Thorpe, William Henry · London, E. & F.N. Spon, limited; New York, Spon & Chamberlain · leaf 189
s to be adopted in removing old work andin erecting the new. Perhaps the simplest case to deal withis that where girders lie parallel to, and under the rails, witha timber floor upon which the permanent way is carried, assections of the road involving pairs of girders may be readilyremoved, and… … e^ii FiQS. 93 and 94. of joints in the existing floor, and the new work be schemedwith respect to the number and office of girders which maybe got in at any one breaking of the road. A sl^ht slewingof rails may sometimes be resorted to on occasion, where thishas the effect of releasing some part of…
Bridges
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