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Fall BIMForum Orlando, FL

Disney's Yacht Club Resort October 20-21, 2015

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Precast and BIM Jason P. Lien, PE, FPCI jlien@enconunited.com

Precast Outline • Precast BIM History

– Importance to nearly every other trade

• IFC as a standardized method of exchange

• PCI Exchange Models

• AGC LOD Spec and Precast

• BIM Case Study

Where is Precast in BIM Architectural

HVAC

Electrical Plumbing

Structural

Accessories

3

Precast

Precast Model Production

Drawings

Scheduling

Accounting

Hardware

Drawings Erection

Drawings

Reinforcing

Reporting

September, 2013 4

Brief History 2001 - 2002 • 23 Precast companies formed the Precast Concrete Software Consortium

• Hired Georgia Tech to facilitate the development of an RFP for the creation of an industry specific BIM authoring tool

• RFP Details – Contained design and analysis linking

– 3D Modeling

– Drawing automation

– Fabrication level detail and data

• RFP Did not cover data passing between applications

5

RFP Results • About 12 vendors responded, single vendor selected, Tekla to

enhance xSteel

• A second group was formed, not supported by the consortiums efforts, StructureWorks

• After multiple years of development, testing, and implementation, the technology was still “young” and not fully adopted

Fast Forward 7 years, (2009-2010) • Autodesk Purchased Revit (2002) Added 7 yrs of Development

• PCI Created the BIM Advisory Committee (morphed into their BIM Committee) • Utilized Georgia Tech for Research with primary funding from the

Charles Pankow Foundation

• Focus on Data Exchange

• Extend IFC to include Precast (at the time IFC vs 2x3 current version IFC4 released March 2013)

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Why IFC

Architectural

Structural

8

Precast

Importance of Advisory Committee and Research

• Established a method to determine the required data exchanges and synthesized it to the smallest amount of data necessary for exchange

• Performed gap analysis of existing IFC 2x3 exchange methods and implemented required modifications in IFC4

• Initiated the development of IFC Data Translation Testing, “If I export data, is it accurate, and does it need to be certified?”

9

• Standardization the exchange of information

• Reviewed Multiple Delivery Models

– Architectural Lead Project (Owner Driven)

– Precast Lead Project (Design Build)

– Precast as Subcontractor (Bid Build)

• Focused on Design · Fabrication · Delivery · Installation

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Information Delivery Manual Development

Construction

Phases

Team Players

and

Exchanges

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Process Map

12

Process Map

13

14

Level of Detail

Level of Detail

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Level of Detail

Level of Detail

Original Intent

Batter Camber

Batter

Length before tensioning, batter ends, no camber

Length after tensioning, ≈ plumb ends, cambered

As Cast

As Erected

Level of Detail

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ISO-10303-21; HEADER; FILE_DESCRIPTION(('ViewDefinition [CoordinationView, QuantityTakeOffAddOnView]'),'2;1'); FILE_NAME('PCI IFC test file 5.ifc','2009-12-24T09:51:53',('Rafael Sacks'),('Structural Designer'),'EXPRESS Data Manager version:20070116','Tekla Structures 16.0 Build:563554/27.10.2009, IFC Export Version:119/Oct 23 2009',''); FILE_SCHEMA(('IFC2X3')); ENDSEC; DATA; #1= IFCPERSON('Rafael Sacks','Undefined',$,$,$,$,$,$); #3= IFCORGANIZATION($,'Technion - Israel Institute of Technology',$,$,$); #5= IFCCALENDARDATE('23','12','2009'); #7= IFCPERSONANDORGANIZATION(#1,#3,$); #8= IFCAPPLICATION(#3,'16.0','Tekla Structures','Multi material modeling'); #9= IFCSIUNIT(*,.LENGTHUNIT.,.MILLI.,.METRE.); #10= IFCSIUNIT(*,.AREAUNIT.,$,.SQUARE_METRE.); #11= IFCSIUNIT(*,.VOLUMEUNIT.,$,.CUBIC_METRE.); #12= IFCSIUNIT(*,.MASSUNIT.,.KILO.,.GRAM.); #13= IFCSIUNIT(*,.TIMEUNIT.,$,.SECOND.); #14= IFCSIUNIT(*,.PLANEANGLEUNIT.,$,.RADIAN.); #15= IFCSIUNIT(*,.SOLIDANGLEUNIT.,$,.STERADIAN.); #16= IFCSIUNIT(*,.THERMODYNAMICTEMPERATUREUNIT.,$,.DEGREE_CELSIUS.); #17= IFCSIUNIT(*,.LUMINOUSINTENSITYUNIT.,$,.LUMEN.); #18= IFCUNITASSIGNMENT((#9,#10,#11,#12,#13,#14,#15,#16,#17)); #20= IFCOWNERHISTORY(#7,#8,$,.ADDED.,$,$,$,1261641113); #21= IFCCARTESIANPOINT((0.,0.,0.)); #25= IFCDIRECTION((1.,0.,0.)); #29= IFCDIRECTION((0.,1.,0.)); #33= IFCDIRECTION((0.,0.,1.)); #37= IFCAXIS2PLACEMENT3D(#21,#33,#25); #40= IFCGEOMETRICREPRESENTATIONCONTEXT('Body','Model',3,1.0000000E-5,#37,$); #43= IFCGEOMETRICREPRESENTATIONCONTEXT('BoundingBox','Model',3,1.0000000E-5,#37,$); #46= IFCPROJECT('3Sj3c8AR52ZwdXihqTohdw',#20,'PCI NBIMS - Charles Pankow Foundation','Slab composed of Hollowcore components','Object type','LongName','Phase',(#40,#43),#18);

/* Hollowcore Profile */ #116= IFCCARTESIANPOINT((0.0,0.0)); #120= IFCCARTESIANPOINT((2417.7625,0.0)); #124= IFCCARTESIANPOINT((2427.531731,9.76923077)); #128= IFCCARTESIANPOINT((2427.531731,9.76923077)); #132= IFCCARTESIANPOINT((2427.531731,19.53846154)); #136= IFCCARTESIANPOINT((2417.7625,29.30769231)); #140= IFCCARTESIANPOINT((2412.801563,106.3014423)); #144= IFCCARTESIANPOINT((2404.467188,111.2623798)); #148= IFCCARTESIANPOINT((2401.490625,156.3076923)); #152= IFCCARTESIANPOINT((2409.229688,161.2686298)); #156= IFCCARTESIANPOINT((2407.245313,191.2326923)); #160= IFCCARTESIANPOINT((2398.315625,202.3451923)); #164= IFCCARTESIANPOINT((19.446875,202.3451923)); #168= IFCCARTESIANPOINT((10.5171875,191.2326923)); #172= IFCCARTESIANPOINT((8.5328125,161.2686298)); #176= IFCCARTESIANPOINT((16.271875,156.3076923)); #180= IFCCARTESIANPOINT((13.2953125,111.2623798)); #184= IFCCARTESIANPOINT((4.9609375,106.3014423)); #188= IFCCARTESIANPOINT((0.0,29.30769231)); #192= IFCCARTESIANPOINT((-9.76923077,19.53846154)); #196= IFCCARTESIANPOINT((-9.76923077,9.76923077)); #200= IFCPOLYLINE((#116,#120,#124,#128,#132,#136,#140,#144,#148,#152,#156,#160,#164,#168,#172,#176,#180,#184,#188,#192,#196,#116)); #266= IFCAXIS2PLACEMENT2D(#265,$); #267= IFCCIRCLE(#266,75.40625);

Level of Detail

IFC Export Testing Exchanges reduced to 12 data sets or Exchange Models (EM)

EMPC-1: Building Concept (BC)

EMPC-2: Precast Concept (PC)

EMPC-3: Precast Contract Development (PCD)

EMPC-4: Engineering Design Development (EDD)

EMPC-5: Architectural Contract (AC)

EMPC-6: Engineering Contract (EC)

IFC Export Testing Exchanges reduced to 12 data sets or Exchange Models (EM)

EMPC-7: Precast Detailed Coordination (PDC)

EMPC-8: Structural Review & Coordination (SRC)

EMPC-9: Engineering Analysis Results (EAR)

EMPC-10: Final Precast Detailing & Coordination (FPCD)

EMPC-11A: Production and Erection Data (PED)

EMPC-11B: Architectural Review and Coordination (ARC)

Current Status • All 12 models have been validated and

documented with ifcDoc

• Final report forthcoming

• PCI’s next step is to “encourage” software vendors to implement

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• Multiple Sections pertain to Precast/Prestressed Concrete components and Structures

• Primary Sections To Include Precast As An Option: • Foundation • Structural Faming • Exterior Enclosure

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LOD300 Element modeling valid for: • All 200 attributes • Specific sizes and locations of main members • Concrete defined per spec - Metadata • Drainage path and floor slopes • Surface Finish Requirements - Metadata • Required non-graphic information:

• Penetrations for MEP, etc. • Finishes, camber, chamfers, etc. • Typical details • Embeds and anchor rods • Aggregate, clear clover • Reinforcing spacing

• Live loads • Dead Loads • Seismic, Wind • Diaphragm Loads

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LOD350/400 Element modeling valid for: • Possible Sections – Spandrels, Column Covers, Wall Panels • Concrete Color(s) – Face Mix, Backup • Concrete Finish – Acid Etc., Sand Blast, Pains, Stain • Inlay Details – Brick, Split Face CMU, Metal pan etc. • Form Liner Details • Architectural Feature Detail – Reveals, Slopes, Drafts, • Joint / Corner Feature Detail - Quirk, Square / Butt • Insulation Details for Sandwich Wall Panel System • Interior and Exterior Wythe definitions • Design Requirements – Loading, Inter-story Drift,

Displacements • Wall designation – Shear Wall vs Cladding

100

LOD

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Beam Girder Double Tee Stair Section

400

200

300

350

Precast LOD Models

100 400 200 300 350

LOD Specification

Wall

Column

Precast LOD Models

Case Study: Hyatt House, Naples FL

This is a total precast structure Pre-Sales (Revit for conceptual) No model for estimating Post Sale • Architecture – Revit • Mechanical – Revit • Electrical – AutoCAD • Fire Protection – Revit • Plumbing – Custom plumbing Software • Structure(Precast) – StructureWorks

Hotel Parking Structure

StructureWorks • Structure Completely modeled and all drawings

(Individual, Erection, XceleRAYtor) developed from model.

• Sub-Trades Incorporated into Products via IFC Import The blue plumbing was converted from an IFC File).

• Traditional Piece Drawings • Laser Projection File Generation • Light drawing versions still needed for post pour QC

checks • Erection Drawings • Visual Erection Load List

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Traditional Production Ticket