Experimental study on the bond-slip relationship between concrete and deformed rebar embedded in grouted corrugated duct
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Détails bibliographiques
| Auteur(s): |
Xu Wang
(School of Civil Engineering, Southeast University, Nanjing, China)
Zhao Liu (School of Civil Engineering, Southeast University, Nanjing, China) Jiacheng Zheng (School of Civil Engineering, Southeast University, Nanjing, China) |
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| Médium: | papier de conférence | ||||
| Langue(s): | anglais | ||||
| Conférence: | IABSE Symposium: Construction’s Role for a World in Emergency, Manchester, United Kingdom, 10-14 April 2024 | ||||
| Publié dans: | IABSE Symposium Manchester 2024 | ||||
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| Page(s): | 848-854 | ||||
| Nombre total de pages (du PDF): | 7 | ||||
| DOI: | 10.2749/manchester.2024.0848 | ||||
| Abstrait: |
The grouted corrugated duct (GCD) connection has appeared as an attractive option for joints between precast bridge pier segments due to its large construction tolerance and low cost. However, the bond-slip relationship between the embedded rebar and the mortar has not been clearly established, which underscores the need for experimental investigation. To this end, 24 pull-out experimental tests were conducted with/without GCD in this study. The results showed that GCD specimens had higher bond strength and plumper bond-slip curve than the specimens without GCD connection. Then, an analytical model based on thick-walled cylinder theory was proposed to determine the bond-slip constitutive curve of GCD connection. Finally, a modified cohesive model was developed at the interface between rebar and dummy rebar in finite element model. The proposed bond-slip model, finite element analysis and tested data match well with each other. |
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