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Experimental and Numerical Study on the Seismic Performance of Precast Bridge Column with an Improved Grouted Corrugated Duct Connection Design

Experimental and Numerical Study on the Seismic Performance of Precast Bridge Column with an Improved Grouted Corrugated Duct Connection Design
Autor(en): , , ,
Beitrag für IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022, veröffentlicht in , S. 1919-1926
DOI: 10.2749/nanjing.2022.1919
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In this paper, an improved connection design of the precast bridge column is proposed, including new design of grouted corrugated steel duct and a shallow recess pocket at the top of footing connec...
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Bibliografische Angaben

Autor(en): (Tongji University, Shanghai, China)
(Tongji University, Shanghai, China)
(Tongji University, Shanghai, China)
(Shanghai Typhoon Institute, Shanghai, China)
Medium: Tagungsbeitrag
Sprache(n): Englisch
Tagung: IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022
Veröffentlicht in:
Seite(n): 1919-1926 Anzahl der Seiten (im PDF): 8
Seite(n): 1919-1926
Anzahl der Seiten (im PDF): 8
DOI: 10.2749/nanjing.2022.1919
Abstrakt:

In this paper, an improved connection design of the precast bridge column is proposed, including new design of grouted corrugated steel duct and a shallow recess pocket at the top of footing connection for the assembly of precast concrete bridge columns, which has a good seismic performance, durability and facilitate constructability. The improved grouted corrugated steel duct which can increase the bonding mechanism and facilitate constructability expected to perform better than conventional corrugated galvanized steel ducts used for post-tensioning applications. Finite element analysis is then conducted. It is found that the confining effect (support and friction force) provided by recess sidewall keeps the connection in good integrity. It also prevents early deformation and early development of transverse cracks along the connection interface, which further avoids the damage concentration at connection joint, transfers the plastic hinge region.
Stichwörter:
Finite-Elemente-Analyse
Copyright: © 2022 International Association for Bridge and Structural Engineering (IABSE)
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