BIM Preparation for the USACEBIM Preparation for the USACE

Lessons Learned in Conversion from REVIT to BENTLEY BIM

Presenters:

Samuel HudsonBIM Support Specialist

Jeff OwensAIA, LEED AP

L E llLee EzellConsulting BIM Specialist

Oa BIM Support Services•BIM Consultation / USACE Compliance•Support for Attachment F

•Bentley-based BIM•Architectural Structural MEP•Support for Attachment F

•Visualization•Reporting for for Cost Estimation

•Architectural–Structural–MEP•3D PDF Documentation•4D Construction Simulation Video

Presentation Outline

Contract Deliverables / Attachment F

*

Workflow

*

Lessons Learned

Relevant Projects

Supporting Contractor-Lead Teams:

COFCOFContent from REVIT to Bentley, MEP

WITContent from REVIT to Bentley, All Disciplines

WITContent from REVIT to Bentley, All Disciplines

Contract Deliverables – Attachment F

3 types in use - USACE determines which is to be used…

Type 1 - Project for Center of Standardization

Design – Contractor’s BIM application of choice.

Submittals – Bentley BIM Applications, V8XM Workspace

Type 2 - Non-COS

Design – Contractor’s BIM application of choice.

Submittals – BIM Application specified in RFP

Type 3 - Non-COS, BIM Neutral

Design – Contractor’s BIM application of choice.

Submittals – Contractor’s BIM Application of choice

Attachment F Minimum Requirements

…Model may vary in the level of detail for individual elements, but at a minimum must include all features that would be included on a quarter inch (1/4”=1’-0”) scaled drawing.

all equipment piping & fittings fixtures including necessary intelligence to produce…all equipment …piping & fittings …fixtures… including necessary intelligence to produce accurate plans, elevations, building/wall sections, and schedules…

Different Perspectives

USACE

•There is no “Spirit of the Contract”

•There is no “Conversion” from REVIT to Bentley

•Contractors / AEs must demonstrate acceptable•Contractors / AEs must demonstrate acceptable “incorporation” of objects from other platforms prior to project startup.

•Files must be editable / fully functional in specified application upon submittal.pp p

Different Perspectives

USACE

•There is no “Spirit of the Contract”

•There is no “Conversion” from REVIT to Bentley

•Contractors / AEs must demonstrate acceptable

Contractor / AE

P id O ti D i t B t C t•Contractors / AEs must demonstrate acceptable “incorporation” of objects from other platforms prior to project startup.

•Files must be editable / fully functional in specified application upon submittal.

•Provide Optimum Design at Best Cost

•Take advantage of existing CAD/BIM systems

•Design Solution may include sources that don’t include or originate from Bentley applicationspp p include or originate from Bentley applications.

•To satisfy Delivery of Submittals and As-Builts…Choice between investing in and training for in-house Bentley BIM…or…using 3rd Party BIM support services.

Different Perspectives

USACE

•There is no “Spirit of the Contract”

•There is no “Conversion” from REVIT to Bentley

•Contractors / AEs must demonstrate acceptable

Contractor / AE

P id O ti D i t B t C t•Contractors / AEs must demonstrate acceptable “incorporation” of objects from other platforms prior to project startup.

•Files must be editable / fully functional in specified application upon submittal.

•Provide Optimum Design at Best Cost

•Take advantage of existing CAD/BIM systems

•Design Solution may include sources that don’t include or originate from Bentley applications

BIM Support Provider

•To support the process / path YOU have chosen to follow.pp p include or originate from Bentley applications.

•To satisfy Delivery of Submittals and As-Builts…Choice between investing in and training for in-house Bentley BIM…or…using 3rd Party BIM support services.

•To advise you on potential pitfalls if they are seen coming.

•To assist You to meet the terms of the required d li bldeliverables.

•Early start on any project makes it easier to integrate.

What will BIM Support Require ?

•Project RFP with Attachment F for Overview & Deliverable Requirements.

•Team Contacts & Areas of Responsibility•Milestones for Delivery

•3D Geometry of all building systems in DWG for reference•What level of Completion was the 3D taken to?•Have Building Systems been checked for Interferences?

•2D CAD Sheets in DWG and PDF for reference and incorporation.•Were Documentation Symbols in REVIT setup for USACE standards…for NCS?

•Manufacturer Cut Sheets as Basis of Design later for As Builts•Manufacturer Cut Sheets as Basis of Design…later for As-Builts.

Workflow

Fidelity at import is not available by Conversion from REVIT.

ReConstruction from Scratch is the Process that must be used.

REVIT

EXPORT to DGN

EXPORT to DWG

IFC to DGN

ReCONSTRUCTION DGN

Process Overview

DisciplineLevel 3D

CompositeFacility 3D

Extracted 2D Views

2D CAD Models

2D CAD Sheets

ARC

INTBLDG

1

Plans

Elevs

Plans

Elevs

G-001 to G-999C-001 to C-999L-001 to L-999S-001 to S-999A-001 to A-999I 001 to I 999

Compose References

STR

MECBLDG

2

1 BldgSects

WallSects

BldgSects

WallSects

I-001 to I-999F-001 to F-999P-001 to P-999M-001 to M-999E-001 to E-999T-001 to T-999

&Annotate

PLU

FP

ELE

BLDG 3

Dtls

Diag

SchdSchdELE

TEL

Schd

3D 2D from Models

Schd

2D from CAD

ReContructing 3D

-Split Supplied DWG into Separate Models.S lit b Di i li / B ildi S t-Split by Discipline / Building Systems

-USACE Naming Format for Model DGNs

-Use DWGs as Point of Reference when constructing Bentley BIM-Location / Dimension / Quantity-Reconstruct over referenced DWG 3D and/or 2D PlansReconstruct over referenced DWG 3D and/or 2D Plans

-Find Objects for Incorporation and copy forward.-Objects that will not need to be re-edited by Bentley-Drop to Elements then Select & Re-Group the Set-Apply USACE Parts to incorporated Object.-Attach Instance Data and Edit when Required.

ReContructing Views / Creating Extractions

-Extraction Process well defined within Bentley.-Cut Lines in Con-Docs define where 3D is sliced.-Using Rules by Discipline to affect output.g y p p-Run extractions and compare to DWG equivalents from REVIT-USACE File Naming Format for Extractions

-Add Missing Elements from Extraction into CAD Model file.-DWG reference may offer additional elements for incorporation.USACE Fil N i F t f CAD M d l-USACE File Naming Format for CAD Models

ReContructing Schedules

-Schedules are Excel Spreadsheets.-Populated by Instance Data from the models…-Filled in Manually when not tied to the models…(export from REVIT?)y-Paste into CAD Sheets for inclusion-USACE Excel Schedules included with Workspace

ReContructing CAD Sheets

-Create separate DGN Sheet for each Hardcopy Sheet.-Reference DWG CAD Sheets if available to match the composition.-Attach CAD Models & Extractions as references and Compose p-Attach Excel Schedule Graphics and Compose

-Copy forward annotations if graphically compliant…-Remap colors and lines if required

-OR…Create new compliant annotations and symbols

-USACE File Naming Format for CAD Sheets.

Strengths in Process

Bentley from Conception through As-Built:

•Designers use CAD/BIM of choice…use BIM Support as expanded capacity alongside Designers or Self-Perform .

•Bentley Model prepared for Interim Reviews and Submittals in full compliance with Attachment F. , including checking for and resolving interferences.

•Material Quantities in support of Cost-Estimates provides cost reference for design.

•4D Simulation to Resolve / Sell Difficult Construction Sequences•4D Simulation to Resolve / Sell Difficult Construction Sequences

Bentley from 65% through As-Built:

•Designers use their CAD/BIM platform of choice, keeping all efficiencies developed internally to those team membersefficiencies developed internally to those team members.

•BIM Support initiates after design is substantially resolved, preparing new BIM in Bentley format from scratch.

Weaknesses in Process

Bentley from Conception through As-Built:

•If 3rd Party Bentley Support, Higher Cost, as Bentley BIM is reworked through design iterations and interference resolution.

•More involvement in Design Process.

•Plan for some degree of lag with 3rd Party Team to catch up state of in-house design.

Bentley from 65% through As-Built:

•Not Compliant with Requirement for Interim Submittals•Not Compliant with Requirement for Interim Submittals

•BIM Support used as safety net when reworking the BIM around design already established.

•Discovery of “Canned” objects from other platforms that do notDiscovery of Canned objects from other platforms that do not truly represent Equipment or Systems they are supposed to.

•Less effective use for Material Quantities in support of Cost-Estimates, a valuable Contractor Elective in Attachment F.

Moving Forward

Software Development•2D becomes Live in V8i•Plugin for REVIT being improved•Imodel format offers collaboration•Imodel format offers collaboration

Workflow Improvements•Requirements for Support are Defined•We have learned what to ask.

Try to get “On-Board” much earlier•Early Involvement results in better product•Early Involvement satisfies the USACE.

Attachment F Contractor Electives

Bentley BIM can support project scheduling:

6.3 Project Scheduling using the Model:Bentley BIM can support project scheduling through 4DBentley BIM can support project scheduling through 4D Construction Simulation

Bentley BIM can provide support for Cost Estimating:

6.4 >> for the Execution Plan.6.4.1 >> for Interim Submittals.6.4.2 >> Supporting Data for an MII Estimate at Interim Submittals and at project completion.

Communication

Questions / Discussion

Thank You

For

Your Time.

Samuel HudsonBIM Support Specialist

Sam@owensarchitects.com309 256 8786

Jeff OwensAIA, LEED AP

Jeff@owensarchitects.com859 983 2801

Lee EzellConsulting Specialist

Lee@owensarchitects.com.859 983 2801309.256.8786

.859.983.2801

.

Owens ArchitectsLawrenceburg, Kentucky

859.983.2801

Owens Architects is dedicated to designing buildings that create good function and inspiring beauty while demonstrating fiscal accountability and good earth stewardship.

Our goal is to provide the highest level of professional service to institutional, commercial and residential clients that desire beautiful and durable buildings which can be built within the constraints ofclients that desire beautiful and durable buildings which can be built within the constraints oftheir construction budgets.

Human needs design is the principle basis of our design philosophy.

www.owensarchitects.com859-983-2801