- Volume 27 Issue 5
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Simplified Analysis of Pile Bent Structures and Minimum Reinforcement Ratio
단일 현장타설말뚝의 간편해석 및 최소 철근비 분석
- Kim, Jae-Young (Dept. of Civil and Environmental Engrg., Yonsei Univ.) ;
- Hwang, Taik-Jean (Dept. of Civil Engrg., Dongeui Univ.) ;
- Jeong, Sang-Seom (Dept. of Civil and Environmental Engrg., Yonsei Univ.)
- Received : 2010.12.28
- Accepted : 2011.04.15
- Published : 2011.05.31
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.
Column-pile interactions;Equivalent base spring model;Minimum reinforcement ratio;Pile bent structures;Simplified analysis;Virtual fixed point theory
Supported by : 국토해양부
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