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Numerical Study on Shotcrete Lining with Steel Reinforcement Using a Fiber Section Element
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 Title & Authors
Numerical Study on Shotcrete Lining with Steel Reinforcement Using a Fiber Section Element
Kim, Jeong Soo; Yu, Jee Hwan; Kim, Moon Kyum;
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 Abstract
In this study, the load capacities and behaviors of a shotcrete member with steel supports, as composite member, are investigated numerically by using a fiber section element. The cross section of a shotcrete lining with steel support is divided into a bundle of fibers, which are allocated nonlinear stress-strain relations and used for determining internal forces. To verify the used approach of the finite element method for shotcrete with steel supports, the load-displacement relations of shotcrete lining obtained by numerical analysis are compared with existing experimental results and are analyzed with the stress distribution of the shotcrete and steel support obtained numerically. As a result, it is shown that the proposed approach can predict the load capacities of each material and the overall nonlinear behavior of shotcrete lining with steel supports. The change of location of the neutral axis and the flexural resistance ratio of each material are also derived from the stress distribution of the cross section of the shotcrete lining with steel supports. From the results, it is concluded that the flexural resistance performance of steel support should be considered in shotcrete lining design.
 Keywords
Fiber section element;Steel support;Shotcrete;Flexural resistance ratio;Nonlinear finite element analysis;
 Language
Korean
 Cited by
 References
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