Canadian engineer . hord joints were also facedas a matter of good workmanship. The end gusset plateson the bottom chord were protected on their tops and atthe ends from the weather, by a cover plate bent to con-form to the profile of the gussets and bolted to connectionangles on the gussets with Ji in. machine bolts, so that thebent covers could be removed whenever it was decided toinspect or paint the shoe diaphragms. The end reactionof 1,134,000 lbs. is taken care of by a shoe of cast steel z^Ain. thick riveted to the underside of the bottom chord,dished on the underside to a concave speric
Canadian engineer . hord joints were also facedas a matter of good workmanship. The end gusset plateson the bottom chord were protected on their tops and atthe ends from the weather, by a cover plate bent to con-form to the profile of the gussets and bolted to connectionangles on the gussets with Ji in. machine bolts, so that thebent covers could be removed whenever it was decided toinspect or paint the shoe diaphragms. The end reactionof 1,134,000 lbs. is taken care of by a shoe of cast steel z^Ain. thick riveted to the underside of the bottom chord,dished on the underside to a concave sperical surface of3 feet radius to engage a lower convex casting 5 in. thickwhich in turn rests on three 2% in. plates riveted together,resting on a nest of eight 6 in. rollers, 4 ft. 3 in. roller nest rests on a 2 in. plate, 4 ft. it in. bv 5 in. The plate sits on the masonry with 5^ in. sheet leadbetween to take up inequalities in the bridge seat. On the 536 THE CANADIAN ENGINEER Volume 22. J 2 ^ ^. ^ k;. river piers there is an additional ^4 in. plate runningcontinuously under the bed plate of the two adjacentspans. Tne spans are anchored at each corner by twolU in. anchor bolts, 6 ft. 6 in. long, connecting tobrackets on either side of the bottom chord, and run-ning 2 feet into the masonry, set after the trusses arein place. It was desirable to have a fixed end next thetoe of the bascule on pier No. 4, so the west ends of allfour spans were made fixed and their east ends roller; Leaving the bascule span in the meantime, let usnote a few things in connection with the long viaductof the western approach. Cross sections AA and BBOn Plate No. i show typically the construction of thedifferent portions. Except where the viaduct crossesover the tracks of the Winnipeg Transfer Co. and theother spur track, the cross section is as shown at BB,and similar to the span over Tache Avenue—four deckgirders with g-inch cross beams on top cantileveringout supporting facia girders
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishertoron, bookyear1893
