teamwork in the design phase ‐ integrating design and construction forecasting for value

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


Southwest

BBC HSW

Multi-Family Residential Public

Assembly

TransportationMission Critical

Research Labs

Military Housing

Hospitality Education

Healthcare

Criminal Justice

Corporate

Civic

North


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?


• 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?


• What errors and warnings do I get when I open the file?


• What errors and warnings do I get from Manage – Warnings?


• 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?


• 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?


• 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?


• 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.


• 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.


• 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?


• How do the Family Names look?– Intuitive?

– Well described?

– Do they fit their categories?


• 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



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



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 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?


• 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?


• 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


• 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


• 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


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


Room Finish Data is in the model and drives color coded plans


BIMLink to synchronize model data and Excel Finish schedule


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

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

teamwork in the design phase ‐ integrating design and construction forecasting for value

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