PjM Flashcards
Overall building efficiency ratio
Net assignable area (all the spaces needed by the client [office]) / Gross area (whole building, including circulation, mechanical, structural)
R/U Ratio
Retable area (includes areas used by all building tenants likes lobbies, janitorial, and mechanical rooms) / Usable area (area tenant will occupy privately)
Gross-up factor
same as R/U Ratio
Grossing factor
Ratio of gross/net, established during programming
Gross Floor Area (for programming)
measured to exterior face of building
Gross floor area (for code)
measured to inside face of interior wall
Rentable floor area
excludes stairs and elevators
Usable floor area
excludes all public/shared areas
Net floor area
excludes all public/shared areas as well as private circulation areas (eg corridors)
Zones of occupancy
determines occupant density (public, social, personal, intimate). used for HVAC usually
Accessory Occupancies
small spaces (less than 10% of total floor area) that serve the main occupancy and require classification as different occupancy groups but do not require fire separation from the main occupancy
AIA E204 2017
Supplement to core 101 contracts for projects with sustainability goals
Task dependency
the relationship of stop and start times for tasks
start-start
finish-start (natural dependency)
finish-finish
Prime contract
main contract with the owner for the work with the expectation that some of the work will be completed with the use of subcontractors. The contractor has a prime contract with the owner and he hires subs using subcontracts
Contractor Compensation Methods
Unit Cost
Cost plus Fixed Fee
Guaranteed Maximum Price (GMP)
Stipulated lump sum
Unit Cost: owner pays $ per housing unit
Cost plus Fixed Fee: const of work plus $ fixed profit for contractor. no limit to change orders
Guaranteed Maximum Price (GMP): like cost plus fixed fee, but if cost of work exceeds $2M, contractor has to complete the project and eat the extra cost
Stipulated lump sum: fixed budget
Supplemental instructions to bidders
Addenda (clarification or change to drawings) issued by architect during bidding process
Architect’s supplemental instructions
Like a change order but so minor it wont affect cost or schedule (changing a paint color before paint has been purchased)
Top Down vs Bottom Up project budgeting
Top Down: start with architect’s fee, subtract all expenses, use what’s left for design time
Bottom Up: add up required time and staffing for project to estimate required fee.
Information from the Owner
If contractor requires information from the owner, the architect must provided it within 7 days
Construction change directive
architect-issued directive to modify the work now while the contractor and owner negotiate who will pay. used so as to not delay the project
Consequential damages
indirect costs created by a botched job, eg. loss in rent revenue. AIA contracts include a waiver for consequential damages
SPECS
Descriptive specification
Prescriptive specification
Descriptive specification: detailed written information on requirements for material and product quality, including installation
Prescriptive specification: detailed means and methods of construction
Critical path diagrams
PERT charts
Gnatt charts
project management tools that represent project tasks and timelines to completion
PERT: flow chart
Gnatt: bar diagram
work vs project
project refers to the overall development, which might have different phases and scopes; work refers to a particular scope in the larger project