SEN Korea
SEN Korea
SEN Korea
INNOVATIVE
VALUE
ENGINEERING
SOLUTIONS
October 2016
1
Crystal.
Noryangjin Fisheries.Wholesale.Market (2009) Tower,
Kuwait City Gold.Tower. 42,.Cambodia.(2008)
(2008)
• SEN CORETECH mainly produces various patented products of SEN Engineering Group such
as PRC, PSRC, TSC V and CRC.
• Utilizing the advanced production facilities and strong contractor network, SEN CORETECH
guarantees timely delivery of prefabricated steel structure for any size and complexity.
3
Our efficient & flexible production line can handle
mega-scale fast track construction works
• Actual production : SK Hynix, 2014
1000
X axis = time ; unit=5day/grid
900 Y axis = production per 5 days ; unit=ton
Average.production.110ton/day
800
(8.6ea.for.Form.PSRC,.24ea.for.TSC)
700
600
500
400 TSC
300 PSRC
200
Thanksgiving
100 Holidays
0
June July August September October November
4
1. SEN ENGINEERING GROUP
Building
Owner
VE
General CM
Design firm firm
contractor Firm
Contractor
Engineering
Contractor
Electricity
Contractor
Architec-
Civil
ture
Structural
facilities
design
5
Competitive edge of SEN Engineering Group
VALUE CREATION
6
2. TSC
Concrete slab
Re-bar
Deck plate Shear connector
TSC
7
Certifications from the Korean Government
• “National New Technology”
- Ministry of Construction and Transportation (2004, NNT-418)
• “Performance Verification”
- Architectural Institute of Korea (AIK 06-3)
Others
1. DAELIM GRAND HOTEL (Jeju, Constructed by Daerim Industrial)
2. INHA TECHNICAL COLLEGE (Incheon, Constructed by Daerim Industrial)
3. DAESUNG D-CUBE CITY (Seoul, Constructed by Daesung E&C)
4. EXPRESS BUS TERMINAL COMPLEX (Daejeon, Constructed by KSBJ Housing)
5. LG CHEMICAL R&D CENTER (Daejeon, Constructed by LG Serveone
6. SAMSUNG MOBILE DISPLAY FACTORY (Cheonan, Constructed by Samsung Engineering)
8
2. TSC
Rotation (rad)
-0.08 -0.06 -0.04 -0.02 0 0.02 0.04 0.06 0.08 LV 18 LV 12 LV 08 LV 14
LV 20
10
앞면
LV
LV 03
LV
3,681
11
IC 2 IC 1
+
Mpr+Mpr
- 3750 LV 21
LV 05
LV 04
LV 16 LV 19 LV 13 LV 09 LV 15 LV 17
+ - 2,866
Mp+Mp
2500 LV 02
1250
Moment (KN-m)
-1250
+ -
-2500
Mp+Mp
-2,866
+ -
Mpr+Mpr
-3,681 -3750
10
2. TSC
2000
+
0.8 × (M pn + M !pn ) = 1, 431 (kN-m)
1000
-1000
+
0.8 × (M pn + M pn ) = 1, 431 (kN-m)
-2000
+
M pr + M pr = 2, 403 (kN-m)
-3000
-200 -150 -100 -50 0 50 100 150 200
Actuator Displacement (mm)
(*) Final recognition of fireproof construction is based on a separate non-load test result.
11
Application of TSC to transfer girder and beam
• Applied TSC instead of conventional RC transfer girder from the original design
• Reduced the beam depth by 900 inch
• Saved more than a month of construction period
TSC installation
Site located at Gangnam metropolitan area TSC connection at the top of column
12
2. TSC
Application to clean room equipment foundation
• Optimized details for clean room equipment basis Mega column
of semiconductor factory
TSC
• Excellent vibration performance
• Reduced construction period
6 days
Beam
(Selective and variable)
18 days
Curing before dismantling form takes 10 days
Reduce vibration and deflection (19%, 30% compared to RC)
RC TSC
Vibration valuation g 1
formula
f n = 0.18
D j + Dg
³ 3Hz , D µ
EI
à f n µ EI
Vibration
100% 119%
Com- performance
parison Deflection
100% 70%
(Rigid joint)
Comparison of vibration : Steel beam VS TSC beam (twin building) Ordinary status improve Walking status
Vibration.
Capa.
50% reduction of
Number of beams
ISO.Lab.criteria=0,5cm/s2 ISO.Lab.criteria=0,5cm/s2
10% reduction of
Beam Depth
STEEL.beam.......TSC.beam STEEL.beam.......TSC.beam
13
TSC IV section profile
TSC type I
A B A Standard Sectional Sectional Unit Center of Moment Radius of Modulus of
Nominal Dimension Area Weight Gravity of Inertia Gyration Section
size (cm) (cm2 ) (kg/m) (cm) Ix(cm4 ) Ix(cm) (cm3 )
(mm)
H B t r A W Cy Ix rx Zx_comp Zx_tens
t1
H
4.5 29.9 27.0 0.45 1.0 50.12 39.34 12.12 6110.17 11.04 344.7 504.1
300×270
6 30.0 27.0 0.60 1.0 66.47 52.18 12.25 8113.85 11.05 457.1 662.5
4.5
C
34.5 27.0 0.45 1.0 54.03 42.42 14.20 8661.91 12.66 427.8 609.9
t2
6 34.6 27.0 0.60 1.0 71.51 56.13 14.35 11490.38 12.68 567.5 800.5
25 7 34.7 27.0 0.70 1.0 83.15 65.27 14.44 13366.32 12.68 659.9 925.4
350×270
8 34.8 27.0 0.80 1.0 94.71 74.34 14.53 15230.92 12.68 751.5 1048.0
9 34.9 27.0 0.90 1.0 106.19 83.36 14.62 17084.11 12.68 842.6 1168.3
10 35.0 27.0 1.00 1.0 117.59 92.31 14.71 18925.83 12.69 933.0 1286.2
6 39.6 27.0 0.60 1.0 77.51 60.84 16.64 16025.65 14.38 698.0 963.1
TSC type II 7 39.7 27.0 0.70 1.0 90.15 70.77 16.73 18641.08 14.38 811.6 1114.1
400×270 8 39.8 27.0 0.80 1.0 102.71 80.62 16.83 21240.40 14.38 924.6 1262.3
90 B 90
9 39.9 27.0 0.90 1.0 115.19 90.42 16.92 23823.53 14.38 1036.7 1408.0
10 40.0 27.0 1.00 1.0 127.59 100.16 17.02 26390.36 14.38 1148.2 1551.0
r
6 44.6 27.0 0.60 1.0 83.51 65.55 18.95 21523.63 16.05 839.3 1135.5
7 44.7 27.0 0.70 1.0 97.15 76.26 19.05 25035.81 16.05 976.1 1314.1
t
450×270 8 44.8 27.0 0.80 1.0 110.71 86.90 19.15 28526.20 16.05 1112.1 1489.7
H
9 44.9 27.0 0.90 1.0 124.19 97.49 19.25 31994.68 16.05 1247.2 1662.3
60
10 45.0 27.0 1.00 1.0 137.59 108.01 19.35 35441.11 16.05 1381.5 1832.0
C
55
6 49.6 27.0 0.60 1.0 89.51 70.26 21.30 28060.55 17.71 991.4 1317.7
7 49.7 27.0 0.70 1.0 104.15 81.76 21.40 32639.39 17.70 1153.2 1525.5
500×270 8 49.8 27.0 0.80 1.0 118.71 93.18 21.50 37189.83 17.70 1314.0 1730.1
9 49.9 27.0 0.90 1.0 133.19 104.55 21.60 41711.70 17.70 1473.8 1931.4
10 50.0 27.0 1.00 1.0 147.59 115.86 21.70 46204.83 17.69 1632.6 2129.4
6 59.6 27.0 0.60 1.0 101.51 79.68 26.03 44554.71 20.95 1327.4 1711.5
7 59.7 27.0 0.70 1.0 118.15 92.75 26.14 51827.02 20.94 1544.3 1982.8
6x6 51.6 30 0.6 0.6 1.0 98.06 77.24 21.65 36306.88 19.24 1212.4 1676.8
6x9 51.9 30 0.6 0.9 1.0 108.56 85.49 19.84 40587.96 19.34 1266.2 2045.3
510×300 6x12 52.2 30 0.6 1.2 1.0 119.06 93.73 18.38 44244.30 19.28 1308.3 2407.0
9x9 51.9 30 0.9 0.9 1.0 146.93 115.87 21.85 54356.29 19.23 1808.9 2487.6
9x12 52.2 30 0.9 1.2 1.0 157.43 124.11 20.68 58845.80 19.33 1867.1 2845.9
6x6 61.6 30 0.6 0.6 1.0 110.06 86.66 26.37 56098.32 22.58 1592.1 2127.7
TSC Type V 6x9 61.9 30 0.6 0.9 1.0 120.56 94.91 24.36 62528.38 22.77 1665.5 2567.2
610×300 6x12 62.2 30 0.6 1.2 1.0 131.06 103.15 22.69 68089.69 22.79 1723.5 3000.5
90 B 90 9x9 61.9 30 0.9 0.9 1.0 164.93 130.00 26.56 84027.87 22.57 2377.9 3163.4
9x12 62.2 30 0.9 1.2 1.0 175.43 138.24 25.26 90728.40 22.74 2456.3 3591.3
r
6x6 71.6 30 0.6 0.6 1.0 122.06 96.08 31.13 81512.54 25.84 2014.4 2618.1
6x9 71.9 30 0.6 0.9 1.0 132.56 104.33 28.96 90577.82 26.14 2109.2 3128.1
t1 710×300 6x12 72.2 30 0.6 1.2 1.0 143.06 112.57 27.12 98505.66 26.24 2185.1 3632.2
9x9 71.9 30 0.9 0.9 1.0 182.93 144.13 31.33 122138.43 25.84 3010.6 3898.4
H
9x12 72.2 30 0.9 1.2 1.0 193.43 152.37 29.92 131540.18 26.08 3111.3 4396.1
6x6 81.6 30 0.6 0.6 1.0 134.06 105.50 35.94 113155.09 29.05 2478.5 3148.1
48
C
6x9 81.9 30 0.6 0.9 1.0 144.56 113.75 33.62 125350.93 29.45 2596.5 3728.2
t2
25°
810×300 6x12 82.2 30 0.6 1.2 1.0 155.06 121.99 31.64 136120.35 29.63 2692.0 4302.7
25 9x9 81.9 30 0.9 0.9 1.0 200.93 158.26 36.14 169596.51 29.05 3706.3 4692.7
9x12 82.2 30 0.9 1.2 1.0 211.43 166.50 34.64 182197.97 29.36 3830.8 5260.0
Details of PRC
Easy.to.penetrate.horizontal.re-bars PRC.column.+.TSC.girder.connection
16
3. PRC
Application of PRC columns to high-rise building
• Applied PRC columns to the belt truss of 63-stories building for BIFC in Busan.
• Ensured construction quality and shortened construction period by prefabricating a
special sheer wall system—an optimized system for high-rise buildings of reinforced
concrete.
• Aired on SBS-CNBC Creative Economy TV news show in August 2013.
Bring PRC columns to the site Lift and Erect PRC columns
17
Changes in column design of BIFC
18
4. PSRC
2nd-Gen. PRC optimized for mega and mini columns
• PSRC: Prefabricated SRC
• Prefabricate the column structure by
welding and/or bolting large-diameter
re-bars, angles and steel plates
(practically same as steel structure)
• Eliminate field fabrication process à
Higher quality and shorter construction
period
• Suitable for wide range of size : from
smaller columns to mega columns
(~700mm or 1,500mm~ width of cross
section)
Advantages of PSRC
Advantages
Product description
Advantages over RC Advantages over SRC
Share all the advantages of PRC • Ensure quality and reduce • Cut back more than 20% of
construction period by construction cost
prefabricating all members
• Self-standing during
construction
Distribute structural steel to the • Higher allowable load during • Excellent flexural strength
most outer part of column construction compare to PRC than SRC, where structural
• Ease in securing consistency in steel is centered at the core
thickness of covering concrete of column
during form installation à Possible to reduce the
volume and cross sectional
area of steel frame
Apply “ㄱ”-shape angle to the edge • Excellent self-standing and erection than PRC
of column section à Ease in securing erection of mini column of which width of
cross section of less than 700mm
• Easy bolt attachment to every joint
• Advantageous to apply modular design, where multiple number
of mini columns are placed in parallel
à Effective for forming mega column
Secure enough room at the center • Minimize the penetration of • No web interference of
of column section concrete hose by structural steel during
complementary re-bar belt concrete pouring
à Minimize side pressure
19
Excellent workability in concrete pouring
à enhance quality and reduce construction period
• Comparison with RC
Pouring hose is prone to be interfered No interference
Narrow
Space Ample
Space
RC PSRC
• Comparison with SRC
Structural steel webs interfere No large webs à No significant
concrete flow and generate excessive interference, therefore no excessive side
side pressure during pouring process. pressure during pouring process
Pouring spot
Pouring spot
SRC PSRC
21
Form PSRC Construction case
• PSRC integrated with prefabricated permanent form which is made of cold-formed
thin(1.6T) steel sheet
• Eliminated on-site formwork and lateral support
à Safer and cleaner site environment in reduced construction period
SK.HYNIX,.Icheon
Ø Form material : Anticorrosive-coated steel sheet
Ø Originally designed on the premise to pour concrete up to 5m/hour at 20℃ without column bands
Ø Applied supplementary column bands according to accelerated construction schedule (to pour up to 24m
/day)
22
4. PSRC
Form PSRC Construction case
Oil Refinery, Seosan
Ø Concrete mount for oil reactor
Ø Height 24m, Slab depth 2m
Ø Shortened construction period by 50% (compared with generic R/Cmethod)
23
SCI Journal Articles
• Cyclic Loading Test for Concrete-Filled U-Shaped Steel Beam-RC Column Connections
(Engineering Structures, December 2011)
• Cyclic Loading Test for Beam-Column Connection with Prefabricated Re-Bar Details
(ACI Structural Journal, May 2013)
• Flexural Test for Steel-Concrete Composite Members Using Prefabricated Steel Angles
(ASCE journal of Structural Engineering, May-June 2013)
• Cyclic Loading Test for Beam-Column Connections of Concrete-Filled U-Shaped Steel
Beams and Concrete-Encased Steel Angle Columns
(ASCE journal of Structural Engineering, February 2015)
Domestic Journals
• Earthquake Resistance of Prefabricated Reinforced Concrete Beam-Column Connection
(Architectural Institute of Korea, October 2011)
• Seismic Resistance of Concrete-filled U-shaped Steel Beam-to-RC Column Connections
(Korea Society of Steel Construction, February 2011)
• Seismic Performance Test of Concrete-filled U-shaped Steel Beam-to-Prefabricated
Column Connections (Architectural Institute of Korea, April 2012)
• Compression Test for Prefabricated Composite Columns Using High-Strength Steel
Angles (Korea Society of Steel Construction, August 2012)
• Flexural Test for Prefabricated Composite Columns Using Steel Angle and Reinforcing Bar
(Korea Society of Steel Construction, October 2012)
• Cyclic Loading Tests for Prefabricated Composite Columns Using Steel Angle and
Reinforcing Bar (Korea Society of Steel Construction, December2013)
• Construction Application of a Newly Developed Form-Latticed Prefabricated Steel
Reinforced Concrete Column (Korea Institute of Building Construction, October 2014)
Awards
25
Overview of CRC construction
• “O” Church, Gyeonggi-do
26
6. Omega Deck
27
7. SSG
Simple and effective shear strengthening for mat
foundation and flat slab
• Patent-pending construction method designed for shear strengthening effect by
placing SSG cube, welded square column-shape re-bar block unit of 30cm on a side,
around column and bearing beam during concrete placement on mat foundation and
flat plate
28
8. OCFT(Octagonal CFT) Column
Q-TYPE T-TYPE
(Quadrant axis type) (Twin Axis type)
OCFT Application
30
9. Renovation and Remodeling
Shinsegae Department Store – added 5th floor and basement floor (2007)
Outer Central
column column
Existing
foundation
Micro pile
for
temporary
support
New
foundation
31
Joongang Daily :Created large underground space for broadcasting studio
(2011)
• Secured a non-columned large space of 180 square meters (20m(w) x 30m(l) x 12m(h)) by
eliminating 2 columns (900t of axial force each) which had been bearing the weight of 9
floors(B1 ~ 8F).
32
9. Renovation and Remodeling
Jeil Pyeonghwa Market – vertical extension of extra 4 floors using truss (2014)
RF Truss
7F
6F
Virendeel truss
5F
Floor of 4F
existing roof
3F Reinforce lateral
2F force of existing
1F building
G.L
Create new foundation
Forming Virendeel frame for extended section Roof truss for top floor
33
Jeil Pyeonghwa Market - Construction order
35
Advantages of wire tensioning
• Enhance strength and restore deflection of the member of framework by giving up-lifting
force using steel wire or jacking up
• Wire tensioning is one of few restoration methods that “restore” the already deformed
member of framework to its original form without removing upper load.
• Superior result than attaching steel plate or carbon fiber
Restored RC beam
Restored steel beam of L department store (2011) of L department store (2008)
Restored RC beam and slab of head office of K bank: wire tensioning + steel
pipe bracket restoration method(2008)
36
10. PPP (Pressure Penetrating Pipe) Pile
Pressure Penetrating Pipe Pile (PPP)
• PPP Pile method allows press fitting of steel pipe pile using Hydraulic
our patented hydraulic jack. Jacking
유압잭
Foundation
기 초
Soil Ground
지 반
Slab
슬래브
Foundation
기 초
Soil Ground
지 반
Equipment Layout Hydraulic jack and pump Detail drawing of PPP
37
Application examples of PPP Pile
Purpose of Development
- Safe erection of structural steel
Missing
temporary
bolts!!
→ Collapse by defect → Collapse accident of
in the bolt connection concrete slab casting
Concept of SS Splice
As Is To Be
Modularized
Typical Steel Connection Steel Connection
To reduce the
construction time
To improve
workplace safety
To achieve
competitiveness
Gusset Plate Extended End Plate
+ +
High strength bolt High strength bolt
Friction type bolted joint Tension type bolted joint
39
Advantages
1) Integrated welding system à Prevent plate drop accident
2) No. of bolts 60% ↓ à Prevent bolt drop accident
As Is – Typical steel joint To Be – Modularized steel joint
Joint
type
No. of
Plates
8 EA 2 EA ( Field Installation 0 EA)
No. of
Bolts
72 EA (100%) 28 EA (39%)
Install.
Time
23 minutes 6 minutes
40
12. SSP Wall
CONCEPT of Development
SSP-WALL PSRC
SLEEVE
EMBEDDED PLATE
41
No need of Temporary scaffolding
As Is To Be
Conventional RC Wall SSP Wall
42
SEN STRUCTURAL ENGINEERS CO., LTD.
SENCORETECH INC.
SENVEX CO., LTD.
HOMEPAGE www.senkuzo.com
HQ T 82 2 2629 3119
F 82 2 2629 3110
A SENSE B/D 6, BEODEUNARU-RO 19-GIL, YOUNGDEUNGPO-GU
SEOUL, 150-040, KOREA
FACTORY1 T 82 43 532 0631
F 82 43 532 0633
A 391-10, JANGGWAN-RI, JINCHEON-EUP, JINCHEON-GUN
CHUNGCHEONGBUK-DO, 365-802, KOREA