Abstract: Authorities in various regions of Australia have large numbers of timber bridges, many built between the First World War and the Depression, which are in a poor state of repair, requiring ongoing extensive and costly repairs and maintenance. In many instances full replacement of these structures is not an economically viable option, resulting in the replacement of the timber superstructure and/or deck with a durable precast concrete structure. This paper outlines the ongoing design investigations being undertaken into modular bridge deck systems, in order to ensure full compliance with Austroads and the various regional road authority requirements, for the provision of long life precast concrete decks for timber bridges on either existing sub-structures or for new bridge construction. The resultant structures have a much increased service life and in many instances, a substantial increase in the vehicle load carrying capacity. (a) For the covering entry of this conference, please see ITRD E204289.
Publication Year: 2000
Publication Date: 2000-01-01
Language: en
Type: article
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