bridges in korea
TRANSCRIPT
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Bridges in Korea
- Long Span Bridges-
Heungbae “Harry” Gil
Korea Expressway Corporation
Email : [email protected]
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Contents
Road Networks in KOREA
Korea Expressway Corporation
Constructed Long Span Bridges
Under-construction Long Span Bridges
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Road Networks & KEC
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Korean Peninsula
Complicated Coastlines
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216
258
109
1979 463
62
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62 3,174 No. of Islands
Lands of Islands
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104,702km
99,620km²
49 million
17 million
KOREA Overview
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※ MLTM : Ministry of Land, Transport & Maritime Affairs
Road Network in KOREA
Name of Route Authority Length (km)
Expressway KEC(3,632km) / Others(281km) 3,913
National Highway MLTM 13,905
Special • Metropolitan
City Road
Special Metropolitan
City Government 18,517
Provincial Road Provincial Government 18,193
City • County Road City / County Government 50,174
Total Length of Road Network 104,702
(as of 2011)
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Road Bridges
Routes Numbers Length (km)
Expressway 8,140 1,069
National Highway 6,610 662
Special • Metropolitan
City Road 1,045 287
Provincial Road 4,614 296
City • County Road 7,692 407
Total 2,721
(as of 2011)
28,152
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Road Bridges
Length All Roads Expressway
100M ~ 500M 6,138 2,428
500M ~ 1,000M 566 300
≥ 1,000M 160 68
Total 8,140
(as of 2011)
28,152
≤ 100M 21,288 5,344
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Research &
Development
Installation &
Management of
Subsidiary Facilities
Construction,
Maintenance & Operation of Expressway
Development of Areas
Adjacent to
Expressways
Established in 1969
Korea Expressway Corporation
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3,913 km Present
General Information – 7 x 9 Master Plan
6,160 km
7 corridors north and south
9 corridors east and west
Within 30-minutes access to
expressways nationwide
Increase alternative routes
2020
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Long Span Bridges before 2000s
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Historical Bridges
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Bridges in 1970 ~ 1980
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Namhae Bridge (1973)
Suspension Bridge
Total Length: 606M Main span: 404M
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Jindo Bridge (1984)
Cable Stayed Bridge
Total Length: 484M
Main Span: 344M
Steel Box Girder
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Dolsan Bridge (1984)
Cable Stayed Bridge
Total Span Length: 450M
Main Span: 279.5M
Steel Box Girder
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Bridges in 1990s
Large number of sea-crossing bridges for the development of islands
Securing of self-reliant technology for BCM and steel box bridges
Design focused essentially on functionality and economy
Narodo bridge (1994) Onnam Bridge (1996) Changseon bridge (1995)
Yaksan bridge (1999) Jodo Br. (1997) Tongyoung bridge (1998)
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Long Span Bridges after 2000s
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Long Span Bridges after 2000s
Strong demands for road infrastructure
Early 2000s
Conservatism in designs & constructions
Corporation with foreign companies & engineers
Beginning of golden era for long span bridges in Korea
Initiation of National Highway 77 construction project
Late 2000s
EPC turnkey construction contracts
Partial cooperation & dependence with foreign companies
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Seohae Bridge (2000)
First composite cable-stayed bridge in Korea
Span length: 990M (60+200+470+200+60)
Girder : Stiffened steel girder with precast slab
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Foundation Concrete Pylons
Key Sag Stay Cable Works
Girder Erection
Seohae Bridge (2000)
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Self-anchored suspension bridge with three-
dimensional main cable profile
Total length: 550M(125+300+125)
Road-rail bridge, Double-deck
Yongjong Bridge (2000)
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Cable work on temp. bents
Yongjong Bridge (2000)
AS equipments
AS on the main span 3D cable arrangements
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Earth-anchored suspension bridge
Total length: 900M (200+500+200)
Girder type: Stiffened steel truss girders, double-deck
Gwangan Bridge (2002)
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Gwangan Bridge (2002)
Landmark of Busan City
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2nd Jindo Bridge (2005)
Needs for the new bridge
Increased traffic demands
Lack of load bearing capacity
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2nd Jindo Bridge (2005)
Twin cable-stayed bridges
Length:492.5M (74.25+344+74.25)
Steel Box Girder
Wind dynamic stability during
construction: TMD
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National Highway 77 Project
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Sorok Bridge (2008)
Mono cable self-anchored suspension bridge
Total length: 470M(110+250+110)
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Incheon Bridge (2009)
Total length: 18.25km
Length of CSB: 80+260+800+260+80 M
Fast-track method
PPP Projects
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Stiffening Girder Erection
Steel box girder
HSB600 steel plates
(Y.S.: 450MPa, T.S.: 600MPa)
Incheon Bridge (2009)
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PWS(Parallel Wire Strand) cable
• Ultimate strength: 1770MPa
• Diameter of wire : 7 mm
Incheon Bridge (2009)
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Incheon Bridge (2009)
Construction: JUN. 2005 – OCT. 2009 (52 Months)
Longest cable-stayed bridge in Korea
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Geogum Bridge (2011)
Cable-stayed bridge in a semi-harp arrangement
Total length: 1,116M(120+198+ 480+198+120)
Bundles of 7 cables
Double-deck Warren truss
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Geogum Bridge (2011)
Nickname: Golden Sunlight Bridge
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Mokpo Bridge (2012)
Red-crowned Crane
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Steel box girder cable-stayed bridge
Total length:900M (200+500+200)
3 way stay cable arrangement
Center span: double plane
Side spans: single plane
Mokpo Bridge (2012)
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Three-span suspension bridge
Total length: 2,260M(357.5+1545+357.5)
4th longest bridge in the world
Yi Sun-sin Bridge (2012)
Admiral Yi Sun-sin
(Born in 1545)
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Highest concrete tower in the world for suspension bridges (272m)
Slip form construction
Construction period of pylon: 11 Months ( Great Belt Bridge: 254m, 30 Months)
Yi Sun-sin Bridge (2012)
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High-strength steel cable: 1,860MPa (Kiswire)
Cable erection: newly-developed AS system
Yi Sun-sin Bridge (2012)
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Twin-Box Girder
Floating Girder System
Yi Sun-sin Bridge (2012)
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Yi Sun-sin Bridge (2012)
Temporary Opening Date:
May 10, 2012
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Typical choice:
- Balanced Cantilever PSC Box Girder Bridges
Bridges for 100~200M ??
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New Alternative:
Extradosed* Bridges
* a cross between a girder bridge & a cable-stayed bridge
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2nd Pyung-Yeo Bridge (2007)
First Extradosed Bridge in Korea
Length : 550M (3@50+65+120+65)
Pier Height : 10.5M
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Length: 796.6M (85.35+5@125+85.25)
Pier Height: 8.85M
Geumga Bridge (2008)
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Approach to Inchon Bridge (2009)
Length: 310M
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Hag-Na-Rae Bridge (2012)
Length: 740M(100+3@180+100)
Pier Height : 26m
Longest span ED bridge in Korea
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Under-construction Long Span Bridges
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Total length : 400M
Main span length : 400M
Stiffening girder : Steel Edge Girder
World’s Longest Single Pylon Suspension Bridge
Dandeung Bridge (2013)
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Dandeung Bridge (2013)
Cable strength : 1,960MPa
AS (Air Spinning) erection method
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Sepoong Bridge (2014)
Bridge type : 6-span Cable-stayed Bridge
Total length : 725M (R=2000M)
Main span length : 220M
Stiffening girder : PSC Box Girder with Strut
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Ulsan Bridge (2015)
PPP projects
Single span(L=1,150M) suspension bridge
Cable strength: 1,960MPa
PPWS erection method
Tunnel type anchorage(AN2)
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Ulsan Bridge (2015)
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2nd Namhae Bridge (2016)
3 Dimensional Cable Suspension Bridge With Inclined Pylons
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Pylon at Land :
Prevention of Marine Pollution
Inclined Pylon : Minimization of
Tension on Main Cable
3D Arrangement of Main Cable : Securing Wind Resistance from Horizontal force of Hanger
Total length : 990.0M
Main span length : 890M
Pylon height : 148.5M
Inclined angle of pylon : 8.0°
Cable strength : 1,960MPa
Cable construction method
: Low Tension Air Spinning
2nd Namhae Bridge (2016)
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New Millennium Bridge 1 (2019)
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Total length: 1,004M(67+120+120+510+120+67)
PSC Box Girder + Steel Box Girder
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New Millennium Bridge 2 (2019)
Bridge type : Four-span Suspension Bridge
Total length : 1,750M
Main span length : 650M
Cable erection: PPWS (1,960MPa)
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Conclusion
Stiff competitions
Uniqueness
Bold Designs
Technology Developments
Super Long Bridge R&DB Projects
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Thanks to…..
DAELIM E&C
HYUNDAI E&C
GS E&C
SK E&C
PEC
YOOSHIN EC
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GS E&C
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Thank You Very Much!