Fall BIMForum Orlando, FL

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

#BIMForumED

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)

7

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

10

Information Delivery Manual Development

Construction

Phases

Team Players

and

Exchanges

11

Process Map

12

Process Map

13

14

Level of Detail

Level of Detail

15

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

18

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

22

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

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

23

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

24

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

Sp

eci

fica

tio

n

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

Lase

r Si

mu

lati

on

Q

C

Sim

ula

tio

n

Traditional Production Ticket