Long-term Protection from Structure-borne Noise in Downtown Grenoble
Permanent protection from vibration emissions caused by the streetcar line
To protect the urban environment from vibrations caused by passing streetcars, mass-spring systems are used in downtown Grenoble. Some sections have been decoupled using Sylomer® solutions from Getzner for more than 30 years, without any need for maintenance. Getzner investigated the long-term performance of the system on a section in Avenue de Valmy, which went into operation in 2004.
The challenge
- Permanent protection from vibration emissions caused by the streetcar line
- Streetcar network of 47 km and 81 stations
- High long-term performance of the mass-spring system
- Achievable insulation performance of at least 20 dB at 63 Hz
- Demanding conditions of the climate in Grenoble and intensive use of the network
The Getzner solution
To protect surrounding buildings from vibrations, a Sylomer® LG28 mass-spring system from Getzner was installed. After 15 years’ operation, the long-term performance of the Getzner solution in the Avenue de Valmy was measured using a range of tests.
Advantages for customers
- Perfect, individual solution for structure-borne noise insulation
- Unchanged high performance after 15 years of operation
- Reliable, long-lasting, and maintenance-free elasticity
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