1. 2005009756 Kim, Nam-Won
2008010243 Kim, Dong-Eon
2008010447 Park, Jun-Yong
2008010663 Hwang, Gun-Hee
2010002706 Cho, Da-Ae

2. INTRO
Intro
Conceptual Apt. Construction Flow
Construction
Site layout planning
nD modeling
Earthwork
Structural work
G. L
Summary
Site
Layout
planning
Earthwork
Structural
work
+2month
-2month
Duration
0month
Detail
finish

3. INTRO
Intro
Construction
nD modeling
Activity
nD modeling
Site layout planning
Earthwork
Structural work
Summary
3

4. SITE LAYOUT PLANNING
Intro
Site layout planning
Site layout planning
Overview
Earthwork
Elec / Water / Equip
Structural work
G. L
Floor plan
Summary
Site
Layout
planning
WBS Code : GR-C7-

5. SITE LAYOUT PLANNING
Intro
Site overview
Site layout planning
Overview
Elec / Water / Equip
Floor plan
Earthwork
Structural work
Summary
5

6. SITE LAYOUT PLANNING
Intro
Site layout planning
Site overview
Location
Dogok-dong,
Gangnam-gu,, Seoul
Overview
Elec / Water / Equip
Floor plan
Period
2010. 11 ~ 2013. 2
Lot Area
16,650㎡ (370mx45m)
Building
Earthwork
Area
B2 ~ 17F (2building)
Structural work
Summary
3,354㎡
B2 ~ 18F (1building)
Level
B2 ~ 19F (1building)
B2 ~ 20F (2building)
B2 ~ 21F (2building)
Needed
Materials
Concrete, Steel
6

7. SITE LAYOUT PLANNING
Intro
Electricity
Item
Voltage
/Unit
EA
Total
voltage
T/C
200
4
800
L/C
22
8
176
Mechanic tool
30
5
150
Welding
machine
30
4
120
Structural work
Office
75
2
150
Summary
HVAC
50
2
100
Total
-
-
1586
Capacity(45%)
-
-
713
Selected
Transformer
-
-
750
Site layout planning
Overview
Section and Installation
Elec / Water / Equip
Floor plan
Earthwork
7

8. SITE LAYOUT PLANNING
Intro
Site layout planning
Water plan
Item
Content
Overview
Source
‘65tons per day’ is needed.
Constructor installed pump(70tons per day).
Pump
Elec / Water / Equip
170 LPM * 108m * 3.7 ㎾ * 2(1Set)
Floor plan
Earthwork
Structural work
Summary
8

9. SITE LAYOUT PLANNING
Intro
Site layout planning
Overview
Equipment
Item
EA
T/C
4
L/C
8
Elec / Water / Equip
Floor plan
Model
DTL
260·18
KTL 1000/
40
Earthwork
Maximum
Pulling
Maximum
Loading
R=50m
18 Ton
Planning
4 Ruffing T/C → Inside the field
4.2 Ton
-
-
Installing toward Dokok street
for soundproofing
Dokok street
Structural work
Summary
TC#1
TC#2
TC#3
Dokok Rexle Apt.
TC#4
9

10. SITE LAYOUT PLANNING
Intro
Site layout planning
Overview
Elec / Water / Equip
Floor plan
Earthwork
Floor plan
Problem
Solution
Narrow and long shape(370m x 45m)
Hard to enter the site for construction vehicle
Not enough area for storage
Using existing road for construction
Closing #1, 3, 5 gate for effective flow
Moving main office to basement
Using public area for office and storage
Dokok street
Structural work
Summary
Dokok Rexle Apt.
10

11. EARTHWORK
Intro
Conceptual Apt. Construction Flow
Site layout planning
Earthwork
Actual method
Structural work
G. L
Problem
Summary
Alternative methods
Site
Layout
planning
Earthwork
WBS Code : GR-C111

12. EARTHWORK
Intro
Site layout planning
Actual method
Ground anchor
Earthwork
Actual method
Problem
Alternative methods
Structural work
Summary
12

13. EARTHWORK
Intro
Site layout planning
Earthwork
Actual method
Problem
Alternative methods
Structural work
Summary
Ground anchor
Actual project
도곡렉슬 - 진달래 법정싸움 "공사장 도로균열 책임져라"
3.3㎡당 집값이 3000만원을 넘는 강남 부자 동네 주민들 싸움이 장기전으로 흐
르고 있다.
주인공은 도곡동 도곡렉슬 아파트와 도곡 진달래 아파트 주민들이다. 싸움의
발단은 도곡 진달래 아파트가 재건축 공사를 하면서부터다.
시공사로 선정된 삼성물산이 2010년 지하 터파기 공사 시 `어스앵커 공법`을
사용했는데 이 때문에 아파트 간 도로에 균열이 생겼다. 이 공법은 직각으로 말
뚝을 박고 이를 지지하기 위해 강철선을 넣는 공법인데 인근 주민들 동의를 받
아야 한다.
도곡렉슬 주민들이 "공사로 도곡렉슬 아파트 단지 도로에 균열이 발생했으니
진달래조합과 삼성물산이 도곡렉슬 용지에 설치한 238개 어스앵커를 철거하라
"는 소송을 냈고 법원이 작년 12월 이를 받아들여, 2달여간 공사가 중단되었다
가 재개된 상황이다.
도곡렉슬 주민들은 곧 어스앵커 피해로 인한 추가 손해배상 청구소송을 낼 계
획이라 소송전은 당분간 계속될 전망이다.
2012.05.28 / 매일경제신문 도재운 기자
13

14. EARTHWORK
Intro
What was the problem?
Site layout planning
Earthwork
σh = γ∙z∙Ka - 2c∙tan(45°-Ф/2)
Actual method
Problem
Road
Alternative methods
Structural work
Summary
Soil
14

15. EARTHWORK
Intro
Alternative methods
Site layout planning
Ground anchor
Strut
√Raker
Earthwork
Actual method
Problem
Alternative methods
Structural work
Summary
Soil
15

16. STRUCTURAL WORK
Intro
Conceptual Apt. Construction Flow
Site layout planning
Earthwork
Structural work
G. L
Project
Summary financing
Technical solution
Estimation
Site
Layout
planning
Earthwork
Structural
work
WBS Code : GR-C2-A
-303
16

17. STRUCTURAL WORK
Intro
60days
Site layout planning
Earthwork
Duration of structural work
Profit
Structural work
Project financing
Profit = Total cost x Interest rate x 60/365
Technical solution
Estimation
Opportunity cost = Profit + Penalty + α
Summary
Opportunity cost > Cost of alternative method
17

18. STRUCTURAL WORK
Intro
Technical solution
Site layout planning
Earthwork
7days
Structural work
1. Form
Project financing
2. Steel
Technical solution
Estimation
3. Concrete
Summary
4days
18

19. STRUCTURAL WORK
Intro
Site layout planning
Earthwork
Structural work
Case
<Evaluation of RC work, 최길홍, 한양대 산업경영디자인대학원>
Nation
USA(New York)
USA(Chicago)
Structure system
Canada(Toronto)
Flat Plate
2days
Flat Plate
ACS Form(Core)
Table Form(Slab)
Early-strength concrete
VH seperated pouring
4days
Wall structure
Gang form(Wall)
Table form(Slab)
Early-strength concrete
VH separated pouring
3days
Ramen structure
Half PC(column, beam)
Deck Form(slab)
High- strength concrete
VH separated pouring
6days
ACS Form(core)
Deck Form/Table form(slab)
High- strength concrete
VH separated pouring
4days
Estimation
Summary
Japan
Duration
(1 floor)
Wood form
High- strength concrete
Pre-Shoring
Project financing
Technical solution
Main issue
Korea(Complex)
Flat Plate
Korea(Apartment)
Wall structure
Wood form, Al form(slab)
Euro form, Al form(wall)
Gang form(outer wall)
6~8days
19

20. STRUCTURAL WORK
Intro
Site layout planning
Earthwork
Table form
Duration
Cost
4days
4days
₩200,000
₩200,000
Structural work
Project financing
Problem
Technical solution
Estimation
Summary
Alternative method → Al form
20

21. STRUCTURAL WORK
Intro
Performed steel arrangement
Site layout planning
Earthwork
Structural work
Project financing
Technical solution
Estimation
Summary
-2days
21
From KCI(Korea concrete institute)

22. STRUCTURAL WORK
Intro
Early-strength concrete
Site layout planning
Earthwork
Structural work
25-24-21
-1days
Project financing
Technical solution
Estimation
Summary
22
From Australia cement company

23. STRUCTURAL WORK
Intro
MS project
Site layout planning
Earthwork
4 Days
Structural work
Project financing
Technical solution
7 Days
Estimation
Summary
23

24. STRUCTURAL WORK
Intro
Estimation(ODBC)
Site layout planning
Earthwork
Structural work
Project financing
Technical solution
Estimation
Steel Concrete
Form
Summary
24

25. STRUCTURAL WORK
Intro
Site layout planning
QTO
Material
Building part
Unit
Quantity
Cost
Earthwork
Steel
HD-13
Wall
ton
9.9t
₩10,791,000
Structural work
Steel
HD-16
Slab
ton
4.2t
₩4,557,000
Concrete
25-24-21
Wall, Slab
㎥
237㎥
₩18,232,840
Outline
work
Wall
㎡
1033㎡
₩413,200
AL Form
Slab
㎡
353㎡
₩12,530,500
Gang Form
Slab
㎡
1033㎡
₩36,671,500
T/C
-
EA
4EA
₩72,900,000
Total
-
-
-
₩156,096,040
Project financing
Technical solution
Estimation
Summary
25

26. STRUCTURAL WORK
Intro
Site layout planning
Input process
Cost of T/C
Earthwork
Structural work
Project financing
Technical solution
Estimation
Cost of form
Summary
Cost of concrete
Cost of steel
26

27. STRUCTURAL WORK
Intro
Cost(4days)
BCWP
Site layout planning
Earthwork
Structural work
Project financing
Technical solution
Estimation
Summary
27

28. STRUCTURAL WORK
Intro
Site layout planning
S-curve of 4-days
7
Earthwork
Structural work
Project financing
Technical solution
Estimation
Summary
28

29. STRUCTURAL WORK
Intro
Cost(4days)
ACWP
Site layout planning
Earthwork
Structural work
Project financing
Technical solution
Estimation
Summary
1.6billion won – 1.8billon won = -0.2billion won
29

30. STRUCTURAL WORK
Intro
S-curve of 4-days
Site layout planning
Earthwork
Structural work
Project financing
Technical solution
Estimation
Reduced duration
Summary
30

31. STRUCTURAL WORK
Intro
Financial check
Site layout planning
Earthwork
Reduced duration
Penalty, Legal fee
Structural work
Project financing
Technical solution
Estimation
1.068billion
0.97billion
Summary
Rate of bank
1 Year
Over cost of new method
The penalty of reduced duration
(from bank’s aspect)
31

32. STRUCTURAL WORK
Intro
Detail finish
Site layout planning
Earthwork
Structural work
Project financing
G. L
Technical solution
Estimation
Summary
Site
Layout
planning
Earthwork
Structural
work
WBS Code : GR-C2-A-O-319
Detail
finish

33. SUMMARY
Intro
• EV Report
Site layout planning
2E+09
Earthwork
Structural work
Accumulated cost(4day)
1.8E+09
1.6E+09
Accumulated cost(7day)
1.4E+09
Summary
1.2E+09
EV Report
1E+09
Naviswork
80000000
60000000
40000000
20000000
0
2010
3Q
2010
4Q
2011
1Q
2011
2Q
2011
3Q
2011
4Q
2012
1Q
2012
2Q
2012
3Q
2012
4Q
2013
1Q
2013
2Q
33

34. SUMMARY
Intro
Time Cost
Site layout planning
MS project
Earthwork
QTO
Structural work
Summary
Revit
EV Report
Time
&
Cost
Naviswork
Time
3D model
Cost
Naviswork
34

35. Thank you!
35