| 摘要 |
A bridge, the deck of which comprises two superimposed frames (4,5) each serving as a roadway. These frames are connected by diagonal connecting girders (6) slanting both relative to the vertical and relative to the length of the bridge and joining the edges of the upper and lower frames, and auxiliary connecting girders (7) situated in vertical planes passing through the edges of the lower frame. The prestressing cables (17) of a diagonal girder (6) are anchored to the edge of the upper frame, pass transversely through the lower frame, and then through the diagonal girder which is symmetrical therewith relative to the longitudinal vertical plane of symmetry of the bridge, and are anchored on the opposite edge of the upper frame.
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