Finite Element Analysis of Steel-Shotcrete Composite Using the Fiber Beam-Column Element

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Abstract:

Owing to strong nonlinearity of shotcrete and difficulty of determining the equivalent material properties of steel-shotcrete composites for numerical analysis, methods are required to estimate nonlinear behavior of steel-shotcrete composite in the computational aspect efficiently. In this study, the behavior of steel-shotcrete composites, main primary supports in the NATM tunnel, are estimated by finite element method using the fiber beam-column element. The numerical results are compared with results of uniaxial and flexural test. Results of comparison show that finite element analysis of using fiber beam-column element can be an efficient tool of estimating the steel-shotcrete composite as the primary support in the NATM tunnel.

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1359-1363

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January 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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DOI: 10.1016/s0886-7798(01)00052-9

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