| 摘要 |
<p>The device consists of a framework (1) consisting of a series of rigid extremely stable portals, crossbraced laterally and horizontally, intended to straddle the roadway (5) affected by the upkeeping and/or the repairing of the bridge deck and mounted on wheels (2) in order to permit its displacement along this roadway (5), and on its horizontal skeleton (3) is provided a service platform (4) consisting of self-supporting floor elements, serving as a workshop and intended for the intermediate storage of the upkeeping and repair gear. <IMAGE></p> |
