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.
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.
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。