Structural Design and Analysis of Orthotropic Steel-SSDC Composite Deck Used for the Widening of the Songpu Bridge
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Bibliographic Details
| Author(s): |
Chunlei Zhang
(Department of Bridge Engineering, School of Civil Engineering, Tongji University, Shanghai, China)
Changyu Shao (Shanghai Municipal Engineering Design Institute (Group) Co.,Ltd. ,Shanghai, China; Shanghai Engineering Research Center of High Performance Composite Bridges ,Shanghai, China) Qingtian Su (Department of Bridge Engineering, School of Civil Engineering, Tongji University, Shanghai, China; Shanghai Engineering Research Center of High Performance Composite Bridges ,Shanghai, China) Qian Wang (Shanghai Municipal Engineering Design Institute (Group) Co.,Ltd. ,Shanghai, China; Shanghai Engineering Research Center of High Performance Composite Bridges ,Shanghai, China) Changyuan Dai (Shanghai Municipal Engineering Design Institute (Group) Co.,Ltd. ,Shanghai, China; Shanghai Engineering Research Center of High Performance Composite Bridges ,Shanghai, 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): | 1111-1118 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/nanjing.2022.1111 | ||||
| Abstract: |
The old Songpu Bridge was a double-deck railway-highway combined steel truss bridge. In the widening and renovation project of Songpu Bridge, the upper deck, which carries highway traffic, was widened from 12 m to 24.5 m. To achieve an appropriate self-weight and better durability, a kind of orthotropic composite deck was used for the reconstructed upper deck; this deck consists of an 80 mm-thick low-shrinkage high-strength ductile concrete (SSDC) layer and orthotropic steel deck plates. Three types of SSDC materials with different composition and mechanical properties are adopted in regions with different tensile stress levels. The detailed design and key considerations of the composite deck are introduced in this paper. Finite element analysis of the composite deck is carried out, and the models and results are presented. |
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| Keywords: |
Steel Truss Bridge the Songpu Bridge Widening of bridge Orthotropic composite deck Low-shrinkage high-strength ductile concrete
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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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