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Title
Japanese: 
English:Shear performance evaluation of PHC piles under different levels of axial load ratio 
Author
Japanese: Oktiovan Yopi Prabowo, 大滝 泰河, 小原 拓, 河野 進, 浅井 陽一, 小林 勝已, 渡邊 秀和, MUKAI David Jiro.  
English: Oktiovan Y P, Otaki T, Obara T, Kono S, Asai Y, Kobayashi K, Watanabe H, Mukai D.  
Language English 
Journal/Book name
Japanese: 
English:Journal of Constructional Steel Research, Elsevier 
Volume, Number, Page Vol. 51    9    2091-2112
Published date Apr. 25, 2022 
Publisher
Japanese: 
English:John Wiley and Sons Ltd. 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Official URL https://doi.org/10.1016/j.engstruct.2020.111465
 
DOI https://doi.org/10.1002/eqe.3655
Abstract Precast prestressed high-strength spun concrete (PHC) piles are one of the common types of piles used in Japan due to its high bearing capacity. These piles have been utilized as an industrial standard since the 1970s as part of earthquakeresilient foundation systems. The focus of this research is to examine the shear performance of PHC piles subjected to large earthquake loads. Three hollowsection PHC pile specimens were tested under constant compressive or tensile axial load along with quasi-static antisymmetric lateral load. An investigation using finite element analysis was carried out to reproduce the damage that occurred during the experiment. Comparison between experimental and analytical results were presented in terms of global and local behaviors of the piles. The finite element models were able to simulate axial splitting cracks that occurred for specimens under axial compression load. In addition, a parametric study was conducted to observe the influence of axial load ratio and shear span to diameter ratio on the shear capacity and failuremode of PHCpiles. The study results along with the results from a PHC pile database are compared to the shear design equation proposed in the guidelines for PHC piles from the Architectural Institute of Japan (AIJ).

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