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Influence of Anchor Length and Drilled Hole on Mechanical Behaviour of Masonry Column Structures Strengthened with Bonded Anchor

 Influence of Anchor Length and Drilled Hole on Mechanical Behaviour of Masonry Column Structures Strengthened with Bonded Anchor
Auteur(s): , , ,
Présenté pendant IABSE Symposium: Challenges for Existing and Oncoming Structures, Prague, Czech Republic, 25-27 May 2022, publié dans , pp. 1204-1211
DOI: 10.2749/prague.2022.1204
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Masonry structures like stone lanterns are collapsed by lateral forces and cracked by deterioration. Some of them should be repaired without changing their original appearance as heritage structure...
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Détails bibliographiques

Auteur(s): (Kumamoto University, Kumamoto, JAPAN)
(Kumamoto University, Kumamoto, JAPAN)
(Kumamoto University, Kumamoto, JAPAN)
(Kumamoto University, Kumamoto, JAPAN)
Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Symposium: Challenges for Existing and Oncoming Structures, Prague, Czech Republic, 25-27 May 2022
Publié dans:
Page(s): 1204-1211 Nombre total de pages (du PDF): 8
Page(s): 1204-1211
Nombre total de pages (du PDF): 8
DOI: 10.2749/prague.2022.1204
Abstrait:

Masonry structures like stone lanterns are collapsed by lateral forces and cracked by deterioration. Some of them should be repaired without changing their original appearance as heritage structures. One way to solve the problems is bonded anchoring, but the design criteria are not established in Japan. Therefore, this paper conducted pull-out tests to investigate the mechanical behaviour of strengthened parts with a bonded anchor. The maximum load and stiffness in load versus pull-out displacement were proportional to embedment length in any failure modes, whereas they did not vary by drilled-hole diameter. Three modes; cone failure, combined failure of cone and pull-out failure, and split failure were confirmed. Since the split failure occurred regardless of embedment length and drilled hole diameter, it seems to be related to initial cracks or compositions and uneven distribution of composed minerals and particles in the strengthened stone.

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