Cost Analysis - 0401-533
Assignment 2: Cost Estimating, Uncertainty Analysis and Cost Planning
Course:
Question 1:
1) Perform quantity takeoff for the foundation structure provided in the
following figure and estimate the quantities of:
1. Excavation
2. Concrete including the concrete slab
3. Gravel
2) Design crew for excavation (labors, excavators, hauling trucks... etc.)
to excavate the above quantity and to haul it to a dumping location 15
km far from the construction site. Estimate productivity of crew and
cost of the excavation process
3) Evaluate uncertainty in the excavation productivity and estimate its
impact on schedule and budget.
Note: Include a list of all assumptions that you have made at the beginning
of the analysis including any missing data in the drawing 45°
3' 0"
1' 0" typical
32' 0"
Plan view
Width 32' 0"
रहे
Length 85' 0"
4" concrete slab
4" gravel
Typical section view
85' 0"
3' 0"
10' 0"
1'0"
3' 0" 3' 0"
45° Question 2:
Given the bridge abutment shown below, estimate its construction cost.
Data for this problem should be extracted from both: 1) UAE construction
data and 2) Published data such as the RS Means Unit Price Estimating
Methods (available in the University library).
1) Perform quantity takeoff of the formwork and concrete needed to
build the abutment
2) Design minimum reinforcing steel mesh for the abutment (provide the
reinforcing steel drawings) and do quantity takeoff of steel (Select
appropriate design loads and specifications of the material)
3) Use resource numeration to design crews (labour and power tools) to
build the formwork, to place concrete and to fix the reinforcing steel.
4) Specify productivity of the different crews
5) Estimate cost of the materials
6) Estimate cost per unit of work (i.e. cost per ton of fixing steel, cost per
m³ of placing concrete... etc.
7) Study the market trends in term of adding overhead, contingency and
profit and prepare a bid proposal to build the abutment package.
30'
50'
1'
30'
8′
