GATHERING THE INFORMATION There are many items on a construction project that require shop drawings, including structural steel, precast concrete, miscellaneous metal, mechanical and electrical systems, and finish items such as doors and windows.
Point of View Reinforcement Placing Drawings are not Shop Drawings requirements for early submittal can be detrimental by Dick birley “Contractor will be required to have engineering such as submittals, shop drawings, and samples submitted for approval within one hundred (100) calendar days from written engineering notice to proceed.” S tatements similar to this quote from the specifications for a new stadium proposed several years ago appear in many project specifications. In today’s environment other construction trades. In fact, the constraints placed on the production of bar placing drawings may make it impossible to comply with such a contract of ever-shortening design and construction schedules, demand in a manner that’s productive for the detailer it’s understandable that specification writers feel it’s or the contractor. necessary to impose tight time constraints on the delivery of shop drawings. GatheRinG the infoRmation Although reinforcing bar placing drawings are often There are many items on a construction project that assigned to the “shop drawings” category, it’s important require shop drawings, including structural steel, precast to note that bar placing drawings are quite different from concrete, miscellaneous metal, mechanical and electrical the fabrication and installation drawings required for systems, and finish items such as doors and windows. There is, however, a fundamental difference between This point of view article is presented for reader interest by the editors. shop drawings for most items and reinforcing bar placing However, the opinions expressed are not necessarily those of the American Concrete Institute. Reader comment is invited. drawings. Except for relatively minor embedded pieces in concrete, most items detailed in shop drawings are 48 December 2008 / Concrete international installed as self-contained systems or the other trades have completed as attachments to in-place s
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