Model Based Design/Construction for Roadway & Structures: Model-Centric “Planless” Delievery

I-80 Structure Replacement (MP 101 and 99)

BIM for Bridges and StructuresI-80 Structure Replacement (MP 101 and 99)

• I-80 over UPRR at Blackrock

BIM for Bridges and StructuresI-80 Structure Replacement (MP 101 and 99)

• I-80 over UPRR at Blackrock

BIM for Bridges and StructuresI-80 Structure Replacement (MP 101 and 99)

• I-80 over UPRR at Blackrock

BIM for Bridges and StructuresI-80 Structure Replacement (MP 101 and 99)

• SR-36 over I-80

BIM for Bridges and StructuresI-80 Structure Replacement (MP 101 and 99)

• SR-36 over I-80

BIM for Bridges and StructuresI-80 Structure Replacement (MP 101 and 99)

• SR-36 over I-80

BIM for Bridges and StructuresMBDC

• Execution plan – Model authoring

BIM for Bridges and StructuresMBDC

• Execution plan – Design review (design review guide)

Traditional Delivery vs. MBDC Delivery

• Workshop with UDOT and Contractor– Identify critical data from typical plan set element by element– Determine how to present the data in the model

• Contract documents/files– Certification memo – For information only vs. contractual

• Submittal through ProjectWise– Files attributed in deliverables folder

Element Geometry M&P Details Notes NBI# Special Provision

Piles

DataLocationLengthTip ELCut-off ELEmbed DepthPile TypeBatterMaterial propPile data table

DataAttachment

AttachmentPile Details

Attachment Data Attachment

BIM for Bridges and Structures

• Alternate structures design approach– General notes

Contains notes for the majority of elements Summarizes quantities

– Simplified situation and layout Provides general layout information Supports Federal Highway coordination

– Details Includes items not in the model

Organization

• Create the workspace - similar to 2D projects– Levels– Element templates– Features– Model templates

• File folder structure – Simple navigation – Multiple document types

• Create unique naming convention– Each file– Multiple files of same type

Model Development

• Base model– True location and geometry (solid elements)– Actual location and size of reinforcement– Reports

• Elevations and quantities– Drawings (sheets)

Challenges

• Workspace - unstable due to different versions of programs• Software

– Basic geometry – great– Additional model adjustments

• Attachments– Railroad– Software limitations– Additional detailing, etc.

• Design process – Additional time– Patience

Design ReviewsTraditional

Design ReviewsMBDC

• Tools– Bentley Navigator– BlueBeam Revu Session

• Training• Hands-on experience

Quality Control/Quality Assurance

• Purpose– Create designs that are safe, economical,

constructable, maintainable• Questions

– What do you check in 3D Model?– What is the difference between QC of

traditional plans and a 3D model?

Quality Control/Quality AssuranceQuality Control/Quality Assurance

Quality Control/Quality AssuranceMBDC

Model Demonstration

Questions ?