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ri ben tong chuan di 2 gao jia qiao die xing fu ban xiang liang qiao
Author(s): 
Pages: 93
Year: Issue:  4
Journal: World Bridges

Keyword:  箱梁桥节段预制拼装法公路运输最大重量首都圈城市中心上部结构蝶形张拉预应力筋先张法;
Abstract: <正>日本首都圈中央联络高速公路(简称圈央道)是距城市中心40~60km、全长约300km的高标准环线。桶川第二高架桥(Okegawa Viaduct No.2,见图1)位于圈央道环线上,全长约3.2km,上部结构为多跨连续蝶形腹板箱梁桥,标准跨径45.0 m,最大跨径53.0m。考虑现场作业效率及周边环境,采用节段预制拼装法施工。为便于公路运输预制节段,单元节段最大重量为30t,采用挂车运输。
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