Research on Key Technology of Large Tonnage Steel Beam Fast Sliding Positioning
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Bibliographic Details
| Author(s): |
Wenlong Zhang
(CCCC Shec Fourth Engineering Co., Ltd)
Liu Chao (Shanghai Tongji Detection Technology Co) Xiang Zhang (Shaoxing College of Arts and Sciences) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022 | ||||
| Published in: | IABSE Congress Nanjing 2022 | ||||
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| Page(s): | 1015-1022 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/nanjing.2022.1015 | ||||
| Abstract: |
A certain bridge adopts the green design of "one span across the river", and the installation of 21 pieces of steel box girder on the south span is limited by geographical conditions, tower limb width and construction period. Innovatively developed a dedicated skid scooter, the steel box girder successfully crosses the orbit change position with the help of the windlass，move laterally to the tower area，replace the longitudinal skid scooter，move to the design bridge. In the steel beam positioning link, firstly, set bearing pre-offsetting on pier top support to circumvent the influence of steel box girder welding, shrinkage creep deformation and closure temperature difference on the displacement of beam length. After the bridge is completed, the feasibility and reliability of the research method are verified by elevation measurement, static load test and implementation process. |
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| Keywords: |
static load test one span across the river dedicated skid scooter orbit change pre-offsetting
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| Copyright: | © 2022 International Association for Bridge and Structural Engineering (IABSE) | ||||
| License: | This creative work is copyrighted material and may not be used without explicit approval by the author and/or copyright owner. |
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