Chapter 6
I Construction During The Settlement Years
II The Use Of Timber As A Structural Material
III Structural Steel
i The Entertainment Centres at Sydney and Brisbane
ii The Centrepoint Tower, Sydney
iii The Merivale Rail Bridge - Brisbane
IV Concrete Technology
V Housing
VI Industrialised Pre-cast Concrete Housing
VII Ports And Harbours
VIII Roads
IX Heavy Foundations
X Bridges
XI Sewerage
XII Water Engineering
XIII Railways
XIV Major Buildings
XV Airports
XVI Thermal Power Stations
XVII Materials Handling
XVIII Oil Industry
XIX The Snowy Mountains Scheme
XX The Sydney Opera House
XXI The Sydney Harbour Bridge
XXII Hamersley Iron
XXIII North West Shelf
Sources and References
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The Merivale Rail Bridge - Brisbane
The location of the bridge just upstream of another bridge and a 90° bend in the Brisbane River dictated a long span bridge to cater for the coral and coal barges of up to 5,000 tonnes weight using the river (Fig. 9). Maximum grading out of South Brisbane railway station cleared the river navigation clearance by only a small margin and this combination of long span and minimum construction depth dictated a shallow bridge deck supported from above. The designers looked at a wide range of possibilities and selected a shallow steel-framed deck structure suspended by inclined steel wire rope hangers from twin tied steel box arches. Lateral stiffness was enhanced by inclining the arches inwards to meet at their crown. The arch ribs and the horizontal ties joining the arch springings were fabricated by welding in segmental boxes using high ductility medium high strength steel and were field-jointed by high tensile steel bolts. The main span is 133 metres long and the deck is suspended from the arches by thirty-two 94.5 mm diameter steel rope bridge cables. The bridge was designed by consulting engineers, Cameron McNamara Pty. Ltd. and was fabricated and erected by Transfield (Qld.) Pty. Ltd. It was completed in 1979.
Organisations in Australian Science at Work - Cameron McNamara Pty Ltd; Johns & Waygood; Transfield (Qld) Pty Ltd
People in Bright Sparcs - Cameron, I. G.
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Australian Academy of Technological Sciences and Engineering |  |
© 1988 Print Edition page 325, Online Edition 2000
Published by Australian Science and Technology Heritage Centre, using the Web Academic Resource Publisher
http://www.austehc.unimelb.edu.au/tia/325.html