Read CEE53110.PDF text version

CEE531-HW#10

Fall 2002

Unit Price Problem

A pavement replacement project has the pay items and engineer' estimate of quantities s shown in Table 1. The contractor' costs for his cost items are given in Table 2. A s network for the work is shown below. 1. Calculate the unit prices of the pay items for the construction contract. Assume that the cost items, which are not pay items, will have their cost allocated to the pay items with which they are associated. Overhead and profit, however, will be allocated evenly over all dollars of direct cost. 2. Determine the effect on gross income, particularly on fixed cost recovery, if the new pavement width increases by 10%. This affects base, topping and duration (no changes in unit prices during construction, after contract is signed) Table 1: Pay Items Detour Remove Pavement Install Base Barricades Topping Signs Lights Culverts Landscape Quantity 1 24,000 8,000 5,000 36,000 1 1 3 150,000 Unit LS SY CY LF SY LS LS EA SY

Electric Wiring

Install Lights

Detour In

Remove Pavement

Install Base

Place Topping

Detour Out

Landscape

End

Install Culverts

Barricades

Signs Deliver Concrete Plant

*Schedule signs & barricades as late as possible (LSD, LFD)

CEE531-HW#10 Table 2:

Unit Cost = $/Unit Equip. Labor $24,000 $16,000 $60,000

Fall 2002

Cost Item Detour Concrete plant (for topping) Culverts Break pavement Remove pavement Install base Concrete topping Install wiring Install lights Install signs Install barricades Landscape Quality control (1/2 for base and 1/2 for topping) Variable overhead ($/day) Fixed overhead Profit markup

Quantity 1 1 3 24,000 3,300 12,000 8,000 14,000 30 40 5,000 150,000 1

Unit EA EA EA SY CY CY CY LF EA EA LF SY EA

Material $14,000

Sub

$40,000 $4.20 $5.60 $15 $25 $3.60 $4.50 $13 $34 $5.00 $3,600 $2,400 $10 $0.60 $0.90 $15 $0.50 $40,000 $120 $250 $280

Duration (work days) 15 Install 10 Remove 20 Delivery 10 Each 50 30 30 30 20 20 30 40

$14 $60

$250,000 $150,000

Schedule signs and barricades as late as possible (at LSD and LFD).

Information

CEE53110.PDF

2 pages

Find more like this

Report File (DMCA)

Our content is added by our users. We aim to remove reported files within 1 working day. Please use this link to notify us:

Report this file as copyright or inappropriate

743900


You might also be interested in

BETA
CEE53110.PDF