progress. Although they used a third-party software during the bidding process, the software did not meet their subsequent modeling needs. To achieve their digital goals and implement lifecycle, collaborative BIM processes, Comsa needed integrated 3D modeling technology and an open connected data environment to make the model accessible to the entire team. Establishing a Collaborative 3D Modeling Environment Comsa selected MicroStation, OpenRoads, and OpenBuildings to establish a collaborative 3D modeling environment, enabling them to model the different geological and structural elements and link them in an integrated BIM model. “I used Bentley products because they include the most appropriate tools and workflows for a project of this size: topography, road layout, 3D modeling of the structure, metadata, and export to IFC. In addition, I have been familiar with Bentley technology for more than 20 years,” said Pardo. The different discipline-specific models are integrated into a unified 3D project model using OpenBuildings, and then shared in an open file format among the team for a holistic view and better understanding of the project works. Based on the BIM model, the team could accurately obtain earthworks and surface volumes, then identify and resolve differences between the theoretical design and the executed version. Additionally, the interoperability of Bentley software with other technology applications allowed the team to access and manipulate the federated model in an open BIM format, as well as digitally track monthly progress of on-site works. Working in a collaborative, dynamic modeling environment, Comsa was able to graphically check whether the different component works would be correctly executed and remotely monitor the construction process. The BIM model was key to visualizing the finished project before it even began, and the final model represents the project as it was actually executed. “The 3D model helped us understand how all the pieces of the puzzle fit together,” said Pardo. BIM Sets New Standards “Modeling the different objects and linking them in the overall model enabled us to check some geometrical errors that would have gone unnoticed until they were made on site,” said Pardo. Working with the 3D models using Bentley’s BIM technology, Comsa could digitally see any mistakes and identify potential costly errors prior to construction. Sharing the BIM model on a monthly basis made it easy for all participants to see the progress of the project. The integrated digital solution facilitated better understanding of the project and optimized construction. It also helped optimize time and resources, reduce pollution, and improve overall project execution. The 3D model will be used for continued asset maintenance and management. “MicroStation, OpenRoads Designer, and OpenBuildings Designer, combined with BIM methodology, have facilitated understanding of the project, the monitoring of the construction, and the maintenance of the asset,” said Pardo. This project has highlighted the pillars of BIM methodology for Comsa—including transparency, collaboration, and communication—to provide the best client service. Working
in a collaborative BIM environment helps with the understanding, arrangement, and execution of complex engineering projects. As a company, BIM allowed Comsa to not only successfully execute this bridge renovation, but also to create digital libraries that will serve as the basis for other projects, setting new corporate digitization standards for project delivery.
Project Summary Organization: Comsa Corporación Solution: Bridges and Tunnels Location: Cabrianes, Barcelona, Spain Project Objectives • To renovate and modernize a century-old bridge structure to accommodate additional vehicular traffic, pedestrians, and bicycles. • To use the 3D model to digitize workflows, construction monitoring, and asset management. Project Playbook: AutoPIPE, MicroStation, OpenBuildings, OpenRoads Fast Facts • The project consists of widening the bridge from 6 meters to 12 meters to include two-way traffic lanes. • Initially, the project was not modeled, and paper plans failed to provide a holistic view of the project. • Using Bentley applications, Comsa established a collaborative 3D BIM model for better understanding of design and construction plans. ROI Using a digital, visual 3D model, Comsa identified potentially costly errors prior to on-site construction.
AMY HEFFNER is a director of product marketing at Bentley Systems. She leads a team of global product marketers focused on Bentley’s civil design, bridge design and analysis, building design, and mobility simulation product lines. Joining Bentley in 2007, Amy has held various roles in product marketing, corporate marketing, and user-focused events and training. She has over 18 years of experience in marketing, event planning, communications, and project management. Prior to her time at Bentley, Amy worked as an associate producer at WPVI Philadelphia and as a marketing manager for DesignDesign, Inc., a Philadelphia area industrial and creative design firm. She can be reached at amy.heffner@bentley.com .
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October 2023 csengineermag.com
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