Master of Science

Seokman Jeong

Civil Engineering – Construction Management

March 28, 2014

Program path Required courses

- CVE 5073 Construction Cost Engineering- ENM 5200 Project Engineering- CVE 5074 Leading Construction Operations- MTH 5201 Math Methods for Science &

Engineering- CVE 5020 Geotechnical Engineering Elective courses- ENS 5700 Introduction to Water

Resources- CVE 5035 Design Concept in Urban Hydrology- CVE 5025 Foundation Design- CVE 5060 Highway Design- SYS 5460 Systems Requirements

Presentation Outline

CVE 5073 Construction Cost Engineering- Cost Estimate and Proposal for King

James – Habitat for Humanity

ENM 5200 Project Engineering- Feasibility Analysis of the Solar Canopy

structure ENS 5700 Introduction to Water Resources

Construction Cost Engineering

COST ESTIMATING AND PROPOSAL FORKING JAMES – Habitat for Humanity

Prof. Ralph Locurcio, P.E.

Area Tabulation - Total 1,460 ft² (Living 1,057 Garage 328 Entry 75)

Detailed Bid Breakdown

CSI Format01 General Requirements03 Concrete06 Wood, Plastics & Composites07 Thermal & Moisture Protection08 Openings09 Finishes11 Equipment12 Furnishings22 Plumbing23 HVAC (Heating, Ventilating, & Air Conditioning)26 Electrical28 Electronic Safety & Security31 Earthwork

Components of House3 Bed, 2 Bath, 1 Living Room1 Kitchen, 1 Garage

HVAC takeoffHVAC

WFF

WFF

WFF

WFF

EXHAUSTFAN

EXHAUSTFAN

PC

ACU

WSH

AHU

DRY

W/H

HVAC Symbols & Quantity

19.5

Ea.

7 Ea.

L.F.8"x12" Supply Duct

3.5 L.F.8"x12" Return Duct

120"x25" Grille

8"x12" Register

3 ft6.9 ft 6.9 ft

6.3 ft

17 ft

11 ft

8.2 ft

19.5 ft

3.5 ft

Supply Duct

Return Duct20"x25" Grille

SupplyTrunkLine

8"x12" End Cap

6" diameter Duct 59.3 L.F.

Ea.2

7 Ea.6" - 90 degree Elbow

7 Ea.8"x12" to 6" register box

8"x12" End Cap Ea.2Return

AirLine

Ea.2Exhaust Fan

6" Wall Cap Ea.2

6" diameter Duct 7.0 L.F.

ExhaustFan

2.0 ft

5.0 ft

Cost

Total $4,648 - Matl. $3,246 - Equip. $0 - Labor $1,402

Air Handling Unit - $3,169 Supply Trunk Line - $1,182 Return Trunk Air - $158 Exhaust Fan - $139

HVAC takeoff

ELECTRICAL takeoffElectrical

AFCI

AFCI

AFCI

AFCI

AFCI

AFCI

AFCI

AFCI

AFCI

AFCI

AFCI

AFCI

AFCI

AFCI

AFCI AFCI AFCI

AFCI

AFCI

AFCI

AFCI

AFCI

AFCI

GFIGFI

GFI

GFI

GFI

GFI

GFI

GFI

GFI

GFI

WFF

WFF

WFF

WFF

EXHAUSTFAN

EXHAUSTFAN

PC

GFIWP

ELECTPANEL

GFIWP

DISCN3R

I DISCNEMA.

HB

HB

J

TEL

GFIUC

TEL

ACU

WSHAHU DRY

W/H

AFCI

3

3

Electrical Symbols & Quantity

3 THREE POLE SWITCH

SINGLE POLE SWITCH

220 OUTLET

DUPLEX OUTLET

SMOKE DETECTOR

TELEPHONE

EXHAUST FAN

ELECTRICAL PANEL

LIGHT FIXTURE

DISCONNECT

PULL CHAIN

WALL MOUNT FIXTURE

INDICATES WATERPROOF

WIRE FOR FAN

INDICATES GROUNDFAULT INTERRUPT

#12/2 ROMEX : 811 ft

CONDUIT JUNCTION BOX

TEL

PC

WFF

WP

GFI

13 Ea.

2 Ea.

25 Ea.

3 Ea.

2 Ea.

5 Ea.

1 Ea.

2 Ea.

2 Ea.

6 Ea.

3 Ea.

1 Ea.

4 Ea.

2 Ea.

10 Ea.

7 Ea.

945 L.F.

ELECTPANEL

ELECTPANEL

Room 2

Room 1

Room 3

LivingRoom Kitchen

RestRoom

(Treatment : 67 Ea x 2 ft = 134 ft)

6 ft 6 ft

8 ft

Swith

Outlet

Garage

#10/3 ROMEX : 98 ft110 L.F.(Treatment : 6 Ea x 2 ft = 12 ft)

#8/3 ROMEX : 37 ft41 L.F.(Treatment : 2 Ea x 2 ft = 4 ft)

Cost

Total $8,216 - Matl. $3,342 - Equip. $0 - Labor $4,874

Electric Service Sys. - $1,278 Wiring Device Sys. - $6,508 Fixtures - $430

ELECTRICAL takeoff

Itemized Cost Summary01 General Requirements $ 5,397.1303 Concrete $ 10,102.0506 Wood, Plastics & Composites $ 12,042.5307 Thermal & Moisture Protection $ 8,704.4208 Openings $ 6,525.7609 Finishes $ 8,795.9611 Equipment $ 1,656.0012 Furnishings $ 5,746.0522 Plumbing $ 9,733.0423 Heating, Ventilating, & Air Conditioning $ 4,648.3526 Electrical $ 8,216.1928 Electronic Safety & Security $ 433.0031 Earthwork $ 13,275.47Total $ 95,275.95

Bid Price worksheetSubtotal of Division Costs $ 95,275.95 - Material $ 46,412.87 - Equipment $ 7,047.27 - Labor $ 41,815.81Taxes $ 11,227.12

- Sales Tax (8% on Material Costs) $ 2,784.77 - Social Security (7% ), Unemployment (3%) $ 8,442.35 - Workers Compensation (9%), Liability (2%)

Overhead & Profit (20% on Matl. Equip. Labor) $ 22,365.65SUBTOTAL $128,868.71

Performance Bond & Permits $ 1,417.55Water/Sewer Connect Fee $ 4,100.00

PROPOSED BID COST $134,386.26

Cost Comparison

Proposed Cost of our team - Total $134,386 or $92.05 per square foot

RS MEANS “SQUARE FOOT” Cost - Total $185,244 or $126.88 per square foot

Actual Market Price - Total $170,031 or $116.46 per square foot - Note : Based on July, 2006 sale date data Data obtained from the Brevard County Property Appraiser

Questions ?

Project EngineeringProf. Aldo Fabregas

Course Description- Develop a project proposal and plan- Decompose a project into elements in

order to build a work breakdown structure (WBS)

- Estimate a project budget accommodating risk factors

- Develop resource allocation and resource leveling plans

- Execute and monitor project through earned value management techniques

Group Project- Feasibility Analysis of the Solar

Energy System

ProjectFeasibility Analysis of the Solar Energy

System

Performance Detail- Work Breakdown Structure (WBS)- Project Schedule (Gantt)- Risk Management- Feasibility Analysis- Conclusion

Goals- To assess feasibility of

installing a solar energy system on parking lots of FIT campus

- To provide analysis results for FIT

Project LocationRoberts Parking Lot (in front of Roberts H.) - Area : 28,000 ft² Length : 700 ft Width : 20 ft Lines : 2 eaLibrary Parking Lot (in front of Miller B/D) - Area : 36,000 ft² Length : 300 ft Width : 20 ft Lines : 6 eaHarris Parking Lot (in front of Harris C.) - Area : 18,000 ft² Length : 300 ft Width : 20 ft Lines : 3 ea

WBS and Project Schedule Gantt Chart

Risk Management

- Construction risk- Technology risk- Late materials delivery- Climate and Weather

risk- Sabotage, terrorism

and theft risk

- Environmental risk- Unrealistically low bid- Late-stage design

changes - Unexpected subsurface conditions- Settlement of adjacent

structures

- To identify potential problems before they occur, control the risks if the risk occurs, and monitor potential risks during all phases of the project life cycle

Goal

Expected Risks General Risks

Cost EstimateDescription unit amount note

Installation Area ft² 82,000 On FIT campus

Average System Installa-tion Costs

$/ft² 50 Panel output : 11.0 Watt/ft²

Average Solar Energy Sys-tem Costs

$/watt 4.55 American Solar Energy Society

Capital Cost of Installing $ 4,100,000

Government support fund 40% 1,640,000 www.solarcity.com

Final Cost of Installing $ 2,460,000 Outflow

Sun Hours per day hr/day 5.4 FL – Miami

Energy Output per hour watt/hr 902,000

Energy Output over 1 year

kWh 1,777,842 20 years : 35,556,840 kWh

Cost of Energy $/kWh 0.115

Commercial price in Flor-ida

$/kWh 0.0954 U.S. Energy Information Admin.

Providing cost (fixed price)

$/kWh 0.11

Energy price per year $ 195,563 Inflow

Feasibility Analysis (I)- Fixed Price per Energy : $0.11/kWh (1 year :

$0.11*1,777,842 = $195,563) Yea

rD.F Out-

flow($)Inflow(

$)

1 1.000

2,460,000

195,563

2 0.971

189,867

3 0.943

184,337

4 0.915

178,968

5 0.889

173,755

6 0.863

168,694

7 0.838

163,781

8 0.813

159,010

9 0.789

154,379

10 0.766

149,882

11 0.744

145,517

12 0.722

141,279

Year

D.F Out-flow($)

Inflow($)

13 0.710

137,164

14 0.681

133,169

15 0.661

129,290

16 0.642

125,524

17 0.623

121,868

18 0.605

118,319

19 0.587

114,872

20 0.570

111,527

To-tal

2,460,000

2,801,200

- Cost of Installing : $2,460,000 - Discount Rate : 0.03

NPV B/C

$341,200 1.14

Feasibility Analysis (II)- Fixed Price per Energy : $0.11/kWh (1 year :

$0.11*1,777,842 = $195,563) Yea

rD.F Present Solar

1 1.000

169,606 195,563

2 0.971

167,959 189,867

3 0.943

166,329 184,337

4 0.915

164,714 178,968

5 0.889

163,115 173,755

6 0.863

161,531 168,694

7 0.838

159,963 163,781

8 0.813

158,410 159,010

9 0.789

156,872 154,379

10 0.766

155,349 149,882

11 0.744

153,840 145,517

12 0.722

152,347 141,279

Year

D.F Present Solar

13 0.710

150,868 137,164

14 0.681

149,403 133,169

15 0.661

147,953 129,290

16 0.642

146,516 125,524

17 0.623

145,094 121,868

18 0.605

143,685 118,319

19 0.587

142,290 114,872

20 0.570

140,909 111,527

To-tal

3,096,753

2,801,200

- Commercial Rates in FL : $0.0954/kWh (1 yr : $0.0954*1,777,842 = $169,606)

NPV B/C

$295,553 1.11

Conclusion Solar energy system is profitable to FIT and

Provider

- To get more profit Reduce the installation cost Increase the period of use of solar

system This course?

Questions ?

Introduction to Water ResourcesProf. Thomas V. Belanger

Topic- Hydrologic Cycle- Water’s Properties- Precipitation- Evaporation- Infiltration- Surface Water- Ground Water

Hydrologic CycleWater evaporates

Water vapour is carried up into the air

Water vapour condenses to form clouds

Rain water falls to form rivers

Rivers flow into the sea

How much water in the hydrosphere?

Hydrogen Bonding- Water’s unique properties

comes from the strong attractive forces between oxygen and hydrogen molecule

Water’s Unique Properties

- Evaporation takes a lot of heat. This explains why sweating makes us feel cooler.

High Heat of Evaporation

- Known as the universal solvent because so many things dissolve well in it. Leads to pollution prob-lems as well.

Great Dissolving Power

Liquid over wide Temperature range- Without its high boiling point the oceans

would have evaporated long ago.

Water’s Unique Properties

- High specific heat means slow temperature changes. Helps moderate climate.

Changes Temperature slowly

- Strong forces of attraction between molecules al-lows water to rise up inside plants from roots to leaves.

Adhesion and Cohesion

- Most substances contract when frozen. Water expands and is less dense in its solid form. Hence, ice floats.

Expands when it Freezes

Methods for determining the mean annual precipitation

Precipitation

- Arithmetic mean, Thiessen polygon, Isohyetal

Thiessen polygon method Isohyetal method

Precipitation The resulting data

Process by which water on the ground surface enters the soil.

Infiltration

Ø Index method

Time

(hr)

Rain-fall(in./hr)

0-2 1.4

2-5 2.3

5-7 1.1

7-10 0.7

10-12

0.3

[Example]- Watershed : 560 acres- Runoff volume : 228.7 ac-ft

[Solution]

① Make a Hyetograph

② Estimate a Runoff depth 28.7 ac-ft/560 ac = 4.9 in.

③ Find the line level 2(1.4-Ø)+3(2.3-Ø)+2(1.1-Ø)+3(0.7-Ø)+2(0.3-Ø) = 4.9

④ Find Ø by Trial and Error Assume Ø=1.5 → 2.4 in. of runoff. < 4.9 in. Assume Ø=0.5 → 9.0 in. of runoff. > 4.9 in. Assume Ø=1.0 → 4.9 in. of runoff. = 4.9 in.

er

water that does not infiltrate the ground or return to the atmos-phere such as stream, river, lake, wetland or ocean.

Surface Water

SCS(Soil Conservation Service) Runoff method[Example]Q) Assuming average hydrologic soils group C, Calculate the runoff volume for a 100 acre suburban development with the following land use if rainfall is 4 in.

Land Use % of Land

¼-ac residential lots 40

1/8-ac condominiums 20

Paved streets with curbs 25

Open space, grass cover = 85% 15

CN

83

90

98

74

[Solution]

① Find Curve Number

② CNw = (0.4x83)+(0.2x90) +(0.25x98)+(0.15x74) = 86.8

③ SCS Runoff CN Method S=1000/CNw – 10 = 1.52 in. Q=(P-0.2S)²/(P+0.8S) = 2.62 in.

④ Runoff Volume = 100 acre x (2.62 in.) = 21.8 ac-ft

Surface Water

Groundwater in Florida Floridan Aquifer System

- One of the highest producing aquifers in the world.

- Found throughout FL and extends into the southern AL, GA, and SC

Sand and Gravel Aquifer- Primary source of water for western

panhandle of FL.

Biscayne Aquifer System- Dade, Broward, and Palm Beach

County.- Transported by pipeline to the Keys

Intermediate Aquifer System- Between SAS and FAS

Surficial Aquifer System- Any otherwise undefined aquifers that

are present at land surface.

Groundwater in Florida

Floridan Aquifer System- Comprised of a sequence of limestone and dolomite- Thickness is from about 250 feet in Georgia to about 3000 feet in south Florida.

Problem Using Groundwater

Saltwater Intrusion - As water is pumped out of ground, saltwa-

ter can move inland to “pollute” the well.

Conclusion Saltwater Intrusion - As water is pumped out of ground, saltwa-

ter can move inland to “pollute” the well.

Thank you

Questions?

My Future Plans

How I plan to use my MS Degree

Thank you to my instructors

Prof. Ralph Locurcio, PE Prof…. Prof….

Thank you!