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Michael R. Lockwood Construction Management National Museum of the Marine Corps – Quantico, VA - Page 46 - Systems and Methods Analysis Site Layout Planning Excavation Phase The site plan for the excavation phase of the project mainly consists of backfill and soil stockpiles. During the excavation phase, one main access road was built up to the building footprint. The future access road will be built and added to the site in later phases once the large excavation equipment has been removed from site. Also during excavation, the subcontractor trailers arrive on-site. There is a considerable amount of staging, storage and parking because the concrete subcontractor is beginning foundation work and delivering rebar and formwork.

Michael R. Lockwood Construction Management National ... · Michael R. Lockwood Construction Management National Museum of the Marine Corps Œ Quantico, VA - Page 48 - Superstructure

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Page 1: Michael R. Lockwood Construction Management National ... · Michael R. Lockwood Construction Management National Museum of the Marine Corps Œ Quantico, VA - Page 48 - Superstructure

Michael R. LockwoodConstruction ManagementNational Museum of the Marine Corps – Quantico, VA

- Page 46 -

Systems and Methods Analysis

Site Layout Planning

Excavation Phase

The site plan for the excavation phase of the project mainly consists of backfill

and soil stockpiles. During the excavation phase, one main access road was built up to

the building footprint. The future access road will be built and added to the site in later

phases once the large excavation equipment has been removed from site. Also during

excavation, the subcontractor trailers arrive on-site. There is a considerable amount of

staging, storage and parking because the concrete subcontractor is beginning foundation

work and delivering rebar and formwork.

Page 2: Michael R. Lockwood Construction Management National ... · Michael R. Lockwood Construction Management National Museum of the Marine Corps Œ Quantico, VA - Page 48 - Superstructure
Page 3: Michael R. Lockwood Construction Management National ... · Michael R. Lockwood Construction Management National Museum of the Marine Corps Œ Quantico, VA - Page 48 - Superstructure

Michael R. LockwoodConstruction ManagementNational Museum of the Marine Corps – Quantico, VA

- Page 48 -

Superstructure Phase

The site plan for the superstructure phase is far more complex than the excavation

phase. The complete access road will be completed during this phase. The roads provide

access to steel staging areas near the cranes on the site. There are two cranes required for

the erection of the skylight structural steel. The crane located on the east side of the

building will be used to erect the skylight mast while the other crane will be there to erect

the necessary ridge and rib beams until the mast is supported adequately. The two cranes

will then finish erecting the skylight steel.

Once the skylight is erected, the large crane on the East side of the building will

be removed from site. The remaining crane will erect the rest of the steel in the outer

ring of the building from the location shown on the site plan.

While the structure of the building is being erected, site work will begin on the

North parking lot area, therefore, the subcontractor trailers will be required to move to the

other side of the access road during this time. Due to the utilities on site, the trailers

could not be located in this position originally, and will be required to move again. The

location of the owner and general contractor’s trailers will not be required to move

throughout the duration of the project.

Page 4: Michael R. Lockwood Construction Management National ... · Michael R. Lockwood Construction Management National Museum of the Marine Corps Œ Quantico, VA - Page 48 - Superstructure
Page 5: Michael R. Lockwood Construction Management National ... · Michael R. Lockwood Construction Management National Museum of the Marine Corps Œ Quantico, VA - Page 48 - Superstructure

Michael R. LockwoodConstruction ManagementNational Museum of the Marine Corps – Quantico, VA

- Page 50 -

Finishes Phase

During the finishes phase of construction, the two cranes are no longer on site.

There is building access via the main entrance and the loading dock as shown. Once

again, the subcontractor trailers will be relocated back to the finished parking lot area

with a reduced number of trailers since a few of the large subcontractors are no longer on

site. While finishes are going on inside the building, the South side parking area will be

completed. The backfill stockpile has also been removed as it was used during the

backfill following the superstructure phase. The only stockpile remaining is the topsoil

which will be used during the exterior landscaping towards to the end of the project.

Page 6: Michael R. Lockwood Construction Management National ... · Michael R. Lockwood Construction Management National Museum of the Marine Corps Œ Quantico, VA - Page 48 - Superstructure
Page 7: Michael R. Lockwood Construction Management National ... · Michael R. Lockwood Construction Management National Museum of the Marine Corps Œ Quantico, VA - Page 48 - Superstructure

Michael R. LockwoodConstruction ManagementNational Museum of the Marine Corps – Quantico, VA

- Page 52 -

Analysis of Contractor’s Plans

The project is currently in the beginning of the structural phase (concrete only);

therefore, a comparison to the superstructure and finishes site plans can not be conducted

as the information has not become available. The excavation phase plan (as in place) is

similar with the location of stockpiles and the access road. The main difference is the

location of the subcontractor’s trailers. The general contractor located the subcontractor

trailers away from the access road and on top of the future utilities along the north fence.

In the revised version of the site plan, I have located the subcontractor trailers along the

access road and not interfering with the future utility lines through the area.

Another difference is the location and orientation of the owner and general

contractor’s trailers. The general contractor chose to orient the trailers side-by-side near

the main entrance with the parking adjacent to the access road and general contractor’s

trailer. In the revised plan, I chose to re-orient the trailers in an L-shape in order to

provide the general contractors trailer with a better view of both the site, and the main

entrance gate to monitor the traffic flow in and out of the site. This could not be done

effectively based on the original orientation of the trailers.

Page 8: Michael R. Lockwood Construction Management National ... · Michael R. Lockwood Construction Management National Museum of the Marine Corps Œ Quantico, VA - Page 48 - Superstructure

Michael R. LockwoodConstruction ManagementNational Museum of the Marine Corps – Quantico, VA

- Page 53 -

Temporary Utilities

Temporary Facilities for Superstructure Erection

Cast-in-Place Concrete

The use of cast-in-place concrete for the structure of a building requires the use of

many temporary facilities. The installation of the cast-in-place concrete structural

components begins in July 2004 and is complete in March 2005. Therefore, the cast-in-

place activities take place during both extremes of the climate for the geographic region.

The list below represents the temporary facilities required for the cast-in-place

concrete activities on this project:

- Temporary water supply - Truck wash-out area

- Temporary electric - Access road

- Heating (winter months) - Cooling (summer months)

- Formwork storage area - Rebar storage area

Concrete specifications require that concrete be allowed to cure within a certain

temperature range. During the summer months, concrete contractors must utilize cooling

methods to reduce the temperature of the concrete during curing and reduce the moisture

loss. In many instances, the use of some form of wrap such as wet burlap will reduce

both the temperature of the concrete as it cures and the access moisture loss of the

concrete. During the winter months, the concrete contractor will be required to provide

heating techniques to maintain the adequate temperature of the curing concrete. In most

cases, the use of propane heaters within an enclosed space around the concrete element

will accomplish this task.

Structural Steel

During the erection of the structural steel, certain temporary utilities/facilities will

be required. The following is a list of the temporary utilities/facilities required:

- Steel staging area - Crane swing radius

- Adequate soil for crane location

There are not many temporary utilities required for steel erection because the crane is

self-sufficient and does not require any power connections.

Page 9: Michael R. Lockwood Construction Management National ... · Michael R. Lockwood Construction Management National Museum of the Marine Corps Œ Quantico, VA - Page 48 - Superstructure

Michael R. LockwoodConstruction ManagementNational Museum of the Marine Corps – Quantico, VA

- Page 54 -

Specified Temporary Facilities

The contract specifications clearly list a number of temporary facilities required

by the general contractor. The following is a detailed list of the temporary facilities

required per specifications section 01500.

Temporary Facilities for Owner

• Double Wide Trailer- Hot & Cold Water- Sewer- Electric- Phone- Internet

• Office Trailer Furniture

• Office Equipment

Temporary Facilities for Contractor

• Triple Wide Trailer- Hot & Cold Water- Sewer- Electric- Phone- Internet

• Office Trailer Furniture

• Office Equipment

Temporary Utilities

• Electricity:

The owner will provide the installation and connection of the permanent

electricity once the site conditions allow for it. Once the permanent power

feed has been connected to a point on site, the contractor will be

responsible for the electric costs during the construction phase of the

project.

• Potable Water and Sanitary Sewer:

Page 10: Michael R. Lockwood Construction Management National ... · Michael R. Lockwood Construction Management National Museum of the Marine Corps Œ Quantico, VA - Page 48 - Superstructure

Michael R. LockwoodConstruction ManagementNational Museum of the Marine Corps – Quantico, VA

- Page 55 -

The owner will prove the potable water and sanitary sewer for the project

once the site is prepared to accept these services. At that time the

contractor may take use of these services and will bear the costs associated

with them throughout the duration of construction.

• Natural Gas:

The owner will provide the installation of the natural gas lines up to 5 feet

outside the building perimeter. The contractor will be required to

coordinate the installation effort and make the connection to the building.

Weather Protection

• Contractor is required to take necessary precautions to ensure roof openings

and other openings are monitored carefully. Preventative action is required to

protect building and materials against inclement weather.

Building and Site Storm Protection

• When gale force winds are forecasted, the contractor is required to take

necessary precautions to ensure safety of persons and protection of work and

nearby Government property. The following are some, but not all, of the

precautions:

� closing openings

� removing loose materials

� removing tools and equipment from exposed locations

� removing or securing temporary work or equipment

Temporary Sanitary Facilities

• The contractor is required to provide adequate temporary sanitary facilities to

accommodate all of the workers on the site at all times during construction per

code.

Page 11: Michael R. Lockwood Construction Management National ... · Michael R. Lockwood Construction Management National Museum of the Marine Corps Œ Quantico, VA - Page 48 - Superstructure

Michael R. LockwoodConstruction ManagementNational Museum of the Marine Corps – Quantico, VA

- Page 56 -

Detailed Systems Estimate

The following pages provide a detailed estimate of the structural system for the

National Museum of the Marine Corps. A list of assumptions and exclusions is provided

to better illustrate the content of the estimate. The concrete estimate includes all cast-in-

place walls, slab-on-grade, and slab-on metal deck along with the reinforcing. The steel

estimate includes steel beams, columns, and metal decking. The massive skylight system

was not included in this structural take-off.

Assumptions

• 5 % waste factor included in concrete take-off• 10 % included for steel connections

Exclusions

• Steel skylight system• Foundations• Overhead and Profit

Detailed Structural Estimate Summary Table

Cost Summary of Structural System Take-Off

Division Total Cost

1 General Conditions $0

2 Site Work $0

3 Concrete $1,464,973

4 Masonry $0

5 Metals $736,478

6 Woods and Plastics $0

7 Thermal and Moisture Protection $0

8 Doors and Windows $0

9 Finishes $0

10 Specialties $0

11 Equipment $0

12 Furnishings $0

13 Special Construction $0

14 Conveying Systems $0

15 Mechanical $0

16 Electrical $0

Total Structural Cost $2,201,451

Page 12: Michael R. Lockwood Construction Management National ... · Michael R. Lockwood Construction Management National Museum of the Marine Corps Œ Quantico, VA - Page 48 - Superstructure

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Page 13: Michael R. Lockwood Construction Management National ... · Michael R. Lockwood Construction Management National Museum of the Marine Corps Œ Quantico, VA - Page 48 - Superstructure

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00

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np

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2

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x11

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23

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17

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8.3

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92

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51

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10

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tru

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22

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04

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0.0

0

36

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00

05

31

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00

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00

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00

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nn

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(10

%)

66

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7,6

78

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88

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5$

63

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Str

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te

Page 14: Michael R. Lockwood Construction Management National ... · Michael R. Lockwood Construction Management National Museum of the Marine Corps Œ Quantico, VA - Page 48 - Superstructure

Michael R. LockwoodConstruction ManagementNational Museum of the Marine Corps – Quantico, VA

- Page 59 -

General Conditions Estimate

The table on the following page is a general conditions estimate for the National

Museum of the Marine Corps project. All of the information within the general

conditions estimate was developed solely by Michael Lockwood and cost information

was obtain from Costworks 2004. The general conditions estimate provides the

estimated costs for project staff, temporary utilities, and temporary facilities. The overall

general conditions cost estimate was $ 1,059,073.32 without overhead and profit. The

cost including the overhead and profit provided by Costworks 2004 was $1,572,423.80.

Note: The cost information provided in the general conditions estimate is solely

developed by Michael Lockwood with the use of Costworks 2004 data.

Page 15: Michael R. Lockwood Construction Management National ... · Michael R. Lockwood Construction Management National Museum of the Marine Corps Œ Quantico, VA - Page 48 - Superstructure

Co

stW

ork

s2

00

4-

Na

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lM

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eu

mo

fth

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ne

Co

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CS

IN

um

ber

Descri

pti

on

Un

itB

are

Mat.

Bare

Lab

or

Bare

Eq

uip

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ota

lT

ota

lIn

cl.

O&

P

1,2

00.0

001510

800

0350

Tem

pora

ryP

ow

er,

lightin

g,in

cl.

serv

ice

lam

ps,

wirin

gand

outle

ts,m

inC

SF

Flr

$2,4

84.0

0$9,3

00.0

0$0.0

0$11,7

84.0

0$16,6

80.0

0

5.0

001520

500

0550

Off

ice

Tra

iler,

furn

ished,re

ntper

month

,50'

x12',

exc

l.hookups

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$1,4

05.0

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0$0.0

0$1,4

05.0

0$1,5

50.0

0

24.0

001520

550

0120

Fie

ldO

ffic

eE

xpense

,off

ice

supplie

s,ave

rage

Month

$1,9

68.0

0$0.0

0$0.0

0$1,9

68.0

0$2,1

72.0

0

24.0

001520

550

0140

Fie

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lephone

bill

;avg

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/month

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cl.

long

dis

t.M

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$4,8

00.0

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0$0.0

0$4,8

00.0

0$5,2

80.0

0

24.0

001520

550

0160

Fie

ldO

ffic

eE

xpense

,field

off

ice

lights

&H

VA

CM

onth

$2,2

20.0

0$0.0

0$0.0

0$2,2

20.0

0$2,4

24.0

0

2.0

001540

790

0100

Surv

eyo

rS

takes,

hard

wood,2"

x2"

x18"

long

C$119.0

0$0.0

0$0.0

0$119.0

0$131.0

0

2,3

28.0

001550

700

0100

Tem

pora

ry,ro

ads,

gra

velf

ill,8"

gra

vel

depth

,exc

lsurf

acin

gS

.Y.

$14,0

84.4

0$4,1

90.4

0$791.5

2$19,0

66.3

2$22,9

30.8

0

30.0

001590

400

2200

Rentele

ctr

icgenera

tor

gas

engin

e1.5

KW

Day

$0.0

0$0.0

0$960.0

0$960.0

0$1,0

56.0

0

1,2

00.0

001740

500

0100

Cle

anin

gU

p,cle

anup

of

floor

are

a,finalb

yG

Catend

of

job

M.S

.F.

$3,1

20.0

0$40,8

00.0

0$3,2

16.0

0$47,1

36.0

0$70,8

00.0

0

1,2

00.0

001510

800

0600

Tem

pora

ryU

tiliti

es,

pow

er

for

job

dura

tion,

incl.

ele

vato

r,etc

,m

inC

SF

Flr

$0.0

0$0.0

0$0.0

0$51,6

00.0

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00.0

0

15,0

00.0

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800

0300

Tarp

aulin

s,re

info

rced

poly

eth

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hite

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ar

or

bla

ck,4

mils

thic

kS

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$2,1

00.0

0$0.0

0$0.0

0$2,1

00.0

0$2,2

50.0

0

76.0

001310

700

0120

Fie

ldengin

eer,

ave

rage

Week

$0.0

0$61,1

80.0

0$0.0

0$61,1

80.0

0$95,0

00.0

0

95.0

001310

700

0121

Off

ice

engin

eer,

ave

rage

Week

$0.0

0$76,4

75.0

0$0.0

0$76,4

75.0

0$118,7

50.0

0

90.0

001310

700

0160

Fie

ldP

ers

onnel,

genera

lpurp

ose

labore

r,ave

rage

Week

$0.0

0$77,4

00.0

0$0.0

0$77,4

00.0

0$121,5

00.0

0

90.0

001310

700

0160

Fie

ldP

ers

onnel,

safe

tycarp

ente

r,ave

rage

Week

$0.0

0$77,4

00.0

0$0.0

0$77,4

00.0

0$121,5

00.0

0

104.0

001310

700

0200

Fie

ldP

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onnel,

pro

jectm

anager,

ave

rage

Week

$0.0

0$137,8

00.0

0$0.0

0$137,8

00.0

0$213,2

00.0

0

104.0

001310

700

0260

Fie

ldP

ers

onnel,

superinte

ndent,

ave

rage

Week

$0.0

0$127,4

00.0

0$0.0

0$127,4

00.0

0$197,6

00.0

0

76.0

001310

700

0260

Fie

ldP

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onnel,

chie

ffield

engin

eer,

ave

rage

Week

$0.0

0$76,3

80.0

0$0.0

0$76,3

80.0

0$129,2

00.0

0

104.0

001310

700

0200

Fie

ldP

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onnel,

qc

manager,

ave

rage

Week

$0.0

0$117,0

00.0

0$0.0

0$117,0

00.0

0$171,6

00.0

0

90.0

001310

700

0200

Fie

ldP

ers

onnel,

ass

ista

ntqc

manager,

ave

rage

Week

$0.0

0$90,0

00.0

0$0.0

0$90,0

00.0

0$108,0

00.0

0

104.0

001310

700

0290

Fie

ldP

ers

onnel,

off

ice

manager,

ave

rage

Week

$0.0

0$74,8

80.0

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80.0

0$114,4

00.0

0

To

tals

$32,3

00.4

0$970,2

05.4

0$4,9

67.5

2$1,0

59,0

73.3

2$1,5

72,4

23.8

0

Pro

ject

Sta

ff