. Canadian Shipping and Marine Engineering January-December 1916. ions, w i t hthe splice plates at-tached. The erec-tion of these varioussections necessitatedvery careful and ac-curate handling ofthe cranes andhoisting the point wherethese various sec-tions are spliced to-gether, temporary platforms were constructed for theuse of the men when riveting upthe splices. This work is now practicallycompleted. To enable the reader to havesome conception of the massiveness ofthis structure, and the ingenuity de-manded in the assembling of these manydetails, we would refer to Fig. 2. Thi
. Canadian Shipping and Marine Engineering January-December 1916. ions, w i t hthe splice plates at-tached. The erec-tion of these varioussections necessitatedvery careful and ac-curate handling ofthe cranes andhoisting the point wherethese various sec-tions are spliced to-gether, temporary platforms were constructed for theuse of the men when riveting upthe splices. This work is now practicallycompleted. To enable the reader to havesome conception of the massiveness ofthis structure, and the ingenuity de-manded in the assembling of these manydetails, we would refer to Fig. 2. Thisshows the cap and top chord connectionwhich forms the upper end of the mainpost. This piece alone weighs nearly 72tons, and will be 310 feet above themain shoe, which rests on the concretepier. The work of assembling the structureproceeds on both sides two north shore main posts, weigh-ing approximately tons each, wereerected in thirty days. The main panelsadjoining the centre posts were also as-sembled in about thirty days; the second. IM;. 1. NORTH ANCHOR \l:M AS IT APPEARED ON NOVEMBER ..0, 1!)1411 panel on the north shore cantilever wascompleted in twenty-one days, with pro-portionately shorter periods on the suc-cessive panels. Each section of the cantilever arm iscompleted as the work progresses, therear boom of the traveller placing thebracing in position, while the side mem-bers of the forward panel are beingerected by the front boom. An interesting feature in the erectionof the lower chords is the use of a steelplatform called a flying bridge. Thesechords have a vertical splice midway be-tween panel supports, and it was neeessary to construct this platform so as totake in one complete panel. The flyingbridge is supported at the shore end bymeans of pins connected to the chords,and the outer end is held in position bymeans of links extending down from theUpper web, platform i smoved to a n e wposition by thetravelling crane. Due to
Size: 1962px × 1273px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectshipbuilding, bookyea
