£r~ec/-/c>r7 by G/n /%>/<?. Fioure. 2. … girder may be rolled or skidded longtitudally to itsfinal position and then it is jacked over and down intoposition.(Fig.14).Without falsework the girder nay beweighted down at one end and the other end projectedover the span far enough tobe caught up by a small der-rick or gin pole and taken the…
Bridges · Theses
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