| 摘要 |
A method of repairing a box beam is disclosed in which a cracked or broken portion of a box beam may be repaired and the strength returned to normal by forming a pair of plates that fit snugly about at least one half of the box beam, the plates being welded to the box beam and to each other, each edge of the plates being either welded to its juxtaposed plate or to the box beam to provide full strength to the structure.
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