as-built drawing


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as-built drawing

Not infrequently, the owner or contractor of a building under construction will make field modifications to the original architectural or engineering drawings. Ideally, all such modifications should be noted on one set of plans set aside for that purpose.At the completion of the project, the respective professionals will be asked to generate a new set of drawings showing the actual construction details, rather than original designs, so that future work can be planned and executed in a knowledgeable manner with reference to what already exists in the property. In the alternative, long after a building has been constructed, the owner may employ professionals to prepare plans showing all details of the building and its various systems. Both of these result in as-built drawings.

References in periodicals archive ?
The first way is to use the Geophysical surveying technologies; this procedure will take place if the reliability of the data is very poor due to the non standardization of the generated as-built drawings, or due to the non network completeness and oldness.
To retrieve as-built drawings, employees had to search for the job number by looking at old paper maps or card catalogs.
One of the reasons I started this business is that every project I've known has been delayed or affected in some way by a lack of accurate as-built drawings. This causes delays, unpredictable costs, and contract variations.
A survey of the installation site is essential to verify the accuracy of as-built drawings to reduce the risk of unforeseen conditions and costly change orders that affect project cost and schedule.
A greater degree of accuracy and quality control was achieved by scanning the existing facility rather than relying on limited as-built drawings of questionable accuracy.
From planning to as-built drawings, all directional data is documented and recorded using the DataTraX (DTX).
Information from site visits, DOE-2 manuals, as-built drawings, and measured energy and operation data were used to create a DOE-2 input file for the calibrated as-built simulation.
The new technology offers significant possibilities for the real estate market as well as structural engineers, architects, facade restoration firms and others who produce as-built drawings.
Another recommendation: Ensure that the installing contractor turns over as-built drawings at the end of any project.
To obtain final approval on a construction project, contractors are required to submit their as-built drawings in one of several computer-aided design (CAD) formats, exactly in compliance with the CCWA As-Built CAD standards.
"After all," he reasoned, "the township is requiring that the contractor provide as-built drawings, so they'll have to do it right." When we delivered all of the permits and plans required to bid and build the project, he paid his bill and left--and we heard nothing from him or about the project for almost a year.
Accurate as-built drawings can substantially reduce the cost of retrofit construction.