Development of As-Built Model for I-80/I-380 Design 420 BIM ST-012

(2022) Development of As-Built Model for I-80/I-380 Design 420 BIM ST-012. Transportation, Department of

ST-012_Tech Brief, STIC Grant –Development of Digital As-Built for Use in Future Asset Management Applications_Technology Transfer Technical Brief.pdf

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ST-012 Technical Report Documentation Page OrcID.docx

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The deliverable of ST-012 is the 3D as-built model. The original model used to build the bridge was provided to the contractor in an i-model format. This format does not allow for editing or attaching information of the type required to convert it to an as-built model. Additionally, the Bentley modeling software used to develop this i-model is no longer compatible with the current versions of the software. Because of these limitations, the original software versions were used to add the as-built information and attachments. After the as-built updates were made, the model was republished to an i-model format. To ensure that the model could be used with future asset management software packages, the team explored non-proprietary open-file formats in which the model could be exported. Doing this eliminates the risk of Bentley’s proprietary i-model format becoming obsolete, rendering the model inaccessible to modern software. A non-proprietary file format called International Foundation Class (IFC) was found to be the most advantageous. Conversion to the IFC file format will allow the model to be read by other 3D modeling software.

Item Type: Departmental Report
Note: Conducted in cooperation with the U.S. Department of Transportation, Federal Highway Administration. Following construction of the bridge, ST-012 was proposed to further advance the BIM model developed for the BIM pilot project by incorporating as-built information and other associated construction data. The objectives were to capture the known construction modifications to the design and to allow the data in the model to be used in the future for asset management applications.
Keywords: BIM, Bridge Information Modeling, As-built, CADD
Subjects: Transportation
Transportation > Bridges and tunnels
Transportation > Design and Construction
ID Code: 41870
Deposited By: Iowa DOT Research
Deposited On: 07 Nov 2022 17:02
Last Modified: 07 Nov 2022 17:02