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 TM 55-1905-223-SDC
the necessary equipment to weld on heavy rails or angle irons about the ship to give additional support, but
some help can be obtained by shifting weights to reduce the strain, and by shoring. Beams and frames can
be patched or strengthened by bolting or welding doubling plates or bars along the webs. FIGURE 8-3 shows
how beams and frames may be ruptured or weakened and illustrates methods for strengthening these vital
structural parts of the ship.
Strengthening Beams and Frames.
Supports for heavy equipment may be pushed back into place with screw jacks and shoring and later
secured with stanchions made of heavy pipe welded in place. Chainfalls and heavy wires, possibly fitted with
turnbuckles, may be found useful in pulling plating and equipment back to their original positions. Supports
under dislocated machinery often must be carried down several decks because a single deck may not have
the strength to support all the weight. It may be necessary to make successive supports down to the bottom
frames.
In shoring heavy weights, the butt of the shore is to be placed on a solid frame, or the weight spread
between two or three frames by the use of sholes and cross-timbers.
Section VI.
REPAIRING PIPE LINES
8-12. METHODS. Before starting to repair any pipeline, it may be necessary to remove pressure
from the line and provide an auxiliary service.
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