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Many construction firms are aware of the benefits of using building information modeling, or BIM, to provide conflict resolution by identifying problems before they happen and to better facilitate building systems integration. However the benefits of BIM typically stop in the office. Rich digital models are often converted to 2D paper drawings for use in the field, where guesswork and manual layout processes can cause errors that might not become evident until later in the construction process. Additionally, on renovation or retrofit projects, the models themselves might contain errors since many models are developed from outdated and inaccurate as-built paper drawings. These inaccuracies lead to problems in the field during construction, which drive up project costs, increase risks and even derail an entire project.
There is a better approach. In an ideal BIM workflow, the project team captures reality and informs the 3D model with highly accurate as-built point clouds. New design models are then created around the as-built point clouds, and construction layout points are added to the model. These points are then replicated on the jobsite using tools such as total stations and multistations (a new type of total station that has the added ability to capture laser scan data) to bring BIM to reality. During construction, as-built information is captured with high definition scanners and multistations. The point clouds and discrete measurement points are compared against the as-designed model to immediately identify deviations and head off expensive downstream coordination issues in the field.
The BIM Learning Center provides the information you need to connect the digital world to the real world in a complete BIM lifecycle, so you can reap the full benefits of BIM. Explore the site, and learn how you can achieve less rework, more predictability and higher profitability with BIM. If you would like more information, please contact us.