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Teamwork in the Design Phase ‐ Integrating Design and Construction Forecasting for
Value
John Mack and Jesse Whalen
Herrero Contractors, Inc
Balfour Beatty Construction
John Mack
• VDC / BIM Department Manager at Herrero Contractors, Inc.
• 26 years in the construction industry• Last 3.5 as a general contractor• Previous 22.5 years in the mechanical and plumbing
industry• Doing BIM/VDC for 18 years
– Union trained plumber– Ran detailing department for two large mechanical
contractors– Helped design software for third party AutoCAD and
Project Management programs• Been involved with Lean Construction for 7+ years.• Participate with Lean Construction Institute (LCI),
Center for Integrated Facility Engineering (CIFE) and Project Production Systems Laboratory (P2SL).
• President of the San Francisco Navisworks User Group (SFNUG).
• Established 1955
• Second Generation Family Owned Business
• Areas of Operation: Northern California and anywhere else our customers take us
• Construction Employers Association’s safety award for the past four years
• Primary focus is Integrated Lean Project Delivery
• Providing Preconstruction and Construction Services
• All Projects Done Using VDC
• Full Time VDC Employees
Higher Education
For Other Examples Visit Our Website at www.herrero.com
K-12 Schools
Healthcare
Hospitality
Historical Restoration and Renovation Affordable Housing
Residential
Retail
Tenant Improvement
Jesse Whalen
• Manager of Technology & Process Development (TPD)– Project BIM Execution Support– Pursuit BIM Planning and Execution– R&D / Process Development– Knowledge Sharing / Training
• Bach. Arch. Eng. Penn State University (Construction Mgmt.)
• Eight years with Balfour Beatty– Last four with TPD group– First four in Operations
• Hospital Project Engineer• Prison Asst. Project Manager• Art Museum Asst. Superintendent
Fairfax, VA
Pittsburgh, PA
North
SoutheastSouth Central
Southwest
BBC HSW
North
SoutheastSouth Central
Southwest
BBC HSW
Multi-Family Residential Public
Assembly
TransportationMission Critical
Research Labs
Military Housing
Hospitality Education
Healthcare
Criminal Justice
Corporate
Civic
North
SoutheastSouth Central
Southwest
BBC HSW
TPD
National BIM Workgroup
The Evolving Landscape
• Tools and Technologies
• Processes and Behaviors
• Information Flow
• Revit / BIM
• Opportunity to Collaborate
The Evolving LandscapeInformation Flow
DESIGN CONSTRUCT OPERATE
Owner
GC
Architect
Consultants
Subs
Fabricators
Engineers
End User
Operator
L O N G
I N E F F I C I E N T
The Evolving LandscapeInformation Flow
The Evolving Landscape
Design Construct Design Construct
Design Construct
Hand Drafting Computer Drafting
Building Information Modeling
Why We Are Here
• Opportunity to Collaborate
• Promote Understanding
• Fears and Perceptions
Agenda
• Revit without Integration – The Blind Handoff
• Revit with Integration – Case Studies
• Questions and Discussion
The Blind HandoffGet to know the model Get to know the content
• In what version of Revit was this model created?– Do I need to upgrade my Revit?
– Will I ever transfer this back to the designer?
– Should I upgrade the model or work back in the earlier version?
The Blind HandoffGet to know the model Get to know the content
• Has the model been workshared?– No? Good, move on.
– Yes? Should I keep it workshared? Detach and preserve?
• What am I looking to do with this model?
• Will I have multiple modelers working in this model? Does worksharing make sense for me?
• What do the worksets look like?
• Should I un-workshare? Detach and preserve? Detach and discard?
The Blind HandoffGet to know the model Get to know the content
• What errors and warnings do I get when I open the file?
The Blind HandoffGet to know the model Get to know the content
• What errors and warnings do I get from Manage – Warnings?
The Blind HandoffGet to know the model Get to know the content
• Are there linked Revit files?– No? Good, move on.
– Yes?
• What’s in these linked Revit models? Do I need that content?
• Do I have these Revit models?
• Should I try to obtain them?
• Should I unlink them?
The Blind HandoffGet to know the model Get to know the content
• Are there linked CAD files?– No? Good, move on.
– Yes?
• What’s in these linked CAD files? Do I need to see that content?
• Do I have these CAD files?
• Should I try to obtain them?
• Should I unlink them?
The Blind HandoffGet to know the model Get to know the content
• How is the project browser organized?– Is it intuitive?
– Does it work for how I want to use the model?
– Do I need a new browser organizational scheme?
The Blind HandoffGet to know the model Get to know the content
• Did the author use Design Options?– No? Good, move on.
– Yes? Alright, let’s have a look.
• Are they legitimate design options I need to know about?
• Are they named intuitively?
• How will they affect my use of the model?
• Check them out individually when I’m getting to know the content.
The Blind HandoffGet to know the model Get to know the content
• Did the author use Phases?– No? Good, move on.
– Yes? Alright, let’s have a look.
• Do the Phases really represent periods in time, or were they just a means to control visibility?
• Are the Phases named intuitively?
• Are the Phase Filters named intuitively?
• Are the views named accurately to match their phase and filter?
• How will they affect my use of the model?
• Check them out individually when I’m getting to know the content.
The Blind HandoffGet to know the model Get to know the content
• Project location, coordinates, orientation?– Any changes to default?
– Are there multiple projects I need to align?
• Do I need them to align in Revit?
• Do I need them to align in Navisworks?
The Blind HandoffGet to know the model Get to know the content
• How do the Family Names look?– Intuitive?
– Well described?
– Do they fit their categories?
The Blind HandoffGet to know the model Get to know the content
• The 3D view Host-Only Revit-Only content check
1. Manage – Manage Links
• Revit links – unload or remove
• CAD links – unload or remove
2. Visibility Graphics
• Imported categories – all off
• Model categories – all on
• Filters – none applied
• Worksets – all show
3. 3D View Properties
• Crops and section box off
• Phase Filter set to None
The Blind HandoffGet to know the model Get to know the content
• The 3D view Host-Only Revit-Only content check
4. Select all objects
5. Check the filter
6. Look for red flags
• Generic Models – what are they?
• Model Groups – what do they contain?
• Specialty Equipment – what are they?
• Lines – they don’t represent objects to be constructed
• Openings, shafts, reveals, etc. – they are invisible and represent voids
The Blind HandoffGet to know the model Get to know the content
• The 3D view Host-Only Revit-Only content check
7. Isolate and evaluate one category at a time
• Will I get reliable quantities from these objects?
• Can I use these objects for 4D simulation?
• Can I use these objects for coordination?
The Blind HandoffGet to know the model Get to know the content
• The schedule view Host-Only Revit-Only content check
1. One category at a time, build a quantity schedule
2. Phase Filter – set to None
3. Compare objects in quantity schedule to objects in 3D view
• Do the quantities match?
The Blind HandoffGet to know the model Get to know the content
• Evaluate Design Options
1. One Option Set at a time, activate and evaluate the options• Are they legitimate design options?
• For my intended purpose, what option do I care about?
The Blind HandoffGet to know the model Get to know the content
• Evaluate Phases
1. Build condition isolating phase filters
2. One phase at a time, one filter at a time, isolate and evaluate
• Do the phases really represent phases in time?
• How are the objects falling across the phases?
• How do the phases and object distribution affect what I’m trying to do with the model?
Partnering with Architects
• Case 1: UCSF HSE-15
• Case 2: St Mary’s School
• Case 3: Kaiser San Rafael
• Case 4: Cathedral Hill Hospital (CHH)
• Case 5: St Luke’s Hospital (STL)
UCSF HSE-15 Project
UCSF HSE-15 Project Background
• Craniofacial and Mesenchymal Biology Program Lab
• Single story tenant improvement renovation in an exist ing building
• 13,500± sf
• Lab space
• Owner: UCSF
• GC: Herrero Contractors, Inc.
• Architect: BlakeDrucker Architects
• Started construction 3 months after owners intended start.
Finish 1 month early
• Early identification of as built conditions with the design that
were solved before construction– Pipes serving other floors not in walls
– Lights into the fireproofing on the steel
• Gained early trust between architect
and GC
UCSF HSE-15 Story
St Mary’s School
St Mary’s School Project Background
• New gymnasium, play area and classrooms
• 4 stories, plus roof top play area, over existing parking
• 40,000 ± sf
• Owner: Archdiocese of San Francisco
• Construct ion cost: 14M
• GC: Herrero Contractors, Inc.
• Architect: WRNS
St Mary’s School Story• All documents came from 2D AutoCAD• Herrero recognized the need for a 3D architectural model
– We were resource stricken
• Approached architect to build the initial construction model the building in Revit using the architectural documents.
• One week in, we get a phone call, “how do you people build off what we draw?”
• This process eliminated 100’s of RFI’s that would have ben generated in the field
• Gained trust between the architect and GC.• Allowed us to use hand sketches in meeting to resolve issues.
– Example was a 30 minutes session to resolve a beam penetration
Kaiser San Rafael
Kaiser San Rafael Project Background
• New Ground up ED and New Mechanical Yard separate from building
• Single Story
• 17,500± sf
• Construct ion cost: $6M
• Owner: Kaiser Permanente
• GC: Herrero Contractors, Inc.
• Architect: Lionakas
Kaiser San Rafael StoryInconsistency of Walls Example
Kaiser San Rafael Story• Placed a Herrero person at architects office for 1 week
– Person was well received. In fact they gave him one of their workstations, a company login and access the central model.
– Treated like one of their own employees
• Objective was for the contractor to work with the architect in the architect central model to rebuild partitions and ceilings as a team.– Provide document needs and constructability needs from the same model.
• Outcome– Walls and wall details match– Wall families have contractor information for 5D and total station layout.– Ceilings match details– Ceilings families have contractor information for 5D and total station layout
Cathedral Hill Project, aka CHH
Cathedral Hill Project Background
• New Acute Care Hospital to be Constructed in San Francisco
• 16 Stories, +2.5 Stories Underground Parking
• 1,000,000± sf
• 555 Patient Beds
• Fully glazed enclosure, green roof
• Breaking ground: Fall 2012
• Construction cost: $1 billion
• Owner: CPMC/Sutter Health
• GC: HerreroBoldt Partnership
• Architect: Smith Group JJR
CHH Story: Integrated Project Delivery
• Enables team collaboration.• Promotes a coordinated Building Information Model.• A culture of sharing expertise, resources and experience to solve problems. • IPD agreement allows for shared risks and profits.• Co-location.
CHH Story:Current State of Model-based QTO • Lacking a full understanding of the technology and its integration into the industry
• Minimum communication and understanding between Modelers and the Estimators
• BIM expectations, process and model end-goals not pre-planned and mapped out early in the project
• Subjective trust / faith in the model and its quantity reports
• Not everything can be takeoff from the model
CHH Story: Addressing challengesVD
CEs
timat
ors
A / E
/ Tr
ade
Partn
ers
Design in 3D
Establish Modeling Standards
Specify Types and Format for
Quantity Take-off
Extract Data from Model
Set up Models to Facilitate QTO and Estimating
Export 2D Drawings from
3D Models
Take-off Quantities from 2D Drawings
Final Quantity Validation and
Estimating
Data Analysis
Continuous Team Collaboration
CHH Story: Interior EMP
No Room Finish Data in the model
CHH Story: Interior EMP
BIM
Lin
k
Floor Typology
Wall Typology
Ceilings Typology
Wall Protection Typology
Finish Schedule in Excel
Updated Finish Schedule for EMP
Arch
/TP/
GC
inpu
ts
2D Drawings
CHH Story: Interior EMP
Room Finish Data is in the model and drives color coded plans
CHH Story: Interior EMP
CHH Story: Interior EMP
CHH Story: Interior EMP
CHH Story: Interior EMP
CHH Story: Interior EMP
BIMLink to synchronize model data and Excel Finish schedule
CHH Story: Interior EMP
An accurate/updated Finish schedule in Excel for EMP
The Replacement Hospital at St. Luke’s Campus
St Luke’s Hospital Project Backgroundaka. STL• Acute Care Hospital to be Constructed in San Francisco
• 5 Stories
• 185000± sf
• 80 Patient Beds
• Breaking ground: Fall 2012
• Construction cost: $272M
• Owner: CPMC/Sutter Health
• GC: HerreroBoldt Partnership
• Architect: Smith Group JJR and Boulder Associates, Inc.
STL Story: The Models
• Site, campus • Curtain wall • GFRC • Sheet metal
• Stud framing • Structure
• Ceilings, walls, floors … stuff
• Equipment & Furniture
• Lighting • Ductwork • Security• IT• Pneumatic Tube• Unistrut support
STL Story: Weekly hotspots report
STL: Weekly model change report
STL Story: BIM for Exterior Collaboration
STL Story: Collaborative BIM Details
STL: Collaborative BIM Details
STL Story: Working with Dry Wall
STL Story: Working with Dry Wall
Summary
• Invite the GC’s and Trade Partners to join in early on projects
• Use the GC and Trade Partners for their building knowledge
• Be innovative to create better quality documents for
construction
• Improve on each project
• Creating this behavior and environment is contagious to all
• Test in small controlled batches before applying to everything
Take Away Session
Questions?
John MackJesse Whalen
Herrero Contractors, Inc
Balfour Beatty Construction
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