Key Techniques in Construction eter-level Rigid Skeleton Arch Bridge
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Bibliographic Details
| Author(s): |
Yu Han
(Guangxi Road Bridge Engineering Group Corporation Nanning, China)
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Long Span Bridges, Istanbul, Turkey, 26-28 April 2023 | ||||
| Published in: | IABSE Symposium Istanbul 2023 | ||||
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| Page(s): | 968 | ||||
| Total no. of pages: | 1 | ||||
| Year: | 2023 | ||||
| DOI: | 10.2749/istanbul.2023.0968 | ||||
| Abstract: |
This talk introduces the key techniques in construction of 600-meter-level Rigid Skeleton Arch Bridge. Manufacturing and shipment technique of Q420 rigid skeleton, system of intelligent cable crane, construction method of "Pile cap + Ultra-long rock anchor" composite anchor system are presented. Based on the methodologies mentioned above, combined with the control theory for the one-time tensioning of the cables, high-precision manufacturing and installation of the rigid skeleton is realized. And finally, the stability and stress requirements of rigid skeleton have been ensured by adopting the C80 no-shrinkage manufactured sand concrete with vacuum aided grouting method, as well as the innovative preparation technology and construction method of outer-covered concrete. |
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| Keywords: |
grouting rigid skeleton arch bridge manufactured sand concrete vacuum aided
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