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Experimental Study of the Post-Tensioned Prefabricated Retaining Blocks with Mortise-Tenon Joint

 Experimental Study of the Post-Tensioned Prefabricated Retaining Blocks with Mortise-Tenon Joint
Auteur(s): , , ,
Présenté pendant IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022, publié dans , pp. 470-476
DOI: 10.2749/nanjing.2022.0470
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Conventional sacrificial shear keys in both bridge abutments and pier cap beams have been proved to be helpful to limit the over displacement of the superstructure under the designed earthquake eve...
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Détails bibliographiques

Auteur(s): (Xiangtan University, Xiangtan, P.R. China)
(Xiangtan University, Xiangtan, P.R. China)
(Xiangtan University, Xiangtan, P.R. China)
(Hunan University, Changsha, P.R. China)
Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022
Publié dans:
Page(s): 470-476 Nombre total de pages (du PDF): 7
Page(s): 470-476
Nombre total de pages (du PDF): 7
DOI: 10.2749/nanjing.2022.0470
Abstrait:

Conventional sacrificial shear keys in both bridge abutments and pier cap beams have been proved to be helpful to limit the over displacement of the superstructure under the designed earthquake event. However, the advantage of the sacrificial shear keys depends on the severe damage of the shear key itself or the stem wall, which would completely break off the mechanical connection between one concrete component and another. In addition, it is time-consuming and costly to repair and reinforce the conventional shear keys once it is severely damaged in huge earthquake event. Therefore, this paper proposed a novel post-tensioned prefabricated concrete retaining block with mortise-tenon joint. Four retaining block specimens were designed and tested to study its anti- seismic effectiveness and basic mechanical properties. The influence of the structural material and forms on seismic damage mode of the proposed retaining blocks were investigated.

Mots-clé:
pont test
Copyright: © 2022 International Association for Bridge and Structural Engineering (IABSE)
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