Research on two Parameters Control of Walking-Type Incremental Launching Box Girder
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Bibliographic Details
| Author(s): |
Liming Zhu
(Nanjing Tech University, Nanjing, China)
Xinghui Deng (Nanjing Tech University, Nanjing, China) Qinyu Chen (Nanjing Tech University, Nanjing, China) Bo Wu (Nanjing Tech University, Nanjing, China) |
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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): | 1457-1464 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/nanjing.2022.1457 | ||||
| Abstract: |
In order to ensure the safe implementation of walking-type incremental launching steel box girder. Taking a simply supported wide steel box girder bridge as an example, this paper analyzes the local stress of the wide steel box girder with four supporting points of walking pusher, and quantitatively determines the three single parameter related control thresholds of lateral deflection, longitudinal pusher asynchrony and vertical lifting asynchrony that are concerned in the construction. Based on the single parameter control research, the two parameters dynamic control threshold range is proposed. The calculation results show that two parameters analysis provides a more reliable means for walking-type incremental launching construction and is a necessary supplement to the conventional single parameter control. |
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| Keywords: |
local stress walking-type incremental launching construction wide steel box girder multi-parameter control
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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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