Leveraging BIM to Reduce Risk
Kyle Holmes Vice President of Support Operations The Brandt Companies, LLC [email protected]
TOPICS
• Very Brief Corporate Overview
• Myths To Dispel
• Why do BIM?
• The Seven Dimensions
• Making the Model Do Work
• So What?
• BIM Productivity Pitfalls
• Practical “Holy Grail” for BIM
OVERVIEW
Brandt is the largest mechanical, electrical, and plumbing services provider in Texas. For 61 years we have been designing, building, upgrading and maintaining energy efficient building systems for our customers.
$310 Million (US) in 2012 2000+ Employees 41 Engineers on staff Offices in Austin, Dallas,
Fort Worth, Houston, San Antonio and Waco
Brandt renovated an existing structure to create a new headquarters building that achieved LEED-Gold status. We focused on five LEED categories which are Brandt’s area of engineering and design expertise: Energy Efficiency, Mechanical Innovation, Water Efficiency, Sustainable Site, and Recycling/Reuse.
Myth #2 – BIM solves all problems
• BIM is no substitute for planning
Poor
Planning
Non-BIM
Process
Poor
Results
Poor
Planning
BIM
Process
Poor
Results
The Reality
BIM Provides a Digital Mockup
So Builders Can Confirm What They Will Actually Build
Before They Build It
(Decisions Made Earlier)
SHORTEN SCHEDULE PROMOTE FABRICATION USE INTEGRATED FABS
BETTER HOUSEKEEPING J.I.T. DELIVERY
LEAN CONSTRUCTION PEAK SHAVING
BETTER DESIGN ASSIST DIGITAL SUBMITTALS
FACILITIES MGMT.
THE “OTHER” BIM (Beautiful Images for Marketing)
A PROPER BIM PROCESS
generates an
OPPORTUNITY
that can allow
PLANNED FABRICATIONS
to
REDUCE ONSITE RISK
7D of BIM According to Salesmen
• 3D Modeling work x,y,z
• 4D Scheduling work
• 5D Itemizing/Buying work
• 6D Documenting work
• 7D Facility management work
How Salesman RANK the dimensions
• 7D Facility management work
• 6D Documenting work
• 4D Scheduling work
• 3D Modeling work x,y,z
• 5D Itemizing/Buying work
A more productive RANKING
• 3D Modeling work x,y,z
• 5D Itemizing/Buying work
• 4D Scheduling work
• 6D Documenting work
• 7D Facility management work
Why?
The two “leftover” dimensions
• 4D - Scheduling work
‒ You must have the 5D data for 4D to work well
‒ Tools for scheduling exist today outside of BIM
• 6D/7D – Documenting/Facility Mgmt.
‒ Convenience (but who is the customer?)
Two keys for BIM productivity
• PULL BIM Schedule from GC Schedule
• Make the COORDINATED MODEL do as much work as possible
Schedule Secret
• The critical path for schedules used to be long lead equipment/material items
• The new critical path for schedules is actually the MEP coordination process ‒ This is particularly true as more projects begin
construction before MEP design is complete
Scheduling
• Synchronize
• Sleeves
• Coordination
• Fab shop
• Field work
• Pull sleeves from structure
• Pull rest from MEP rough in
Sleeves
Coord
Fabs
Field
We do this for every job, and we maintain it because…
… BIM is a shop with a production schedule…
… like every other kind of shop.
Making the Model DO WORK • If you have done 5D (Procurement)
properly, a coordinated model can tell you:
‒ Bill of materials PURCHASING
‒ Field hours LABOR PLANNING
‒ Shop Hours SHOP PLANNING
‒ Projected cost FINANCIALS
‒ Critical locations SLEEVES/INSERTS
‒ Metrics ESTIMATING
Our Mantra
“We MODEL what we SUBMIT,
BUY what we MODEL,
FAB what we BUY,
INSTALL what we FAB,
ESTIMATE what we INSTALL.”
Productivity Pitfalls
• Your organization
• Construction schedule
• BIM Expectations
• Speed of decisions
• Protocol
MECH
OPS NTX
OPS
STX
OPS
PM Team
FIELD Team
Engineering
BIM
P/P Fab
Shop
PM Team
FIELD Team
Engineering
BIM
P/P Fab
Shop
S/M Fab
Shop
Supply
Demand
One way One way
MECH
OPS NTX
OPS
STX
OPS
PM Team
FIELD Team
PM Team
FIELD Team
Engineering
Director
BIM
Director
Fabrication
Director
NTX Team NTX Team NTX Team
STX Team STX Team STX Team
SUPPORT OPERATIONS Supply
Demand
STANDARD DELIVERY FOR ALL TEAMS
Productivity Pitfalls
• No respect for schedule
‒ Would we get chillers on time if their delivery dates could change drastically 75% into production?
Productivity Pitfalls
• No respect for BIM expectations
‒ Builders’ BIM > Designers’ BIM
‒ Mechanical > Electrical
‒ GC > Subcontractors
• The BIM spec/execution plan must be reviewed prior to bid or qualified by Subcontractor if not provided
Productivity Pitfalls
• No decision-making early enough
‒ Selections > Specifications
‒ The only thing worse than being too late is being too early
• Value Engineering can impact BIM
• Changes in specific products can completely de-rail your 5D BIM efforts if you are not careful
Decision Making & Equipment
• 110,000 ft2 hospital, CAD hours for:
Chillers/Boilers 24
AHU’s 22
Terminal units/FCU’s 64
GRD’s 30
FD’s/FSD’s/SD’s 15
• The quantity of the items, not their size (or cost), matters most
Protocol – The RIGHT Way
BIM Dept.
(40 people)
Field PM
GC
Arch M/P Eng. Other
Trades
BIM
Manager
(1-2 people)
The Holy Grail – Accurate Metrics
“We MODEL what we SUBMIT,
BUY what we MODEL,
FAB what we BUY,
INSTALL what we FAB,
ESTIMATE what we INSTALL.”
BOWS “ties” it all together
BTime
Time Management
Fast Duct/Pipe
Estimating
Wennsoft Financials
Autodesk
BIM Workflows
Reporting Custom Metrics
Primavera
Scheduler
Exchange
Email / Security Share Point
Document File Server