğe Acoustical classification and proposed methodology for performance assessment of buildings in Turkey(International Institute of Acoustics and Vibrations, 2016) Bayazit, N.T.; Özbilen, B.S.; Kurra, S.; Şentop, A.The "Noise Protection and Sound Insulation in Buildings "regulation prepared by Istanbul Technical University for the Turkish Ministry of Environment and Urbanization, aims to organize the requirements and enforcements for noise control in all kinds of buildings. The EU/COST TU 0901 Harmonization Project (completed in 2013) proposes the units to be used in the evaluation of the acoustic performance of buildings and the acoustic classification scheme with quality classes A-F; but the project scope is limited to residential buildings. In the proposed regulation, the scope was extended to all kinds of buildings and the limit values were determined according to a proposed model. The selection of the sound insulation-limit valuesis based on the relationships of rooms, their noise sensitivity, and noisiness characteristics. Indoor background noise limits, mechanical noise limits and reverberation limits are also determined according to room function analysis. This paper explains the above aspects of the new regulation and describes the performance rating approach for the new and existing buildings.Öğe New regulation on noise protection for buildings and sound insulation in Turkey(International Institute of Acoustics and Vibrations, 2016) Bayazit, N.T.; Özbilen, B.S.; Kurra, S.; Şentop, A.The new regulation titled "Noise Protection and Sound Insulation in Buildings" prepared by Istanbul Technical University for the Turkish Ministry of Environment and Urbanization, aims to organize the requirements and enforcements for noise control in all kinds of buildings. Throughout the preparation process of this regulation, the relevant standards, legislation and guidelines of different countries were reviewed. The new regulation covers three major aspects: a. Acoustical design of buildings, b. Evaluation of the acoustic performance of buildings, c. Inspections upon complaints about the existing buildings. Along with the draft regulation, the "Guideline on Acoustical Design, Implementation and Inspection of Buildings" which describes the acoustical principles for the design stage, assessment procedures and standard tests to be performed for the buildings requesting acoustic performance certificate, checklists and the format of evaluation reports were prepared. A prediction method to satisfy efficient sound insulation for simple buildings was proposed with the practical solutions. The five (5) factors are accepted in the evaluation of building acoustics, in terms of indoor noise levels, airborne and impact noise insulation values, according to the proposed classification system, mechanical system noise levels and reverberation times related to noise reduction. The new descriptors proposed in the COST TU 0901 Project regarding noise and sound insulation were described with the proposed conversion factors applicable to the earlier rating units. Training programs were arranged for facilitating the application of the new regulation. This paper explains the scope and the structure of the new regulation and, introduces the insulation assessment model proposed in the guideline.Öğe Proposed methodology for new regulation and guidelines on noise protection for buildings and sound insulation in Turkey(German Acoustical Society (DEGA), 2016) Tamer Bayazit, N.; Kurra, S.; Şan Özbilen, B.; Şentop, A.The draft regulation prepared for the Turkish Ministry of Environment and Urbanization, aims to organize the requirements and enforcement for noise control in buildings. A model describing an ideal framework of a building acoustics regulation was introduced and implemented during preparation of legislative and technical documents. The new regulation covers acoustical design, evaluation of acoustic performance during construction, supervising and certification of acoustic quality, investigating and elaboration of complaints from existing buildings. New rating descriptors and the basic classification scheme for the residential buildings were adopted from COST TU 0901 project, however the acoustic performance of buildings in terms of indoor limits, reverberation times, mechanical noise limits and required insulation values, were evaluated for all types of buildings and indoor spaces according to the criteria assessment model developed in the study. Special concerns were given into consultancy, training and building supervising. A technical document prepared to complement the regulation, describes the implementation process of the regulation and highlights good design practice considering the state-of-art in building sector in Turkey. A "decision- model" for low-rise houses is proposed based on the present data for the building elements. This paper summarizes overall results of the study conducted in Istanbul Technical University. © 2016, German Acoustical Society (DEGA). All rights reserved.
