Peter W. Rodino Federal Office Building: Getting from –GN to CO-

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The end of desiGN to the beginning of COnstruction of course.

The transition between design and construction on the Peter W. Rodino Federal Office Building has been gradual. The Design-Build-Bridging delivery method makes for an interesting discussion of where design ends and construction begins. The Bridging Design team, Dattner Architects, hands off the original concept and detailing to a Design-Build team, Tocci/Driscoll working with KlingStubbins, to finalize the documents and execute construction.

The handoffs are most evident on the curtainwall overclad system. Dattner Architects conceptualized and defined the design intent: The overclad serves a role in the overall building energy retrofit, allowing for insulation in the colder months and ventilation in warmer months. Dattner also polished the final appearance with transitional spaces, material interfaces, and quality.

After Tocci/Driscoll received the project award, KlingStubbins took over overclad design and detailing. Tocci/Driscoll, KlingStubbins, the installer (National Glass), and fabricator (McMullen), further developed the system for the stamped construction drawings, keeping within the constraints of fabrication methods and tolerances without changing the intent. The team defined:

  • Glazing details, based on actual glass that will make up the curtainwall
  • Interface between rooftop panels and existing structure
  • Window washing units, based on the rooftop track system and outside vendor
  • Connection details, based on fabrication tolerances and the actual mechanical fastening system
  • Panelization, based on fabrication and installation sequence.

The model produced by KlingStubbins does not include all fabrication details, just the necessary spaces, placeholders and tolerances required for fabrication. After completion of the Construction Documentation, the Revit model was turned over to McMullen, who added the actual fabrication detail.

Due to the nature of the project, the renovation of an existing building, as well as the project delivery method, Design-Build-Bridging, a constant flow of information, and collaborative design was needed to push this project forward.  While the appearance of a system like the overclad was developed and decided upon early in the process, the development of the necessary details, and design and coordination of a complex element into existing infrastructure will carry far into the overall construction of the project.

 



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Responses

  1. Thank you for take the time to produce this article. I am site services rep for Casella promoting roll offs, portable toilets etc to Tocci and other firms similar to Tocci. Your article confirms that there is no exact science as to when a project goes from design to construction. The hand off from design to construction is an evolution and folks like me need to start contacting cliengts early in the process.
    Keep making New England green & beautiful.

    Best regards,

    Eric

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