Post on 05-Apr-2018
#AU2015
No Estimation without Quantification: Assemble your
quantities today
Kris LengiezaDirector of VDC
@gieza0527
Seth CheeverPreconstruction Manager
@sethdred
#AU2015
Many of us have been creating models for our projects for some time now, but have we really been getting the most out of them? By starting our modeling process earlier we can capitalize on our models for better quantities and an overall better project. Join us as we guide you through the process of extracting quality quantities out of your models and using that data for estimating, scheduling, and production tracking. We start by sharing how we create our Revit software models for the most effective quantities that will have the greatest effect on our final design. We will also show you how to capitalize on shared parameters to sort and group takeoffs as well as track production data, and push this information in and out of the model without ever opening Revit software. Quantities should live on throughout construction and into operations in order to help us gain better insights into our projects. Using Assemble to get the most out of your quantities will surely start a revolution among your team.
Class summary
#AU2015
At the end of this class, you will be able to:
Learn how to focus your modeling efforts on areas that will have the
biggest cost impact.
Learn how to create a Revit model for effective quantity takeoff
Learn how to capitalize on shared parameters to sort, group and
maximize on model elements to get the most out of your quantity takeoff
Learn how to analyze and capitalize on your model based quantities for
better scheduling and production tracking
Key learning objectives
#AU2015
Assembling the Playbook
#AU2015
Figure out who we need
Figure out what we need and how we need it
Go get or create the data
Put the data to use
Where do we begin?
#AU2015
Step 1 - Assemble the Team
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Step 2 - The team’s all here, now what?
Brainstorm on what data each team member needs to
determine which items to model.
#AU2015
What will be needed? THINK BIG!
Global metrics:
Gross square footage
Rentable and sellable square footage
Roof area
Air conditioned square footage
Units
Garage area
Parking spaces
#AU2015
What will be needed? think small
Now it’s time to sweat the small stuff.
#AU2015
What will be needed? We’re still thinking small…
Elemental metrics:
Structure:
Concrete - Foundations, slabs and beams, vertical, miscellaneous
Masonry – Load-bearing, non-load-bearing
Other:
Glazing – Curtainwall, storefront, interiors
Exterior railings – Glass, metal
Interiors
Drywall
Flooring
Doors
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Be sure that the definition of each of those metrics
mean the same thing to each team member.
Are we all speaking the same language?
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Don’t let the team leave just yet!
How does the data need to be broken down?
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Can you just separate that estimate by area?
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Breaking down the data
Use a sketch to illustrate the breakdowns.
12
3
45
2
2
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Step 3 – Getting the data
Following the outline of results of the brainstorming, the
quantities are then prepared in the order of priority in
the fashion that was finally determined.
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Getting the data – How we used to do it
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Getting the data – How we do it now
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Getting the data – How we do it now
Then – prioritize takeoffs; Now - prioritize modeling
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The data created in the model is used to analyze the
project, estimate the component, or evaluate the risk
associated with opportunities.
Step 4 – Review and apply the data
Stiles Direct
Purchase PackageMatrix of Shell Package Procurement Options
#AU2015
It all boils down to Blocking and Tackling
#AU2015
Start with the Elements that give you the most data
Massing
Model Creation
GSF
Exterior Skin
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Then move onto the items with the most risk
Items we might control
Model Creation
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Then move onto the items we see the most of
Repeating Elements
Model Creation
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Finally start to fill in the detail
The nitty gritty
Model Creation
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Publishing Models to Assemble
You are ready for your first publish to Assemble
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Creating Views in Assemble
Analyzing data by using view filters
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Creating Views in Assemble
Save views for future use
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Who else can use this information?
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Trick Plays
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Why use shared parameters?
Can anyone
open this
Revit File?
The architect
just updated his
file now I need
to start over
How do I keep
up with
changes?
What if we
don’t want to
build it that
way?
#AU2015
Why use shared parameters?
#AU2015
How to use shared parameters?
#AU2015
How to use shared parameters?
Creating a Shared Parameter file
#AU2015
How to use shared parameters?
Create Shared Parameters
• Example Shared Parameters
• Structural
• Structural Group
• Concrete Strength
• Quantification
• Taken Off
• Taken Off By
• Schedule
• Installed Date
• Activity ID
• WBS Groups
• Look Ahead Group
#AU2015
How to use shared parameters?
Add Shared Parameters to a Template Project
#AU2015
How to use shared parameters?
Transferring Parameters from Template into other
projects
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How to use shared parameters?
Using Shared Parameters in Assemble
#AU2015
How to use shared parameters?
Group By Shared Parameters
#AU2015
How to use shared parameters?
Filtering by Shared Parameters
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How to use shared parameters?
Quality Checking Model
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Lets hit the Field
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Transitioning to Operations
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Look Aheads
• Visual representation of
work upcoming and to
be completed
• Provides quantities for
upcoming work
• Allows team to easily
communicate about
work progress
Why Assemble Look Aheads are valuable
#AU2015
Look Aheads
• Use shared parameters to
tie model elements to
Activity IDs and/or WBS
• Create a custom view of
items that Start, Finish or
are behind schedule in
period
• Use Excel to write an if
statement to group items
into correct category
How do we do look aheads in Assemble
#AU2015
Production Tracking
Simple Production Tracking
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Production Tracking
• Use shared parameters
to tie model elements to
Activity IDs and WBS
• Spread Quantities over
duration of the schedule
• Use Excel graph actual
work in place vs Early
and Late start
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Model Comparison
• Effectively evaluate
design changes
• Verify subcontractor
change orders
• Visually review changes
to the project with team
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Conclusion
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Conclusion
By gathering the appropriate team and
coming up with a detailed plan we can
identify the most meaningful items to
quantify and how to organize them.
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Conclusion
By following our plan we can make
best use of our time by modeling the
elements that provide us with the best
information.
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Conclusion
Shared parameters are the custom
fields by which we can sort, track and
leverage quantity data from the model
for many different applications.
#AU2015
Conclusion
We can put the quantities created
during the preconstruction phase to
work for us by applying scheduling and
production tracking methods within
Assemble.
#AU2015
Questions
Kris LengiezaKris.Lengieza@stiles.com
@gieza0527
Seth CheeverSeth.Cheever@stiles.com
@sethdred
#AU2015
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to enjoy again and again.
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Kris LengiezaKris.Lengieza@stiles.com
@gieza0527
Questions
Seth CheeverSeth.Cheever@stiles.com
@sethdred
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