| The three spans(span
length: 125m) of the truss were fabricated and assembled in
the shop. Then, the span was separated and pulled into the loading
jetty. |
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The block
of the intermediate support was detached from the rest
of the span and transported to the site using a floating
crane. The rest of the spans were loaded on the barge
using a high tidal difference. The barge was towed to
the site for the erection. First stage of erection was
placing of the block of the intermediate support using
a floating crane. The rest of the span was placed on
the base structure that was installed on the top of
the footings and then lifted into the desired position
using 16 sets of a 600t strand jack. After that, two
blocks were connected. |
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대블럭 조립 및 선적 개념도
Concept of Assembly and Shipping of the Large Block
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대블럭 조립 Assembly of the Large Block
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선적장 JETTY
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선적용 STRAND JACK Strand Jack for Shipping
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BOGGIE SUPPORT FRAME
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BOGGIE SETTING
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①
대블럭 이동
BOGIE와 STRAND JACK을 이용하여 JETTY까지 이동중인 대블럭
②
대블럭 이동 완료
JETTY까지의 이동 거리는 265m, 소요 시간은 준비 과정을 포함하여 1일이 소요되었다.
③
교각부 소블럭 분리
JETTY까지 이동된 블럭은 교각부에 사전에 거치되는 단부 블럭을 분리한 후 BARGE에 선전된다.
④대블럭
선적 및 BARGE진출
JETTY규격에 맞추어 특수제작된 BARGE(100m×27m×7m)는 간조시에 JETTY로 진입하여 만조시에
대블럭을 부력를 이용하여 적재하게 되며 수위가 낮아지기 전에 신속히 JETTY 밖으로 진출하게 된다. |
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Strand Jack
설치
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Truss Lifting
및 연결
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Main Truss
정위치 조립및 Lifting System
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