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Simplified Analysis of Pile Bent Structures and Minimum Reinforcement Ratio

단일 현장타설말뚝의 간편해석 및 최소 철근비 분석

  • 김재영 (연세대학교 토목환경공학과) ;
  • 황택진 (동의대학교 토목공학과) ;
  • 정상섬 (연세대학교 토목환경공학과)
  • Received : 2010.12.28
  • Accepted : 2011.04.15
  • Published : 2011.05.31

Abstract

In this study, simplified analysis (discrete analysis of column and pile) of pile bent structures was performed on the basis of the equivalent base spring model. And the minimum reinforcement ratio in pile bent structures was evaluated by taking into account various factors. To obtain the detailed information, simplified analysis was performed for column-pile interactions and the behavior of a column-pile was estimated and highlighted. Based on this study, it is shown that previous design method based on virtual fixed point theory cannot adequately predict the physical behavior of pile bent structures. It is found that the maximum bending moment is located within craking moment of the pile when material non-linearity is considered. It is also found that the minimum reinforcement ratio (=0.4%) is appropriately applicable for the optimal design of pile bent structure under ultimate lateral loading.

Acknowledgement

Supported by : 국토해양부

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Cited by

  1. Analysis of Optimized Column-pile Length Ratio for Supplementing Virtual Fixed Point Design of Bent Pile Structures vol.33, pp.5, 2013, https://doi.org/10.12652/Ksce.2013.33.5.1915
  2. Analysis of Steel Reinforcement Ratio for Bent Pile Structures Considering Column-Pile Interaction vol.26, pp.2, 2014, https://doi.org/10.4334/JKCI.2014.26.2.181