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General Information

Name in local language: 인천대교 (Incheon-daegyo)
Other name(s): Incheon Grand Bridge
Beginning of works: 2005
Completion: 26 October 2009
Status: in use

Project Type

Structure: Cable-stayed bridge with semi-fan system
approach viaduct:
Box girder bridge
Support conditions:
Secondary structure(s): Structurae Plus
Structurae Plus
Function / usage: Motorway bridge / freeway bridge
Material: main bridge:
Steel bridge
Structurae Plus
approach viaducts:
Prestressed concrete bridge
Structurae Plus
Equipment: Structurae Plus
Construction method: deck of approach viaduct:
Precast segmental construction

Awards and Distinctions

2011 Award of Merit  

Location

Location: ,
Coordinates: 37° 24' 50.76" N    126° 33' 59" E
Coordinates: 37° 24' 22.77" N    126° 36' 36.21" E
Coordinates: 37° 28' 17.41" N    126° 30' 41.42" E
Show coordinates on a map

Technical Information

Dimensions

total length 21.38 km
main bridge
main span 800 m
total length 1 480 m
span lengths 80 m - 260 m - 800 m - 260 m - 80 m
pylons height 238.5 m

Materials

piers reinforced concrete
pylons reinforced concrete
deck of main bridge steel
deck of approach viaduct precast prestressed concrete

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Excerpt from Wikipedia

The Incheon Bridge (Korean: 인천대교; RR: Incheon-daegyo) is a reinforced concrete bridge in South Korea. At its opening in October 2009, it became the second connection between Yeongjong Island and the mainland of Incheon. The Incheon Bridge is South Korea's longest spanning cable-stayed bridge. In comparison, it is the world's tenth longest cable-stayed bridge as of January 2019. The bridge provides direct access between Songdo and Incheon International Airport, reducing travel time between them by up to one hour.

The section of the bridge crossing the sea, whose concessionaire is Incheon Bridge Corporation, is funded by the private sector. Korea Expressway Corporation and the Korean Ministry of Land, Transport and Maritime Affairs (MLTM) managed the project.

Construction

The main design and build contractor was Samsung C&T Corporation JV (Daelim, Daewoo, GS, Hanjin, Hanwha, Kumho). Total costs were ₩2.45 trillion, including federally funded approach roads. The 21.38-kilometre-long (13.3 mi) highway project consisted of government-built sections at three ends and a 12.34 kilometres (7.7 mi) section in the middle built with private capital. The bridge section is 18,384 metres (60,315 ft) long. The bridge has a cable stayed section over the main sea route to Incheon port. This was the most difficult part to construct, with a main tower 230.5 metres (756.2 ft) high, vertical clearance of 74 m (243 ft), and five spans: a centre span of 800 m (2,625 ft) flanked on either side by spans of 260 m (853 ft) and 80 m (262 ft). Adjacent to the center section are approach spans consisting of a series of 150 m (492 ft) balanced cantilever spans. Lower-level viaducts consisting of 50 m (164 ft) spans connect to land at each end of the bridge.

Design

Because the bridge is situated in a known seismically-active region, a seismic design of the substructure was adopted.

At 12.3 km long, with a main cable stayed span of 800m, the new Incheon Bridge is one of the five longest of its type in the world. Its 33.4m wide steel/concrete composite deck carries six lanes of traffic 74 m above the main shipping route in and out of Incheon port and links Incheon International Airport on Yeongjong Island to the international business district of New Songdo City and the metropolitan districts of South Korea's capital, Seoul. The cable stayed section of the crossing is 1,480 m long, made up of five spans measuring 80 m, 260 m, 800 m, 260 m and 80 m respectively: height of the inverted Y main towers is 230.5 m. A 1.8 km approach span and 8.7 km viaduct complete the crossing, both constructed with precast prestressed concrete box girder decks. Foundations are drilled piles 3 m in diameter. In order to accommodate movement between the bridge decks, the Incheondaegyo was equipped with expansion joints weighing up to 50 tons per joint.

Text imported from Wikipedia article "Incheon Bridge" and modified on 23 July 2019 under the CC-BY-SA 3.0 license.

Participants

Wind analysis
Structural engineering
Checking engineering
Main contractor
Co-contractor
Prestressing bars
Expansion joints
Specialist consultants
Remote monitoring system

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  • About this
    data sheet
  • Structure-ID
    20015446
  • Published on:
    07/03/2005
  • Last updated on:
    05/02/2016