Rothoblaas - Soundproofing Solutions Strana 85
Nabídka komerčních zákazníků **Nejlépe prodávané z RothoBlaas Deutschland
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PRODUCT SELECTION To properly evaluate the product using MyProject, simply follow the step-by-step instructions provided by the software. 1 The product can also be selected using the application tables (see below for the XYLOFON 35 table), which help to choose the correct product. 2 Note: The static behaviour of the material in compression is evaluated, considering that the deformations due to the loads are static. This is because a building does not present significant movement phenomena, nor dynamic deformation. Rothoblaas has chosen to define a load range that allows good acoustic performance and avoids excessive deformation and differential movements in the materials, including the building's final architectural finishes. However, it is possible to use profiles with loads outside the indicated range if the resonance frequency of the system and the deformation of the profile at the ultimate limit state are assessed. DETERMINATION OF PERFORMANCE Once the loads have been identified, it is necessary to figure out what the design frequency is, namely the exciting frequency of the element of which the structure and transmissibility of the product has to be insulated, depending on the design frequency under the chosen load conditions. The MyProject software automatically calculates natural frequency, transmissibility and attenuation, and by downloading the full manual from www.rothoblaas.com, it is possible to see all the graphs relating to product performance. NOTE:The transmissibility graphs do not consider the influence of the fastening systems that may affect the final performance of the resilient profile: the greater the thickness of the acoustic profile, the lower the stiffness of the building. Consequently, it is necessary to increase the number of connectors to compensate for the loss of rigidity/strength. This leads to an increase in vibration "transmission points", which reduces the benefit of resilient profiles. For this reason, it is advised to choose a laboratory-tested product, whose Kij values measured with appropriate fastening systems and whose measuring conditions are declared. Rothoblaas has invested in the development of solutions that follow a multidisciplinary approach and take into account the real conditions of the construction site. Laboratory measurements, static tests, durability tests, moisture control and fire performance studies allow the designer to benefit from real performance data and not just theoretical values that have limited practical applications. F STRUCTURAL NOISE | CORRECT DESIGN OF RESILIENT PROFILES | 87
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