As-built drawings


Also found in: Acronyms.

As-built drawings

Plans that incorporate the changes made during construction to record accurately the actual construction of the structure, as opposed to the initial construction documents.
References in periodicals archive ?
Engineers investigating the site discovered that some of the column-to-column wind braces had been relocated a few bays off from what was shown in the as-built drawings. Because these variances were discovered early in the process, they were able to reroute the ductwork and incorporate the changes into 3D construction drawings.
As-built drawings exist but are limited to 2D format.
Therefore, in order to synchronize the networks changes and keep the digital Geodatabase always updated and current, the need to implement a procedure to standardize the as-built drawing submittal from local contractors, and to make them in a format compatible with the enterprise GIS Geodatabase.
A detailed as-built simulation and calibration were performed for a case-study building that has energy conservation design measures (ECDMs), based on as-built drawings and measured data, including: weather data packed to TRY format, light & receptacle day-typing, Custom Weighting Factors (CWF) with U-effective calculation to account for thermal mass, low-e windows using the Window 5.2 library, and measured HVAC systems performance for chillers and AHUs.
With this technology complete as-built drawings can be re-created cost effectively.
PVC main depicted on an as-built drawing really is a 16-in.
The services offered by Mcintosh Redpath Engineering using the Cyrax system include site and engineering surveys; as-built drawings and models of plant and infrastructure facilities; excavation quantity surveys - profiles, volumes and area calculations; fabrication and construction inspection; construction progress inspection; conceptual design and interference checking and asset management - virtual reality 3D fly through of existing plant facilities.
Using the new system, the technician can quickly develop three dimensional as-built drawings from scratch while in the field.
In the final rule, PHMSA says that "Written procedures supported by as-built drawings and other construction records ordinarily will satisfy" its requirement that operators maintain records demonstrating compliance.
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. Using HDS, a freestanding office building can be scanned, and the image will capture every feature of the facade as well as the adjacent landscape and street areas.
The data sources for the maps are grayscale and color orthophotos, as-built drawings, tax map images, and numerous GIS data layers (roads, streams, water and sewer utilities, hydrants, valves, wells, building outlines, contours, shoreline, vegetation, soils, zoning, and political districts).
As-built drawings and specifications are essential for verification during the audit.