Structural Steelwork Isolation
Within large constructions there can be multiple sources of noise and vibration which must be addressed on an individual basis. There are various isolation techniques that are required to ascertain the source of the problem.
Equipment generating dynamic forces must also be considered very carefully. For mixed use developments, floors should also be treated for impact noise as this will be transmitted in all directions through the entire structure of the building.
At Inspired Noise UK we understand that there are many factors to consider when attenuating noise and vibration within a structure and will advise on the most suitable solution.
Vibrafoam Vibration Isolation Material
Vibrafoam provides effective protection against vibration and shock. This High-tech polyurethane elastomer can be used as two-dimensional matting for decoupling components, as a blank according to the respective component geometry or as custom-made molding. We offer a wide range of 13 standard materials and also offer the possibility to produce special types in various colours and thicknesses to suit your requirements.
City centre construction sites are often complicated by having surface rail or underground railway tunnels close to proposed foundations and piles. New office complexes are frequently built directly over existing railway stations where heavy diesel, as well as underground trains pass or terminate. These essential services generate ground bourne vibration which enters buildings of conventional construction and can make the life of occupants intolerable.
The solution for new construction may be to design the building with elastomeric anti-vibration bearings incorporated into the foundations. This has been an accepted building practice since 1963 and many buildings have been isolated on elastomeric bearings of various types.
We offer both laminated natural rubber/steel plate bearings and fabric reinforced bearings. The former been designed to BS5400 and the latter to BS6177. These products have been developed and designed with technology and experience gained during 30 years of production.
The bearings are suitable for use in any buildings where there is a requirement for the structure to be isolated from a source of vibration.
General guidance relating tothe selection and use of elastomeric bearings for isolating buildings from vibration is published in BS6177:1982. It is recommended however, that the Inspired Noise Solutions are consulted for a bearing system proposal since applying the wrong bearing design can compound a vibration problem.
Elastomeric Bearings are made to a strict specification and quality control, thereby ensuring a maintenance free working life, generally comparable with the design life of the structure.
Please note that in some cases, side restraint will be required to ensure the stability of the structure. This can usually be provided by steel dowels which should always have a rubber dowel sleeve or some form of side restraint bearings incorporating sliding (PTFE) faces to account for vertical compression of the main bearings.
Fail safe devices are usually fabricated steel boxes or strip designs but concrete upstands can also be used. For in situ concrete structures a filler e.g Clayboard, polystyrene or other suitable filler material can be used to infill between bearings prior to casting. Alternatively a galvanised steel base plate with starter bars can be used as a permanent shutter on top of the groups of bearings.
TG Bolt Isolation Grommet
Technical Data Sheet