The seperated pair of main ribs section was made up by bridge panel and girder, because its construction is convenient, used widely in the prestressing force concrete cable-stay bridge of large span.
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美
- 回答:分离式双主肋截面是由桥面板与边主梁组合而成,由于其施工方便,在大跨度预应力混凝土斜拉桥中得到广泛应用。