Analog Devices International IPD Pilot Line/Manufacturing Extension

  • Value(€ million): Confidential
  • Completion date: Under Construction
  • PUNCH services: Civil, Structural, Traffic

This project consists of the construction of a new 2,000m2 cleanroom development on the existing site occupied by Analog Devices in the Raheen Business Park.

Phase 1 of the development involved the demolition of an existing office block on the site and diversion of the site services through an enabling works contract.

Phase 2 consists of the main infrastructural development including:

  • The construction of a two storey over basement extension to the existing manufacturing building, with ground floor cleanroom, and basement and mezzanine level plant areas
  • The construction of a two storey over basement extension to the existing plant room with basement service tunnel connecting to the existing cleanroom basement
  • The construction of a scrubber deck extension and associated generator room, with 3 new scrubbers, 3 new flues and associated alterations to the existing flue heights
  • The construction of a single storey extension to the existing MV Sub Station
  • Re-organisation of the site layout and car parking, with associated works including a perimeter fence and landscaping along the Ballycummin Avenue boundary.

The 7m deep basement and tunnel structures are constructed using an open excavation and cut and cover construction for the tunnels. The reinforced concrete structures are designed to achieve a grade two basement for the client suitable for use as a mechanical plant room.
The main cleanroom structure consists of a structural steel frame with a 46 metre clear span hybrid Pratt and Vierendeel truss structure which accommodates a mezzanine plant area and also provides the structure for the roof and a rooftop plant support structure. Lateral stability is provided by roof bracing and two reinforced concrete stair cores at opposite corners of the structure.
The plant room extension comprises of a 2000m2 structure consisting of a reinforced concrete frame supported on pad foundations with masonry infill. The scrubber platform extension is constructed from a structural steel frame, a reinforced concrete floor slab and structural steel frames to support the scrubber towers and M&E services.
The development interfaces with the existing structures and tunnels in a number of areas which required careful consideration of the operational requirements of the existing facility at the design development stage. The requirements of FM Global design standards also required comprehensive consideration during the design process.
The building and civil infrastructure for the project was modelled using Autodesk REVIT which allowed full integration with the mechanical and electrical services model at the design stage. This facilitated better coordination and integration of the various disciplines pre-construction.

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