Transcript What is “Constructability”? The extent to which a design of a facility provides for ease of construction yet meets the overall requirements of that.

What is “Constructability”?
The extent to which a design of a
facility provides for ease of
construction yet meets the overall
requirements of that facility
Brehm’s Definition of
“Constructability”
“Doing for fifty cents what any
damn fool can do for a dollar”
Design + $$$ = Solution
CHALLENGE
Getting the designers and
constructors from diverse cultural
backgrounds and different goals to
work together effectively
ALL ABOUT ATTITUDE!
It is an attitude that must prevail through:



Conceptual planning
Design and procurement
Field operations
Construction Cost
Level of Influence on Cost
100%
Ability to Influence Costs
0%
Concept &
Feasibility
Design and
Engineering
Procurement and Construction
Startup Oper.
Ability to Influence Construction Costs over Time
Direct Benefits
Construction planning is made easier
Both design and construction costs can be
reduced
The construction schedule may be
shortened
Better quality can be required and
expected
Earlier owner occupation
Indirect Benefits
Building a collaborative team committed to
project goals
Cross discipline training
Transfer of expertise from other projects
Constructors better understand design
intent, and vice versa
Increased innovation in both design and
construction
Competitive advantage
General Constructability Checklist
Provide work areas when practical
Verify utility locations
Assure utility construction coordination
with other Agencies
Are pay items in the bid tabulation covered
by the specs?
Is all of the required work covered by pay
items?
General Constructability Checklist
Provide access to work areas
Consider access for routine maintenance
in design
Consider construction methods that “drive”
the design
Is weather a factor?
Are materials available?
General Constructability Checklist
Keep design simple and flexible
Standardize design elements
Do specifications allow work efficiency?
Are specifications clear, and conform with
current practices?
Check local Agency requirements for
environmental issues.
General Constructability Checklist
Which material is more economical?
Consider material type available during
staged construction.
Can access be constructed to remote
locations?
Minimize restricted areas that eliminate
normal equipment use
Minimize low production or hand work
areas
General Constructability Checklist
Do Special Provisions fit the job?
Strive for simplicity in design
Minimize architectural details
Consider working areas needs around
structures
Check for overhead utility conflicts
General Constructability Checklist
Consider access to structure site
Can traffic conflicts be reduced?
Are work zones large enough for
equipment access?
 Can emergency vehicles travel thru
without delays?