Novel engineering solutions for incremental launching of bridges on low-friction materials: case studies of Nowra and Sydney Gateway bridges in Australia
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Bibliographic Details
| Author(s): |
Michal Ambor
(Freyssinet Australia, Sydney, AUSTRALIA)
Laura Farina (Freyssinet Australia, Sydney, AUSTRALIA) Mauro Sartori (Freyssinet Products Company, Milan, ITALY) Nikolaj Pedersen (Freyssinet Australia, Sydney, AUSTRALIA) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Construction’s Role for a World in Emergency, Manchester, United Kingdom, 10-14 April 2024 | ||||
| Published in: | IABSE Symposium Manchester 2024 | ||||
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| Page(s): | 1043-1050 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/manchester.2024.1043 | ||||
| Abstract: |
Bridge erection by sliding or incremental launching is well appreciated when crossing obstacles like heavy-traffic infrastructures that cannot be temporarily closed, difficult-to-access areas such as rivers or deep valleys, or even environmentally protected sites. Thanks to casting or assembling of structure on a dedicated area with good access conditions, it considerably improves workers’ safety. This article describes the development of novel launching equipment featuring sliding material of fluoropolymer type, vulcanized to engineered rubber components and placed on mechanical articulated supports. Various laboratory tests were performed to validate the solution and define friction factors, which were later confirmed during site operations. Case studies of application in launching of concrete multi-span double-T deck of Nowra Bridge and steel arch bridges of Sydney Getaway are presented. |
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| Keywords: |
incremental launching Bearings friction test skidding shoes heavy loads sliding material extension of lifespan
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