Vibration isolation in buildings shows long-term effects

Go to the Protection of the cinemas Elastic point bearings were removed in 2005 in the famous Grandberry Mall in Tokyo from disturbing noises and vibrations synodyne from getzner Installed. According to long-term measurements, it works Vibration Isolation Almost unchanged 15 years later. And so after the temporary closure of the area, Getzner received the order to also renovate the site Buildings to equip it again with its vibration protection.

The Grandberry Mall was opened in 2000 as one of the top 3 outlet centers in Tokyo. In addition to more than 60 shops, restaurants and an extensive outdoor area, there have also been 2006 cinemas here since 109. The operator was looking for an effective one Vibration dampening and Noise reductionto shield visitors from external sources of noise.

Nihon Getzner, Japanese subsidiary of Getzner Werkstoffe, supplied an individual solution for source isolation from vibrations with low frequencies based on the self-developed polyurethane Sylodyn.

The operator had around 60 customized point bearings of the material manufactured in Austria installed. The biased Polyurethane storage decoupled the steel substructure of the rows of seats. Because this vibration isolation has been in use successfully for over 15 years, Getzner was awarded the contract to equip the vibration isolation elements for the renovated building.

Long-term properties of vibration isolation

The Grandberry Mall closed in 2018 due to a large-scale renovation of the area. Getzner dismantled the built-in ones Sylody Pads and tested their long-term properties. “We have analyzed two of the dismantled point stores in detail in the past few months. The Sylodyne specifications were compared to those of the past and examined how the material of the system has changed over the years, ”explains Hideki Uryu, General Manager of Nihon Getzner. The overall condition of the two samples with only slight signs of wear in terms of color, dimensions and shape could be rated as good.

The material tests did not reveal any significant deviations from the 2005 data sheets. Hideki Uryu explains: “We checked the specific weight, the Shore hardness, the static and dynamic rigidity. The results have been excellent. With a degree of vibration isolation of 96 percent or an improvement of 29 decibels, the material perfectly fulfills the requirements for decoupling. "

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No significant change for 15 years

To 15 years In use, the anti-vibration Sylodyn showed no significant change in functionality compared to the day of installation. “Our tests again demonstrate the excellent long-term behavior of Sylodyn. The material is ideal for insulating noise between walls, floors and ceilings, as impact sound insulation in floors and on stairs, and as a warehouse for buildings or machines, ”summarizes Hideki Uryu.

“The tests give operators the assurance that the built-in vibration Isolation works in the long term and contributes to the comfort of guests. This is also a cost saving, ”concludes Hideki Uryu, describing the advantages.