Research on Concrete Box Girder Bridge Widening Based on Spatial Grid Model
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Bibliographic Details
| Author(s): |
Chenglin Sun
(China Construction Sixth Engineering Bureau Corp, Ltd, Tianjin, China)
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Engineering for Sustainable Development, New Delhi, India, 20-22 September 2023 | ||||
| Published in: | IABSE Congress New Delhi 2023 | ||||
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| Page(s): | 699-704 | ||||
| Total no. of pages: | 6 | ||||
| DOI: | 10.2749/newdelhi.2023.0699 | ||||
| Abstract: |
In this paper, based on a practical project, the spatial grid model is used to analyze the stress of the widened bridge. By comparing the stress changes, it is concluded that the shrinkage and creep of the new bridge will affect the stress of the whole structure after two bridges are connected. At the same time, the foundation settlement of the new bridge will generate additional stress at the connecting deck of the two bridges. Therefore, when the bridge is widened, certain measures should be taken to reduce the shrinkage and creep of the new bridge and the settlement of the foundation, so as to reduce the influence on the structure and ensure the safety of the widened bridge. |
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| Keywords: |
bridge widening spatial grid model Shrinkage and creep effect Foundation settlement
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