Shrinkage and Fatigue Performance of Novel Post-Combined Steel- UHPC Composite Decks
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Bibliographic Details
| Author(s): |
Yang Jiang
(Department of Bridge Engineering, Tongji University, Shanghai, China.)
Yi Lu (Department of Bridge Engineering, Tongji University, Shanghai, China.) Chen Xu (Department of Bridge Engineering, Tongji University, 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): | 937-943 | ||||
| Total no. of pages: | 7 | ||||
| DOI: | 10.2749/nanjing.2022.0937 | ||||
| Abstract: |
Considerable UHPC shrinkage has an enormous impact on steel-UHPC composite deck. To this end, a novel post-combined orthotropic steel-naturally cured UHPC composite deck was proposed in this paper. Two full-scale segmental steel-UHPC composite decks, one normal while the other post-combined, were fabricated for shrinkage monitoring and fatigue loading tests. The monitoring results showed that shrinkage-induced secondary stress on the steel deck of the post- combined specimen was lower than that of the normal one. And the fatigue loading test results showed that there was no significantly worse damage on the rib-deck weld detail in the post- combined specimen. In other words, the post-combined method mitigated UHPC shrinkage restraint without obvious deterioration to fatigue resistance. It contributed to establishing an economical alternative that could effectively address the adverse shrinkage effect on a steel-UHPC composite deck. |
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| Keywords: |
fatigue damage steel-UHPC composite deck post-combined method shrinkage effect group studs
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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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