Winter 2019

ASPIRE is a quarterly magazine published by PCI in cooperation with the associations of the National Concrete Bridge Council. The editorial content focuses on the latest technology and key issues in the Concrete Bridge Industry.

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C O N C R E T E B R I D G E T E C H N O L O G Y 20 | ASPIRE Winter 2019 by Ivan Liu and Jerry Pfuntner, FINLEY Engineering Group BrIM Redefi ned Bridge information modeling continues to steadily develop as a tool that blends three-dimensional (3-D) visualization capabilities with databas e s torage of information. In the development of complex projects, FINLEY has redefined bridge information modeling as bridge integration mod eling (BrIM). This approach takes the next logical step in the use of 3-D visualization and advanced engineering software to integrate bridge information databases into the planning, design, construction, maintenance, and inspection processes. BrIM can be used to improve efficiency, consistency, and quality throughout the entire life cycle of a bridge, from the first planning stages to asset management of the completed structure. In this article, the Veterans Memorial Bridge in Daytona Beach, Fla., and Wekiva Parkway Section 6 in Sorrento, Fla., are provided as examples for FINLEY's application of BrIM on complex bridge projects. Phases of the BrIM Workfl ow Traditionally, the workflow for a project involves the analysis of the bridge, the design of bridge components and temporary works, and the production of construction drawings. Within those three phases, engineers transfer bridge d a t a , s u c h a s ro a d w a y g e o m e t r y, concrete geometr y, pos t-tensioning l a yo u t s , a n d m e m b e r s i z e s , i n t o the analysis model, then again into temporary works models, and once again into compu ter-aided design/drafting (CAD) models. Before the introduc tion of mod ern e n gin e erin g s o f t w a r e t o in t e gra t e bridge data among separate models, that process of data transfer was time consuming and cumbersome, and there was a risk with each transfer that the data might be inpu t incorrec tly or inconsistently. The ideal scenario is to use software to import and export the bridge data among models to minimize repeated efforts by the engineer. The BrIM workflow is a culmination of FINLEY's effor ts to combine its p ro j e c t w o rk fl ow ex p eri e n c e w i t h modern engineering software containing integration capabilities. The following three phases for BrIM workflow have been developed: 1. Input of global CAD geometry; 2. D e v el o p m e n t o f t h e a n a ly s i s , c o n s t r u c t io n , a n d c o m p o n e n t models; and 3. Generation of the integrated 3-D bridge model. Phase 1, the foundation of this workflow, is the AutoCAD engine used within the analysis software SOFiSTiK, w hich FINLEY uses for complex bridge design. The ability to create the geometry of the analysis model through an AutoCAD engine allows the BrIM workflow to begin with a single 3-D geometry model that centralizes the bridge data used by the analysis, visualization, and CAD software. A single centralized and integrated geometry model, or global CAD geometry, Bridge integration modeling (BrIM) workflow can provide an integrated solution for managing data for design, construction, and asset management from analysis to production to reality. Figures: FINLEY Engineering Group. Photo: Johnson Bros. Corporation. Traditional workflow for bridge design and construction with repetitive effort and risk of errors. Figure: FINLEY Engineering Group.

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