seokman jeong march 28, 2014. required courses -cve 5073 construction cost engineering -enm 5200...
TRANSCRIPT
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!