Experimental Study on Simply Supported Bridges of Steel-Concrete Composite Structure Strengthened with Externally Pre-Stressed CFRP Plates
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Bibliographic Details
| Author(s): |
Yin Shen
(Tongji University, Shanghai, China)
Xu Jiang (Tongji University, Shanghai, China) Xuhong Qiang (Tongji University, Shanghai, China) Longlong Chen (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): | 1641-1649 | ||||
| Total no. of pages: | 9 | ||||
| DOI: | 10.2749/nanjing.2022.1641 | ||||
| Abstract: |
This paper mainly studies the mechanical properties of steel-concrete composite beams reinforced with trapezoidal prestressed un-bonded retrofit (TPUR) system. The prestressing of CFRP plate through the jacking of columns can not only apply the prestressing force to the main beam, but also provide upward lifting force to the bottom of the main beam to reduce the deflection of the original structure. Moreover, the surface treatment of steel beams is not required in the TPUR system, which can improve the speed and efficiency of reinforcement construction. The effects of the amount of CFRP, the prestress level, the height of the pillars and other parameters on the stiffness and bearing capacity of the composite beam are studied through static tests on the scaled model. |
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| Keywords: |
CFRP plate steel-concrete composite beam flexural bearing capacity tension string reinforcement active reinforcement method
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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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