Stravibase VHS

Very High Stress Bearing

Stravibase VHS* very high stress bearings isolate buildings from vibration and structure-borne noise caused by trains or trams running nearby or underneath buildings. They are designed to support very large loads whilst being significantly smaller in plan dimensions than traditional elastomer bearings.

Main Benefits

 

  • VHS bearings provide the same acoustic performance as standard elastomer bearings which are more than twice their size; thereby having a significant impact on a buildings structural cost.

  • They are quick and easy to install, thereby minimizing associated labor costs. Top and bottom plates can be added to suit the specific method of installation.

  • Our engineers will design a configuration of VHS to best suit the structural element requiring support.

  • If required VHS bearings can be designed to be replaced one at a time using our “frozen bearing technique”

 

Design Requirements

 

  • Natural frequency required
  • Permanent and variable loads
  • Lateral and turning forces

 

*Previously known as CDM-VHS

Frozen Bearing Technology

Frozen Bearing Technology (FBT) technique allows us to replace elastomer bearings such as Stravibase VHS without disturbing the building’s structure; which may become necessary if there is a significant change in the imposed load.

  • Information Available to Download

Case Studies

  • Clarges Mayfair

    7 Clarges Street

    Stravibase VHS pre-compressed elastomer bearings at 7 Clarges Street limit differential movement between the two halves of the building during construction.

  • Manchester Metropolitan University (exterior)

    MMU

    The new Media facility at Manchester Metropolitan University features a Stravifloor Channel acoustic floating floor to avoid structural vibration amplification.

  • Rotterdam Ahoy Convention Centre (exterior)

    Rotterdam Ahoy

    The floor of the RTM Stage at Rotterdam Ahoy Convention Centre is installed on Stravibase SEB elastomeric bearings. Stravilink WallFix isolators decouple walls.

  • CB1 Ibis Hotel (exterior)

    CB1 Ibis Hotel

    Stravibase VHS bearings, capable of supporting very high loads on a small bearing footprint, are used to support the main columns of the new CB1 Ibis Hotel.

  • Doornroosje (exterior)

    Doornroosje

    To increase user comfort with respect to vibrations generated by nearby traffic, the Doornroosje music center was placed on top of Stravibase VHS bearings.

  • 9 Marylebone Lane (exterior)

    9 Marylebone Lane

    9 Marylebone Lane is being supported by Stravibase VHS elastomeric bearings to cope with the structure-borne noise coming from the nearby Jubilee Subway Line.

  • Luka Living Rental Apartments (exterior)

    Luka Living Rental Apartments

    To shield the 19-storey Luka Living apartment building from structure-borne noise coming from the Prague metro lines, Stravibase VHS bearings were installed.

  • Premier Inn Howard Street (interior)

    Premier Inn Howard Street

    At Premier Inn Howard Street Stravibase SpringBox bearings are used near the railway with a precompression that matched the deflection of the elastomer bearings

  • Villa Eclair (architectural rendering)

    Villa Eclair

    To ensure that no vibrations from the nearby railway tracks can reach Villa Éclair, a combination of Stravibase Spring and Stravibase SEB bearings is used.

  • K1 Knightsbridge (exterior)

    K1 Knightsbridge

    To achieve acceptable structure-borne noise levels within the residential element of K1 Knightsbridge, Stravibase VHS elastomeric bearings were specified.

  • Zahálka - Phase I (exterior)

    Zahálka (Phase I)

    To prevent vibrations from the nearby railroad to cause noise problems in the Zahálka development project in Prague, CDM Stravitec solutions were installed.

  • Riviéra Modřany (exterior)

    Riviéra Modřany

    The Riviéra Modřany apartment buildings are placed on Stravibase VHS elastomeric bearings to isolate them from vibrations coming from the nearby train tracks.

  • Aalto Acoustics Lab (interior)

    Aalto Acoustics Lab

    As part of the 2019 renovation, the anechoic chambers at the Aalto Acoustics Lab were upgraded to the latest industry standards using Stravibase VHS and Spring.