Extended hyperbolic model for sand-to-concrete interfaces
Extended hyperbolic model for sand-to-concrete interfaces
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DOI：
10.1061/(asce)1090-0241(2003)129:11(993
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发表时间：
2003-11
影响因子：
3.9
通讯作者：
J. E. Gómez;G. Filz;R. Ebeling
中科院分区：
文献类型：
--
作者：
J. E. Gómez;G. Filz;R. Ebeling
提出了一种用于土-结构相互作用分析的相对简单的四参数扩展双曲线界面模型。该模型适应任意应力路径方向，包括三个重要元素：(1)界面剪切过程中屈服面的发展；(2)适用于任何应力路径方向的屈服诱导剪切刚度公式；(3)卸载-再加载剪切刚度公式。根据在不同应力路径下三种不同类型的砂与混凝土表面之间的界面进行的剪切试验结果，对该模型进行了评估。测量和计算的界面响应的比较表明，该模型能够准确地估计砂土-混凝土界面的响应。
A relatively simple, four-parameter extended hyperbolic model for interfaces was developed for use in soil-structure interaction analyses. The model accommodates arbitrary stress path directions and includes three important elements: (1) development of a yield surface during interface shear; (2) a formulation for yield-inducing shear stiffness that is applicable to any stress path orientation; and (3) a formulation for unloading-reloading shear stiffness. The model was evaluated against the results of shear tests performed at the interface between three different types of sand and a concrete surface under a variety of stress paths. Comparisons between measured and calculated interface response indicate that the model provides accurate estimates of the response of sand-to-concrete interfaces.