| 摘要 |
The present invention is directed to an apparatus for use in constructing a bridge comprised of a superstructure and a substructure that supports the superstructure and is comprised of foundations and piers. In one embodiment, the apparatus is comprised of a truss structure, a trolley that is supported by the truss structure and used to move materials used to build the bridge along at least a portion of the truss, a support structure for supporting the truss structure, and rotatable lead that can receive a substructure related element from the trolley and be used to rotate the element to a desired position to further the construction of the bridge. |
