Overview
Spence have recently completed the alterations to a void area with London Bridge to create a concourse retail unit and much needed storage areas for the Stations operational team.
The void previously housed escalators so the conversation some logistical challenges to make the space usable.
Scope
Strip Out and Scaffolding
- Completed the strip out of the area.
- Designed and assured high-level atrium scaffold via the form C process and installed it to facilitate these works.
Structural Alterations
- Required to accommodate the newly installed steel frame.
- Included a steel feature staircase and balustrading to create a balcony area.
- Installed new formed RC slabs to create three usable floors.
- Installed blockwork walls to divide areas and create access corridors for existing station assets, including the UKPN transformer room.
- Spence undertook all temporary works designs.
Steel Doors
- Installed by Assa Abloy in keeping with the London Bridge Security guide.
Feature Glazed Entrance Screens
- Installed feature glazed entrance screens and signage bars to create a positive retail façade matching the station’s design requirements.
Front Listed Elevation
- Cleaned and sympathetically restored the front listed elevation.
Terrazzo Floor Finishes
- Installed floor finishes within the back of house areas.
Fire Alarm and PAVA System
- Extended and modified the existing station fire alarm and PAVA system to suit the new layout.
- Installed tenant’s interfaces.
Sprinkler Main
- Brought a new sprinkler main into the unit for future tenants’ use.
MCW Feed and Drainage
- Brought a new MCW feed into the unit and installed drainage for the incoming tenant.
- Created mechanical extract louvres and paths for future tenants’ requirements.
Challenges & Solutions
Assisting in completing the design of the works, imparting our specialist expertise to help guide the design in a direction that would suit the client, and be fully up to spec. Obtaining engineering assurance from Network Rail, to ensure that all works are above board, up to their specifications and ready to take place.
Landlocked environment makes working on a live site incredibly difficult as it’s hard to get deliveries of supplies or effectively remove waste materials in an efficient manner. Also pumping concrete proved exceptionally difficult due to the nature of the location. The solutions in this case, were to get deliveries off at peak times, to reduce the footfall from the public around the site, and the implementation of a custom concrete delivery system, temporary walkways and an abundance of banksmen and marshalls at all times to reduce complications.
Finally, water ingress (leaks from the above track bed) caused continuous setbacks as the source spots of the leaks needed to be identified and treated. This was achieved by installing lead flashings, various drip/catch trays, replacing existing rainwater pipes & applying waterproof resin to ensure no future leaks.
