FALL 2016

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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Page 47 of 55

F H WA 46 | ASPIRE Fall 2016 Information modeling refers to an advanced modeling approach that is based on generalized definition of the "objects" that make up a system. It is a holistic digital representation of physical and functional characteristics of a facility, which provides a shared knowledge resource for information to support a reliable basis for decisions during it s life cycle. Information modeling is relatively mature and commonly applied in the building industry, but much less so in the bridge industry. Some form of computer modeling and analysis has been done for most of our nation's bridges, from conception to design to fabrication to construction to inspection to management to demolition. Bridge information modeling (BrIM) offers the opportunity to use digital project delivery, multi-dimensional analysis, visualization, virtual assembly, automated machine control, fast routing and permitting, network-level study, and more, to integrate project development, construction, and asset management. B r o a d i m p l e m e n t a t i o n o f B r I M w o u l d provide a transformative change in the way that engineers and owners execute workflows. It would provide a framework to move the engineering community beyond the outdated practice of communicating information via two- dimensional plans that require multiple manual data reentries downstream. It would allow engineers to discover conflicts and problems with fabrication and construction earlier in the design development and mitigate them in the office instead of in the field. It would move engineering away from "bookkeeping" activities such as quantity takeoffs and plans and shop drawing development/approval and move toward creation of a shared resource that is more useful to others downstream. Need Current bridge modeling practice is limited in sophistication, level of detail, compatibility, exchangeability, and downstream value. BrIM- based engineering tools are available in some commercial software, but they are mostly FHWA Supports Advanced Modeling with Bridge Information by Dr. Brian Kozy, Federal Highway Administration Bridge abutment model. All Figures: Federal Highway Administration. Concrete post-tensioned box-girder model.

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