modeling for fabrication - dot.state.pa.us...products we produce precast/pre-stressed beams for...
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PennDOT 3D MODELING WORKSHOP MODELING FOR FABRICATION
Russell Dickson Jason Reffner
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Company Background
Products we produce Precast/pre-stressed beams for highway construction Commercial products for parking garages and buildings
How we got into 3D modeling and B.I.M. PCSC established in April 2001 Tekla Xsteel selected from a field of major software vendors
(Autodesk, Bentley, Nemetschek, Solidworks) Tekla Structures Precast released for commercial use in
September 2005 Used for commercial projects since 2004, began use for
selected bridge projects in 2009
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Why We Chose Tekla
Ability to handle large, highly detailed models Innovative way of modeling and handling rebar in a
lightweight manner Commitment to interoperability
Able to handle a large number of 3D/BIM information exchange formats (ifc, dwg, skp)
Partnered with major software vendors to create plug-ins for exchanging information (Autodesk Revit, Graphisoft ArchiCAD)
Easy to customize Standard catalogs of products, embeds, inserts, etc. Drawing templates, reports
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Example Projects
Sherman Valley S.R. 1020 SEC. 02B over Sherman Valley Run in Bedford County, PA
Ashcom S.R. 1004 SEC. 001 over Cove Creek in Bedford County, PA
Wampum S.R. 0288 SEC. L10 over Wampum Run in Lawrence County, PA
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Sherman Valley
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Sherman Valley
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Sherman Valley
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Sherman Valley
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Sherman Valley
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Sherman Valley
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Sherman Valley
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Sherman Valley
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Sherman Valley
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Ashcom Cove Creek Bridge
Precast deck modules with integral parapets
Pre-stressed bulb tee beams
Precast footings
Precast abutment and wing walls
Precast approach slabs
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Ashcom Cove Creek Bridge
Transverse Post-Tensioning Duct
1 Wall Panel per Wing Wall Corner
Transition
2 Wall Panels per Abut Breast Wall 15’ High
NMB Splice Sleeves for Vert Reinf Continuity
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Ashcom Cove Creek Bridge
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Ashcom Cove Creek Bridge
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Ashcom Cove Creek Bridge
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Ashcom Cove Creek Bridge
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Ashcom Cove Creek Bridge
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Ashcom Cove Creek Bridge
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Ashcom Cove Creek Bridge
Completed Project 54 Calendar Days
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Wampum
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Wampum
Precast wing wall with integral curb
Precast cheek wall Precast back wall
Steel pile
Precast pile cap
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Wampum
Precast deck module w/ integral curb
Steel beam cast into deck module
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Wampum
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Wampum
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Wampum
7 days from closure to reopening of bridge
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Current Process
Contract drawings
Transfer contract
drawing info to 3D model
Generate 2D drawings from
model
Submit drawings for approval (PDF)
Approval received
Deliverables to production and the field
Drawings
Reports Data to
ERP
Initial materials info to purchasing
Preliminary details
Material lists
Finalized materials to purchasing
Final material lists
Approved details
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Outputs
Piece Detail
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Outputs
Material Info for Upload to ERP System
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Outputs
Bar Bending Schedule and Lifter Detail for Steel Shop
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Outputs
Miscellaneous Material Details
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Advantages
Realized Standard components help ensure design standards are
followed (reinforcing, embed placement) Automatic material counts Automatic creation of some drawing details
Possible in the future Direct output to CNC machines (rebar bending, casting
bed layout) Take 3D to the field to supplement or eventually
replace paper drawings
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Traditional 2D Collaboration
Project Duration
Des
ign
Dev
elop
men
t
0 10
10
0
Transfer of Drawings
Transfer of Drawings
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3D Collaboration
Project Duration
Des
ign
Dev
elop
men
t
0 10
10
0
Transfer of 3D Data
Transfer of 3D Data
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Options for 3D Collaboration
3D PDF Everyone has a PDF reader installed on their computer Only useful for viewing
3D DWG files 3D geometry
IFC files 3D geometry Additional non-geometric information (object name,
material information)