Note: Reference is made to images and figures in part one and part two.
The railway bridge has been modelled in detail. In the prototype, each span was constructed using two steel plate web girders connected by four lateral bracing frames and stabilised by sway bracing. Each riveted girder consisted of a vertical web plate with a pair of flange angles along both top and bottom. The web plate was strengthened on both sides against buckling by several vertical stiffeners formed from angles. There was also a splice plate in the centre of the web since the span was too long for the web plate to be made from a single piece of steel plate. The railway bridge had additional flange plates attached to the flange angles. All components were riveted together. According to ‘Bridges Down Under’, p.195, packing plates usually were inserted under each web stiffener, so that the ends of the stiffeners did not have to be bent to sit
