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Superstructure/
Outline |
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The main feature
of the Bridge is the three-span continuous self-anchored
suspension bridge. The main design considerations for
the suspension bridge were functionality as highways and
railways and symbol of Korean raditional culture.
The shape of the cable and the stiffened girder was designed
to symbolize the eaves of the traditional Korean Kiwa
House. The 550 m long suspension bridge has the center
span of 300 m and the side spans of 125 m. |
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The main cables
of the suspension bridge takes the 3 dimensional shapes.
The stiffening girder of the suspension bridge is the
stiffening truss type to keep the uniformity with the
neighboring approach truss bridges. The upper deck of
the girder is the steel box which also act as the upper
cord of the truss.
Unlike the typical truss bridge, the lower chord as well
as the upper chord, the steel box, of the stiffening truss
are subjected to the compression because of force transferred
from the main cables. |
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■ Main Members
Now that the bridge is composed of road and
railways, members for the bridge were classified
by three types according to the load ratio;Road
member, Railway member, Combined member. The
towers and the lower deck are the road member,
the cross beam and the middle vertical member
are the railway member, and the rest of the
members are the combined member. Lower lateral
bracings are installed to resist wind load.
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현수교부재
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트러스부재
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보강형트러스 Stiffening Truss
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주탑
Main Tower
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접속트러스
Approach Truss
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강합성교
Steel Box Girder Bridge
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