Alexandria Center at Kendall Square will ultimately bring 1.7 million square feet of state-of-the-art office and laboratory space including the new 307,000-square-foot Biogen Idec building to the Boston area. Alexandria Center will encompass five high-tech facilities, including Biogen’s six-story build-to-suit home.
PDC worked directly for fabricator, Cives (Mid-Atlantic), both in the capacity of modeler/detailer and onsite project coordinator. Scope of work included 4,800 tons of BIM modelling and structural steelwork. Due to the collaborative design coordination, actual construction was able to start 9 months sooner than a traditional Design/Bid/Build delivery.
PDC’s onsite “project coordinator” worked alongside our fabricator client’s onsite co-location team on a daily basis every week during the design assist phase of this project.
The model coordination was commenced at 25% DD’s and continued thru 50%, 75% and 90% DD’s.
Daily coordination meetings were held with all trade parties present to finalize design and trade interfaces in a model environment (Navisworks).
Based on the outcome of these coordination meetings, PDC’s onsite “project coordinator” updated the fabricator’s Tekla model on a daily basis and resubmitted to the CM for further coordination.
The bulk of these model revisions were in the form of beam penetrations for MEP trades, however there were also gusset changes due to pipe & duct clashes.
Connections and interfaces for the curtain wall & elevator were also coordinated in these meetings, but not soon enough to maximize the benefits (see negative outcomes below).
Substantial cost savings by being able to incorporate beam penetration in the shop rather than in the field.
Due to the collaborative design coordination and dynamic incorporation, actual construction was able to start 9 months sooner than a traditional Design/Bid/Build delivery.
Impacts of design iterations could be reviewed and evaluated the same day.